Controls the tension of the serpentine belt.
Alternator / Water Pump
Controls the tension of the serpentine belt.
Alternator / Water Pump
Increasing crank pulley will add just that little extra added supercharger boost
Controls the tension of the serpentine belt
Main drive belt that connects to the main pulley
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6PK-1388 : Alternator / Water Pump : Not for models with John Cooper Works kit
Helps route the serpentine belt
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Complete accessory belt pulley change
Not for John Cooper Works kit
Complete accessory belt pulley change
For John Cooper Works kit
Complete accessory belt pulley change - Cooper S (NON JCW Kit)
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Not for John Cooper Works kit
This product was last offered at the strikethrough price on
08-12-2026
Main drive belt that connects to the main pulley
Pulls pressed on 1 and 2 groove pulleys on alternators and power steering pumps.
To remove the vibration damper off the crankshaft
Helps maintain proper dampening on the hydraulic belt tensioner
Used to pull back the tensioner to remove belts
Standard diameter, lightweight Direct Replacement Crank Pulley for the always popular Gen 1 MINI
Controls the tension of the serpentine belt.
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Holds the crankshaft, useful in timing chain service or crank bolt