LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 2009 >> Commander Overland, 4WD >> Repair and Diagnosis (Single Page) >> Transmission >> Transmission Control Systems >> 545RFE Automatic Transmission (Service Information) >> Torque Converter >> Description >> Description >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Torque Converter: Description: Description: Notes

Fig 1: Torque Converter Assembly
GC0104893Courtesy of CHRYSLER LLC
1 - TURBINE ASSEMBLY 5 - IMPELLER ASSEMBLY
2 - STATOR 6 - CONVERTER CLUTCH PISTON
3 - CONVERTER HUB 7 - TURBINE HUB
4 - O-RING -

The torque converter is a hydraulic device that couples the engine crankshaft to the transmission. The torque converter consists of an outer shell with an internal turbine (1), a stator (2), an overrunning clutch, an impeller (5), and an electronically applied converter clutch (6). The converter clutch provides reduced engine speed and greater fuel economy when engaged. Clutch engagement also provides reduced transmission fluid temperatures. The torque converter hub (3) drives the transmission oil (fluid) pump and contains an o-ring seal (4) to better control oil flow.

The torque converter is a sealed, welded unit that is not repairable and is serviced as an assembly.

CAUTION: The torque converter must be replaced if a transmission failure resulted in large amounts of metal or fiber contamination in the fluid.