We are a fully operational machine shop that has specialized in Eaton Superchargers and components since 2003! Now it's your chance to buy direct from the manufacturer! What does that mean to you as a customer? It means a price that cannot be beat for a quality that cannot be matched. The OEM coupler is made from a material that is susceptible to failure. If you hear a rattling coming from your supercharger, this may be the culprit. Made from high quality Nylon Made in the USA Fits the folowing vehicles: 05-07 Chevy Cobalt SS 04-07 Saturn Ion Redline 2003 Ford Mustang Cobra Ford F150 Lightning 2010-16 Jaguar Range Rover, 5.0 engine only All supercharger Nissan Xterra and Frontiers All Supercharged Holden Commodores (Australian) 97-07 Pontiac Grand Prix 91-05 Buick Park Ave 04-05 Chevrolet Monte Carlo 04-05 Chevrolet Impala 97-04 Buick Regal 92-03 Pontiac Bonneville 95-99 Buick Riveria 96-99 Oldsmobile LSS Works on most Magnuson, Roush, TRD M & MP Series Superchargers also M45 Mercedes Benz with the non-clutch type supercharger M45 on Toyota Tacoma