Product Description
Michigan Motorsports Single Bolt Timing Cam Gear – 58 Tooth
Fits 2007–2014 GM LS Engines with 58X Reluctor | Replaces GM 12591689
The Michigan Motorsports Single Bolt Timing Cam Gear is a precision-engineered replacement designed for GM LS engines equipped with a 58-tooth crank reluctor and single-bolt camshaft. Required for proper camshaft timing and crank/cam signal synchronization on later-model LS platforms, this cam sprocket replaces GM part number 12591689 and is ideal for timing chain service, camshaft upgrades, or engine rebuilds. Manufactured to OEM-style specifications, it ensures reliable sensor accuracy, correct valve timing, and long-term durability in both stock and performance applications.
Key Features & Benefits
- Ensures Correct Cam & Crank Signal Synchronization: Precisely machined 58-tooth profile maintains proper camshaft indexing on engines using a 58X reluctor wheel, preventing timing errors and sensor-related drivability issues.
- Correct Single-Bolt Camshaft Compatibility: Designed specifically for single-bolt LS camshafts used in 2007–2014 applications, eliminating fitment issues caused by earlier three-bolt sprockets.
- Direct Replacement for GM 12591689: OEM-style replacement restores factory cam timing geometry and is ideal anytime the timing set is serviced or the camshaft is replaced.
- Prevents Timing Chain & Sensor Issues: Proper tooth profile and alignment help prevent chain noise, premature wear, and cam/crank correlation faults during operation.
- Michigan Motorsports Performance-Grade Quality: Built to handle the demands of stock rebuilds and performance cam upgrades while maintaining OEM-level reliability.
Key Fitments
- 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
