Description
The PAI 040097 is a premium aftermarket studded exhaust manifold bolt designed for Cummins B-series diesel engines. This flanged hex head capscrew features a dual-thread studded design (M10 x 1.5 x 65mm on one end, M10 x 1.5 x 20mm on the other) for secure exhaust manifold attachment. PAI Industries manufactures this bolt from medium carbon steel with a black zinc phosphate finish for corrosion resistance, backed by a 2-year unlimited mileage warranty. Made in USA.
Signs You Need New Exhaust Manifold Bolts
- Exhaust leak noise (ticking or hissing) from the manifold area
- Visible rust, corrosion, or stretched bolts
- Broken or sheared bolt heads during removal
- Exhaust smell in the cab or engine compartment
Specifications
| Manufacturer | PAI Industries |
| Part Number | 040097 |
| Part Type | Exhaust Manifold Stud Bolt |
| Engine Compatibility | Cummins 4B3.9, 4BT, 6B5.9, 6BT, 6BTA, ISB, QSB |
| Thread Size (A) | M10 x 1.5 x 65mm |
| Thread Size (B) | M10 x 1.5 x 20mm |
| Hex Size | 13mm |
| Grade | 10.9 |
| Material | Medium Carbon Steel |
| Finish | Black Zinc Phosphate |
| Country of Origin | USA |
| Warranty | 2 Years Unlimited Mileage |
Cross References
| Manufacturer / Brand | Part Number |
|---|---|
| Cummins | 3944655, 5285901 |
Applications
This exhaust manifold stud bolt fits Cummins 4B, 6B, ISB, and QSB series engines (3.9L, 5.9L, 6.7L) found in:
- Dodge Ram 2500, 3500 (1994–2019 with 5.9L and 6.7L Cummins)
- Freightliner MT45, MT55, FC70, FC80, FS65
- International, Kenworth, Peterbilt medium-duty trucks
- Blue Bird, Thomas Built school buses
- Hyundai excavators (R290LC-7, R320LC, R360LC-7)
- Komatsu equipment with SAA6D114E engines
- Various agricultural and industrial equipment
Typically 4 studded bolts (3944655) and 7-8 standard bolts (3944593) are required per exhaust manifold. Apply high-temp anti-seize during installation and torque to 32-43 Nm (24-32 lb-ft). Verify your engine configuration before ordering.
