Description
PAI 350550 is an aftermarket atmospheric / ambient air pressure sensor that replaces Caterpillar OEM 161-1703 on C7, C9, C13, C15, C18, and 3512 series engines. Three-pin low-pressure sensor that reads barometric (atmospheric) pressure for the ADEM ECM, used in altitude compensation, EGR control, and turbocharger boost-target calculations.
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 350550 |
| Part Type | Atmospheric / Ambient Air Pressure Sensor |
| Connector | 3-pin (Cat-style low-pressure sensor) |
| Engine Compatibility | Cat C7, C9, C13, C15, C18, 3512 |
Cross References
This atmospheric pressure sensor replaces or is equivalent to the following part numbers:
- Caterpillar: 161-1703, 1611703
- PAI Industries: 350550
Applications
This sensor fits the following Caterpillar engines:
- Cat C7 7.2L (on-highway and industrial)
- Cat C9 9.3L
- Cat C13 12.5L
- Cat C15 / C15 ACERT 15.2L
- Cat C18 18.1L industrial
- Cat 3512 industrial / gen-set
Representative vehicles and equipment using these engines:
- Class 8 tractors with Cat C13 / C15 / C15 ACERT (Kenworth W900 / T800, Peterbilt 379 / 389, International ProStar) (2003 – 2010)
- Medium-duty trucks with Cat C7 / C9
- Cat industrial equipment (excavators, loaders, dozers) with C7 / C9 / C13 / C15 power
- Off-highway and gen-set platforms with 3512
Verify your engine ECM family and the sensor mounting position (typically on the air intake or near the ECM) before ordering.
