Normal operation of the ZF5HP19 transmission causes wear that leads to excessive bushing and shaft clearance. Sonnax oversized pump bushings 85916-01 and 85916-01U contain one pump bushing each to allow rebuilders to salvage pumps with damaged bushing bores.
Bushings are oversized precision bushings for damaged pump housings. The pump-housing bushing-bore ID will require machining. Bore pump housing to 2.0020” (50.85mm) plus zero/minus .0015” (0.040mm). Outside of pump and front seal bore are both concentric to original pump bushing bore so either can used for centering pump prior to machining. Original housing bore is 1.9693" (50.020mm).