The Metco Motorsports auxiliary idler kit for the Shelby GT500 is cleverly engineered to be a simple bolt on and to be the ultimate solution to belt slippage.

The kit consists of a heavy-duty, precision-machined aluminum plate that offers three locations for the included 90mm idler pulley. The plate bolts to existing bolt bosses on the vehicle and locates the pulley just to the left of the supercharger pulley, maximizing belt wrap and eliminating slippage. No modifications to the vehicle are necessary. The required fasteners are included, as well as illustrated installation instructions.

When this kit is installed with our popular MSP260 supercharger pulley, the original belt can be re-used.

Note: This auxiliary idler kit is also available with an extreme duty double-bearing idler pulley. Please see Metco Motorsports PN MSI-90D, also listed in this section.