{"product_id":"boot-protector-fits-mercury-25-50hp-outboard-replaces-mercury-822158","title":"Boot Protector – Fits Mercury 25-50HP Outboard (Replaces Mercury 822158)","description":"\u003csection\u003e\n\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\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\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\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\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eBoot Protector 822158\u003c\/strong\u003e serves as a direct-fit replacement shift rod boot for a wide range of Mercury outboard engines. It is designed for Mercury 25-50HP 4-Stroke models from 1997–2025 and Mercury 30-50HP 2-Stroke models from 1995–2025, ensuring a precise seal to protect internal components.\u003c\/p\u003e\n\u003cp\u003eIt provides a direct interchange for Mercury 822158, SEI Marine 98-263-23, GLM 89083, and UANOFCN 822158.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalls via a simple press-fit connection, requiring no special tools.\u003c\/li\u003e\n\u003cli\u003eEngineered with a UV and saltwater-resistant rubber compound suitable for harsh marine environments.\u003c\/li\u003e\n\u003cli\u003eThe package includes one shift boot for a complete replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e822158\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSEI Marine\u003c\/td\u003e\n\u003ctd\u003e98-263-23\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e89083\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eUANOFCN\u003c\/td\u003e\n\u003ctd\u003e822158\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eThis part is designed exclusively for the Mercury models listed. Please verify your engine's specifications match the details provided.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\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\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e25 HP\u003c\/td\u003e\n        \u003ctd\u003e25\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997–2025\u003c\/td\u003e\n        \u003ctd\u003e822158\u003c\/td\u003e\n        \u003ctd\u003eAll serial ranges\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e30 HP (2 CYL)\u003c\/td\u003e\n        \u003ctd\u003e30\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1995–2025\u003c\/td\u003e\n        \u003ctd\u003e822158\u003c\/td\u003e\n        \u003ctd\u003eStandard and EFI\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e30 HP (3 CYL)\u003c\/td\u003e\n        \u003ctd\u003e30\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997–2025\u003c\/td\u003e\n        \u003ctd\u003e822158\u003c\/td\u003e\n        \u003ctd\u003eCarb, EFI, and JET\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e40 HP (2 CYL)\u003c\/td\u003e\n        \u003ctd\u003e40\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1995–2025\u003c\/td\u003e\n        \u003ctd\u003e822158\u003c\/td\u003e\n        \u003ctd\u003eStandard configuration\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e40 HP (3 CYL)\u003c\/td\u003e\n        \u003ctd\u003e40\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997–2025\u003c\/td\u003e\n        \u003ctd\u003e822158\u003c\/td\u003e\n        \u003ctd\u003eCarb and EFI versions\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e40 HP Italy\u003c\/td\u003e\n        \u003ctd\u003e40\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2000–2015\u003c\/td\u003e\n        \u003ctd\u003e822158\u003c\/td\u003e\n        \u003ctd\u003eEuropean market\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e45 HP Bodensee\u003c\/td\u003e\n        \u003ctd\u003e45\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2000–2015\u003c\/td\u003e\n        \u003ctd\u003e822158\u003c\/td\u003e\n        \u003ctd\u003eItaly manufactured\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e50 HP (3 CYL)\u003c\/td\u003e\n        \u003ctd\u003e50\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1995–2025\u003c\/td\u003e\n        \u003ctd\u003e822158\u003c\/td\u003e\n        \u003ctd\u003eStandard configuration\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e50 HP\u003c\/td\u003e\n        \u003ctd\u003e50\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997–2025\u003c\/td\u003e\n        \u003ctd\u003e822158\u003c\/td\u003e\n        \u003ctd\u003eStandard and Bigfoot\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e50 HP Bigfoot\u003c\/td\u003e\n        \u003ctd\u003e50\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997–2025\u003c\/td\u003e\n        \u003ctd\u003e822158\u003c\/td\u003e\n        \u003ctd\u003eExtended lower unit\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eBoot Protector \/ Shift Boot\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM replacement, press-fit\u003c\/dd\u003e\n    \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eCompatible with all fuel types\u003c\/dd\u003e\n    \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003ePress-fit installation\u003c\/dd\u003e\n    \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMarine-grade rubber compound\u003c\/dd\u003e\n    \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n    \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e63.5 mm L x 44.45 mm W x 31.75 mm H (2.50\" x 1.75\" x 1.25\")\u003c\/dd\u003e\n    \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e13.6 g (0.03 lbs)\u003c\/dd\u003e\n    \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eShift rod cap boot\u003c\/dd\u003e\n    \u003cdt\u003eWorking Pressure\u003c\/dt\u003e\n\u003cdd\u003eStandard marine operating pressure\u003c\/dd\u003e\n    \u003cdt\u003eBurst Pressure\u003c\/dt\u003e\n\u003cdd\u003eExceeds OEM specifications\u003c\/dd\u003e\n    \u003cdt\u003eOperating Temperature\u003c\/dt\u003e\n\u003cdd\u003e-40°C to 93°C (-40°F to 200°F)\u003c\/dd\u003e\n    \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e1 Year manufacturer warranty\u003c\/dd\u003e\n    \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eSaltwater resistant, UV stable, oil resistant\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Shift Boot (822158)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003eInstallation is a direct replacement for the original boot. Ensure the shift rod is clean and free of debris. The new boot is installed via a press-fit connection, seating it firmly to create a proper seal. No special tools are required, but ensure it is fully seated to prevent water intrusion.\u003c\/p\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if this boot protector fits my engine?\u003c\/summary\u003e\u003cp\u003eThis part fits specific Mercury models from 25HP to 50HP manufactured between 1995 and 2025. Please check the \"Engine \u0026amp; Model Compatibility\" table and verify your engine model and year against the list to ensure a correct fit.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs my old shift boot needs replacing?\u003c\/summary\u003e\u003cp\u003eLook for visible cracks, brittleness, or tearing in the rubber. A loose or improper fit can also allow water and debris into the lower casing, indicating a need for replacement.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should this boot be inspected or replaced?\u003c\/summary\u003e\u003cp\u003eIt is good practice to inspect the shift boot during regular lower unit maintenance or at least once per season. Replace it at the first sign of wear, degradation, or damage to protect internal components.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this part different from the original Mercury part?\u003c\/summary\u003e\u003cp\u003eWhile this is an aftermarket part, it is designed to meet or exceed OEM specifications for fit, material, and function, offering a reliable alternative to the original 822158 boot.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eMy engine isn't listed, but the part looks similar. Can I use it?\u003c\/summary\u003e\u003cp\u003eWe do not recommend using this part if your engine model is not explicitly listed in the compatibility chart. Small differences in design can affect the seal and performance, potentially leading to damage. Always use the specified part for your engine.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the main function of this boot?\u003c\/summary\u003e\u003cp\u003eThis boot creates a seal around the shift rod as it enters the lower unit (gearcase), preventing water, salt, and debris from contaminating the gear lube and internal mechanisms.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShipping speed \u0026amp; cost?\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWarranty \u0026amp; returns?\u003c\/summary\u003e\u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723801203003,"sku":"23BS362R","price":15.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/23BS362R.png?v=1763032180","url":"https:\/\/seasierra.com\/products\/boot-protector-fits-mercury-25-50hp-outboard-replaces-mercury-822158","provider":"SeaSierra","version":"1.0","type":"link"}