Description
PAI 180233 is a 90° elbow fuel check valve that mounts at the fuel gear pump inlet on Cummins N14 CELECT and CELECT Plus engines. By blocking back-flow to the tank at shutdown, it keeps fuel pressure in the supply lines so the engine starts cleanly without extended cranking. Direct aftermarket replacement for Cummins 3033740, with PAI’s 2-year unlimited mileage warranty.
Signs You Need a New Fuel Check Valve
- Hard starting or extended cranking after the truck has sat overnight
- Fuel pressure drops rapidly after engine shutdown
- Engine starts fine warm but struggles after cooling down
- Loss of prime requiring repeated key cycles to build pressure
- Air in the fuel system with no visible leaks
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 180233 |
| Part Type | Fuel Check Valve, 90° Elbow |
| Thread Size | 3/8″-24 x 7/16″-20 |
| Engine Compatibility | Cummins N14 CELECT, N14 CELECT Plus |
| Weight | 0.07 lb |
| Warranty | 2-Year PAI Factory Warranty |
Cross References
This part replaces or is equivalent to the following part numbers:
- Cummins: 3033740
- Interstate-McBee: M-3033740
Applications
This fuel check valve fits the following engines:
- Cummins N14 CELECT, 14L (1991-1995)
- Cummins N14 CELECT Plus, 14L (1995-2002)
Representative vehicles using these engines:
- Peterbilt 357, 377, 378, 379, 385, 386, 389 (1991-2000)
- Kenworth W900, T800, T600, C500 (1991-2000)
- Freightliner FLD112, FLD120, Classic, Century Class (1991-2000)
- Western Star 4900, 4964 (1991-2000)
- International 9300, 9400, 9900 (1991-2000)
- Volvo VNL with N14 (2000-2002)
Pairs with PAI 180110 fuel gear pump.
Verify your engine serial number and configuration before ordering to confirm fitment.
