SONNAX product - ZF Factory recommends to change the oil pump G-OPP-5HP19-Audi instead - this bush is an oversized bush and needs to be finished by the mechanic during installation.

Installation of Oversized Finish-in-Place Pump Bushing 85916-01U
1. Remove and discard OEM bushing.
2. Machine pump housing bore ID to 1.9992" +/- .0005" (O50.780mm +/- 0.013mm)
3. The post-machining surface finish of the pump housing bore must be Ra60 - Ra125.
4. Install new Sonnax bushing.
5. ID of newly installed bushing must be machined in place. The surface finish should be Ra30
or better. Recommended diametric clearance is .002" (.051mm), or .001" (.025mm) per side.
Measure the OD of the mating converter hub, add .002" (.051mm), and machine the ID of
the installed bushing to the calculated dimension.

front pump

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1

5HP19

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