Product Description
Genuine Cummins
Cummins 3939355 — VE Injection Pump to Gear Housing Gasket
MPN: 3939355 | Also Known As: fuel/injection pump mounting gasket, VE pump flange gasket | Quantity: 1 per engine
Why This Part
- ✓ OE sealing between the VE rotary injection pump and the front gear housing.
- ✓ Direct-fit for 1989–1993 5.9L 12-valve (VE pump) first-gen Dodge Ram.
- ✓ Prevents oil/fuel seepage and air intrusion that can cause starting and performance issues.
- ✓ Genuine Cummins gasket material for reliable clamp load and service life.
OE Fit First-Gen Cummins 1 Per Engine
Quick Specs
| Type | Fuel/Injection Pump Mounting Gasket (VE to Gear Housing) |
|---|---|
| OE Part # | 3939355 |
| Material | Composite/fiber gasket (install per Cummins procedure) |
| Qty Required | 1 per engine (sold individually) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1989–1993 | 5.9L 12-Valve Cummins (VE Rotary Injection Pump) | Dodge Ram 2500/3500 (First Gen) |
Industrial/Off-Highway: Also used on 5.9L B/6BT/6B industrial engines with VE pumps—verify by ESN.
Often Paired With
- New copper sealing washers for fuel banjo fittings
- Front gear housing service items if removed (verify by ESN)
- Fresh fuel filter after pump service
What’s In The Box
- (1) Genuine Cummins VE Pump to Gear Housing Gasket (3939355)
- Hardware/sealants sold separately (follow Cummins procedures)
Install Tips
- Clean both mating surfaces thoroughly; avoid gouges.
- Align the VE pump carefully to prevent timing changes.
- Install the gasket dry or as specified by Cummins; avoid excess RTV that could enter the pump.
- Torque fasteners to spec and re-check for seepage after first heat cycle.
FAQ
WILL THIS FIT MY 1989–1993 FIRST-GEN 5.9L CUMMINS?Yes—this is the OE gasket that seals the VE rotary pump to the gear housing on 1989–1993 5.9L 12-valve Dodge Ram.
DO I NEED SEALANT WITH THIS GASKET?Install dry or as directed by the Cummins service manual. Avoid excess RTV—squeeze-out can affect pump alignment or oil passages.
HOW MANY GASKETS ARE REQUIRED?One per engine (single pump-to-housing interface).
IS THIS GENUINE CUMMINS?Yes—OE Cummins 3939355 for correct thickness and material.
DOES THIS FIT P7100 (’94–’98) OR VP44 (’98.5–’02) TRUCKS?No—those pumps use different mounting gaskets. This part is for VE-equipped engines (’89–’93).
Product Videos
Custom Field
Vehicle Year 1989,1990,1991,1992,1993
Vehicle Make DODGE
ENGINE 5.9L
Part Type Injection Pump-Gear Housing Gasket
