Installed the best supercharger belt you can buy, the Gates RPM series. RPM standing for: Racing – Performance – Muscle.
As I am driving with a stock setup (stock supercharger pully & stock crankshaft pulley), the correct belt is the K080507RPM. I also made some comparison pictures, as I seem to have collected all the Gates belts!
- Mercedes Benz Gates OEM / A1139970192
- Gates Fleetrunner / 8PK1289HD
- Gates Fleetrunner HD Green / K080510HD
- Gates RPM / K080507RPM 8PK1289
The RPM belt seems to have the most “grippy” material.