Description
PAI 045018 piston cooling nozzles (2-pack) for Cummins N14 and 855 cubic-inch NH / NT engines — direct aftermarket replacement for Cummins 3068526, 3082522, and 4058947. The nozzle threads into the cylinder block and sprays a metered oil jet onto the underside of the piston during operation, cooling the piston crown and lubricating the wrist-pin bushing. Body is molded from DuPont Zytel Plus high-temperature reinforced nylon for durability under sustained oil-gallery pressure and heat.
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 045018 |
| Part Type | Piston Cooling Nozzle (Piston Oiler) |
| Engine Compatibility | Cummins N14 (Celect / Celect Plus / mechanical), 855 NH / NT |
| Body Material | DuPont Zytel Plus (heat-stabilized nylon) |
| Pack Quantity | 2 |
Cross References
This piston cooling nozzle replaces or is equivalent to the following part numbers:
- Cummins: 4058947, 3082522, 3068526
Applications
This nozzle fits the following engines (one nozzle per cylinder; six per engine):
- Cummins N14 14.0L (Celect, Celect Plus, mechanical) — 1991–2002
- Cummins NH / NT 855 cubic-inch — 1980s–early 1990s
Representative vehicles using these engines:
- Kenworth W900, T800, T600 with N14 (1991–2002)
- Peterbilt 379, 378, 377, 357 with N14 (1991–2002)
- Freightliner FLD120, Classic, FLA with N14 (1991–2002)
- Mack RD, RW with NT-855 era applications
- Industrial / marine / generator applications using N14 or 855
Verify your engine serial number and configuration before ordering. A full engine replacement uses six (6) nozzles — three packs of this 2-pack SKU.









