{"title":"Honda 4-Stroke Outboard Engine Parts 135-300HP","description":"\u003csection id=\"hero\" style=\"padding:16px; border:1px solid #e5e5e5; border-radius:8px;\"\u003e\n  \u003cp\u003eThis page focuses on Honda 4-Stroke 135–300HP outboard engines. Use it to find compatible parts and practical service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Honda collection anytime. Scroll to the bottom of the page to start browsing parts for this engine, and on the collection page use the “Filter \u0026amp; Sort” controls to narrow results by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-outboard-parts\" style=\"display:inline-block; padding:10px 16px; background:#0a5; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All Honda Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width:980px; padding:16px 0;\"\u003e\n  \u003ch2\u003eHow to Identify Your 135–300HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eNameplate location: Look for the engine identification\/serial plate on the transom bracket or swivel bracket. A secondary label may be under the engine cowling.\u003c\/li\u003e\n    \u003cli\u003eReading the code: On Honda outboards, the model name typically starts with “BF”, followed by horsepower (e.g., BF150). Suffix letters\/numbers indicate shaft length, control type, and production revision\/year.\u003c\/li\u003e\n    \u003cli\u003ePlatform clues: 135–150HP models are usually inline‑4; 175–300HP models are V6. You can confirm by counting spark plug leads (4 vs 6) and overall cowl\/gearcase size.\u003c\/li\u003e\n    \u003cli\u003eRecord details: Note the full model designation and serial number before ordering to confirm parts compatibility.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"max-width:980px; padding:16px 0;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n\n  \u003ch3\u003eInline‑4 Platform (135–150HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInline‑4 EFI 4‑stroke, DOHC; many models utilize VTEC for broad torque and efficiency.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eBF135, BF150 series (various shaft lengths and control options).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eGood fuel economy, smooth operation, strong mid‑range performance.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eMany routine service parts (filters, plugs, anodes) are shared within the I‑4 family; verify water pump and thermostat specifics by model code and serial.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eV6 Platform (175–300HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e60° V6 EFI 4‑stroke; many variants equipped with VTEC for power and efficiency.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eBF175, BF200, BF225, BF250, BF300 series.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eHigh output with dependable mid‑range torque, strong charging capability, refined NVH.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eService parts often interchange within the V6 family; water pump service kits and thermostats can vary by year—confirm using full model\/serial.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"service-kits\" style=\"max-width:980px; padding:16px 0;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for Honda 4‑stroke outboards; always follow the official service manual and your actual operating conditions.\u003c\/p\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEngine oil \u0026amp; filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eUse marine‑grade FC‑W oil; replace filter at each oil change.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/oil-filters\" style=\"text-decoration:none;\"\u003eOil Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect for water intrusion\/metal. Replace sealing washers as needed.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/honda-lower-unit-seal-kits\" style=\"text-decoration:none;\"\u003eHonda Lower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect 100 hours; replace 200–300 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eUse the plug type and gap specified for your exact model.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\" style=\"text-decoration:none;\"\u003eSpark Plugs\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eFuel filter \/ water‑separating filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eReplace more often in high‑contamination or ethanol environments.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\" style=\"text-decoration:none;\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eFuel pump (inspection\/service)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect 200 hours; replace as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCheck pressure\/flow if experiencing hesitation or hard starting.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-pumps\" style=\"text-decoration:none;\"\u003eFuel Pumps\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eWater pump impeller\/kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 200 hours or 2 years\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eShorten interval for silty\/sandy water or low stream output.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/honda-water-pump-repair-kits\" style=\"text-decoration:none;\"\u003eHonda Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eThermostat (inspection\/replacement)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect annually; replace 2–3 years\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eReplace if running temperature is unstable or overheat alarms persist.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/honda-outboard-parts\" style=\"text-decoration:none;\"\u003eHonda Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAnodes (zinc\/aluminum\/magnesium)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect every 50 hours; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eChoose alloy based on salt, brackish, or fresh water use.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\" style=\"text-decoration:none;\"\u003eAnodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eTiming belt (Inline‑4)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect 400–500 hours; replace per manual (time\/hrs)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eReplace if aged, noisy, or cracked; tensioner condition is critical.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/belt\" style=\"text-decoration:none;\"\u003eBelt\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003cp style=\"font-size:12px; color:#666;\"\u003e*Intervals are typical for recreational use; commercial or harsh environments may require shorter intervals.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"max-width:980px; padding:16px 0;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-outboard-parts\" style=\"text-decoration:none;\"\u003eHonda Outboard Parts\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-water-pump-repair-kits\" style=\"text-decoration:none;\"\u003eHonda Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel Filtration: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\" style=\"text-decoration:none;\"\u003eFuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel Delivery: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-pumps\" style=\"text-decoration:none;\"\u003eFuel Pumps\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\" style=\"text-decoration:none;\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase Seals: \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-lower-unit-seal-kits\" style=\"text-decoration:none;\"\u003eHonda Lower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\" style=\"text-decoration:none;\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"max-width:980px; padding:16px 0;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eWeak tell‑tale stream or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eClear the tell‑tale, inspect intake screens, test thermostat function.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eWater pump kit, thermostat, intake screen\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCheck prop damage\/pitch, replace fuel filter, inspect spark plugs.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003ePropeller, fuel filter, spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eHard starting or rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003ePrime fuel system, check for air leaks and stale fuel, verify spark.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eFuel pump, fuel filter, spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect oil level\/condition; check for water intrusion at seals.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLower unit seal kit, gear lube, drain\/fill washers\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"max-width:980px; padding:16px 0;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable across different years or platforms?\u003c\/summary\u003e\n    \u003cp\u003eSome routine items interchange within a platform (Inline‑4 vs V6), but water pump kits, thermostats, and certain sensors vary by year and model. Use the full model code and serial to verify before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should I replace the water pump impeller?\u003c\/summary\u003e\n    \u003cp\u003eFor typical recreational use, every 2 years or ~200 hours is common. Shorten the interval if you run in sandy\/silty water, see a weak tell‑tale, or experience overheat warnings.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change the lower unit gear oil?\u003c\/summary\u003e\n    \u003cp\u003eAt least every 100 hours or annually. If water or metal is found in the oil, service seals and inspect gears immediately.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information helps confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the complete model designation (e.g., BF150), serial number, horsepower, approximate year, shaft length, and control type. Photos of the nameplate and the part being replaced are very helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px; border-top:1px solid #e5e5e5;\"\u003e\n  \u003cp\u003eReady to find the right components? Browse the main Honda collection and filter by horsepower, year, and model to zero in on compatible parts.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-outboard-parts\" style=\"display:inline-block; padding:10px 16px; background:#0a5; color:#fff; text-decoration:none; border-radius:6px;\"\u003eShop Honda Outboard Parts\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px; font-size:12px; color:#666;\"\u003eIf you’re unsure about your model, send us a photo of the nameplate and the part you need and we’ll help verify compatibility.\u003c\/p\u003e\n\u003c\/section\u003e","products":[{"product_id":"wedge-transom-saver-fits-yamaha-mercury-honda-johnson-suzuki-replaces-mar-mtspt-ym-08","title":"Wedge Transom Saver Motor Support – Fits Yamaha, Mercury, Honda, Johnson\/Evinrude \u0026 Suzuki Outboards","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis \u003cstrong\u003eWedge Transom Saver Motor Support\u003c\/strong\u003e is designed to support trailered outboard motors equipped with 2- or 3-ram hydraulic trim\/tilt systems. It fits over an extended trim\/tilt piston rod and provides a stable support point between the engine and transom area, helping reduce movement and the effects of road shock and vibration during transport.\u003c\/p\u003e\n  \u003cp\u003eThe wedge-style design is intended for a broad range of Yamaha, Mercury, Honda, Johnson\/Evinrude, and Suzuki outboards. Confirm your engine's trim\/tilt configuration and installation position before ordering.\u003c\/p\u003e\n  \u003cp\u003eThis aftermarket support is listed as a replacement reference for Yamaha \u003cstrong\u003eMAR-MTSPT-YM-08\u003c\/strong\u003e. Reference numbers identify comparable applications and should be checked against the original component and your engine configuration.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eSlides over the extended trim\/tilt piston rod for installation.\u003c\/li\u003e\n    \u003cli\u003eWedge-shaped, self-centering support design.\u003c\/li\u003e\n    \u003cli\u003eIncludes two steering stabilizers\/centering clips to help limit engine steering movement while trailering.\u003c\/li\u003e\n    \u003cli\u003eConstructed from durable plastic and EPDM rubber for marine and outdoor use.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003ePart Number References\u003c\/h2\u003e\n  \u003cp\u003eUse these references as comparison information only. Always verify physical design, ram arrangement, and application details before purchase.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number References\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand or Source\u003c\/th\u003e\n          \u003cth\u003eReference\u003c\/th\u003e\n          \u003cth\u003eNotes\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eMAR-MTSPT-YM-08\u003c\/td\u003e\n          \u003ctd\u003eOEM reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eAftermarket\u003c\/td\u003e\n          \u003ctd\u003eM-Y Wedge Universal Motor Support\u003c\/td\u003e\n          \u003ctd\u003eComparable replacement reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eEngine and Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eThe following application ranges are provided as general guidance for compatible 2- and 3-ram hydraulic trim\/tilt systems. Exact fit can vary by model, year, ram arrangement, and installation position. Verify your engine before purchase.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eModel or Range\u003c\/th\u003e\n          \u003cth\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eApplication Notes\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eCompatible outboards, including SHO applications\u003c\/td\u003e\n          \u003ctd\u003e115–350\u003c\/td\u003e\n          \u003ctd\u003e2- and 4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eFor compatible 2- or 3-ram trim\/tilt systems.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eF300–F350\u003c\/td\u003e\n          \u003ctd\u003e300–350\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eSome V8 applications may require two supports, one for each ram.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003eCompatible outboards\u003c\/td\u003e\n          \u003ctd\u003e135–300\u003c\/td\u003e\n          \u003ctd\u003e2- and 4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eFor compatible 2- or 3-ram trim\/tilt systems; installation is commonly on the starboard side.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eHonda\u003c\/td\u003e\n          \u003ctd\u003eCompatible outboards\u003c\/td\u003e\n          \u003ctd\u003e90–300\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eFor compatible 2- or 3-ram trim\/tilt systems; installation is commonly on the starboard side.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n          \u003ctd\u003eCompatible outboards, including E-TEC and FICHT applications\u003c\/td\u003e\n          \u003ctd\u003e150–300\u003c\/td\u003e\n          \u003ctd\u003e2- and 4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eFor compatible 2- or 3-ram trim\/tilt systems; installation is commonly on the starboard side.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSuzuki\u003c\/td\u003e\n          \u003ctd\u003eDF140–DF350\u003c\/td\u003e\n          \u003ctd\u003e140–350\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eFor compatible 2- or 3-ram trim\/tilt systems.\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n    \u003cdd\u003eWedge transom saver and outboard motor support\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eSlides over an extended trim\/tilt piston rod\u003c\/dd\u003e\n    \u003cdt\u003eApplication\u003c\/dt\u003e\n    \u003cdd\u003eCompatible 2- or 3-ram hydraulic trim\/tilt systems\u003c\/dd\u003e\n    \u003cdt\u003eDesign\u003c\/dt\u003e\n    \u003cdd\u003eWedge-shaped, self-centering support\u003c\/dd\u003e\n    \u003cdt\u003eConstruction\u003c\/dt\u003e\n    \u003cdd\u003ePlastic and EPDM rubber\u003c\/dd\u003e\n    \u003cdt\u003eColor\u003c\/dt\u003e\n    \u003cdd\u003eBlack\u003c\/dd\u003e\n    \u003cdt\u003eReference Length\u003c\/dt\u003e\n    \u003cdd\u003eApproximately 8.5 inches (215.9 mm), subject to product variation\u003c\/dd\u003e\n    \u003cdt\u003eIncluded Stabilizers\u003c\/dt\u003e\n    \u003cdd\u003eTwo steering stabilizers\/centering clips\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x Wedge Transom Saver Motor Support\u003c\/li\u003e\n    \u003cli\u003e2 x Steering Stabilizers\/Cent​​ering Clips\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eTrim the outboard to its maximum tilt position so the hydraulic ram or rams are fully extended.\u003c\/li\u003e\n    \u003cli\u003eIdentify the correct trim\/tilt piston for your engine. On many applications, the support is installed on the main or starboard-side ram.\u003c\/li\u003e\n    \u003cli\u003eClean the exposed piston rod and remove grease, dirt, or debris that could prevent a secure fit.\u003c\/li\u003e\n    \u003cli\u003eSlide the wedge support over the exposed piston rod. Ensure that it is seated and aligned correctly.\u003c\/li\u003e\n    \u003cli\u003eSlowly lower the motor until the support rests securely between the motor and transom mount. Do not force the motor against the support.\u003c\/li\u003e\n    \u003cli\u003eInstall the two included steering stabilizers\/centering clips on the hydraulic steering rods as appropriate for your steering system.\u003c\/li\u003e\n    \u003cli\u003eConfirm that the support and stabilizers remain secure before towing, and recheck them periodically during extended transport.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting and FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich outboard motors is this transom saver designed for?\u003c\/summary\u003e\n    \u003cp\u003eIt is designed for compatible Yamaha, Mercury, Honda, Johnson\/Evinrude, and Suzuki outboards using 2- or 3-ram hydraulic trim\/tilt systems. Review the application table and compare your engine's ram arrangement before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow is the wedge support installed?\u003c\/summary\u003e\n    \u003cp\u003eRaise the motor, extend the appropriate trim\/tilt ram, slide the wedge over the exposed piston rod, and lower the motor gently until it rests securely on the support. Install the two included steering stabilizers on the steering rods where appropriate.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this support work on a single-ram tilt system?\u003c\/summary\u003e\n    \u003cp\u003eNo. This support is intended for compatible 2- or 3-ram hydraulic trim\/tilt arrangements and should not be used on a single-ram setup unless the application is specifically confirmed.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the included steering stabilizers for?\u003c\/summary\u003e\n    \u003cp\u003eThe two included stabilizers\/centering clips help limit steering movement and side-to-side engine sway during trailering when installed correctly on the steering rods.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need one or two supports?\u003c\/summary\u003e\n    \u003cp\u003eMost compatible applications use one support. Certain large engines or configurations, including some Yamaha V8 applications, may require two supports—one for each ram. Check the engine manufacturer's guidance and the physical ram arrangement.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the support made of?\u003c\/summary\u003e\n    \u003cp\u003eThe support uses a combination of plastic and EPDM rubber intended for marine and outdoor trailering conditions.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM component?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is an aftermarket replacement support. Yamaha MAR-MTSPT-YM-08 is provided as a reference number for application comparison and does not indicate that this product is manufactured by Yamaha.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow should I verify compatibility?\u003c\/summary\u003e\n    \u003cp\u003eCompare the original support, piston-rod dimensions, ram arrangement, installation position, and engine model details. Do not rely on horsepower alone; year, model, stroke, and trim\/tilt configuration can affect fit.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify the engine model, year, horsepower, stroke, ram arrangement, and physical dimensions before ordering.\u003c\/li\u003e\n    \u003cli\u003eDo not use this support on a single-ram system unless compatibility has been specifically confirmed.\u003c\/li\u003e\n    \u003cli\u003eInspect the support and steering stabilizers for damage, looseness, or deterioration before each trip.\u003c\/li\u003e\n    \u003cli\u003eLower the motor gently onto the support; do not use excessive force or rely on the support as a substitute for proper trailering procedures.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended when the correct installation position is unclear.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMarine Parts Selection\u003c\/strong\u003e — Practical replacement components for real-world boating and trailering applications.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Support\u003c\/strong\u003e — Product information is organized to help you compare engine configuration and installation requirements.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eValue-Oriented Parts\u003c\/strong\u003e — Aftermarket solutions selected for everyday marine maintenance and repair needs.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718265114939,"sku":"22TS001","price":36.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Transom_Rubber_Support_and_Motor_Lock_for_Boat_Outboards_and_Stern_Drives_with_3_Rams_Trim_and_Tilt_Plastic_Saver_Protect_Bar_-_JLM_MARINE-8286846.jpg?v=1762958498"}],"url":"https:\/\/seasierra.com\/collections\/honda-4-stroke-outboard-engine-parts-135-300hp.oembed","provider":"SeaSierra","version":"1.0","type":"link"}