To pry back the tensioner in order to change the belt
To pry back the tensioner in order to change the belt
Complete accessory belt pulley change - Cooper S (NON JCW Kit)
10X Entries For Our 25th Anniversary Sweepstakes!
Not for John Cooper Works kit
Complete accessory belt pulley change - Cooper S (NON JCW Kit)
10X Entries For Our 25th Anniversary Sweepstakes!
Not for John Cooper Works kit
Controls the tension of the serpentine belt.
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Used to pull back the tensioner to remove belts
Main drive belt that connects to the main pulley.
6PK-1388 : Alternator / Water Pump : Not for models with John Cooper Works kit
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
03-05-2026
Helps route the serpentine belt
Helps maintain proper dampening on the hydraulic belt tensioner
Helps route the serpentine belt
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Main drive belt that connects to the main pulley
6PK-1374 : Alternator / Water Pump : For John Cooper Works kit
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
07-17-2026
Features Gates FleetRunner Heavy-Duty serpentine belt for added dependability
6PK-1388 : Alternator / Water Pump : Not for models with John Cooper Works kit
This product was last offered at the strikethrough price on
05-07-2026
For use with 16% Pulley System: Supercharger Pulley
This product was last offered at the strikethrough price on
05-07-2026
Main drive belt that connects to the main pulley
We Price Match - Give Us A Call or Chat!
6PK-1374 : Alternator / Water Pump : For John Cooper Works kit
This product was last offered at the strikethrough price on
02-01-2026
For Boost Upgrade System: Dinan Pulley Installed
M10X70
Main drive belt that connects to the main pulley
6PK-1388 : Alternator / Water Pump : Not for models with John Cooper Works kit