Product Description
The BD DIESEL 1040187 P7100 Governor Spring Kit (3000 RPM) is a proven performance upgrade for 1994–1998 Dodge Ram 2500/3500 trucks equipped with the 5.9L 12-Valve Cummins and the Bosch P7100 injection pump. If your P-pump Cummins feels like it “runs out of RPM” or shifts too early under load, this kit raises the governor limit to 3000 RPM to unlock more usable top-end power and throttle response.
This governor spring upgrade is ideal for trucks with fuel plate tuning, AFC adjustments, larger injectors, or other common 12-valve modifications where the factory governor limit becomes a restriction. By extending RPM capability, you’ll reduce early upshifts, improve pull through each gear, and take advantage of additional fueling that your P7100 pump can deliver.
Fitment
- 1994–1998 Dodge Ram 2500 / 3500
- 5.9L 12-Valve Cummins Diesel Engine
- Bosch P7100 injection pump equipped trucks
Key Features & Benefits
- Raises governor limit to approximately 3000 RPM
- Improves mid-range and high-RPM throttle response
- Helps reduce early shifting and keeps the engine in the powerband
- Ideal for tuned P7100 pumps and common fueling upgrades
- Designed for performance builds while maintaining drivability
Cross-Reference & Compatible BD Diesel Products (BD DIESEL ONLY)
- BD DIESEL 1040185 P7100 GOVERNOR SPRING KIT 4000RPM DODGE RAM 2500/3500 1994–1998 5.9L 12-VALVE ENGINE
- BD DIESEL 1040181 5.9L CUMMINS P7100 AFC SPRING KIT DODGE RAM 2500/3500 1994–1998 12-VALVE ENGINE
What does a 3000 RPM governor spring kit do?
It raises the engine’s governor limit to allow the 12-valve Cummins to rev higher, helping you stay in the powerband longer and improving top-end performance.
Is professional installation recommended?
Yes. This kit requires disassembly inside the P7100 injection pump and should be installed by a qualified diesel injection pump technician.
Will this kit add horsepower by itself?
This kit primarily increases usable RPM range. The biggest gains are seen on tuned trucks where fueling is already increased and the factory governor limit becomes a restriction.
Specifications for BD DIESEL PRODUCTS 1040187
| Specification | Details |
|---|---|
| Brand | BD Diesel |
| Part Number | 1040187 |
| UPC | Not Found |
| GTIN | Not Found |
| Shipping Info | Ships ground |
| Prop 65 | California Proposition 65 Warning |
