Product Description
The Cummins 3923015 OEM Clip / Spring Nut is the factory-correct hardware used to secure the tappet cover (valley cover) on 1994–1998 Dodge Ram 2500/3500 trucks with the 5.9L 12-Valve Cummins. This genuine Cummins spring nut provides the correct clamping tension and vibration resistance needed to prevent oil seepage and ensure a leak-free seal. When restoring or servicing the tappet cover, replacing worn or fatigued hardware with genuine Cummins is essential for long-term durability.
Fitment
- 1994–1998 Dodge Ram 2500/3500 with 5.9L 12-Valve Cummins (6BT)
- Cummins B-Series 5.9L 6BT engines using the OEM tappet/valley cover assembly
Note: For industrial/off-highway engines, confirm by ESN to ensure correct hardware placement.
Cross-Reference (Cummins-Only)
Related tappet cover and valvetrain service hardware:
• Cummins 3900267 Tappet Cover Bolt Grommet Seal
• Cummins 3903924 OEM Timing Pin – 12-Valve
• Cummins 3909395 OEM Spring Hose Clamp – Dipstick
FAQ
What does the Cummins 3923015 spring nut secure?
This OEM spring nut secures the tappet (valley) cover on 1994–1998 12-Valve Cummins engines.
Should spring nuts be replaced when resealing the tappet cover?
Yes. Spring nuts lose tension from age and heat cycling, and new genuine Cummins hardware ensures a leak-free seal.
Does this fit only 12-Valve engines?
Yes — this hardware is specific to the 1994–1998 5.9L 12-Valve tappet/valley cover design.
Is this the same style nut used on valve covers?
No. The tappet cover hardware is application-specific and uses a unique spring-style retention nut.
Specifications for cummins 3923015
| Specification | Value |
|---|---|
| Brand | Cummins Genuine Parts |
| Part Number | 3923015 |
| Component Type | Clip / Spring Nut – Tappet Cover Hardware |
| UPC | Not Published |
| GTIN | Not Published |
| Cross Reference | Used with OEM tappet/valley cover bolt and seal assemblies |
| E-Codes | N/A |
| Shipping Weight | 0.02 lbs |
| Package Dimensions | 1 x 1 x 1 in |
| Prop 65 Warning | Not Applicable |
