GM uses a wear plate to prevent the pump from wearing the magnesium case. However, the wear plate fails prematurely, allowing leaks to develop as the lugs wear through the case. Sonnax offers an improved version of the OE wear plate using harder materials.

Fits NP136, 236, 246 and others with magnesium cases
Harder than OE version
Drop-in replacement

More From This Category

TCI Speedometer Gear, Driven, 44-Tooth, Gray, GM Turbo-Hydromatics, Each

TCI Speedometer Gear, Driven, 44-Tooth, Gray, GM Turbo-Hydromatics, Each

$49.76

TCI Solenoid, Trans-Brake, Steel, Natural, For Ford, C-4, Each

TCI Solenoid, Trans-Brake, Steel, Natural, For Ford, C-4, Each

$319.87

Wilwood Bearing Cone, Stock Hub, Inner

Wilwood Bearing Cone, Stock Hub, Inner

$37.27

Sonnax Ain. Hub Front Bushing, BMW, ZF8Hp45/50/55/70/75, 845Re

Sonnax Ain. Hub Front Bushing, BMW, ZF8Hp45/50/55/70/75, 845Re

$44.10

TCI Speedometer Gear, Drive, 15-Tooth, Olive Green, GM 700R4, Each

TCI Speedometer Gear, Drive, 15-Tooth, Olive Green, GM 700R4, Each

$49.76