Cat sensors

Selecting Correct Part Numbers For Caterpillar Pressure Sensors and Adapter Harnesses for Certain Machines and Engines

Table 1
Parts List: Most Applications except 793D
Off-Highway Truck/Tractors
Current Sensor Part Number New Sensor Part Number New Adapter Harness Part Number Type
161-9931 274-6719 249-5294 Engine Oil Pressure and Fuel Pressure
194-6722 274-6717 249-5293 Atmospheric Pressure, Fuel Pressure, Turbocharger Inlet
Pressure, Mass Air Flow, Injection Actuation Pressure, Engine Oil
Pressure, Turbocharger Outlet Pressure, and Boost Pressure
194-6724 276-6793 249-5293 Atmospheric Pressure, Turbocharger Outlet Pressure,
Engine Oil Pressure, Turbocharger Inlet Pressure, Crankcase Pressure,
Boost Pressure, Inlet Manifold Air Pressure, Fuel Pressure, and Mass Air
Flow
194-6725 274-6719 249-5294 Engine Oil Pressure, Fuel Pressure, Injection Actuation
Pressure, Atmospheric Pressure, Turbocharger Inlet Pressure, Turbocharger
Outlet Pressure, Crankcase Pressure, and Inlet Manifold Air Pressure
224-4535 284-2728 249-5293 Variable Valve Actuator Oil Pressure
224-4536 248-2169 249-5294 Injection Actuation Pressure
237-0957 296-5270 249-5294 Hydraulic Fan, Brake Oil Accumulator, and Secondary
Steering
216-3450 274-6720 249-5292 Pressure

Table 2
Parts List: 793D Off-Highway Truck/Tractors
Only
Harness Part Numbers Current Sensor Part Number New Sensor Part Number New Adapter Harness Part Number Plug Kit Part Number Socket Part Number (Quantity of 3) Type
317-3476, 355-8330, and 364-9118 (1) 304-5666 274-6717 249-5293 155-2260 9X-3402 Atmospheric Pressure, Fuel Pressure, Turbocharger Inlet
Pressure, Mass Air Flow, Injection Actuation Pressure, Engine Oil
Pressure, Turbocharger Outlet Pressure, and Boost Pressure
304-5667 276-6793 249-5293 155-2260 9X-3402 Atmospheric Pressure, Turbocharger Outlet Pressure,
Engine Oil Pressure, Turbocharger Inlet Pressure, Crankcase Pressure,
Boost Pressure, Inlet Manifold Air Pressure, Fuel Pressure, and Mass Air
Flow
304-5668 274-6719 249-5294 155-2260 9X-3402 Engine Oil Pressure, Fuel Pressure, Injection Actuation
Pressure, Atmospheric Pressure, Turbocharger Inlet Pressure, Turbocharger
Outlet Pressure, Crankcase Pressure, and Inlet Manifold Air Pressure
424-2194 194-6722 274-6717 249-5293 - - Atmospheric Pressure, Fuel Pressure, Turbocharger Inlet
Pressure, Mass Air Flow, Injection Actuation Pressure, Engine Oil
Pressure, Turbocharger Outlet Pressure, and Boost Pressure
194-6724 276-6793 249-5293 - - Atmospheric Pressure, Turbocharger Outlet Pressure,
Engine Oil Pressure, Turbocharger Inlet Pressure, Crankcase Pressure,
Boost Pressure, Inlet Manifold Air Pressure, Fuel Pressure, and Mass Air
Flow
194-6725 274-6719 249-5294 - - Engine Oil Pressure, Fuel Pressure, Injection Actuation
Pressure, Atmospheric Pressure, Turbocharger Inlet Pressure, Turbocharger
Outlet Pressure, Crankcase Pressure, and Inlet Manifold Air Pressure
( 1 ) If any of these harnesses are replaced with the 424-2194
Engine Harness As , the sensors must also be
replaced.

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