Description
Manifold absolute pressure (boost) sensor for Navistar International DT466E, MaxxForce 7, MaxxForce DT, and 4000-series and ProStar trucks. PAI 450633 replaces Navistar OEM 1846481C92 and supersedes 1846481C91 and 1846481. Three-pin circular connector with M10×1.0 mounting thread; sized at 1.88″ overall.
Signs You Need a New MAP/Boost Sensor
- Check engine light with manifold or boost-pressure related fault codes
- Loss of power, sluggish acceleration, or poor throttle response
- Black smoke or rough idle from incorrect fuel trim
- Reduced fuel economy
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 450633 |
| Part Type | Manifold Absolute Pressure (MAP) / Boost Sensor |
| Engine Compatibility | Navistar DT466E HEUI, MaxxForce 7, MaxxForce DT |
| Pin Count | 3 |
| Connector Shape | Circular |
| Thread Size | M10×1.0 |
| Overall Length | 1.88 in |
Cross References
This MAP/boost sensor replaces or is equivalent to the following part numbers:
- Navistar / International: 1846481C92, 1846481C91, 1846481
- Mack: 4333-1846481C92
Applications
This sensor fits the following engines:
- Navistar DT466E HEUI
- Navistar MaxxForce 7 (V8, EPA07)
- Navistar MaxxForce DT (DT466 EGR, 2007–2011)
Representative vehicles using these engines:
- International 4300 / 4400 with DT466 / MaxxForce DT
- International 7300 / 7400 / 7600 with DT466 / MaxxForce DT
- International ProStar with MaxxForce 13 family (where 1846481C92 is specified)
- International school bus chassis (CE, RE) with MaxxForce DT
Verify your engine serial number and configuration before ordering to confirm fitment.









