Product Description
Interstate-McBee M-3920691 Piston Wrist Pin Retaining Ring – 94–07 5.9L Cummins (Sold Individually)
OEM-style wrist pin retaining ring (circlip) engineered by Interstate-McBee for 1994–2007 5.9L Cummins B-Series applications. Direct-fit aftermarket replacement for Cummins 3920691. Built for reliable pin retention and long service life during high-load diesel use.
- Direct replacement: Matches OEM form/fit/function for fast, hassle-free installs.
- Durable spring steel: Maintains tension to keep the wrist pin securely in place.
- Sold individually: 2 clips per piston; 12 clips required for a complete 6-cyl engine.
- Aftermarket value: Interstate-McBee quality at a fraction of OEM pricing.
Specifications
Interstate-McBee P/N | M-3920691 |
---|---|
OEM Cross-Reference | Cummins 3920691 (also referenced: 3901706) |
Component | Piston wrist pin retaining ring (circlip) |
Material | Heat-treated spring steel |
Qty Needed | 2 per piston (order 12 for full engine) |
Package Contents | (1) retaining ring |
Vehicle Fitment
Always verify by Engine Serial Number (ESN) for exact configuration.
- Dodge Ram 2500/3500 – 5.9L Cummins
- 1994–1998 12-Valve 6BT (P7100)
- 1998.5–2002 24-Valve ISB (VP44)
- 2003–2007 24-Valve ISB (Common Rail)
- Note: Also commonly used on earlier 1989–1993 5.9L 12V applications; verify by ESN.
Installation Tips
- Use new clips during piston/wrist pin service; do not reuse old clips.
- Confirm the clip is fully seated in the groove—audible “snap” and visual inspection.
- Protective eyewear recommended; clips are spring-loaded.
- Follow the Cummins service manual for piston/pin orientation and clearances.
Warranty
Interstate-McBee new engine parts include manufacturer warranty coverage. Contact us for coverage details for this category.
Cross-References & Related Parts
- OEM: Cummins 3920691 (alt ref 3901706)
- Related: Wrist Pin Cummins 3934048 (1994–2002), 3934047 (2004.5–2007); Interstate-McBee Wrist Pin Bushing M-4891178.
Why Buy From CPP Diesel
- Expert ESN-verified fitment for B-Series Cummins.
- Fast shipping & easy returns.
- Diesel pros on call for build planning and parts bundling.