{"product_id":"mercury-mariner-force-outboard-fuel-pump-rebuild-kit-sierra-18-7817-replaces-oem-21-857005a1-21-42990a7","title":"Mercury \/ Mariner \/ Force Outboard Fuel Pump Rebuild Kit – Sierra 18-7817 – Replaces OEM# 21-857005A1, 21-42990A7","description":"\u003cp\u003eRestore reliable fuel delivery to your Mercury, Mariner, or Force 2-stroke outboard with the Sierra 18-7817 fuel pump rebuild kit. It includes the replacement diaphragms, gaskets, and check valve components needed to rebuild a worn or leaking diaphragm fuel pump, built to meet or exceed OEM specs. The diaphragm material is ethanol-resistant.\u003c\/p\u003e\n\u003cp\u003eA tired fuel pump diaphragm can cause hard starting, bogging under load, or the engine dying at higher RPM. Rebuilding the pump is an inexpensive fix that brings fuel pressure back to spec.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReplaces OEM part numbers:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMercury\/Mariner: 21-857005A1, 21-42990A7, 21-42990A8, 21-42990A9, 21-42990A10\u003c\/li\u003e\n\u003cli\u003eChrysler\/Force: 21-857005A1, 21-42990A8, 21-42990A9, 21-42990A10\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCommon applications:\u003c\/strong\u003e Many Mercury\/Mariner 2-stroke 3-cylinder and V6 outboards (including 40, 90, 135–200hp models) and select Force outboards. Fitment varies by serial number; some similar-looking engines (for example, certain early-'90s Force 50hp) use a different kit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is a rebuild kit, not a complete fuel pump. Installation instructions are not included; refer to a service manual for your engine.\u003c\/p\u003e\n\u003cp\u003eFor the correct fitment please send us an email to \u003ca href=\"mailto:orders@hawkeyemarine.net\"\u003eorders@hawkeyemarine.net\u003c\/a\u003e with your engine's model and serial number.\u003c\/p\u003e","brand":"Marysville Marine","offers":[{"title":"Default Title","offer_id":67712284721425,"sku":"18-7817","price":28.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/1307\/2401\/files\/IMG_9473.jpg?v=1791817253","url":"https:\/\/hawkeyemarine.net\/products\/mercury-mariner-force-outboard-fuel-pump-rebuild-kit-sierra-18-7817-replaces-oem-21-857005a1-21-42990a7","provider":"Hawkeye Marine, LLC","version":"1.0","type":"link"}