This Kit Contains:
Single Bolt Timing Cam Gear, replaces 12591689 1-Bolt 58 Tooth Reluctor Wheel
Crank Sprocket 12556582
Tensioner Kit with Retainer and Bolt 12626407
Heavy Duty Timing Chain - Replaces 12646386

This high performance timing chain for the GM Gen III/IV LSx engine is manufactured to a higher tensile strength for greater accuracy and longevity. We recommend replacing your factory chain with this upgraded version when doing camshaft installations or other modifications where the chain is easily accessed, especially on higher mileage engines.

Single bolt sprocket for LS3 engines with 58 tooth reluctor wheel

Fitment guide for these and more:

BUICK ALLURE 2008-2009
BUICK LACROSSE 2008-2009
BUICK RAINIER 2007
CADILLAC CTS 2007-2015
CHEVROLET AVALANCHE 2007-2009
CHEVROLET CAMARO 2010-2015
CHEVROLET CAPRICE 2011-2017
CHEVROLET COLORADO 2009
CHEVROLET CORVETTE 2007-2013
CHEVROLET EXPRESS 1500 2008-2009
CHEVROLET EXPRESS 2500 2008-2009
CHEVROLET EXPRESS 3500 2008-2009
CHEVROLET IMPALA 2007-2009
CHEVROLET MONTE CARLO 2007
CHEVROLET SILVERADO 1500 2007-2009
CHEVROLET SS 2014-2017
CHEVROLET SUBURBAN 1500 2007-2009
CHEVROLET TAHOE 2007-2009
CHEVROLET TRAILBLAZER 2007-2009
GMC CANYON 2009
GMC ENVOY 2007-2009
GMC SAVANA 1500 2008-2009
GMC SAVANA 2500 2008-2009
GMC SAVANA 3500 2008-2009
GMC SIERRA 1500 2007-2009
GMC YUKON 2007-2009
GMC YUKON XL 1500 2007-2009
HUMMER H3 2008-2009
HUMMER H3T 2009
PONTIAC G8 2008-2009
PONTIAC GRAND PRIX 2007-2008
SAAB 9-7X 2007-2009