{"product_id":"cummins-genuine-rocker-box-gasket-3963379-2003-2024-5-9l-6-7l-cummins","title":"CUMMINS GENUINE ROCKER BOX GASKET 3963379 | 2003-2024 5.9L\/6.7L CUMMINS","description":"\u003cp\u003eMaintain a proper seal between the rocker box and cylinder head on your 5.9L or 6.7L Cummins with the Cummins 3963379 Genuine Rocker Box Gasket. This genuine OEM replacement gasket installs underneath the rocker box and is designed to help prevent engine oil leaks at the rocker box-to-cylinder head sealing surface.\u003c\/p\u003e\n\n\u003cp\u003eManufactured to Cummins specifications, this gasket provides the correct dimensions and sealing characteristics for a factory-style fit. It is an ideal replacement when removing the rocker box for cylinder head, valvetrain, injector, or other upper-engine service.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGenuine Cummins OEM replacement gasket\u003c\/li\u003e\n  \u003cli\u003eSeals the rocker box to the cylinder head\u003c\/li\u003e\n  \u003cli\u003eHelps prevent engine oil leaks\u003c\/li\u003e\n  \u003cli\u003eDirect-fit replacement\u003c\/li\u003e\n  \u003cli\u003eMaintains factory-style fit and function\u003c\/li\u003e\n  \u003cli\u003eIdeal for rocker box and upper-engine service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e5.9L Cummins diesel applications\u003c\/li\u003e\n  \u003cli\u003e6.7L Cummins diesel applications\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cummins","offers":[{"title":"Default Title","offer_id":53950419763483,"sku":"3963379","price":51.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/5757\/3147\/files\/Screenshot2026-09-15at11.09.00AM.png?v=1789668720","url":"https:\/\/wwmperformance.com\/products\/cummins-genuine-rocker-box-gasket-3963379-2003-2024-5-9l-6-7l-cummins","provider":"WWM Performance","version":"1.0","type":"link"}