AAZ serpentine belt issues..

[Torchd]

Okay I installed it on the 90 amp Bosch alternator. And original pulleys on both the generators were 6 groves in spite of being 90 amp.

The valeo alternator does not take the pulley part# 028 903 119 AA (bosch part# 1 127 011 846 and 1 126 601 565) 6 groves. the shaft is too small in length.

And on the Bosch one the washer behind the 24mm nut has to go behind the new pulley 028 903 119 AA pulley to attain the correct offset.

I must say this thing works wonder!! The belt is so smooth now and doesn't jump any more.. finally that irritating noise is gone.

Thanks guys for all the help; couldn't have done with you all!

[GEE-BEE]

028-903-119AQ ( Euro Caddy & VW Polo )
6 GROOVE
50MM O.D.
17.0MM BORE
1.50 THREAD

028-903-119A ( SAME AS 038-903-119 A) BUT LARGER O.D.
6 GROOVE
17.0 MM BORE
38.5 BORE
55.0 MM O.D.

028-903-119T ( Audi A-4 & VW PASSAT )
5 GROOVE
56.1 MM O.D.
17.0 MM BORE
34.3 LONG

039-903-119 ( VW BEETLE 1.9 & Audi TT 3.2 )
5 GROOVE
42.5 MM LONG
17.0 MM BORE
61.0 MM O.D.

038-903-119A ( Audi A-4 1.9 Td , VW GOLF, VW JETTA
VW TRANSPORTER
34.5 mm Long
17.0 mm Bore
50 mm O.D.
6 Groove

038-903-119 AA is the correct # based on O.D.is Smaller

I Hope this help's

[Vincent Waldon]

Great info... thanks for posting!