Product Description
Dial in clean power on your 12-valve. The Industrial Injection 232708 AFC Spring Kit gives your P7100’s aneroid (AFC) the stiffer, more controlled spring rate it needs to manage fueling as boost builds — helping reduce low-boost smoke while keeping response crisp on your 1994–1998 Dodge Ram 2500/3500 5.9L Cummins 12-valve.
- Stiffer AFC spring for a smoother fueling ramp under boost
- Improves smoke control without choking top-end power
- Designed for the Bosch P7100 on 12-valve Cummins (1994–1998)
- Great pairing with 3K/4K governor springs and performance fuel plates
Fitment
- 1994–1998 Dodge Ram 2500/3500 — 5.9L Cummins 12-Valve (P7100)
What’s Included
- (1) AFC/Aneroid spring — Industrial Injection 232708
Specifications
| Manufacturer | Industrial Injection |
| Part Number | 232708 |
| Application | P7100 (AFC/Aneroid) — 1994–1998 5.9L Cummins 12-Valve |
| UPC | N/A (manufacturer has not published) |
| GTIN | N/A (manufacturer has not published) |
| Prop 65 | Yes — Cancer and Reproductive Harm |
Recommended Parts
- Industrial Injection 232614 3K Governor Spring Kit — 94–98 Cummins 12V (P7100)
- P7100 Pumps & Components — 94–98 Cummins 5.9L
- BD Diesel 1040181 AFC Spring Kit — Alternative
Helpful Notes
- Intended for P7100 AFC tuning. Verify star-wheel setting and AFC travel after install.
- Best results when combined with proper boost fueling control (fuel plate / governor springs).
FAQ
Will this reduce low-boost smoke on my 12-valve?Yes. The stiffer AFC spring helps delay full fueling until adequate boost is present, which typically reduces off-boost smoke while keeping top-end fueling strong.
Does it fit the VP44 or CP3 trucks?No. This part is for the Bosch P7100 (12-valve, 1994–1998). For other platforms, see our fuel system categories.
Do I need governor springs too?They are not required, but pairing an AFC spring with a 3K/4K governor spring kit helps extend usable RPM and fine-tune drivability. See our recommended parts above.
Is tuning required after installation?At minimum, re-check your AFC star wheel and verify full AFC arm travel under boost. Adjust to your smoke and response preference.
