Since 1921, Cloyes has been the trusted leader in automotive timing systems. As a critical component of the engine's timing system, the camshaft sprockets work in unison with the timing chain, tensioners, guides, and other sprockets, to ensure precise timing. Cloyes engine timing crankshaft sprockets are precision-tooled with exact tooth geometry and a perfectly matched bore for superior fit, reliability, and long-term performance. To ensure total timing system integrity, Cloyes recommends replacing the chain along with the tensioners, guides, and sprockets during service. Trusted by professionals for over a century & backed by an industry-leading warranty and technical support.

• Features precision-tooled tooth form, bore, off-set and timing index for superior fit, reliability, and long-term performance in engine timing repairs
• CAD designed and manufactured using premium materials and heat-treated for OE-level fit and function, allowing for smooth installation and reliable performance
• Each part is extensively tested for function, fitment, and durability to ensure consistent quality and optimal performance, reducing the risk of comebacks
• Available in application-specific kit or as a stand-alone product, offering installation flexibility and convenience
• Backed by Limited Lifetime Warranty and over 100 years in engineering leadership with unmatched technical support and repair confidence in every component

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Application Summary:

Year	Make/Model
1999-2005	Chevrolet Astro
1999-2005	Chevrolet Blazer
1999-2002	Chevrolet C1500
1999-2007	Chevrolet Express 1500
1999-2005	Chevrolet Express 2500
1999	Chevrolet P30
1999-2004	Chevrolet S10
1999-2006	Chevrolet Silverado 1500
2007	Chevrolet Silverado 1500 Classic
1999-2005	GMC Jimmy
1999	GMC P3500
1999-2005	GMC Safari
1999-2007	GMC Savana 1500
1999-2005	GMC Savana 2500
1999-2006	GMC Sierra 1500
2007	GMC Sierra 1500 Classic
1999-2004	GMC Sonoma
1999-2001	Oldsmobile Bravada