What is the construction and purpose of torque converters?

Torque converters are components mounted between the engine and the automatic gearbox, responsible for smooth power transmission. A typical element consists of a housing, pump, turbine, stator, and in many versions, a lock-up clutch. The entire unit operates in an oil bath and is matched to a specific type of gearbox and engine parameters.

What are torque converters used for?

Torque converters are used for the smooth transmission of torque from the crankshaft to the automatic gearbox input. In addition to starting, they dampen torsional vibrations and reduce jerking during gear shifts. Their operation also affects ATF oil temperature, the car's acceleration response, and the overall smoothness of the drivetrain.

What is the construction and function of the lock-up clutch?

The lock-up clutch is a component integrated with many torque converters that, under certain conditions, limits slip inside the converter. It is used for a more direct connection between the engine and the gearbox during steady driving, which improves efficiency and reduces oil heating. Its operation depends on the gearbox hydraulics, solenoid control, and proper transmission fluid quality.

How to choose a torque converter for a car?

It is safest to compare the OEM part number, interchangeable numbers, gearbox type, and engine/fuel version. It is also worth checking the technical condition of the part, mounting points, and compatibility with vehicle equipment. For some versions, verification by VIN is also helpful.

What symptoms may indicate a problem with a torque converter?

Most often, these are jerking when starting or shifting gears, delayed response to acceleration, humming, and an increase in gearbox operating temperature. These symptoms may worsen after the oil warms up or under heavier vehicle loads. It is always worth checking the filter, oil cooling, and gearbox control as well.

What data in the offer should be paid attention to before purchase?

Useful information includes the brand, part condition, OEM part number, interchangeable numbers, gearbox type, and fuel type. This data makes it easier to compare the part with the component removed from the car. Thanks to this, it is easier to assess compatibility with a specific vehicle configuration.

Torque Converters

At the Global Parts automotive store, we offer a wide selection of original used car parts, including torque converters for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen and others. The torque converters we offer undergo quality control so that you can be sure that you are receiving a top-class product.

More information

Find it faster

Match to your vehicle