{"product_id":"quickmarine-821354a2-water-pump-impeller-repair-kit-for-mercury-marine-25-50-hp-outboards-sierra-18-4531-compatible","title":"QuickMarine 821354A2 Water Pump Impeller Repair Kit for Mercury Marine 25-50 HP Outboards | Sierra 18-4531 Compatible","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003ePrepare for dependable outboard maintenance with the QuickMarine 821354A2 Water Pump Impeller Repair Kit. This aftermarket service kit is aimed at Mercury Marine engines in the 25 to 50 HP range, covering common lower unit gearcase parts and offering a complete rebuild option when wear or routine servicing is needed. Built to be a practical, ready-to-install solution, it helps boaters keep cooling systems in good working order for smoother days on the water.\u003c\/p\u003e\n\u003ch3\u003eWhat’s in the kit\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRubber impeller\u003c\/li\u003e\n  \u003cli\u003eHousing assembly (water pump upper)\u003c\/li\u003e\n  \u003cli\u003eWater tube seal\u003c\/li\u003e\n  \u003cli\u003eWasher\u003c\/li\u003e\n  \u003cli\u003eGasket\u003c\/li\u003e\n  \u003cli\u003eWear plate\u003c\/li\u003e\n  \u003cli\u003eDrive key\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility and compatibility notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Mercury Marine 25-50 HP outboard models\u003c\/li\u003e\n  \u003cli\u003eCompatible with 821354A2, 46-821354A2, and 821354A1 gearcase parts\u003c\/li\u003e\n  \u003cli\u003eReplaces Sierra Marine 18-4531 components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy choose this kit\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAll-in-one service kit designed for straightforward, on-boat maintenance\u003c\/li\u003e\n  \u003cli\u003eAftermarket alternative that aligns with Mercury gearcase parts for easy sourcing\u003c\/li\u003e\n  \u003cli\u003eSold as a backup spare to minimize downtime and simplify seasonal prep\u003c\/li\u003e\n  \u003cli\u003eDurable components chosen to support long-lasting pump operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReal-world use\u003c\/h3\u003e\n\u003cp\u003eWhether you are preparing for the boating season, performing a mid-season service, or replacing a worn impeller, this kit is intended to streamline the process. The included parts ensure you have the essentials ready for a complete rebuild in one kit, supporting reliable engine cooling and smoother installs.\u003c\/p\u003e\n\u003ch3\u003eInstallation tips\u003c\/h3\u003e\n\u003cp\u003eFollow standard safety precautions: disconnect power, drain fluids, and refer to your Mercury service manual for torque specs and sequence. This kit is designed to complement existing maintenance routines and can help reduce last-minute trips to the shop.\u003c\/p\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: Is this kit compatible with Mercury Marine 25-50 HP outboards?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it fits Mercury gearcase models in the 25-50 HP range and matches 46-821354A2 and Sierra 18-4531 replacements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What parts are included and what is the benefit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Includes impeller, housing, water tube seal, washer, gasket, wear plate, and drive key for a complete service option.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"QUICKMARINER","offers":[{"title":"Default Title","offer_id":42470562988117,"sku":"B0DD33KX8J","price":47.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/quickmariner-821354a2-water-pump-impeller-kit.jpg?v=1778135586","url":"https:\/\/plentytorque.co.uk\/products\/quickmarine-821354a2-water-pump-impeller-repair-kit-for-mercury-marine-25-50-hp-outboards-sierra-18-4531-compatible","provider":"PlentyTorque","version":"1.0","type":"link"}