CUMMINS 4089112 OEM P7100 THROTTLE LINKAGE KIT – 5.9L 12-VALVE (1994–1998)

Product Description

The CUMMINS 4089112 OEM P7100 THROTTLE LINKAGE KIT restores smooth, precise throttle control to your 1994–1998 5.9L 12-valve Cummins. Designed to work directly with the legendary Bosch P7100 (P-pump), this factory Cummins linkage kit eliminates binding, inconsistent pedal response, worn pivots, and lost motion found in aged or aftermarket linkage assemblies. If your 12-valve has a hanging idle, poor throttle return, or inconsistent fuel delivery, this OE kit returns the crisp mechanical feel the P-pump is known for.

As a genuine Cummins 4089112 linkage assembly, this kit maintains factory calibration, geometry, and throttle travel—critical for trucks running stock fueling as well as modified P-pump configurations. Whether you’re doing a full front-of-engine reseal, correcting throttle issues, or finishing a fresh P7100 install, this is the correct OE throttle linkage kit for all 1994–1998 Dodge Ram 2500/3500 12-valve models.

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Key Features & Benefits

• Genuine Cummins 4089112 throttle linkage kit – NOT aftermarket.
• Corrects throttle binding, erratic pedal feel, and worn mechanical pivots.
• Maintains factory P7100 pump throttle geometry.
• Ideal for P-pump rebuilds, performance upgrades, and engine bay restorations.
• Direct-fit for all 1994–1998 5.9L 12-valve Cummins trucks.

Fitment

• 1994–1998 Dodge Ram 2500 5.9L Cummins (12-valve, Bosch P7100)
• 1994–1998 Dodge Ram 3500 5.9L Cummins (12-valve, Bosch P7100)

Engine Type: 6BT 5.9L 12-valve
Pump Type: Bosch P7100 (P-pump)
Mounting: OEM throttle bracket & linkage system

Cross-Reference (ID Only)

• Cummins 4089112 (primary)
• Cummins 3931268 (related hardware group)

Cross references are for identification only. Always verify by VIN or ESN.

Related Genuine Cummins Items (Working CPP Diesel Links)

• CUMMINS 3937111 FRONT CRANKSHAFT SEAL SERVICE KIT – 5.9L (1989–2007)
• CUMMINS 3804899 OEM FRONT CRANKSHAFT SEAL – 5.9L/6.7L (2003–2018)
• CUMMINS 3920706 OEM EXPANSION PLUG – 5.9L/6.7L (1989–2018)

Installation Notes

• Verify linkage orientation and spring tension before final tightening.
• Lubricate pivot points for maximum smoothness.
• Confirm full throttle travel from idle stop to WOT.
• Check for interference with fuel lines, AFC housing, or intake horn.

Specifications for cummins 4089112

FAQ

WILL THIS CUMMINS 4089112 THROTTLE LINKAGE KIT FIT MY 12-VALVE?

Yes. This genuine Cummins linkage kit fits all 1994–1998 Dodge Ram 2500/3500 trucks equipped with the 5.9L 12-valve Cummins and Bosch P7100 injection pump.

WHAT SYMPTOMS INDICATE I NEED NEW P7100 THROTTLE LINKAGE?

Common symptoms include hanging idle, sticking throttle, inconsistent pedal feel, excessive slack, and poor throttle return. Worn mechanical pivots or stretched linkage rods cause erratic fueling and slow pump response.

IS THIS A COMPLETE LINKAGE KIT OR JUST HARDWARE?

This is a complete Cummins throttle linkage kit which includes the linkage arm, proper pivots, and OEM-spec hardware required for correct P7100 throttle operation.

DO I NEED TO ADJUST ANYTHING AFTER INSTALLING THIS KIT?

Yes. After installation, verify proper idle stop engagement and full throttle travel. Ensure the linkage does not bind and that the throttle returns smoothly to idle when released.