Description
PAI Industries 451341 is a coolant level sensor for Navistar International 1000, 3000, 4000, and 8000 Series trucks, replacing OEM Navistar 2587324C1 and the earlier 2518062C1, 2508573C1, and 2028178C1 supersessions. The 2-pin oval push-in connector and 2.68 in plastic body match the original Navistar sensor mounted in the surge tank or radiator overflow bottle.
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 451341 |
| Part Type | Coolant Level Sensor |
| Engine / Vehicle Compatibility | International 1000/3000/4000/8000 Series |
| Connector | 2-pin oval push-in |
| Overall Length | 2.68 in |
| Color/Finish | Black / Clear |
| Body Material | Plastic |
Cross References
This part replaces or is equivalent to the following part numbers:
- Navistar / International: 2587324C1, 2587324, 2518062C1, 2518062, 2508573C1, 2508573, 2028178C1, 2028178
- Dorman: 904-7550
- PAI Industries: 451341
- Also known as: 4333-2587324C1, 4333-2518062C1
Applications
This coolant level sensor fits the following International truck series:
- International 1000 Series (medium-duty)
- International 3000 Series (school bus / shuttle bus chassis)
- International 4000 Series — including 4300, 4400 (~2002-2017)
- International 8000 Series — including 8100, 8200, 8500, 8600
Verify your truck model and surge-tank / overflow-bottle port configuration before ordering to confirm fitment.









