{"product_id":"876377-head-decarbonizing-gasket-set-for-volvo-penta-md1b-md2b-md3b-aqd2b-d1-d2-d3-jlm-marine","title":"876377 Head Decarbonizing Gasket Set for Volvo Penta MD1B MD2B MD3B AQD2B D1 D2 D3 | JLM Marine","description":"\u003ch2\u003eHead Decarbonizing Gasket Set – Fits Volvo Penta MD1B, MD2B, MD3B, AQD2B, D1, D2, D3 Diesel Engines\u003c\/h2\u003e\n\n\u003cp\u003eThis \u003cstrong\u003eHead Decarbonizing Gasket Set\u003c\/strong\u003e is designed for Volvo Penta diesel engine models including \u003cstrong\u003eMD1B, MD2B, MD3B, AQD2B, D1, D2, and D3\u003c\/strong\u003e. Engineered to restore compression and seal integrity during decarbonization service, this gasket set ensures reliable performance and proper cylinder head sealing.\u003c\/p\u003e\n\n\u003cp\u003eThis aftermarket replacement directly replaces Volvo Penta OEM part numbers \u003cstrong\u003e876377, 876375, 876374, 875504, 875502, and 875500\u003c\/strong\u003e, providing a cost-effective solution for routine maintenance and overhaul procedures.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eEssential component for cylinder head decarbonization service\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for Volvo Penta marine diesel engines\u003c\/li\u003e\n\u003cli\u003eMultiple kits may be required depending on engine model\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\"\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\u003e876377\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e876375\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e876374\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e875504\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e875502\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e875500\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.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\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\u003eMD1B\u003c\/td\u003e\n\u003ctd\u003e1 Kit Required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eAQD2B\u003c\/td\u003e\n\u003ctd\u003e2 Kits Required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eMD2B\u003c\/td\u003e\n\u003ctd\u003e2 Kits Required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eMD3B\u003c\/td\u003e\n\u003ctd\u003e3 Kits Required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eD1\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\u003eD2\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\u003eD3\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\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\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\u003eOEM Part Number\u003c\/td\u003e\n\u003ctd\u003e876377\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCylinder Head Decarbonization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Type\u003c\/td\u003e\n\u003ctd\u003eDiesel\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\u003eEach package contains the following components:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e1 × Head Decarbonizing Gasket Set\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Depending on your engine model, \u003cspan style=\"color:red;\"\u003emultiple kits may be required\u003c\/span\u003e. Refer to the compatibility table above to determine the quantity needed for your specific engine.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Ensure the engine is cool and disconnect the battery. Drain coolant and remove any components obstructing access to the cylinder head.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove Cylinder Head:\u003c\/strong\u003e Unbolt and carefully lift the cylinder head from the engine block, noting the position of all fasteners and components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean Surfaces:\u003c\/strong\u003e Thoroughly clean all carbon deposits from the cylinder head, piston tops, and valves using appropriate decarbonizing tools and solvents. Ensure all mating surfaces are completely clean and free of old gasket material.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInspect Components:\u003c\/strong\u003e Check the cylinder head for warping or cracks and inspect valves, seats, and guides for wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall New Gasket:\u003c\/strong\u003e Position the new head gasket from this decarbonizing set onto the engine block, aligning all bolt holes and passages correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinstall Cylinder Head:\u003c\/strong\u003e Carefully lower the cylinder head onto the new gasket, ensuring proper alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorque Head Bolts:\u003c\/strong\u003e Tighten cylinder head bolts in the proper sequence and to the manufacturer's specified torque values, typically in multiple stages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReassemble Components:\u003c\/strong\u003e Reinstall all removed components including manifolds, fuel lines, and cooling system connections using new gaskets from the set as applicable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefill Fluids:\u003c\/strong\u003e Refill the cooling system with fresh coolant and check all fluid levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest for Leaks:\u003c\/strong\u003e Reconnect the battery and start the engine. Monitor for any coolant, oil, or compression leaks around the cylinder head.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinal Checks:\u003c\/strong\u003e Allow the engine to reach operating temperature and recheck all connections and torque specifications after the initial heat cycle.\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 know how many kits I need for my engine?\u003c\/strong\u003e\u003cbr\u003e\nA: The number of kits required depends on your specific engine model. MD1B requires 1 kit, AQD2B and MD2B require 2 kits, and MD3B requires 3 kits. Always refer to the compatibility table above to confirm the correct quantity for your engine.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I reuse the old gaskets during decarbonization?\u003c\/strong\u003e\u003cbr\u003e\nA: No, gaskets are single-use components. Always replace gaskets with new ones from this set to ensure proper sealing and prevent leaks or compression loss.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I perform decarbonization service on my Volvo Penta diesel?\u003c\/strong\u003e\u003cbr\u003e\nA: Decarbonization intervals vary based on operating conditions, fuel quality, and engine load. Consult your engine manual for recommended service intervals, typically every 500-1000 operating hours or when you notice performance degradation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are signs that my engine needs decarbonization?\u003c\/strong\u003e\u003cbr\u003e\nA: Common symptoms include loss of power, excessive smoke, rough idle, increased fuel consumption, or difficulty starting. Carbon buildup can also cause valve problems and reduced compression.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this an OEM part or 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. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.\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. Expedited options are available at checkout depending on your location.\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. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused \u0026amp; in original condition); please see our policy page or reach out for instructions.\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. If discrepancies exist—even if your model is listed—do not proceed with the purchase.\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":51980999819577,"sku":"23GK326","price":55.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/6669330297.jpg?v=1772414128","url":"https:\/\/jlmmarine.com\/products\/876377-head-decarbonizing-gasket-set-for-volvo-penta-md1b-md2b-md3b-aqd2b-d1-d2-d3-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}