Product Description
Cummins 3912895 OEM VE Injection Pump Lock Washer – Ram 5.9L (1989–1993)
The Cummins 3912895 OEM VE Injection Pump Lock Washer is a genuine Cummins replacement hardware component designed for 1989–1993 Dodge Ram trucks equipped with the 5.9L 12-Valve Cummins engine and Bosch VE rotary injection pump. This factory-correct lock washer helps maintain proper clamping force on the VE injection pump gear assembly, preventing fastener loosening and helping preserve injection timing integrity during engine operation.
When servicing the injection pump gear, replacing worn or fatigued hardware is recommended to ensure proper retention and long-term reliability. The Cummins 3912895 lock washer is designed to meet OEM specifications and is an ideal replacement during VE pump repairs, timing adjustments, gear housing service, or injection pump installation.
Features
- Genuine Cummins OEM replacement part
- Designed for Bosch VE rotary injection pump applications
- Maintains proper clamp load on injection pump gear hardware
- Helps prevent fastener loosening from vibration
- Factory-correct fit and function
- Ideal for injection pump service and timing adjustments
- Direct replacement for worn or damaged lock washers
- Built to Cummins OEM specifications
Fitment
- 1989 Dodge Ram 2500 5.9L Cummins
- 1990 Dodge Ram 2500 5.9L Cummins
- 1991 Dodge Ram 2500 5.9L Cummins
- 1992 Dodge Ram 2500 5.9L Cummins
- 1993 Dodge Ram 2500 5.9L Cummins
- 1989 Dodge Ram 3500 5.9L Cummins
- 1990 Dodge Ram 3500 5.9L Cummins
- 1991 Dodge Ram 3500 5.9L Cummins
- 1992 Dodge Ram 3500 5.9L Cummins
- 1993 Dodge Ram 3500 5.9L Cummins
- Bosch VE rotary injection pump equipped 5.9L 12-Valve Cummins engines
Note: This lock washer is intended for VE rotary injection pump applications only. Verify engine serial number and injection pump configuration before ordering. This part is not intended for P7100 injection pump applications.
What's Included
- One (1) Genuine Cummins 3912895 VE Injection Pump Lock Washer
Specifications
- Manufacturer: Cummins
- Part Number: 3912895
- Component Type: Injection Pump Lock Washer
- Application: Bosch VE Rotary Injection Pump
- Engine Compatibility: 5.9L 12-Valve Cummins
- Model Years: 1989–1993
- Pump Type: Bosch VE Rotary Pump
- Installation Location: VE Pump Gear Hardware Assembly
- Material: OEM Hardened Steel Construction
- OEM Replacement: Yes
- Vehicle Application: Dodge Ram 2500 and 3500
Cross Reference Numbers
3912895, Cummins 3912895, VE Pump Lock Washer, Bosch VE Injection Pump Lock Washer, VE Pump Gear Lock Washer, 12 Valve VE Pump Hardware
FAQ
What does the Cummins 3912895 lock washer do?
The 3912895 lock washer helps maintain proper clamping force on the VE injection pump gear assembly and assists in preventing hardware loosening caused by engine vibration and operating loads.
Can I reuse my original VE injection pump lock washer?
Reusing old lock washers is not recommended. Over time, lock washers can lose tension and become deformed. Installing new OEM hardware helps ensure proper retention and reliability.
Will this fit a P7100 injection pump?
No. The Cummins 3912895 lock washer is designed specifically for Bosch VE rotary injection pump applications found on 1989–1993 5.9L Cummins engines. P7100-equipped engines use different hardware.
When should this lock washer be replaced?
Replacement is recommended whenever the VE injection pump gear assembly is removed, during timing adjustments, injection pump replacement, or whenever existing hardware shows signs of wear or deformation.
Is this a genuine Cummins part?
Yes. Part number 3912895 is a genuine Cummins OEM replacement lock washer manufactured to factory specifications.
