Product Description
The Cummins 3932321 OEM Oil Fitting is the factory-correct male connector used to join the engine block oil port to the oil-supply tee on 1994–1998 5.9L 12-Valve Cummins (6BT) engines. This fitting is essential for proper oil flow distribution and leak-free lubrication circuit performance. Manufactured to Cummins’ precise thread and sealing specifications, this OEM connector ensures reliable engagement and prevents common issues found with off-brand fittings such as leaks, thread distortion, or inconsistent oil pressure.
If you're replacing worn or damaged oil plumbing components, repairing a leaking tee, or restoring a stock 12-valve engine, the genuine Cummins 3932321 oil fitting provides the long-term durability required for high-mileage work trucks, performance builds, and daily drivers alike.
Fitment
- 1994–1998 Dodge Ram 2500/3500 with 5.9L 12-Valve Cummins (6BT)
- Engine block oil port → OEM oil line tee connection
- Compatible with OEM lubrication routing only (aftermarket tees may vary)
Cross-Reference (Cummins-Only)
Commonly paired Cummins lubrication and hardware components:
• Cummins 3915787 Threaded Plug – Oil Filter Housing
• Cummins 3900625 Hex Flange Head Cap Screw
• Cummins 3900267 Tappet Cover Bolt Grommet Seal
FAQ
What does the Cummins 3932321 oil fitting do?
This fitting connects the engine block oil port to the oil distribution tee, ensuring proper oil flow to downstream components.
Is this fitting specific to the 12-valve 5.9L?
Yes. The 3932321 is used on 1994–1998 5.9L 12-Valve Cummins. Other years and engine families may use different fittings.
Can I use aftermarket brass fittings instead?
Not recommended. OEM Cummins fittings ensure correct thread pitch, material strength, and sealing required for stable oil pressure.
Does this fitting require thread sealant?
Depending on the application, Cummins may specify thread sealant for oil galley connections. Always follow the Cummins service manual for your ESN.
Specifications for cummins 3932321
| Specification | Value |
|---|---|
| Brand | Cummins Genuine Parts |
| Part Number | 3932321 |
| Component Type | Oil Fitting – Male Connector (Block to Tee) |
| UPC | Not Published |
| GTIN | Not Published |
| Cross Reference | Used with OEM 12V lubrication tees and lines |
| E-Codes | N/A |
| Shipping Weight | 0.05 lbs |
| Package Dimensions | 1 x 1 x 1 in |
| Prop 65 Warning | Not Applicable |
