Product Description
Genuine Cummins
Cummins 3914385 — Timing Gear Housing Cover Gasket (Front/Timing Cover)
MPN: 3914385 | Also Known As: timing cover gasket, gear cover gasket | Platform: 5.9L 12-Valve (First-Gen)
Why This Part
- ✓ OE gasket that seals the timing/gear cover to the front gear housing.
- ✓ Direct-fit for 1989–1993 Dodge Ram 5.9L 12V (verify by VIN/ESN).
- ✓ Helps prevent oil leaks at the timing cover interface.
- ✓ Genuine Cummins material and cut for proper compression and longevity.
OE Fit Stock Replacement 1 Per Engine
Quick Specs
| Type | Timing gear housing cover gasket (front/timing cover gasket) |
|---|---|
| OE Part # | 3914385 |
| Qty Required | 1 per engine (sold individually) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1989–1993 | 5.9L Cummins 12-Valve (6BT) | Dodge Ram 2500/3500 |
Industrial/Off-Highway: Also used on many B-series 4BT/6BT applications — always confirm by ESN.
Often Paired With
- Front Timing Cover w/ Seal: Cummins 3287076 (’89–’93)
- Front Crankshaft Seal Kit: Cummins 3802820 (w/ wear sleeve) or 3937111 (seal kit)
- Sealants & hardware as required by service manual
What’s In The Box
- (1) Genuine Cummins Timing Gear Housing Cover Gasket (3914385)
- Cover, seal(s), and hardware sold separately (see “Often Paired With”).
Install Tips
- Clean mating surfaces thoroughly; do not reuse compressed gaskets.
- Follow OE torque pattern; verify KDP (killer dowel pin) status while you’re in there.
- After reassembly, inspect for leaks after the first heat cycle.
FAQ
WILL THIS FIT MY 1989–1993 5.9L 12-VALVE CUMMINS RAM?Yes—this is the OE timing/gear cover gasket for first-gen 5.9L 12V (verify by VIN/ESN).
IS THIS THE GASKET BETWEEN THE FRONT COVER AND THE GEAR HOUSING?Correct—this seals the timing/gear cover to the front gear housing to prevent oil leaks.
WHAT RELATED PARTS SHOULD I REPLACE WHILE I’M THERE?Commonly replaced items include the front crank seal (3937111 or 3802820) and, if damaged, the timing cover assembly (3287076).
IS THIS A GENUINE CUMMINS GASKET?Yes—OE Cummins 3914385 with factory material and cut.
DOES THIS FIT LATER 24-VALVE OR COMMON-RAIL ENGINES?No—this listing targets 1989–1993 12-valve engines. Later engines use different gaskets/housings.
Product Videos
Custom Field
Vehicle Year 1989,1990,1991,1992,1993
Vehicle Make DODGE
ENGINE 5.9L CUMMINS
Part Type Front Cover Gasket
