Product Description
Michigan Motorsports LS Single-Bolt Timing Chain Kit with Cam Gear and Crank Sprocket – Replaces 12591689 Cam Gear
For Compatible Non-VVT LS Engines with a Single-Bolt Camshaft and 58-Tooth Reluctor Configuration
Refresh your LS engine's timing components with this single-bolt timing chain kit, featuring a replacement camshaft gear, crankshaft sprocket and heavy-duty timing chain. The cam gear replaces GM part number 12591689 and is intended for compatible non-VVT LS engines using a single-bolt camshaft and 58-tooth reluctor configuration. The upgraded chain is manufactured with higher tensile strength to support timing accuracy and longevity, making this package a practical choice during camshaft installations, engine modifications or timing-system service, particularly on higher-mileage engines.
Key Features & Benefits
- Single-Bolt Replacement Cam Gear: Includes a camshaft sprocket that replaces GM part number 12591689. The single-bolt mounting configuration is intended for the corresponding non-VVT LS camshaft application, providing a specific replacement reference when servicing the engine's timing components.
- Heavy-Duty Timing Chain: The upgraded LS timing chain is manufactured to a higher tensile strength for improved accuracy and longevity. It provides a replacement option for the factory chain when completing a camshaft installation or other work that exposes the timing assembly.
- Crankshaft Sprocket Included: Supplied with a crank sprocket alongside the cam gear and timing chain. Having all three components together simplifies gathering the main timing-drive parts for service on a compatible single-bolt, non-VVT LS engine.
- Non-VVT LS Application: Intended for compatible 4.8L, 5.3L, 6.0L and 6.2L LS configurations, including the listed LS3, LS4 and LSA applications. Fitment requires the specified single-bolt camshaft arrangement and 58-tooth reluctor configuration.
- Convenient Camshaft-Service Upgrade: Replacing the timing chain while it is already accessible allows you to address an aging factory component during the same project. This is particularly useful for higher-mileage engines undergoing camshaft changes or other engine modifications.
Kit Includes
- Single-Bolt Camshaft Timing Gear – Replaces GM 12591689
- Crankshaft Sprocket
- Heavy-Duty Timing Chain
Key Fitments
Applications below are limited to compatible non-VVT LS engines with a single-bolt camshaft and 58-tooth reluctor configuration.
- CADILLAC CTS-V 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 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
- PONTIAC G8 2008-2009
- PONTIAC GRAND PRIX 2007-2008
- SAAB 9-7X 2007-2009
