Since 1921, Cloyes has been the trusted leader in automotive timing systems. As a critical component of the engine's timing system, the crankshaft 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, off-set and timing index 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
1975	Oldsmobile 98
1975	Oldsmobile Custom Cruiser
1975	Oldsmobile Delta 88
1959-1978	Pontiac Bonneville
1959-1978	Pontiac Catalina
1967-1970	Pontiac Executive
1967-1979	Pontiac Firebird
1973-1975	Pontiac Grand Am
1975-1977	Pontiac Grand LeMans
1962-1977	Pontiac Grand Prix
1971-1978	Pontiac Grand Safari
1971-1975	Pontiac Grandville
1964-1973	Pontiac GTO
1976-1977	Pontiac Laurentian
1963-1977	Pontiac LeMans
1976-1977	Pontiac Parisienne
1959-1966	Pontiac Star Chief
1961-1970	Pontiac Tempest
1960-1961	Pontiac Ventura