Selecting Correct Part Numbers For Caterpillar Pressure Sensors and Adapter Harnesses for Certain Machines and Engines
| Parts List: Most Applications except 793D Off-Highway Truck/Tractors |
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| 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 |
| Parts List: 793D Off-Highway Truck/Tractors Only |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| ( 1 ) | If any of these harnesses are replaced with the 424-2194 Engine Harness As , the sensors must also be replaced. |