CUMMINS 3944797 GENUINE OEM CRANKCASE BREATHER WITH OIL FILL HOLE FOR 1989-2002 5.9L CUMMINS

The Cummins 3944797 crankcase breather with oil fill hole is a genuine OEM replacement designed for 1989-2002 Dodge Ram Cummins 5.9L diesel engines. This unit combines crankcase ventilation with an integrated oil fill opening for convenience and proper engine function.

A faulty crankcase breather can lead to excessive crankcase pressure, oil leaks, and poor engine performance. Replacing it with this Cummins factory unit ensures reliable ventilation and a clean way to top off engine oil.

Features & Benefits

• OEM Quality: Genuine Cummins part ensures perfect fitment and durability.
• Integrated Oil Fill: Provides a secure oil fill point directly in the breather housing.
• Proper Ventilation: Maintains crankcase pressure balance and reduces oil carryover.

Fitment

• 1989-1998 Dodge Ram 2500/3500 with 5.9L Cummins 12V
• 1998.5-2002 Dodge Ram 2500/3500 with 5.9L Cummins 24V

Cross Reference Part Numbers

• Cummins 3944797

Frequently Asked Questions

What does the crankcase breather do?

It vents excess pressure from the crankcase, preventing leaks and maintaining proper engine performance.

Does this part include the oil fill hole?

Yes. This version of the crankcase breather comes with a built-in oil fill opening for convenient service.

Is this a genuine Cummins part?

Yes, this is a genuine OEM Cummins crankcase breather designed for long service life.

Tags

cummins 3944797, crankcase breather cummins, 5.9 cummins breather, cummins oil fill breather, dodge ram crankcase breather, cummins 12v crankcase breather, cummins 24v crankcase breather, cpp diesel breather

Fitment

• 1989 Dodge Ram 2500/3500 5.9L Cummins
• 1990 Dodge Ram 2500/3500 5.9L Cummins
• 1991 Dodge Ram 2500/3500 5.9L Cummins
• 1992 Dodge Ram 2500/3500 5.9L Cummins
• 1993 Dodge Ram 2500/3500 5.9L Cummins
• 1994 Dodge Ram 2500/3500 5.9L Cummins
• 1995 Dodge Ram 2500/3500 5.9L Cummins
• 1996 Dodge Ram 2500/3500 5.9L Cummins
• 1997 Dodge Ram 2500/3500 5.9L Cummins
• 1998 Dodge Ram 2500/3500 5.9L Cummins
• 1999 Dodge Ram 2500/3500 5.9L Cummins
• 2000 Dodge Ram 2500/3500 5.9L Cummins
• 2001 Dodge Ram 2500/3500 5.9L Cummins
• 2002 Dodge Ram 2500/3500 5.9L Cummins

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