Product Description
Genuine Cummins
Cummins 3912895 — VE Injection Pump Lock Washer
MPN: 3912895 | Also Known As: injection pump lock washer, VE pump lock washer | Application: Bosch VE rotary pump / fuel pump assemblies
Why This Part
- ✓ OE hardware for Bosch VE rotary injection pump/fuel pump assemblies.
- ✓ Direct-fit for 1989–1993 5.9L 12-valve VE trucks; widely used across B/C/ISB/ISC/ISL industrial engines (verify by ESN).
- ✓ Restores factory clamp/load on the fastener to prevent loosening from vibration.
- ✓ Genuine Cummins quality for reliable, repeatable torque retention.
OE Fit Fuel System Hardware Single Piece
Quick Specs
| Type | Lock washer (fuel/injection pump hardware) |
|---|---|
| OE Part # | 3912895 |
| Qty Required | Varies by assembly (sold individually) |
| Notes | Replace if removed; do not reuse if deformed or fatigued |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1989–1993 | Ram 5.9L 12-Valve (Bosch VE Rotary) | D/W-Series 250/350 |
Industrial/Off-Highway: Appears across 4B/6B/6C/ISB/ISC/ISL families and fuel-pump assemblies—verify by ESN prior to ordering.
Often Paired With
- VE Injection Pump Gear: Cummins 4932713 (’89–’93 VE) — check wear and keyway during service
- Related VE hardware & seals (nut, key, front seal) as needed
What’s In The Box
- (1) Genuine Cummins Lock Washer (3912895)
- Other fasteners/seals sold separately
Install Tips
- Clean mating surfaces; torque fastener to factory spec.
- Use new washer on reassembly; inspect for deformation after torque-to-yield events.
- If pump/gear was disturbed, verify timing and belt/gear alignment per service manual.
FAQ
WILL THIS FIT MY 1989–1993 5.9L VE CUMMINS?Yes—this is the OE VE injection pump/fuel-pump lock washer for 1989–1993 5.9L 12-valve applications (verify by VIN/ESN).
IS THIS FOR THE BOSCH VE ROTARY PUMP?Correct. It’s used on VE rotary pump/fuel-pump assemblies.
IS THIS A SINGLE WASHER OR A KIT?Single piece. Order additional hardware/seals as required for your procedure.
CAN I REUSE MY OLD LOCK WASHER?Not recommended. Replace if removed or if any signs of fatigue or deformation are present.
DOES THIS FIT VP44 OR P7100 TRUCKS?Those pumps (1994–1998 P7100, 1998.5–2002 VP44) use different hardware. Verify by ESN and pump type.
