Product Description
The BD DIESEL 1040181 P7100 AFC Spring Kit is designed for Dodge Ram 2500 and 3500 trucks equipped with the 5.9L Cummins 12-valve engine and Bosch P7100 injection pump. This kit replaces the stock air-fuel control (AFC) spring with lighter and medium tension options to allow fuller AFC link movement under boost conditions, which can improve fuel delivery and throttle response.
The BD Diesel spring kit includes both medium and light tension springs, a variety of M6 x 1.0 break-off screws, button-head Allen screws, and Allen wrenches to accommodate many P7100 pump configurations. Installing this kit helps ensure full AFC link travel without excessive preload from the stock spring, supporting smoother fuel delivery and improved engine response under load.
Fitment
- 1994–1998 Dodge Ram 2500 – 5.9L Cummins 12-Valve
- 1994–1998 Dodge Ram 3500 – 5.9L Cummins 12-Valve
Note: This kit is specifically for 12-valve Cummins engines with the Bosch P7100 injection pump. Not intended for use in other pump or engine configurations.
Cross-Reference / Compatible BD DIESEL Products
FAQ
What does the AFC spring kit do?
It replaces the stock AFC spring in the P7100 pump with lighter and medium tension springs, which can allow fuller air-fuel control link movement under boost for improved fueling control.
Is this a performance part?
Yes — by changing spring tensions, this kit helps optimize fuel delivery characteristics for boosted or modified 12-valve engines.
Is installation difficult?
Installation involves disassembling the injection pump’s AFC housing and replacing springs; this is best done by a qualified technician.
Specifications for BD DIESEL PRODUCTS 1040181
| Specification | Details |
|---|---|
| Brand | BD Diesel Performance |
| Part Number | 1040181 |
| UPC | 019025017634 |
| GTIN | 0019025017634 |
| Shipping Info | Ships as a complete P7100 AFC spring kit |
| Prop 65 | This product may be subject to Prop 65. See www.P65Warnings.ca.gov |
