Product Description
Cummins 4934041 — Timing Gear Case Housing (Front Gearcase) for ISB 6.7L
MPN: 4934041 | Also Known As: gear housing, timing gear case housing, front gearcase
Why This Part
- ✓ OE casting & machining for proper alignment of cam/crank/idler gears.
- ✓ Direct-fit for 2007.5–2018 Ram 6.7L ISB (verify by VIN/ESN).
- ✓ Restores correct sealing & oil control at the front gear train.
- ✓ Built to Cummins specs for durability and long service life.
Quick Specs
| Type | Timing gear case housing (front gearcase) |
|---|---|
| OE Part # | 4934041 |
| Qty Required | 1 per engine (sold individually) |
| Notes | Used primarily on EPA13+ 6.7L ISB/QSB platforms; confirm by VIN/ESN for late years. |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 2007.5–2018 | Ram 6.7L ISB (24V Common-Rail) | Ram 2500/3500 |
Industrial/Off-Highway: Common on EPA13+ ISB/QSB 6.7 applications—confirm by ESN. Some retailers list early coverage as tight as ’07.5–’09 based on build date; verify before ordering.
Often Paired With
- Gear housing-to-block gasket: Cummins 6375772 (updated design)
- Front crankshaft seal: Cummins 4931561 (6.7L)
- Timing cover (front cover) gasket: Mopar 68700302AA or equivalent
- RTV/sealant where specified; clean & dry sealing surfaces
What’s In The Box
- (1) Genuine Cummins Timing Gear Case Housing (4934041)
- Gaskets/seals sold separately (see “Often Paired With”).
Install Tips
- Thoroughly clean mating surfaces; follow Cummins torque sequence/spec.
- Use alignment dowels/pins; verify accessory & gear alignment.
- Replace associated gaskets/seals; check for leaks on warm-up.
FAQ
WILL THIS FIT MY 2007.5–2018 6.7L CUMMINS RAM?Yes—this is the OE front gearcase for most 2007.5–2018 Ram 6.7L ISB applications (confirm by VIN/ESN).
IS THIS THE “GEAR HOUSING” / “TIMING GEAR CASE” ON THE FRONT OF THE ENGINE?Correct—this housing supports and seals the front gear train (cam/crank/idler) and interfaces with the timing cover.
WHAT GASKETS/SEALS SHOULD I REPLACE WHEN DOING THIS?At minimum: gear housing-to-block gasket (Cummins 6375772), front crankshaft seal (4931561), and the timing cover gasket. Clean surfaces and use sealant where the service manual specifies.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 4934041 with factory machining and sealing interfaces.
DOES THIS FIT 5.9L TRUCKS?Generally no—5.9L engines use different gear housing part numbers. Always verify by VIN/ESN if components have been swapped.
