{"product_id":"860246a15-860246q11-51230-exhaust-manifold-for-mercruiser-gm-v8-305-350","title":"860246A15 860246Q11 51230 Exhaust Manifold for MerCruiser GM V8 305 350","description":"\u003cstrong\u003eThis Exhaust Manifold is a replacement exhaust manifold compatible with MerCruiser GM V8 305 and 350 engines and matches OEM Part# 860246A15, 860246Q11, and 51230.\u003c\/strong\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThis exhaust manifold is a direct-fit replacement for MerCruiser GM V8 305 and 350 marine engines. It channels exhaust gases away from the engine cylinders to the exhaust system, ensuring efficient engine performance and reduced backpressure. Designed for boat owners and marine mechanics, this manifold restores factory function and durability.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCast iron construction for heat resistance and long service life\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on design for easy installation with no modifications required\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant coating helps withstand marine environments\u003c\/li\u003e\n\u003cli\u003ePrecision-machined mounting surfaces ensure a leak-free seal\u003c\/li\u003e\n\u003cli\u003eCompatible with both fresh and saltwater cooling systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser GM V8 305 (5.0L) engines\u003c\/li\u003e\n\u003cli\u003eMerCruiser GM V8 350 (5.7L) engines\u003c\/li\u003e\n\u003cli\u003eReplaces OEM part numbers 860246A15, 860246Q11, and 51230\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReplacing a cracked or corroded exhaust manifold on MerCruiser sterndrive engines\u003c\/li\u003e\n\u003cli\u003eRestoring exhaust flow on marine V8 outdrive systems\u003c\/li\u003e\n\u003cli\u003eRebuilding older MerCruiser engine blocks during overhaul\u003c\/li\u003e\n\u003cli\u003eUpgrading to a direct-fit OEM-style replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Cast iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number(s):\u003c\/strong\u003e 860246A15, 860246Q11, 51230\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e MerCruiser GM V8 305 (5.0L) and 350 (5.7L)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this exhaust manifold a direct replacement for my MerCruiser 350?\u003cstrong\u003e A:\u003c\/strong\u003e Yes, it is designed to directly replace the factory manifold on MerCruiser GM V8 350 engines using the listed OEM part numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this manifold include gaskets or hardware?\u003cstrong\u003e A:\u003c\/strong\u003e This listing is for the manifold only; gaskets and mounting hardware are typically sold separately.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eProduct appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"DURAFORCE","offers":[{"title":"Default Title","offer_id":53676851888401,"sku":"ZZ2Y02433","price":1121.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/2446\/2929\/files\/57_5c278996-de88-43e1-9783-375025d0eea0.jpg?v=1781579491","url":"https:\/\/www.duraforce.com\/products\/860246a15-860246q11-51230-exhaust-manifold-for-mercruiser-gm-v8-305-350","provider":"DURAFORCE","version":"1.0","type":"link"}