{"product_id":"v-belt-fits-mercruiser-120-140hp-2-5l-3-0l-replaces-57-65607q","title":"V-Belt – Fits MerCruiser 120-140HP, 2.5L-3.0L (Replaces 57-65607Q)","description":"\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\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis high-quality \u003cstrong\u003eV-Belt – Fits MerCruiser 120, 140, 2.5L, 3.0L Engines\u003c\/strong\u003e is designed for the power steering system on various stern drive models manufactured between 1974 and 2008. It serves as a reliable replacement to restore proper power steering function and performance.\u003c\/p\u003e\n  \u003cp\u003eThis belt is a direct replacement for Mercury\/MerCruiser part numbers 57-65607Q, 57-65607, and 57-65607T. It also interchanges with aftermarket references such as Sierra 18-15370 and FridayParts 18-15370.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eDesigned specifically for power steering pump applications on listed models.\u003c\/li\u003e\n    \u003cli\u003eConstructed from a durable rubber and fiber composite for longevity and grip.\u003c\/li\u003e\n    \u003cli\u003eTotal length of 37 inches (940 mm) provides a precise fit for correct tension.\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 brands.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Interchange References\"\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\/MerCruiser\u003c\/td\u003e\n          \u003ctd\u003e57-65607Q\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\/MerCruiser\u003c\/td\u003e\n          \u003ctd\u003e57-65607\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\/MerCruiser\u003c\/td\u003e\n          \u003ctd\u003e57-65607T\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSierra\u003c\/td\u003e\n          \u003ctd\u003e18-15370\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eFridayParts\u003c\/td\u003e\n          \u003ctd\u003e18-15370\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 and year in the table below to ensure correct fitment.\u003c\/p\u003e\n  \u003cp\u003eThis power steering belt is engineered for the following MerCruiser (Mercury Marine) engines.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine 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\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e120\u003c\/td\u003e\n          \u003ctd\u003e120\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1974–1982\u003c\/td\u003e\n          \u003ctd\u003e57-65607Q\u003c\/td\u003e\n          \u003ctd\u003e153 CID \/ L4 engines\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e120\u003c\/td\u003e\n          \u003ctd\u003e120\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1982–1986\u003c\/td\u003e\n          \u003ctd\u003e57-65607Q\u003c\/td\u003e\n          \u003ctd\u003e153 CID \/ L4 engines\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e2.5L\u003c\/td\u003e\n          \u003ctd\u003e120\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1987–1989\u003c\/td\u003e\n          \u003ctd\u003e57-65607Q\u003c\/td\u003e\n          \u003ctd\u003e153 CID \/ L4 engines\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e140\u003c\/td\u003e\n          \u003ctd\u003e140\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1974–1982\u003c\/td\u003e\n          \u003ctd\u003e57-65607Q\u003c\/td\u003e\n          \u003ctd\u003e181 CID \/ L4 engines\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e140\u003c\/td\u003e\n          \u003ctd\u003e140\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1982–1999\u003c\/td\u003e\n          \u003ctd\u003e57-65607Q\u003c\/td\u003e\n          \u003ctd\u003e181 CID \/ L4 engines\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e3.0L\u003c\/td\u003e\n          \u003ctd\u003e140\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1987–1994\u003c\/td\u003e\n          \u003ctd\u003e57-65607Q\u003c\/td\u003e\n          \u003ctd\u003e181 CID \/ L4 engines\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e3.0L\u003c\/td\u003e\n          \u003ctd\u003e140\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1998–1999\u003c\/td\u003e\n          \u003ctd\u003e57-65607Q\u003c\/td\u003e\n          \u003ctd\u003e181 CID \/ L4 engines\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e3.0L\u003c\/td\u003e\n          \u003ctd\u003e140\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1999–2008\u003c\/td\u003e\n          \u003ctd\u003e57-65607Q\u003c\/td\u003e\n          \u003ctd\u003e181 CID \/ L4 engines\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e3.0LX\u003c\/td\u003e\n          \u003ctd\u003e140\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1990–1995\u003c\/td\u003e\n          \u003ctd\u003e57-65607Q\u003c\/td\u003e\n          \u003ctd\u003e181 CID \/ L4 engines\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e3.0LX\u003c\/td\u003e\n          \u003ctd\u003e140\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1986–1997\u003c\/td\u003e\n          \u003ctd\u003e57-65607Q\u003c\/td\u003e\n          \u003ctd\u003e181 CID \/ L4 engines\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\u003eV-Belt\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003ePower Steering Belt\u003c\/dd\u003e\n    \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eRubber\/Fiber Composite\u003c\/dd\u003e\n    \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n    \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e37 inches (940 mm)\u003c\/dd\u003e\n    \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eStandard V-Belt\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 V-Belt (57-65607Q)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDisconnect the boat's battery cables for safety.\u003c\/li\u003e\n    \u003cli\u003eLocate the power steering pump and note the routing of the existing belt. Taking a photo can be helpful.\u003c\/li\u003e\n    \u003cli\u003eLoosen the tensioner pulley or the pump's mounting bolts just enough to release tension on the belt.\u003c\/li\u003e\n    \u003cli\u003eCarefully slip the old belt off the pulleys.\u003c\/li\u003e\n    \u003cli\u003eCompare the new belt against the old one to confirm the length and width are identical.\u003c\/li\u003e\n    \u003cli\u003eRoute the new belt correctly around the crankshaft, power steering pump, and any idler pulleys.\u003c\/li\u003e\n    \u003cli\u003eRe-apply tension to the belt. As a general guide, there should be about a half-inch of deflection when pressed firmly. Do not overtighten, as this can damage bearings.\u003c\/li\u003e\n    \u003cli\u003eTighten all mounting and tensioner bolts to the manufacturer's specified torque.\u003c\/li\u003e\n    \u003cli\u003eReconnect the battery, start the engine, and verify the belt runs smoothly without squealing or wobbling.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I know if this belt is correct for my engine?\u003c\/summary\u003e\n    \u003cp\u003eThis belt fits MerCruiser 120 HP, 140 HP, 2.5L, and 3.0L 4-cylinder engines from 1974–2008 for power steering applications. To guarantee fitment, please verify your engine model and year against our detailed compatibility table.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this belt for the alternator or power steering pump?\u003c\/summary\u003e\n    \u003cp\u003eThis is the \u003cstrong\u003epower steering belt\u003c\/strong\u003e. Your engine may require a different belt part number for the alternator or raw water pump. Always confirm the specific application before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the signs of a failing V-belt?\u003c\/summary\u003e\n    \u003cp\u003eCommon symptoms include a high-pitched squeal from the engine bay, visible cracks or fraying on the belt's surface, glazing (shiny sides), or a noticeable decrease in power steering assistance, especially at low speeds.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I replace my power steering belt?\u003c\/summary\u003e\n    \u003cp\u003eThere is no strict replacement interval. We recommend inspecting all belts during routine engine service (e.g., every 50-100 hours). Replace the belt immediately if you notice any signs of wear, damage, or stretching to avoid unexpected failure.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the difference between an OEM and an aftermarket part?\u003c\/summary\u003e\n    \u003cp\u003eThis listing is for an aftermarket replacement, not an original equipment manufacturer (OEM) part. It is engineered to meet or exceed OEM-level specifications using comparable materials. Our parts are manufactured in an ISO 9002 certified facility and are batch-inspected to ensure quality and consistency.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow fast is shipping and what does it cost?\u003c\/summary\u003e\n    \u003cp\u003eWe ship worldwide quickly, with typical transit times of 5–15 days for most regions. Standard shipping is free. If available for your location, expedited shipping options and their costs will be presented at checkout.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\n    \u003cp\u003eThis part is covered by a 1-year warranty against manufacturing defects under normal marine use. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard window for items that are unused and in their original condition. See our policy page or reach out for instructions.\u003c\/p\u003e\n  \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\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718265508155,"sku":"23BL229R","price":33.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/23BL229R.png?v=1762958515","url":"https:\/\/seasierra.com\/products\/v-belt-fits-mercruiser-120-140hp-2-5l-3-0l-replaces-57-65607q","provider":"SeaSierra","version":"1.0","type":"link"}