{"product_id":"power-steering-pump-pulley-fits-volvo-penta-3-0l-7-4l-omc-stern-drives-replaces-3853804-983839-983734-909981","title":"Power Steering Pump Pulley – Fits Volvo Penta 3.0L-7.4L \u0026 OMC Stern Drives (Replaces 3853804, 983839, 983734, 909981)","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket Power Steering Pump Pulley is designed for a wide range of Volvo Penta and OMC Stern Drive engines. It fits various V6 and V8 models, including Volvo Penta's 3.0L to 7.4L SX-M series (1990–2017) and OMC's 3.0L to 7.4L Cobra models (1986–1998), ensuring reliable performance for your power steering system.\u003c\/p\u003e\n\u003cp\u003eThis component serves as a direct interchange for Volvo Penta part 3853804; OMC\/Johnson\/Evinrude parts 983839, 983734, and 909981; Sierra part 18-8964\/188964; and JLM Marine part AM3853804.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngineered for direct OEM replacement installation.\u003c\/li\u003e\n\u003cli\u003eConstructed from a high-strength, corrosion-resistant metal alloy.\u003c\/li\u003e\n\u003cli\u003eCovered by a 1-year warranty against manufacturing defects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\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\u003csection\u003e\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\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3853804\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\/Johnson\/Evinrude\u003c\/td\u003e\n        \u003ctd\u003e983839\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\/Johnson\/Evinrude\u003c\/td\u003e\n        \u003ctd\u003e983734\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\/Johnson\/Evinrude\u003c\/td\u003e\n        \u003ctd\u003e909981\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-8964\/188964\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eJLM Marine\u003c\/td\u003e\n        \u003ctd\u003eAM3853804\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\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\u003eFits various Volvo Penta SX-M series sterndrive engines from 1990 to 2017.\u003c\/p\u003e\n\u003cp\u003eCompatible with OMC Cobra Sterndrive models from 1986 to 1998.\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\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3.0L 4-cylinder (SX M series)\u003c\/td\u003e\n        \u003ctd\u003e130-135\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1990–2017\u003c\/td\u003e\n        \u003ctd\u003e3853804\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e4.3L V6 (SX M series)\u003c\/td\u003e\n        \u003ctd\u003e190-225\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1990–2017\u003c\/td\u003e\n        \u003ctd\u003e3853804\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e5.0L V8 (SX M series)\u003c\/td\u003e\n        \u003ctd\u003e220-270\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1990–2017\u003c\/td\u003e\n        \u003ctd\u003e3853804\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e5.7L V8 (SX M series)\u003c\/td\u003e\n        \u003ctd\u003e250-320\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1990–2017\u003c\/td\u003e\n        \u003ctd\u003e3853804\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e5.8L V8 (SX M series)\u003c\/td\u003e\n        \u003ctd\u003e275-310\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1990–2017\u003c\/td\u003e\n        \u003ctd\u003e3853804\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e7.4L V8 (SX M series)\u003c\/td\u003e\n        \u003ctd\u003e310-425\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1990–2017\u003c\/td\u003e\n        \u003ctd\u003e3853804\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n        \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e8.2L V8 (SX M series)\u003c\/td\u003e\n        \u003ctd\u003e380-430\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1990–2017\u003c\/td\u003e\n        \u003ctd\u003e3853804\u003c\/td\u003e\n        \u003ctd\u003ePartial models\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003eCobra Sterndrive 3.0L 4-cylinder\u003c\/td\u003e\n        \u003ctd\u003e135\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1986–1998\u003c\/td\u003e\n        \u003ctd\u003e983839\/983734\/909981\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003eCobra Sterndrive 4.3L V6\u003c\/td\u003e\n        \u003ctd\u003e205-230\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1986–1998\u003c\/td\u003e\n        \u003ctd\u003e983839\/983734\/909981\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003eCobra Sterndrive 5.0L V8\u003c\/td\u003e\n        \u003ctd\u003e235-260\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1986–1998\u003c\/td\u003e\n        \u003ctd\u003e983839\/983734\/909981\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003eCobra Sterndrive 5.7L V8\u003c\/td\u003e\n        \u003ctd\u003e260-300\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1986–1998\u003c\/td\u003e\n        \u003ctd\u003e983839\/983734\/909981\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003eCobra Sterndrive 7.4L V8\u003c\/td\u003e\n        \u003ctd\u003e330-425\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1986–1998\u003c\/td\u003e\n        \u003ctd\u003e983839\/983734\/909981\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003ePower Steering Pump Pulley\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM replacement\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eHigh-strength corrosion-resistant metal alloy\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eV-Belt Pulley\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003ePower Steering Pump Drive\u003c\/dd\u003e\n  \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e1 year against manufacturing defects\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Power Steering Pump Pulley (Replaces 3853804\/983839\/983734\/909981)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery to prevent accidental starting.\u003c\/li\u003e\n  \u003cli\u003eLocate the existing power steering pump pulley on the engine.\u003c\/li\u003e\n  \u003cli\u003eRelease tension from the drive belt using the belt tensioner.\u003c\/li\u003e\n  \u003cli\u003eRemove the belt from the pulley.\u003c\/li\u003e\n  \u003cli\u003eUnbolt the old pulley from the pump shaft using appropriate tools.\u003c\/li\u003e\n  \u003cli\u003eClean the mounting surface on the pump shaft thoroughly.\u003c\/li\u003e\n  \u003cli\u003eAlign the new pulley with the pump shaft keyway.\u003c\/li\u003e\n  \u003cli\u003eSecure the pulley with manufacturer-specified torque settings.\u003c\/li\u003e\n  \u003cli\u003eReroute the drive belt according to the engine's diagram.\u003c\/li\u003e\n  \u003cli\u003eAdjust belt tension to recommended specifications.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery and test steering operation.\u003c\/li\u003e\n  \u003cli\u003eVerify no abnormal noises during system operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if my power steering pump pulley is failing?\u003c\/summary\u003e\u003cp\u003eCommon signs of a failing pulley include squealing or grinding noises from the engine bay, visible wobble or damage to the pulley itself, and increased difficulty in steering. The drive belt may also show signs of uneven wear or fraying.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this pulley fit my specific engine model?\u003c\/summary\u003e\u003cp\u003eThis pulley is designed for the Volvo Penta and OMC models listed in the compatibility table. Always cross-reference your engine model, year, and original part number with the provided tables to ensure a correct fit.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat tools are required for installation?\u003c\/summary\u003e\u003cp\u003eYou will typically need a socket set, wrenches, a belt tensioner tool, and potentially a pulley puller\/installer tool, depending on your specific engine configuration. Refer to your engine's service manual for exact tool requirements.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs any maintenance required after installation?\u003c\/summary\u003e\u003cp\u003ePeriodically inspect the drive belt for proper tension and signs of wear. Keep the pulley clean from grease and debris. No other specific maintenance is required for the pulley itself.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the difference between V-belt and serpentine belt pulleys?\u003c\/summary\u003e\u003cp\u003eThis is a V-belt style pulley, designed for V-shaped belts. Serpentine belt pulleys have multiple small grooves for a flat, ribbed belt. They are not interchangeable. Ensure you are replacing your pulley with the correct type for your belt system.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhy are specific torque specs not included?\u003c\/summary\u003e\u003cp\u003eTorque specifications can vary between different engine models and manufacturers. It is critical to consult your official service manual for the correct torque settings to prevent damage to the pulley or pump.\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\u003c\/section\u003e\n\n\u003csection\u003e\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\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n\u003cli\u003eFast Global Fulfillment — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n\u003cli\u003eManufacturer-Direct Value — 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":50718268490043,"sku":"21TP004","price":45.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/3853804MarinePulley_a191f8a6-6532-45f4-970b-2823f2161bc1.jpg?v=1762958633","url":"https:\/\/seasierra.com\/products\/power-steering-pump-pulley-fits-volvo-penta-3-0l-7-4l-omc-stern-drives-replaces-3853804-983839-983734-909981","provider":"SeaSierra","version":"1.0","type":"link"}