Product Description
Genuine Cummins
Cummins 3900625 — Hex Flange Head Cap Screw (M6 x 1.00 x 10) for Intake Air Heater Harness / Intake Manifold
MPN: 3900625 | Also Known As: intake air heater wiring harness mounting bolt, hex flange cap screw | Size: M6 x 1.00 x 10 mm
Why This Part
- ✓ OE hardware for secure, correct fastening on ISB platforms (intake/harness areas).
- ✓ Direct-fit for Ram 5.9L/6.7L applications in the listed years.
- ✓ Proper thread/length (M6 x 1.00 x 10) to protect mating threads and ensure clamp load.
- ✓ Restores factory fit & reliability when replacing missing/corroded bolts.
OE Hardware Direct Fit Intake / Harness
Quick Specs
| Type | Hex Flange Head Cap Screw (bolt) |
|---|---|
| OE Part # | 3900625 |
| Size | M6 x 1.00 x 10 mm |
| Typical Locations | Intake air heater wiring harness / intake manifold area; related brackets |
| Qty Required | As needed per assembly (check service manual) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 2003–2013 | Ram 5.9L / 6.7L ISB (24V Common-Rail) | Ram 2500/3500 |
Notes: This OE hardware is used in intake/harness locations on ISB platforms in these years; always verify by VIN/ESN and service manual for your specific assembly.
Often Paired With
- Intake Air Heater (IAH) wiring harness / brackets (application-specific)
- Intake manifold/horn gaskets after service
- Dielectric grease & anti-seize as specified by service procedures
What’s In The Box
- (1) Genuine Cummins Hex Flange Head Cap Screw (3900625)
Install Tips
- Clean threads and mating surfaces; start by hand to avoid cross-threading.
- Tighten to factory torque; do not over-tighten small fasteners.
- Replace any damaged clips or brackets during reassembly.
FAQ
WILL THIS FIT MY 2003–2013 5.9L/6.7L CUMMINS RAM?Yes—this OE hardware is used in intake/harness locations on 2003–2013 Ram 2500/3500 with 5.9L & 6.7L ISB (verify by VIN/ESN and service manual).
WHAT SIZE IS THIS BOLT?M6 x 1.00 x 10 mm hex flange head cap screw.
WHERE IS IT USED?Commonly for intake air heater wiring harness mounting and related intake manifold/bracket locations.
HOW MANY DO I NEED?Quantity varies by bracket/assembly. Check your service manual or count existing hardware.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3900625 hardware for proper fit and clamp load.
