AHM alloy water pump pulley & crank pulley

Water pump pulley is larger then standard to slow the pump at higher rpm

AHM Boxer 16v alloy water pump pulley & crank pulley

Water pump pulley is larger then standard to slow the pump at higher rpm

This pulley set must be used with our Trigger wheel that fits between the to cam belt drive pulleys  as this adds approx 1 mm to the crank pulley offset.

Or of course you can make your own wider spacer to suit.