Description
PAI 450630 is an aftermarket manifold absolute pressure (MAP) / exhaust back pressure (EBP) sensor that replaces Navistar OEM 1840078C1, 1813658C2, 1813658C1, and 1813658 on DT466, DT466E, DT530, I530E, HT530, T444E, VT365, and DT503E engines. Three-pin circular Packard connector with 1/8-27 NPT thread, 1.92 in overall length — used as MAP in the intake manifold or as EBP behind the turbo, depending on engine position.
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 450630 |
| Part Type | Manifold Pressure / Exhaust Back Pressure Sensor |
| Connector | 3-pin circular (Packard / Metri-Pack style) |
| Thread | 1/8-27 NPT |
| Overall Length | 1.92 in |
| Engine Compatibility | Navistar DT466 / DT466E, DT530 / I530E, HT530, T444E, VT365, DT503E |
Cross References
This MAP/EBP sensor replaces or is equivalent to the following part numbers:
- Navistar: 1840078, 1840078C1, 1813658, 1813658C1, 1813658C2
- PAI Industries: 450630
- Alliant Power: AP63429
- Mack: 4333-1840078C1, 4333-1813658C2
Applications
This sensor fits the following Navistar / International engines:
- Navistar DT466 / DT466E 7.6L (1998 – 2003 HEUI)
- Navistar DT530 / I530E 8.7L (1998 – 2003 HEUI)
- Navistar HT530 8.7L high-torque (1998 – 2003)
- Navistar T444E 7.3L (Ford 7.3L Power Stroke parallel)
- Navistar VT365 / DT503E (medium-duty)
Representative vehicles using these engines:
- International 4700 / 4800 / 4900 (DT466 / DT466E) (1998 – 2003)
- International 8100 / 8200 / 8300 (DT530 / I530E) (1998 – 2003)
- School bus chassis with DT466E / I530E (Blue Bird, IC, Thomas Saf-T-Liner)
Verify the sensor port (intake manifold MAP vs exhaust back-pressure tube EBP) before ordering — the same sensor pattern is used in both positions on these engines.









