CUMMINS 3923077 OEM STUDDED FLANGE CAP SCREW – OIL COOLER HOUSING (5.9L 12V 1994–1998)

Product Description

The Cummins 3923077 OEM Studded Flange Cap Screw is the factory-correct bolt used to secure the oil cooler housing on 1994–1998 5.9L 12-Valve Cummins (6BT) engines. This genuine Cummins fastener features an integrated stud and flange head design that provides proper clamping load, alignment, and sealing integrity for the oil cooler assembly. Using the correct OEM hardware prevents leaks, warping, and premature gasket failure—common issues when generic bolts are substituted.

If you are resealing your oil cooler, rebuilding a 12-Valve engine, or restoring OEM-correct hardware, the 3923077 studded flange cap screw ensures long-term durability and perfect fitment.

Fitment

• 1994–1998 Dodge Ram 2500/3500 with 5.9L 12-Valve Cummins (6BT)
• 5.9L B-Series engines using OEM oil cooler housing with studded cap screw locations

Note: Some industrial/off-highway B-Series engines may also use this fastener. Always verify by ESN.

Cross-Reference (Cummins-Only)

Related oil system hardware and components:
• Cummins 3915787 Threaded Plug – Oil Filter Housing / Pressure Relief
• Cummins 3900625 OEM Hex Flange Head Cap Screw
• Cummins 3900267 Tappet Cover Bolt Grommet Seal

FAQ

What does the Cummins 3923077 studded flange cap screw secure?

It fastens the oil cooler housing to the engine block and provides proper alignment using the integrated stud.

Can I reuse the original bolt?

Usually no. Heat cycling can weaken fasteners. Cummins recommends replacing hardware during oil cooler service for best sealing results.

Does this bolt fit 24-Valve ISB engines?

No. This fastener is specific to the 1994–1998 12-Valve 5.9L Cummins oil cooler housing.

How many of these bolts are used on the oil cooler housing?

Most 12-Valve oil cooler housings use a combination of standard and studded flange cap screws. Always compare with your removed hardware.

Specifications for cummins 3923077