Product Description
Genuine Cummins
Cummins 3934048 — Piston Pin / Wrist Pin for B-Series (4BT/6BT) & Ram 5.9L
MPN: 3934048 | Also Known As: wrist pin, gudgeon pin | Common Cross-Refs (ID only): 3901793, 4991283
Why This Part
- ✓ OE-spec wrist pin for factory piston/rod assemblies.
- ✓ Direct-fit for 1994–2002 Ram 5.9L 12V & 24V builds (verify by VIN/ESN).
- ✓ Hardened steel construction for long service life.
- ✓ Ideal during rebuilds or piston replacements to restore clearances.
OE Fit Stock Replacement 6 Per Engine
Quick Specs
| Type | Piston wrist pin (gudgeon pin) |
|---|---|
| OE Part # | 3934048 |
| Cross-Refs (ID): | 3901793, 4991283 |
| Qty Required | 6 per engine (sold individually) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1994–2002 | Ram 5.9L Cummins (12V & 24V B-Series) | Ram 2500/3500 |
Industrial/Off-Highway: Used primarily on Non-Certified 5.9L B-Series/Power Gen engines; verify by ESN before ordering.
Often Paired With
- Wrist Pin Retaining Clips: Cummins 3920691 (use new clips on reassembly)
- Piston & Ring Sets: matched to your 12V/24V build spec
- Connecting Rod Bushings: inspect/replace if clearance is out of spec
What’s In The Box
- (1) Genuine Cummins Piston Wrist Pin (3934048)
- Retaining clips & pistons sold separately.
Install Tips
- Measure pin-to-bushing clearance; replace/resize bushings as needed.
- Always use new retaining clips; ensure full seating in grooves.
- Oil-lube the pin during assembly and verify piston orientation.
FAQ
WILL THIS FIT MY 1994–2002 5.9L CUMMINS RAM?Yes—XDP lists 3934048 for 1994–2002 Dodge/Ram 5.9L Cummins applications (verify by VIN/ESN and piston style).
IS THIS A GENUINE CUMMINS WRIST PIN?Yes—OE Cummins 3934048 wrist pin for B-Series builds.
WHAT ARE COMMON CROSS-REFERENCES?Common identifiers include 3901793 and 4991283 (for search/ID only—order by 3934048 for OE).
HOW MANY DO I NEED?Six per engine—this listing is sold individually so you can order the exact quantity you need.
DO I NEED NEW CLIPS?Yes—always install new retaining clips (Cummins 3920691) during assembly.
Product Videos
Custom Field
Vehicle Year 1994-2002
Vehicle Make DODGE
ENGINE 5.9L 12/24V CUMMINS
