Lately we have seen several stock Crank Pullies or Harmonic Balancers on the 02-06 MINI
Cooper S R53. Now there is a new choice rather than the OEM one that
failed, and this isn't a lightweight Aluminum pulley that has NO
dampening, so this won't wear out your crank bearings. Helping your
engine last. This Super Damper designed a 5.5” damper -- Part # 917992
-- for the Mini Cooper standard and S engines. This new design is a
direct replacement for the stock OEM Mini Cooper and Mini Cooper S
damper from 2001 through 2006. The heart of this unit is the tried and
true “damper within a damper” design that has put ATI ahead of the
rest. The outer shell has been machined to allow OEM serpentine belt
locations, and includes laser-etched timing marks. 
Eliminates torsional crankshaft vibrations
Exceeds SFI 18.1 specs
Laser etched 360° timing marks
Black zinc chromate finished
This damper is slightly lighter than the OEM 05-06, and almost
2lbs lighter than the 02-04 crank pulley, and it will dampen better
than stock.
NEW OVERDRIVE WMW EXCLUSIVE
WMW Now offers a 2% Overdrive size. This will allow you to spin
the supercharger slightly faster without giving up the engine damper.
All the other oversized crank pullies on the market do away with the
engine damper. This can cause extra wear on the bearings or oil pump
causing reduced engine life. See detailed picture below of a failed
stock pulley.
WMW recommends replacing the crank bolt anytime it is removed. We do have them in stock HERE
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