Product Description
Interstate-McBee M-3903924 P7100 Timing Pin – 94–98 5.9L Cummins 12-Valve
OEM-style P7100 timing pin for the 1994–1998 Dodge Ram 2500/3500 5.9L Cummins 12-valve. Designed to locate Top Dead Center (TDC) during timing procedures and maintenance. Direct-fit aftermarket replacement for Cummins 3903924. O-ring and housing sold separately.
- Precise TDC location: Helps lock in accurate engine timing on P7100-equipped 12-valve engines.
- Direct replacement: Installs in the factory timing cover location; OEM-equivalent dimensions.
- Durable construction: Built for repeated use during service and adjustments.
- Aftermarket value: Interstate-McBee quality at a lower cost than OEM.
Specifications
| Manufacturer | Interstate-McBee |
|---|---|
| Part Number | M-3903924 |
| OEM Reference | Cummins 3903924 |
| Function | Engine timing/TDC alignment pin (P7100 timing procedures) |
| Included | (1) Timing Pin |
| Related Parts | O-ring seal 3913994 (sold separately); Timing pin housing 3919683 (sold separately) |
Vehicle Fitment
Always verify by Engine Serial Number (ESN) for edge cases.
- Dodge Ram 2500/3500 5.9L Cummins (12-Valve, P7100)
- Model Years: 1994–1998
- Notes: Also used on many B-/C-Series Cummins engines in industrial applications where a timing-cover provision exists. Verify by ESN/application.
Installation Notes
- Follow the Cummins service manual for timing procedures and torque specs.
- Inspect/replace the O-ring (3913994) and housing (3919683) if worn or leaking.
- Clean the bore and lightly lubricate the new O-ring before installation.
Warranty
Interstate-McBee new engine components carry manufacturer warranty coverage. Contact us for exact terms on timing system components.
Why Buy From CPP Diesel
- Clear fitment by year/engine, expert ESN support.
- Fast shipping and hassle-free returns.
- One-stop timing service: pin, O-ring, housing, barring tools & more.
FAQ
Will this pin fit my 1994–1998 12-valve Cummins with a P7100?Yes. This pin is for P7100-equipped 5.9L 12-valve engines used in 1994–1998 Ram 2500/3500 trucks.
Does this include the O-ring and housing?
No. The O-ring (3913994) and housing (3919683) are sold separately and should be replaced if brittle or leaking.
What does the timing pin actually do?
It engages the timing cover detent to locate TDC during timing checks and pump adjustments, ensuring accurate engine timing.
Is this the same as the OEM Cummins 3903924?
Functionally equivalent aftermarket replacement. If you require OEM-boxed parts, order Cummins 3903924.
Product Videos
Custom Field
YEAR 1994-1998
MAKE DODGE
ENGINE 5.9L
