94205SB Engine Timing Chain Kit for Chevy Cadillac GMC Hummer 2006 2017 12556582

This 9-4205SB Engine Timing Chain Kit is a complete timing chain replacement kit compatible with 2006-2017 Chevy, Cadillac, GMC, and Hummer models and matches OEM part number 12556582.

Product Overview

This Engine Timing Chain Kit replaces worn or stretched chains, tensioners, and guides in 2006-2017 GM vehicles. The kit includes all necessary components to restore precise camshaft timing, ensuring optimal engine performance and preventing chain-related engine damage. Designed for professional mechanics and experienced DIYers, this Engine Timing Chain Kit is essential for timing overhauls on high-mileage engines.

Key Features & Performance

• Complete kit includes timing chain, tensioner, guides, and sprockets
• Manufactured to OEM specifications for reliable fit and function
• Heat-treated chain links resist stretching under high loads
• Precision-ground sprocket teeth ensure smooth and quiet operation
• Direct replacement for factory timing components without modifications

Fitment & Compatibility

• 2006-2017 Chevrolet Silverado, Tahoe, Suburban, Avalanche (V8 engines)
• 2006-2017 Cadillac Escalade, CTS, STS (V8 engines)
• 2006-2017 GMC Sierra, Yukon, Yukon XL (V8 engines)
• 2006-2010 Hummer H2, H3 (V8 engines)

Common Uses

• Engine timing chain replacement during major service intervals
• Repairing timing chain rattle or startup noise on high-mileage engines
• Rebuilding GM LS-based V8 engines after timing component failure
• Preventive maintenance when replacing water pump or front cover gaskets

Technical Specifications

• Part Number(s): 9-4205SB, 12556582
• Chain Type: Single roller timing chain
• Kit Contents: Chain, tensioner, guides, sprockets, and hardware
• Material: High-carbon steel chain, reinforced nylon guides

Frequently Asked Questions

Q: Is this timing chain kit compatible with both active fuel management (AFM) and non-AFM engines? A: Yes, this kit is designed for GM V8 engines with or without AFM, but always confirm your engine’s timing component requirements before ordering.

Q: Does this kit include all gaskets and seals needed for installation? A: The kit includes the timing chain, tensioner, guides, and sprockets; front cover gaskets and a harmonic balancer bolt should be purchased separately for a complete job.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.