{"product_id":"cummins-genuine-rear-main-seal-with-repair-sleeve-3926126-1989-2018-cummins-5-9l-6-7l","title":"CUMMINS GENUINE REAR MAIN SEAL WITH REPAIR SLEEVE 3926126 | 1989-2018 CUMMINS 5.9L\/6.7L","description":"\u003cp\u003eRepair a leaking rear main seal on your Dodge Ram 5.9L or 6.7L Cummins with the Cummins 3926126 Genuine Rear Main Seal with Repair Sleeve. This genuine Cummins replacement kit is designed to restore proper sealing at the rear of the crankshaft and help prevent engine oil leaks.\u003c\/p\u003e\n\n\u003cp\u003eThe included repair sleeve makes this kit particularly useful for higher-mileage engines where the original crankshaft sealing surface has developed wear or grooves from prolonged contact with the rear main seal. The sleeve provides a renewed sealing surface for the new seal, helping achieve proper contact without requiring crankshaft replacement solely because of sealing-surface wear.\u003c\/p\u003e\n\n\u003cp\u003eThis kit can be used when repairing an existing rear main seal leak or during engine, transmission, or clutch service when rear main seal replacement is necessary.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGenuine Cummins OE replacement components\u003c\/li\u003e\n  \u003cli\u003eRear main crankshaft seal with repair sleeve\u003c\/li\u003e\n  \u003cli\u003eHelps repair rear main seal oil leaks\u003c\/li\u003e\n  \u003cli\u003eRepair sleeve provides a renewed sealing surface on worn crankshafts\u003c\/li\u003e\n  \u003cli\u003eIdeal for higher-mileage engines with crankshaft seal grooves or wear\u003c\/li\u003e\n  \u003cli\u003eDirect-fit replacement\u003c\/li\u003e\n  \u003cli\u003eDesigned for factory-style fit and sealing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eKit Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e(1) Rear Main Seal\u003c\/li\u003e\n  \u003cli\u003e(1) Crankshaft Repair Sleeve\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDodge Ram applications equipped with the 5.9L Cummins diesel engine\u003c\/li\u003e\n  \u003cli\u003eDodge Ram applications equipped with the 6.7L Cummins diesel engine\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cummins","offers":[{"title":"Default Title","offer_id":53950410195227,"sku":"3926126","price":221.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/5757\/3147\/files\/Screenshot2026-09-15at11.04.29AM.png?v=1789668490","url":"https:\/\/wwmperformance.com\/products\/cummins-genuine-rear-main-seal-with-repair-sleeve-3926126-1989-2018-cummins-5-9l-6-7l","provider":"WWM Performance","version":"1.0","type":"link"}