{"product_id":"16-866563-16-818834-gimbal-housing-stud-4-25-for-mercruiser-alpha-gen-ii-bravo-i-ii-iii-jlm-marine","title":"16-866563 16-818834 Gimbal Housing Stud 4.25\" for Mercruiser Alpha Gen II Bravo I II III | JLM Marine","description":"\u003ch2\u003eGimbal Housing Stud 4.25\" – Fits Mercruiser Alpha Gen II, Bravo I, II, III\u003c\/h2\u003e\n\n\u003cp\u003eThis \u003cstrong\u003eGimbal Housing Stud Kit\u003c\/strong\u003e is designed for Mercruiser stern drive applications, including \u003cstrong\u003eAlpha Gen II\u003c\/strong\u003e and \u003cstrong\u003eBravo I, II, and III\u003c\/strong\u003e series. Each stud measures \u003cstrong\u003e4.25 inches\u003c\/strong\u003e and is engineered to secure the gimbal housing assembly reliably during operation.\u003c\/p\u003e\n\n\u003cp\u003eThis kit serves as a direct replacement for OEM part numbers \u003cstrong\u003e16-866563\u003c\/strong\u003e, \u003cstrong\u003e16-818834\u003c\/strong\u003e, \u003cstrong\u003e818834\u003c\/strong\u003e, and \u003cstrong\u003e866563\u003c\/strong\u003e, ensuring seamless fitment and durability for your stern drive system.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eComplete stud kit for gimbal housing replacement\u003c\/li\u003e\n  \u003cli\u003eCompatible with Alpha Gen II and Bravo I, II, III stern drives\u003c\/li\u003e\n  \u003cli\u003ePrecision-engineered to OEM specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse; width:100%;\"\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\u003eMercruiser\u003c\/td\u003e\n      \u003ctd\u003e16-866563\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercruiser\u003c\/td\u003e\n      \u003ctd\u003e16-818834\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercruiser\u003c\/td\u003e\n      \u003ctd\u003e818834\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercruiser\u003c\/td\u003e\n      \u003ctd\u003e866563\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\n\u003cp\u003eConfirm your engine model\/year in the table below. For Mercury owners, here's a guide to help you identify your engine's serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/mercury-outboard-serial-number-guide\" rel=\"nofollow noopener\" target=\"_blank\"\u003eMercury Serial Number Guide\u003c\/a\u003e. You can also review exploded diagrams to verify part numbers: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/diagrams\/mercury-parts-catalog\" rel=\"nofollow noopener\" target=\"_blank\"\u003eMercury Parts Diagrams \u0026amp; Catalog\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse; width:100%;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eBrand\u003c\/th\u003e\n      \u003cth\u003eModel\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\u003eAlpha Gen II\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercruiser\u003c\/td\u003e\n      \u003ctd\u003eBravo I\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercruiser\u003c\/td\u003e\n      \u003ctd\u003eBravo II\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercruiser\u003c\/td\u003e\n      \u003ctd\u003eBravo III\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse; width:100%;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eValue\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eStud Length\u003c\/td\u003e\n      \u003ctd\u003e4.25 inches\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eApplication\u003c\/td\u003e\n      \u003ctd\u003eGimbal Housing Assembly\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCompatible Series\u003c\/td\u003e\n      \u003ctd\u003eAlpha Gen II, Bravo I, II, III\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\n\u003cp\u003eThis kit includes:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e1× Gimbal Housing Studs Kit\u003c\/strong\u003e\u003c\/span\u003e (The package contains all the parts shown in the picture.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and ensure the stern drive is safely supported before beginning work.\u003c\/li\u003e\n  \u003cli\u003eRemove the stern drive unit from the transom assembly following your service manual procedures.\u003c\/li\u003e\n  \u003cli\u003eLocate the existing gimbal housing studs on the transom plate or gimbal housing.\u003c\/li\u003e\n  \u003cli\u003eCarefully remove the old studs using the appropriate removal tool or stud extractor. Inspect the threads in the housing for damage.\u003c\/li\u003e\n  \u003cli\u003eClean the threaded holes thoroughly with a wire brush and solvent to remove debris, corrosion, or old thread-locking compound.\u003c\/li\u003e\n  \u003cli\u003eApply a marine-grade thread-locking compound to the threads of the new studs to prevent loosening under vibration.\u003c\/li\u003e\n  \u003cli\u003eThread each new stud by hand into the gimbal housing until finger-tight, ensuring proper alignment.\u003c\/li\u003e\n  \u003cli\u003eTorque the studs to the manufacturer's specified torque setting using a calibrated torque wrench.\u003c\/li\u003e\n  \u003cli\u003eReinstall the stern drive unit, ensuring all mounting hardware is properly aligned with the new studs.\u003c\/li\u003e\n  \u003cli\u003eTighten all mounting nuts evenly in a cross-pattern to the correct torque specification.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery and perform a visual inspection to confirm all fasteners are secure.\u003c\/li\u003e\n  \u003cli\u003eConduct a test run to verify proper installation and operation of the stern drive system.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this fits my stern drive?\u003c\/strong\u003e\u003cbr\u003e\nA: Verify that your Mercruiser stern drive is an Alpha Gen II, Bravo I, Bravo II, or Bravo III model. Cross-reference the OEM part numbers (16-866563, 16-818834, 818834, 866563) with your service manual or the existing studs.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the signs that gimbal housing studs need replacement?\u003c\/strong\u003e\u003cbr\u003e\nA: Common indicators include visible corrosion or rust on the studs, stripped or damaged threads, difficulty removing or tightening mounting nuts, or excessive play in the stern drive mounting.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I reuse old studs if they look okay?\u003c\/strong\u003e\u003cbr\u003e\nA: It's not recommended. Gimbal housing studs experience high stress and vibration, and even minor thread wear can compromise the integrity of the stern drive mounting.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Should I use thread locker on these studs?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, apply a marine-grade medium-strength thread-locking compound to prevent the studs from loosening due to vibration and thermal cycling.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: OEM vs. Aftermarket?\u003c\/strong\u003e\u003cbr\u003e\nA: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How fast do you ship and how much does it cost?\u003c\/strong\u003e\u003cbr\u003e\nA: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is your warranty and return policy?\u003c\/strong\u003e\u003cbr\u003e\nA: This product includes a 1-year warranty against manufacturing defects under normal use.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eVerify that the product images and specifications match your original part.\u003c\/li\u003e\n  \u003cli\u003eThis product is an aftermarket replacement part and is not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended to ensure safety and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuality Assured:\u003c\/strong\u003e As a trusted manufacturer for over 20 years, we supply top marine brands globally.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Shipping:\u003c\/strong\u003e Free delivery worldwide in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect from Manufacturer:\u003c\/strong\u003e Competitive pricing without compromising quality.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":51981037437241,"sku":"24SK162","price":75.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/12_28145307-20bf-472a-b2e6-5f6b5c24f795.jpg?v=1772414865","url":"https:\/\/jlmmarine.com\/ru\/products\/16-866563-16-818834-gimbal-housing-stud-4-25-for-mercruiser-alpha-gen-ii-bravo-i-ii-iii-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}