CUMMINS 4955522 OEM LOWER ENGINE GASKET SET – ISB 6.7L (2011–2012)

Product Description

The Cummins 4955522 OEM Lower Engine Gasket Set is the exact lower-end sealing kit used on 2011–2012 ISB 6.7L Cummins engines. This complete lower engine gasket package includes the critical seals and gaskets needed for oil pan service, front and rear crankshaft seal replacement, timing cover resealing, and other lower-end leak repairs. As a genuine Cummins kit, every component is manufactured to OE tolerances for long-term durability, oil containment, and proper engine operation.

Designed specifically for ISB 6.7L engines equipped in 2011–2012 Ram trucks, this kit is an essential component when overhauling the bottom end, sealing persistent oil leaks, or completing major service work where the factory gaskets must not be reused. Genuine Cummins gasket sets deliver superior fitment, material quality, and heat resistance compared to aftermarket alternatives.

Fitment

• 2011–2012 Ram 2500 with 6.7L ISB Cummins
• 2011–2012 Ram 3500 with 6.7L ISB Cummins
• 2011–2012 ISB 6.7L Cummins (ESN verification recommended for cab & chassis or non-automotive variants)

Typical Components Included

• Oil Pan Gasket
• Front Crankshaft Seal
• Rear Main Seal
• Lower Timing Cover Gasket(s)
• Oil Pump Pickup / Support Gaskets (where applicable)
• Oil Galley / Block Seals
• Additional lower-end sealing components required for ISB 6.7L

Note: Exact contents may vary by ESN. Always verify against Cummins QuickServe listings for your engine.

Cross-Reference (Cummins-Only)

Related Cummins sealing and service components:
• Cummins 3915787 Threaded Plug – Oil Pressure Relief
• Cummins 3900267 Tappet Cover Bolt Grommet Seal
• Cummins 3900625 Hex Flange Head Cap Screw

FAQ

What does the Cummins 4955522 lower engine gasket set include?

It includes the primary lower-end seals such as the oil pan gasket, front and rear main seals, timing cover gaskets, and other OEM lower engine sealing components for the 2011–2012 ISB 6.7L.

Is this gasket set compatible with 2007.5–2010 or 2013+ 6.7L Cummins engines?

No. This kit is application-specific to the 2011–2012 ISB 6.7L. Use your ESN for exact compatibility.

Should I replace the rear main seal while using this gasket set?

Yes — the rear main seal is typically included, and replacing it during lower-end service prevents future leaks and labor overlap.

Does this gasket set fit cab & chassis 6.7L models?

Many do, but ESN verification is required because some cab & chassis configurations use alternate housings or seals.

Are Cummins gaskets better than aftermarket alternatives?

Yes. Cummins gaskets use OEM materials with precise thickness and sealing properties, ensuring superior fitment and reliability, especially under heavy-duty thermal cycling.

Specifications for cummins 4955522