Description
The PAI 040111 is a turbocharger-to-exhaust-manifold mounting stud for Cummins N14 and 855 series engines, replacing Cummins 3056155. Sold as a 4-pack — the exact quantity needed for one turbo. Each stud is dual-threaded (3/8″-16 UNC coarse on one end, 3/8″-24 UNF fine on the other), 2″ overall, in Grade B7 alloy steel for high-heat service.
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 040111 |
| Part Type | Turbocharger Mounting Stud |
| Thread End 1 | 3/8″-16 UNC (coarse) |
| Thread End 2 | 3/8″-24 UNF (fine) |
| Overall Length | 2.00 in |
| Material / Grade | Alloy Steel, Grade B7 |
| Quantity | 4 per pack |
| Country of Origin | USA |
Cross References
This part replaces or is equivalent to the following part numbers:
- Cummins: 3056155
Related PAI Kits
This stud is included in the following PAI exhaust manifold mounting kits:
- PAI 180984 (Cummins 3800232) — Exhaust Manifold Mounting Kit, 855
- PAI 181010 (Cummins 3803271) — Exhaust Manifold Mounting Kit, N14
- PAI 181011 — Exhaust Manifold Mounting Kit, N14 Celect Plus
Applications
This turbocharger mounting stud fits the following engines:
- Cummins N14 14L (Celect, Celect Plus)
- Cummins 855 14L (Big Cam, Small Cam — NT, NTC, NTA, NTCC variants)
Representative vehicles using these engines:
- Freightliner Classic / FLD / Century (1980s–2000s)
- Kenworth W900 / T800 (1980s–2000s)
- Peterbilt 379 / 378 (1980s–2000s)
- International, Western Star, Mack, and Volvo Class 8 tractors with N14 / 855
Installation Notes
This 4-pack provides the complete stud set for one turbocharger. Pair with PAI 040009 turbocharger lock nuts (Cummins 3010914) for proper installation. Replace turbo mounting and air crossover gaskets at the same service. Apply anti-seize to threads and torque to Cummins specifications.
Verify your engine model and application before ordering to confirm fitment.
