RB crank collar
RB crank collar
RB crank collar extends the contact drive surface for the oil pump gears, extending the oil pumps servicing life over the stock drive mechanism.
Crank collars are interference fit, and the crankshaft requires machine work for fitment.
The collar fits all RB engines.
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We will not refund if you simply changed your mind, found it cheaper somewhere else, decided you did not like the purchase or had no use for it.
But you can choose a refund or replacement if an item is found to be faulty.