Product Description
Cummins 3933130 — Genuine Inner Throttle Return Spring (with End Clips)
MPN: 3933130 | Also Known As: accelerator return spring (inner), tension spring | Ends: OE plastic clips on each end
Restore crisp pedal feel on your 2nd Gen. The genuine Cummins 3933130 inner throttle return spring is the OE replacement for the 1994–1998 Ram 2500/3500 5.9L 12-valve (P7100). Built to OE rate and length, with the correct molded plastic clips for a clean, secure install at the throttle bellcrank.
Features & Benefits
- OE spring rate & free length for proper pedal return and idle control.
- Direct-fit hardware with factory-style plastic end clips—no bending or universal hooks.
- Durable spring steel resists sagging and corrosion.
- Fixes lazy pedal and helps prevent sticky throttle caused by weak/broken springs.
- Genuine Cummins quality and traceability.
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1994–1998 | 5.9L 12V (P7100) | Ram 2500 / Ram 3500 |
Industrial/Off-Highway: Cummins catalogs 3933130 as a tension spring used primarily on B-Series 5.9L engines in non-certified/industrial configurations—verify by ESN for equipment applications.
Compatibility Notes:
- Not for 1998.5–2002 24-valve (VP44) or 2003+ common-rail trucks (different throttle systems).
- This is the inner return spring. The outer spring (Cummins 3925377) is sold separately—replace both for best results.
Specifications
- Type: Accelerator / throttle return spring (inner)
- OE Part Number: 3933130
- Ends: Integrated plastic clips (both ends), OE style
- Material: Spring steel
- Quantity Required: 1 per vehicle (inner spring)
Often Paired With
- Outer throttle return spring: Cummins 3925377 (’94–’98)
- Throttle linkage bushings / bellcrank bushings (reduce play and slop)
- Throttle linkage rod kit or ends (service while access is open)
What’s In The Box
- (1) Genuine Cummins Inner Throttle Return Spring (3933130) with plastic end clips
Installation Tips
- Note the original routing and clip orientation before removal.
- Inspect the bellcrank and linkage for wear; replace the outer spring (3925377) at the same time.
- After installation, verify smooth pedal travel and positive return to idle.
FAQ
WILL THIS FIT MY 1994–1998 12-VALVE RAM?
Yes—this is the OE inner throttle return spring for 1994–1998 5.9L 12V (P7100) trucks.
IS THIS THE INNER OR OUTER SPRING?
This listing is the inner spring with plastic clips. The outer spring is Cummins 3925377 (sold separately).
DOES IT INCLUDE THE CLIPS?
Yes—this OE spring includes the factory-style plastic clips on both ends for quick install.
DOES THIS FIT 24-VALVE OR COMMON-RAIL TRUCKS?
No—those platforms use different throttle/APS systems. This spring targets 1994–1998 12-valve with a P7100.
SHOULD I REPLACE BOTH SPRINGS?
Recommended. Replacing inner 3933130 and outer 3925377 together restores proper pedal feel and return force.
