CUMMINS 3914385 GENUINE TIMING GEAR HOUSING COVER GASKET FOR 1989-1993 5.9L CUMMINS

The Cummins 3914385 engine timing gear housing cover gasket is a factory OEM replacement designed for 1989-1993 Dodge Ram 5.9L Cummins 12-valve engines. This gasket provides a leak-free seal between the gear housing and timing cover, ensuring proper oil containment and long-term engine reliability.

Using a genuine Cummins gasket prevents common oil leaks at the timing cover and avoids issues with aftermarket gaskets that may not hold up under vibration and heat.

Features & Benefits

• OEM Quality: Genuine Cummins part ensures proper fit and sealing.
• Durable Construction: Built to withstand heat, vibration, and oil exposure.
• Leak-Free Performance: Restores proper sealing between gear housing and timing cover.

Fitment

• 1989 Dodge Ram 2500/3500 5.9L Cummins 12V
• 1990 Dodge Ram 2500/3500 5.9L Cummins 12V
• 1991 Dodge Ram 2500/3500 5.9L Cummins 12V
• 1992 Dodge Ram 2500/3500 5.9L Cummins 12V
• 1993 Dodge Ram 2500/3500 5.9L Cummins 12V

Cross Reference Part Numbers

• Cummins 3914385
• Replaces aftermarket equivalents: M-3914385

Frequently Asked Questions

Do I need to replace the gasket when removing the timing cover?

Yes. Once compressed, gaskets should never be reused. Always replace with a new OEM gasket.

What symptoms indicate a bad timing gear housing gasket?

Oil leaks around the front of the engine, oil seepage at the cover, or contamination in the gear housing area.

Does this fit later Cummins engines?

No. This gasket is specific to 1989-1993 12-valve Cummins. Later engines use different housings and gaskets.

Maintenance Note

Pro Tip: When replacing the timing cover gasket, inspect your timing gear housing, camshaft bushing, and front crankshaft seal for wear.

Related Categories

• 1989-1993 Cummins Gaskets & Seals
• Cylinder Head Gaskets
• Timing Gear Case & Covers
• Oil Pans & Components
• Harmonic Balancers & Dampers
• All Dodge Cummins Categories

Tags

cummins 3914385, cummins timing gear housing gasket, 5.9 cummins timing cover gasket, dodge ram timing gear cover gasket, cummins timing case gasket, 12v cummins gasket, cummins gear housing cover seal

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

CPP Diesel - Your #1 Source for Cummins OEM & Performance Parts.