This is the crankshaft oil seal (large) is for the flywheel end
on all VW T2 Bays fitted with the 1700,1800,2000cc Type 4 engine
and the VW T25 fitted with the 2000cc Aircooled
engine from 1979 to 1983 and
the 1900,2100cc watercooled engine from 1983 to 1992