Product Description
Interstate-McBee M-3903924 P7100 Timing Pin — 1994–1998 5.9L Cummins (12-Valve)
Service-grade replacement timing pin for Bosch P7100 (P-pump) applications on the 1994–1998 Dodge Ram 2500/3500 with the 5.9L Cummins 12-valve. Used to positively locate timing during pump/gear service and timing adjustments. Sold individually.
- Accurate timing reference: Locates the factory timing notch for consistent setup.
- Direct replacement: OE-equivalent geometry for proper engagement and sealing.
- Durable construction: Built for repeated service use.
Specifications
| Brand | Interstate-McBee |
| Part Number | M-3903924 |
| OEM Reference | Cummins 3903924 |
| Component | P7100 injection pump timing pin |
| Sold As | Each (1 pin assembly) |
What’s Included
- (1) P7100 timing pin assembly
Vehicle/Engine Fitment
Always verify by engine serial number (ESN) when possible.
- Dodge Ram 2500/3500 — 5.9L Cummins 12-valve (1994–1998) with Bosch P7100 injection pump
- Other B-Series applications using the P7100 and calling out Cummins 3903924 (confirm by ESN)
Install Notes
- Use only with the engine off; rotate the engine by hand when engaging the pin.
- Thread the pin into the timing cover port; gently rotate the crankshaft until the pin drops into the timing notch.
- Do not crank or start the engine with the pin engaged. Remove the pin after timing is set.
- Inspect the sealing surface/O-ring area and tighten to factory specification.
- Refer to the Cummins service manual for complete timing procedures.
Recommended/Related Parts
- Front cover gasket/seal kit (if the cover is removed during service)
- P7100 pump gear nut and washer (replace if damaged or stretched)
- Dial indicator & adapter (for fine timing adjustments, as required)
Why Buy From CPP Diesel
- ESN-verified fitment support from diesel specialists
- Fast shipping and easy returns
- Extensive inventory of Cummins B-Series maintenance and hard parts
FAQ
Will this fit my 1994–1998 5.9L Cummins?
Yes—this timing pin is for the 12-valve 5.9L Cummins with the Bosch P7100 (1994–1998). If in doubt, verify by ESN.
How many do I need?
One per engine—sold individually.
Does this work on 24-valve (1998.5–2002) engines?
No. 24-valve engines use the VP44 system and different timing/service procedures.
