This is a direct factory replacement for the original spring loaded coupler (also called an Isolator) in your 2009-2015 LS9 or LSA Engine. This part is made by EATON, and is a recommended upgrade over the spring-loaded coupler originally used in the LSA supercharger in the Cadillac CTS-V and Chevy Camaro ZL1, and the LS9 supercharger in the Corvette ZR1.
Beware of knock-off parts that may look similar, and aftermarket couplers that claim to be an “upgrade”. They have looser tolerances, are made from softer material, and will rattle from the moment they are installed. Aside from being annoying, these will wear out your gears and bearings and eventually lead to a full rebuild. Only the genuine Eaton part has gone through the rigorous testing required to meet the OE spec, and withstand the high-rpm and load in your GM/Eaton supercharger. Can you save a few bucks by buying an aftermarket coupler? Sure, but a rebuild will cost you hundreds. Save yourself the headache and buy the genuine part.
The supercharger coupler mates the front drive cover (also called the nose drive) to the gears that spin the supercharger rotors. It isolates the gears and rotors from vibrations and shocks from throttle load that would otherwise chew up the supercharger gears or damage the rotors.
If your coupler is failing, it will sound like there are rocks rattling around in your supercharger at idle, but the noise will soften up at speed. Replace worn couplers as soon as possible, before they start to damage the supercharger internals.
- 2011 Chevrolet Camaro SS/ZL1
- 2012 Chevrolet Camaro SS/ZL1
- 2013 Chevrolet Camaro SS/ZL1
- 2014 Chevrolet Camaro SS/ZL1
- 2015 Chevrolet Camaro SS/ZL1
- 2009 Chevrolet Corvette Base/Z06/ZR1
- 2010 Chevrolet Corvette Base/Z06/ZR1
- 2011 Chevrolet Corvette Base/Z06/ZR1
- 2012 Chevrolet Corvette Base/Z06/ZR1
- 2013 Chevrolet Corvette Base/Z06/ZR1
- 2009 Cadillac CTS-V
- 2010 Cadillac CTS-V
- 2011 Cadillac CTS-V
- 2012 Cadillac CTS-V
- 2013 Cadillac CTS-V
- 2014 Cadillac CTS-V
- 2015 Cadillac CTS-V