Classic Austin Mini Water Pump Pulley Large 1985 And Later Oversize

Classic Austin Mini Water Pump Pulley Large 1985 And Later Oversize

Classic Austin Mini Water Pump Pulley Large 1985 And Later Oversize
Qty:
$109.95
Part No: CAM6408
Only 1 Left in Stock!
Internet Price $109.95
Alternate Products
Classic Austin Mini Oversized Water Pump Pulley 4.2 Inch For Small Bore Motor
$99.95 Classic Austin Mini Oversized Water Pump Pulley 4.2 Inch For Small Bore Motor
Reduction of cavitation in the water jacket is achieved by using a large diameter water pump pulley.  Originally fitted to the Cooper S and reintroduced on the A-Plus engines, this oversize water pump pulley is stock on late model cars but will fit all models. Designed to reduce the horsepower drain and slow the water moving through the radiator to allow it time to cool - very important for the higher RPMs we run today. This oversize pulley is 4.75" diameter. Use of a high capacity water pump also helps to reduce cavitation in the water jacket, particularly at high RPM, as well as circulating a greater volume of coolant.  It is necessary to check clearance between the large pulley and the head; if a lot of material has been machined from the head face (the head has been surfaced too many times) it may foul the pulley.

Small bore engines with 12G940 heads can't use this pulley. Instead see CAM116.
Recommended items for: CAM6408
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Related Technical Articles:
Classic Mini Cooper Engine Pulleys & Fan Belts page 38
Created: January 10, 2019
Crankshaft pulley with vibration dampers, water pump pulleys, fan pulleys are all itemized on this page, stock and high performance versions. Fan belt listings are also shown.
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