This high-performance timing chain set for GM Gen III/IV LSx engines is manufactured with higher tensile strength for improved accuracy, durability, and longevity. It’s ideal for camshaft upgrades, performance modifications, or routine replacements—especially on higher-mileage engines where the factory chain may be worn.
 
Kit Includes:
Single Bolt Timing Cam Gear – Replaces GM #12591689 (1-Bolt, 58 Tooth Reluctor Wheel)
Crank Sprocket – Replaces GM #12556582
Timing Chain Tensioner Kit – Includes Retainer and Bolt, Replaces GM #12626407
Heavy Duty Timing Chain – Replaces GM #12646386
 
Key Features:
Direct replacement for LS3 engines with a single bolt sprocket and 58 tooth reluctor wheel
Heavy-duty chain designed to handle higher horsepower applications
Perfect upgrade for performance builds or preventative maintenance
 
Fitment Guide (including but not limited to):
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 1500/2500/3500 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 1500/2500/3500 2008-2009
GMC SIERRA 1500 2007-2009
GMC YUKON / 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
 
Warranty & Policies
Warranty: Included (subject to correct fitment)
Returns: Not accepted if the customer ordered the wrong item. Please verify compatibility before purchasing.