{"title":"Suzuki 2-Stroke 40-70HP Outboard Motor","description":"\u003csection id=\"hero\" style=\"padding:16px 0;\"\u003e\n  \u003cp\u003eThis page is for Suzuki 2-Stroke 40-70HP outboard engines. Use it to find compatible parts and practical service information, including maintenance tips, common replacement items, and troubleshooting guidance. You can also browse our main Suzuki outboard collection. Scroll to the bottom of this page to start browsing parts for this engine range, and remember you can use the Filter \u0026amp; Sort controls on the collection page to narrow results by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003cp\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-outboard-parts\" style=\"display:inline-block;padding:10px 14px;border:1px solid #1b5e20;border-radius:6px;text-decoration:none;\"\u003eBrowse All Suzuki Parts\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\"\u003e\n  \u003ch2\u003eHow to Identify Your 40–70HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eNameplate location: look on the transom\/clamp bracket or swivel bracket for a metal tag with the model and serial number.\u003c\/li\u003e\n    \u003cli\u003eReading the code: Suzuki 2-stroke midrange models often use a DT prefix (e.g., DT40) followed by suffix letters for shaft length (S\/L\/X), tiller vs. remote control, and other options.\u003c\/li\u003e\n    \u003cli\u003eConfirm fuel\/oil system: identify whether your motor is premix or has oil injection (on injected models, look for an oil tank and lines to the engine).\u003c\/li\u003e\n    \u003cli\u003ePlatform cues: midrange 2-strokes may be inline-3 (some variants inline-2\/inline-4). Cylinder count and year\/region can affect carburetor, ignition, and water pump parts.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n  \u003ch3\u003eMidrange Carbureted 2‑Stroke (40–70HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;max-width:900px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCarbureted 2-stroke, typically inline‑3 in this class (some variants inline‑2\/inline‑4 depending on year and market).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eExamples include DT40W\/WR and DT40WK; 50–70HP DT midrange models vary by region and year.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eLight weight, strong holeshot, straightforward seasonal service.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eParts can differ by model code, serial range, and shaft length. Water pump kits, anodes, and ignition components may change across revisions—verify using your exact 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\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for midrange 2-stroke outboards. Always confirm specifications and procedures in the official service manual for your exact model and serial range.\u003c\/p\u003e\n  \u003ctable style=\"width:100%;max-width:900px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGearcase (lower unit) oil\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect for water or metal; replace drain\/fill gaskets when serviced.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-lower-unit-seal-kits\"\u003eSuzuki Lower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eUse specified heat range and gap; carry spares aboard.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-spark-plug\"\u003eSuzuki Spark plug\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInline fuel filter\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eReplace if contaminated or if fuel flow is restricted.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-fuel-filters\"\u003eSuzuki Fuel filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eWater pump impeller\/kit\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect annually; replace every 2 seasons or 200 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eService sooner for sand\/silt use or weak telltale.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-water-pump-repair-kits\"\u003eSuzuki Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAnodes (external\/internal)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect every 50 hours; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eUse correct alloy for your waters (fresh, brackish, salt).\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-anodes\"\u003eSuzuki Anodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eOil injection system check (if equipped) \/ Premix verification\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAt spring commissioning and mid‑season\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eVerify pump operation, prime lines, inspect for leaks; for premix models, follow cowl decal\/manual for ratio.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-hoses\"\u003eSuzuki Hoses\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003ePropeller inspection\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEach trip; remove\/grease annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCheck for dings and line on the shaft; verify correct pitch for load.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-propellers\"\u003eSuzuki Propellers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-service-maintenance-kits\"\u003eSuzuki Service \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-water-pump-repair-kits\"\u003eSuzuki Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-fuel-filters\"\u003eSuzuki Fuel filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Tune‑Up: \u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-spark-plug\"\u003eSuzuki Spark plug\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eLower Unit \/ Seals: \u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-lower-unit-seal-kits\"\u003eSuzuki Lower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-anodes\"\u003eSuzuki Anodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropellers \u0026amp; Hardware: \u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-propellers\"\u003eSuzuki Propellers\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%;max-width:900px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eWeak telltale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect intake screens, telltale hose, and impeller condition; confirm thermostat operation.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eWater pump kit, thermostat, intake screen\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCheck propeller damage or wrong pitch, fuel filter restriction, primer bulb, and plug condition.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003ePropeller, fuel filter, spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eVerify fresh fuel, choke\/enrichment operation, and carburetor cleanliness; inspect plug gap.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eFuel filter, spark plugs, carburetor rebuild kit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eExcessive smoke (2‑stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eConfirm premix ratio or oil injection setting; check for stuck thermostat on cold‑running engines.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eSpark plugs, oil lines, thermostat\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect for water intrusion, damaged seals, and prop shaft line cuts; change oil and monitor.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eLower unit seal kit, drain\/fill gaskets, gear oil\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different years or platforms?\u003c\/summary\u003e\n    \u003cp\u003eSome items are shared across DT midrange models, but many parts changed with model updates, serial ranges, and regional variants. Always confirm with your full model code, serial number, and shaft length.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eInspect annually and replace about every two seasons or 200 hours, sooner if you run in sand or silt or if the telltale weakens.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change lower unit gear oil?\u003c\/summary\u003e\n    \u003cp\u003eAs a baseline, change gear oil every 100 hours or annually. Check condition after the first few outings each season and before winterization.\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 model code (e.g., DT40 plus suffix), serial number, shaft length (S\/L\/X), tiller vs. remote control, and country\/region. Photos of the nameplate and the part needing replacement are very helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px 0;\"\u003e\n  \u003cp\u003eReady to find parts by horsepower, year, and model? Browse our main Suzuki outboard collection to get the right fit for your Suzuki 2‑Stroke 40–70HP.\u003c\/p\u003e\n  \u003cp\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-outboard-parts\" style=\"display:inline-block;padding:10px 14px;border:1px solid #1b5e20;border-radius:6px;text-decoration:none;\"\u003eShop Suzuki Outboard Parts\u003c\/a\u003e\u003c\/p\u003e\n  \u003cp style=\"font-size:0.95em;color:#444;\"\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":"thermostat-50-c-122-f-fits-suzuki-df40-70-dt9-9-65-pu55-replaces-17670-93961-17670-93962","title":"50°C (122°F) Outboard Thermostat – Fits Suzuki DF40\/DF50\/DF60\/DF70 and DT9.9–DT65; Replaces 17670-93962 and 5030742","description":"\u003csection\u003e\n  \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 { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n    table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n    @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n  \u003c\/style\u003e\n\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis aftermarket \u003cstrong\u003e50°C (122°F) outboard thermostat\u003c\/strong\u003e is a single replacement thermostat for selected Suzuki outboard engines and compatible OMC, Johnson, and Evinrude applications. It is intended to regulate cooling-system operation at the specified 50°C (122°F) opening temperature.\u003c\/p\u003e\n  \u003cp\u003eThe supplier lists this thermostat as a replacement or cross-reference for Suzuki part numbers \u003cstrong\u003e17670-93960, 17670-93961, 17670-93962, 17670-93963, 17670-93964\u003c\/strong\u003e and for OMC, Johnson, or Evinrude numbers \u003cstrong\u003e5030742, 5031175, and 0769469\u003c\/strong\u003e. Aftermarket reference \u003cstrong\u003e18-S939\u003c\/strong\u003e is also listed. Always compare the original thermostat and confirm the complete engine model, year or model code, and stroke before ordering.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e50°C (122°F) opening temperature.\u003c\/li\u003e\n    \u003cli\u003eReplacement thermostat for selected Suzuki, OMC, Johnson, and Evinrude outboards.\u003c\/li\u003e\n    \u003cli\u003eSold as one thermostat; gasket or O-ring is not included unless specifically stated by the seller.\u003c\/li\u003e\n    \u003cli\u003eAftermarket replacement, not an OEM-branded component.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eThese are supplier-listed replacement and cross-reference numbers. A part-number match should be confirmed against the engine model and application before installation.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand or Reference\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003e17670-93960\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003e17670-93961\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003e17670-93962\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003e17670-93963\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003e17670-93964\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC \/ Johnson \/ Evinrude\u003c\/td\u003e\n\u003ctd\u003e5030742\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC \/ Johnson \/ Evinrude\u003c\/td\u003e\n\u003ctd\u003e5031175\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC \/ Johnson \/ Evinrude\u003c\/td\u003e\n\u003ctd\u003e0769469\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eAftermarket reference\u003c\/td\u003e\n\u003ctd\u003e18-S939\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\n  \u003cp\u003eThe company fitment information lists selected Suzuki DF and DT applications from 25 to 70 HP, plus OMC, Johnson, and Evinrude J\/BJ applications from 70 to 140 HP. Keep the model, year or model code, horsepower, and stroke together when checking compatibility.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Suzuki Engine Compatibility\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel or Application\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYear or Model Code\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eDF40\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eConfirm exact year and model code\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eDF50X-K10\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1999–2010 as listed\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eDF60\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eConfirm exact year and model code\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eDF70W-K9\u003c\/td\u003e\n\u003ctd\u003e70\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–2009 as listed\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eDT9.9K \/ DT9.9K\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eG–Y and 1986–2000 as listed\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eDT15K \/ DT15K1-K4\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eG–Y and 2001–2004 as listed\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eDT20, DT25, DT30G-Y\u003c\/td\u003e\n\u003ctd\u003e20–30\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2000 as listed\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eDT25, DT30K1-K2\u003c\/td\u003e\n\u003ctd\u003e25–30\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2001–2002 as listed\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eDT40C-W G-X\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–1999 as listed\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eDT40W-K1-K4\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2001–2004 as listed\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eDT55, DT65J-X\u003c\/td\u003e\n\u003ctd\u003e55–65\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1988–1999 as listed\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"OMC Johnson Evinrude Engine Compatibility\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eFitment Note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC \/ Johnson \/ Evinrude\u003c\/td\u003e\n\u003ctd\u003eJ\/BJ outboard applications\u003c\/td\u003e\n\u003ctd\u003e70–140\u003c\/td\u003e\n\u003ctd\u003eConfirm exact stroke\u003c\/td\u003e\n\u003ctd\u003eSupplier-listed application; verify model, year, and serial number\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n    \u003cdd\u003eMarine outboard thermostat\u003c\/dd\u003e\n    \u003cdt\u003eOpening Temperature\u003c\/dt\u003e\n    \u003cdd\u003e50°C (122°F)\u003c\/dd\u003e\n    \u003cdt\u003eApplication Range\u003c\/dt\u003e\n    \u003cdd\u003eSelected Suzuki 25–70 HP applications and selected OMC, Johnson, and Evinrude 70–140 HP applications\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eReplacement installation in the original thermostat housing\u003c\/dd\u003e\n    \u003cdt\u003eProduct Construction\u003c\/dt\u003e\n    \u003cdd\u003eAftermarket replacement; material specification is not provided\u003c\/dd\u003e\n    \u003cdt\u003eGasket or O-Ring\u003c\/dt\u003e\n    \u003cdd\u003eNot included unless specifically stated by the seller\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\n  \u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e 50°C (122°F) outboard thermostat\u003c\/li\u003e\n    \u003cli\u003eGasket or O-ring not included\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eTurn the engine off and allow it to cool completely before beginning service.\u003c\/li\u003e\n    \u003cli\u003eFollow the engine manufacturer's service procedure for accessing the thermostat housing.\u003c\/li\u003e\n    \u003cli\u003eRemove the housing cover and note the original thermostat orientation.\u003c\/li\u003e\n    \u003cli\u003eRemove the old thermostat and inspect the housing, sealing surfaces, and related components for corrosion or damage.\u003c\/li\u003e\n    \u003cli\u003eClean the mating surfaces without damaging the housing.\u003c\/li\u003e\n    \u003cli\u003eInstall the replacement thermostat in the same orientation as the original part.\u003c\/li\u003e\n    \u003cli\u003eInstall a new gasket or O-ring if required by the engine service procedure; this product does not include one.\u003c\/li\u003e\n    \u003cli\u003eReinstall the housing cover and tighten the fasteners to the manufacturer's specified torque.\u003c\/li\u003e\n    \u003cli\u003eRun the engine according to the service manual and check for leaks and proper cooling-system operation.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat temperature is this thermostat rated for?\u003c\/summary\u003e\n    \u003cp\u003eThis thermostat is listed for a 50°C (122°F) opening temperature.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this thermostat an OEM part?\u003c\/summary\u003e\n    \u003cp\u003eNo. This listing is for an aftermarket replacement thermostat. The OEM and reference numbers are provided only to help identify compatible applications.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes the thermostat include a gasket or O-ring?\u003c\/summary\u003e\n    \u003cp\u003eNo. The package contains one thermostat only. Replace the gasket or O-ring separately when required by the engine manufacturer's service procedure.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm fitment?\u003c\/summary\u003e\n    \u003cp\u003eMatch the complete engine brand, model, horsepower, stroke, year or model code, and serial-number range where applicable. Also compare the original thermostat and its listed part number before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are common symptoms of a faulty thermostat?\u003c\/summary\u003e\n    \u003cp\u003ePossible symptoms include overheating, slow warm-up, unstable operating temperature, or improper cooling-system performance. Diagnose the complete cooling system before replacing the thermostat.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eNever service a hot engine or pressurized cooling system.\u003c\/li\u003e\n    \u003cli\u003eVerify the exact engine model, year or model code, horsepower, stroke, and serial number before purchase.\u003c\/li\u003e\n    \u003cli\u003eDo not rely on a part number alone when multiple engine versions use different thermostats.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement, not an OEM-branded component.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended when the correct service procedure or torque specification is not available.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cp\u003eSea Sierra supplies aftermarket marine replacement parts for service and repair applications. Please contact support if you need help comparing the listed reference number with your original part.\u003c\/p\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723975725371,"sku":"21TH031","price":26.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/21TH031_1_5ff282f2-10c3-44fd-b9fa-8542a573c989.jpg?v=1763039005"}],"url":"https:\/\/seasierra.com\/collections\/suzuki-2-stroke-40-70hp-outboard-motor.oembed","provider":"SeaSierra","version":"1.0","type":"link"}