{"product_id":"yranzo-sea-water-pump-for-volvo-penta-4-3-5-0-5-7-crankshaft-mounted-replacement-with-serpentine-pulley","title":"YRANZO Sea Water Pump for Volvo Penta 4.3\/5.0\/5.7 Crankshaft-Mounted Replacement with Serpentine Pulley","description":"\u003cp\u003e\u003cstrong\u003eYRANZO sea water pump is a crankshaft-mounted replacement designed to fit Volvo Penta 4.3L, 5.0L and 5.7L marine engines, swapping in for part numbers 21212799 and 3812519.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement raw water pump is built to restore seawater cooling circulation on compatible Volvo Penta gasoline engines. The assembly includes the pump housing and a serpentine-belt pulley, matching the crankshaft-mounted layout used on many V6 and V8 marine powerheads. It’s sold as a direct-replacement component that helps return your boat to reliable cooling performance when the original pump shows wear, leaks, or reduced flow.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this pump match my Volvo Penta engine?\u003c\/h3\u003e\n\u003cp\u003eThe YRANZO pump is manufactured to fit the crankshaft-mounted raw water design used on several Volvo Penta gasoline engines. It is intended as a direct swap for the common service part numbers listed by OEMs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Volvo Penta 4.3L, 5.0L and 5.7L gasoline engines (V6 and V8 layouts).\u003c\/li\u003e\n  \u003cli\u003eReplaces OEM part numbers 21212799 and 3812519 for like-for-like fit.\u003c\/li\u003e\n  \u003cli\u003eIncludes the serpentine belt pulley configured for crankshaft mounting.\u003c\/li\u003e\n  \u003cli\u003eCheck your original part number and pump orientation before ordering to ensure correct match.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the package and what should I expect?\u003c\/h3\u003e\n\u003cp\u003eThe product ships as a single raw water pump assembly with pulley, ready to be installed by a mechanic. No installation manual is included, so be prepared to follow service documentation or professional guidance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOne raw water pump with serpentine belt pulley as pictured.\u003c\/li\u003e\n  \u003cli\u003ePackaging geared for aftermarket replacement, not a full gasket or hose kit.\u003c\/li\u003e\n  \u003cli\u003eNo installation instructions; professional installation recommended for correct sealing and alignment.\u003c\/li\u003e\n  \u003cli\u003eInspect inlet\/outlet ports and pulley alignment prior to installation to prevent leaks or belt issues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I know when to replace the sea water pump?\u003c\/h3\u003e\n\u003cp\u003eSigns of a failing raw water pump include reduced cooling flow, visible leaks, noisy operation, or a worn impeller (if applicable). Regular seasonal inspection prevents overheating-related damage to the engine cooling circuit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReduced or no coolant flow at the exhaust indicates impaired pumping.\u003c\/li\u003e\n  \u003cli\u003eVisible saltwater leakage at the pump housing or shaft seal suggests replacement is needed.\u003c\/li\u003e\n  \u003cli\u003eUnusual vibration or squeal from the pulley area can mean bearing wear or misalignment.\u003c\/li\u003e\n  \u003cli\u003eFollow engine-maker recommended inspection intervals, especially before launch season.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Boaters, marine mechanics and service shops looking for a reliable aftermarket raw water pump replacement for Volvo Penta 4.3, 5.0 and 5.7 gasoline engines. This YRANZO unit suits owners who need a crankshaft-mounted pump that replaces OEM part numbers 21212799 and 3812519, and who have access to service instructions or a technician for proper installation. If you need a complete overhaul kit (gaskets, impeller, seals), verify your parts list and consider sourcing additional consumables prior to service.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation note:\u003c\/strong\u003e This pump is provided without an installation manual; professional installation is recommended to ensure correct shaft alignment, sealing, and belt tension for dependable operation.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFits: Volvo Penta 4.3L, 5.0L, 5.7L raw water engines.\u003c\/li\u003e\n  \u003cli\u003eReplaces Part Numbers: 21212799, 3812519.\u003c\/li\u003e\n  \u003cli\u003ePackage includes: Raw water pump assembly with serpentine belt pulley.\u003c\/li\u003e\n  \u003cli\u003eInstallation: No instructions included; professional installation recommended.\u003c\/li\u003e\n  \u003cli\u003eTip: Verify your existing part number to confirm compatibility before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this pump fit my Volvo Penta 5.7 V8?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — this YRANZO pump is designed for Volvo Penta 4.3, 5.0 and 5.7 gasoline engines and replaces parts 21212799 and 3812519.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the package include installation instructions?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No, no instructions are included. Professional installation is recommended to ensure proper alignment and sealing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"YRANZO","offers":[{"title":"Default Title","offer_id":48081524457630,"sku":"B08SBYLRLH","price":139.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/yranzo-front-pump-assembly.jpg?v=1785807391","url":"https:\/\/northtrailauto.ca\/products\/yranzo-sea-water-pump-for-volvo-penta-4-3-5-0-5-7-crankshaft-mounted-replacement-with-serpentine-pulley","provider":"North Trail Auto","version":"1.0","type":"link"}