CUMMINS 3804899 OEM FRONT CRANKSHAFT SEAL – RAM 5.9L/6.7L (2003–2018)

Product Description

The CUMMINS 3804899 OEM Front Crankshaft Seal delivers factory-correct sealing performance for 2003–2018 Ram 5.9L and 6.7L Cummins engines. Designed to prevent oil leaks at the crankshaft and maintain proper crankcase pressure, this genuine Cummins component ensures long service life, quiet operation, and OEM reliability.

FITMENT

• 2003–2007 Dodge Ram 2500/3500 5.9L Cummins
• 2007.5–2018 Dodge Ram 2500/3500 6.7L Cummins
• Direct OE replacement for Cummins part number 3804899

CROSS-REFERENCE / ALTERNATIVE CUMMINS PARTS

• Cummins 3937111 Rear Crankshaft Seal Kit
• Cummins 3939585 Front Cover Gasket
• Cummins 4890832 Updated Front Crankshaft Seal (Certain 6.7L Engines)

FEATURES

• Genuine OEM Cummins component
• High-temperature and oil-resistant elastomer
• Engineered for precise crankshaft sealing
• Prevents leaks and pressure imbalance
• Compatible with factory front cover and crankshaft alignment tools

FAQ

Does this seal fit both 5.9L and 6.7L Cummins engines?
Yes. This OEM Cummins seal fits all 2003–2007.5 5.9L engines and all 2007.5–2018 6.7L engines.

Do I need special tools to install the crank seal?
Cummins recommends an installation tool to ensure proper depth and alignment. Incorrect installation may cause premature failure.

Should I replace the wear sleeve during installation?
Some engines will require a wear sleeve depending on crank condition. Inspect the crank snout for scoring.

What symptoms indicate a failing front crankshaft seal?
Oil drip near the harmonic balancer, oil slung around the engine bay, or a burning-oil smell may indicate seal failure.

Is this seal different from aftermarket versions?
Yes. Cummins OEM elastomer and tolerance specs provide superior sealing durability compared to many aftermarket alternatives.

Specifications for cummins 3804899