Product Description
The CUMMINS 3935888 OEM STARTER MOTOR is the factory engine starter designed specifically for 1994–2002 Dodge Ram trucks equipped with the 5.9L 12-valve and 24-valve Cummins diesel. This genuine Cummins starter delivers the torque, durability, and cold-cranking reliability that aftermarket units can’t match. If you’re experiencing slow cranking, hard starts, intermittent no-start conditions, or excessive solenoid clicking, replacing the worn starter with this OEM unit restores factory performance and long-term reliability.
Built to handle the high compression of the 5.9L ISB and 12-valve engines, the 3935888 OEM starter features OE-grade windings, sealed bearings, precision solenoid engagement, and correct tooth pitch for consistent flywheel engagement. This is the same starter installed on Cummins engines from the factory—no substitutions, no cheap rebuilds, and no non-spec internals.
Key Features & Benefits
- Genuine Cummins 3935888 factory starter motor.
- Correct torque output for 12-valve and 24-valve 5.9L Cummins engines.
- OEM solenoid, OE windings, and correct gear engagement.
- Designed for long life in harsh high-compression diesel operation.
- Direct bolt-on replacement—no modifications required.
Fitment
This genuine Cummins starter fits:
- 1994–1998 Dodge Ram 2500/3500 5.9L Cummins 12-valve
- 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins 24-valve ISB
Transmission: Fits both manual and automatic applications.
Always confirm fitment with your engine serial number for best accuracy.
Cross-Reference (Identification Only)
- Cummins 3935888 (Primary)
- Cummins 3923279
- Mopar 56027213AB
- Fleet & aftermarket references vary—verify before substituting.
Recommended Related Cummins Parts
- CUMMINS 3937111 FRONT CRANKSHAFT SEAL SERVICE KIT – 5.9L (1989–2007)
- CUMMINS 3804899 OEM FRONT CRANKSHAFT SEAL – 5.9L/6.7L
- CUMMINS 3920706 OEM EXPANSION PLUG – 5.9L/6.7L
Installation Notes
- Disconnect both batteries before removing the starter.
- Inspect flywheel teeth for wear before installation.
- Torque mounting bolts to factory specification.
- Verify clean cables and proper grounding for best starter life.
Specifications for cummins 3935888
| Specification | Detail |
|---|---|
| Brand | Cummins (Genuine OEM) |
| Part Number | 3935888 |
| Engine Compatibility | 1994–2002 Dodge Ram 2500/3500 5.9L Cummins (12V & 24V) |
| Fuel Type | Diesel |
| GTIN | Not published by Cummins |
| UPC | Not published by Cummins |
| Shipping Weight | Approx. 17–20 lbs |
| Shipping Dimensions | 14 × 7 × 7 in (approx.) |
| Shipping Method | Ground / Standard Parcel |
| Cross Reference | Cummins 3935888, Cummins 3923279, Mopar 56027213AB |
| E-Codes / Emissions | Not emissions-controlled |
| Prop 65 Warning | This product may contain materials known to the State of California to cause cancer or reproductive harm. For more information, visit www.P65Warnings.ca.gov. |
FAQ
IS THIS CUMMINS 3935888 STARTER A GENUINE OEM UNIT?
Yes. This is an authentic, brand-new Cummins OEM starter motor—NOT a rebuild or aftermarket copy. It is identical to the starter supplied through Cummins and Ram dealer parts departments.
WILL THIS FIT BOTH 12-VALVE AND 24-VALVE 5.9L CUMMINS?
Yes. The 3935888 starter is correct for 1994–2002 5.9L Cummins engines, including both 12-valve and 24-valve ISB configurations.
WHAT ARE THE TYPICAL SYMPTOMS OF A FAILING STARTER?
Slow cranking, clicking without engagement, intermittent no-start conditions, or smoke/smell from the starter area typically indicate a failing starter motor.
DO I NEED SPECIAL PROGRAMMING AFTER INSTALLATION?
No programming or recalibration is required. Simply install the starter, connect batteries, and the engine will start normally.
SHOULD I REPLACE ANY OTHER PARTS WHILE CHANGING THE STARTER?
It is a good idea to inspect and clean battery terminals and cables, and verify all grounds. CPP Diesel also recommends inspecting related Cummins components such as the 3937111 crankshaft seal kit or 3804899 front seal during general engine service.
