Upgraded Weistec Idler Pulley Kit
Upgraded Weistec Idler Pulley Kit
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
07-15-2026
Custom Modified for Higher Belt Tension
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.
Replacement Belt for Weistec Stage 1 & 2 M156 Supercharger Systems
The solution to a noisy, failing pulley
At Water Pump - Grooved - Also Used Between Refrigerant Compressor And Vibration Damper (Up To Engine 60057841)
Includes accessory belt, belt tensioner assembly and idler pulleys
10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
05-02-2026
Includes tensioner and pulley. OEM Supplier!
This product was last offered at the strikethrough price on
04-11-2026
21.36x2360
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
07-15-2026
Replacement Belt for Weistec Stage 3 M156 Supercharger Systems
21.36x2360
We Price Match - Give Us A Call or Chat!
This product was last offered at the strikethrough price on
05-12-2026
Includes tensioner and pulley
2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
The solution to a noisy, failing pulley
At Water Pump - Smooth - Also Used Between Refrigerant Compressor And Vibration Damper (From Engine 60057842)
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
02-19-2026
The solution to a noisy, failing pulley
2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
At Water Pump - Smooth - Also Used Between Refrigerant Compressor And Vibration Damper (From Engine 60057842)
This product was last offered at the strikethrough price on
05-09-2026
21.36x2360
This product was last offered at the strikethrough price on
05-07-2026
All Weistec idler pulleys run this same high quality bearing.