Remove and install OAD alternator pulleys
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
05-02-2026
Remove and install OAD alternator pulleys
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
05-02-2026
Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt.
10X Entries Into Our F80 M3 Sweepstakes
Eliminate weak factory plastic idlers with the UPD M156 Billet Idler Set - a high-strength CNC aluminum upgrade built for smoother operation, extreme durability, and long-term AMG reliability.
Upgrade your AMG’s reliability with UPD’s billet idler kit - built to outlast factory plastic pulleys and handle the heat without compromise.
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
09-04-2026
Includes One (1) Drive Belt, One (1) Drive Belt Tensioner, and Two (2) Drive Belt Idler Pulleys.
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Upgrade your M157 AMG with the UPD Billet Idler Kit - CNC-machined aluminum pulleys built to eliminate factory plastic idler failures and deliver lasting performance and reliability.
This product was last offered at the strikethrough price on
05-10-2026
Includes accessory and supercharger belt idler pulleys
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This product was last offered at the strikethrough price on
08-11-2026
This wrench offers a T50 head with a 33-splined sleeve that fits snugly into your alternator bolt.
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
05-02-2026
Includes accessory belt, supercharger belt, belt tensioner assemblies and idler pulleys
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
05-02-2026
Includes tensioner and pulley
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
09-04-2026
Replacement of failed pulley instantly restores proper timing mark position and control of crank vibration
OEM Supplier! Does not include new mounting bolt
This product was last offered at the strikethrough price on
08-13-2026
Includes tensioner and pulley
We Price Match - Give Us A Call or Chat!
This product was last offered at the strikethrough price on
03-30-2026
Used as a vibration absorber as well as supplying power to the accessory drive system
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
09-04-2026
Unlock faster turbo spool, sharper throttle response, and hidden horsepower with the UPD M157 Underdrive Crank Pulley - a precision billet upgrade built to maximize AMG performance and reliability.
This product was last offered at the strikethrough price on
05-10-2026