- Truck Engines:
- 3126B (S/N: 1AJ1-UP; 7AS1-UP; 8SZ1-UP; 8YL1-UP; BKD1-UP)
- 3406E (S/N: 1MM1-UP; 2WS1-UP)
- C-10 (S/N: 3CS1-UP)
- C-12 (S/N: 2KS1-UP)
- C-15 (S/N: 6NZ1-UP)
- C-16 (S/N: 7CZ1-UP)
Description of Change: The new pressure sensors have improved connector contacts in order to provide improved durability and more reliable transmission of the signal.
Adaptable To: The new pressure sensors are direct replacements for the former sensors. Refer to Table 1. The new sensors are adaptable to first production of the engine models that are listed above. The pins in the mating connector on the engine wiring harness should be replaced with three 9X-3401 Connector Pins .
If an engine that is equipped with the former pressure sensors logs a diagnostic code that relates to a pressure sensor, but the diagnostic code is not active, do not replace the sensor. Rather, the former sensors should be updated by replacing the connector sockets with three 9X-3402 Connector Sockets. The pins in the mating connector on the engine wiring harness should be replaced with three 9X-3401 Connector Pins.
3126B     | ||
---|---|---|
New Part Number     | Description     | Former Part Number     |
194-6722     | Pressure Sensor (Atmospheric)     | 161-9925 (1)     |
194-6723     | Pressure Sensor (Boost)     | 161-9928 (1)     |
194-6726     | Pressure Sensor (Injection Actuation)     | 167-1708 (1)     |
( 1 ) | Early 3126B Engines (S/N: 7AS; 8SZ) used sensors which preceded these part numbers. |
C-10, C-12, C-15, C-16, and 3406E     | ||
---|---|---|
New Part Number     | Description     | Former Part Number     |
194-6722     | Pressure Sensor (Atmospheric)     | 161-9925     |
194-6724     | Pressure Sensor (Boost)     | 161-9929     |
194-6725     | Pressure Sensor (Engine Oil)     | 161-9931     |