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Impeller Hub R4A51, R4A51, Transmission parts, tooling and kits
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Impeller Hub R4A51

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Description

The impeller hub sets in motion the automatic transmission pump. In case of ATF shortages or the torque converter failure, the impeller hub gets overheated. In the process of overheating, expanded metal tears down the pump bushing, thereby leaving "tears" on the impeller hub. Transmission specialists use special equipment for replacement of the impeller hub.

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