Cloyes S997 Engine Timing Crankshaft Sprocket

Cloyes S997 Timing Crankshaft Sprocket

The Cloyes S997 is an engine timing crankshaft sprocket built for precise chain indexing and consistent timing control. It is a metal, single-mount sprocket with exact tooth geometry, a matched bore, and accurate offset and timing index for a proper fit in supported Volkswagen and Audi timing systems.

Key Features

• Engine timing crankshaft sprocket for inverted-tooth timing chain systems
• Metal construction for durability in high-load valve train service
• 23-tooth and 42-tooth design details listed for application-specific timing geometry
• 3-row chain configuration
• 1 timing mark for accurate alignment during service
• Inside diameter: 0.648 in. (16.48 mm)
• Outside diameter: 3.246 in. (82.46 mm)
• Width: 1.763 in. (44.79 mm)

Product Details

Cloyes timing crankshaft sprockets are precision-tooled to maintain correct timing relationship between the crankshaft, timing chain, tensioners, guides, and related sprockets. The S997 is engineered for supported Audi A3, A4, Q5, TT Quattro, and Volkswagen Jetta, Golf, GTI, Passat, Tiguan, and related models listed in the fitment data. This part number, S997, is a direct replacement-style timing component for service work where accurate tooth engagement and bore alignment matter.

This part cross-references 06K105209 and 06H105209AT for the same application.

Common Repair Uses

• Restoring correct cam-to-crank timing after timing chain service
• Replacing a worn or damaged crankshaft sprocket
• Addressing timing noise caused by chain drive wear
• Correcting timing index issues during engine repair
• Supporting full timing system refreshes on Audi and Volkswagen engines

Installation Notes

For timing system service, Cloyes recommends replacing the chain along with the tensioners, guides, and sprockets to maintain timing system integrity. Verify tooth count, bore size, chain type, and timing mark alignment before installation. Because this component is part of the engine’s timing system, careful indexing and proper service procedures are important during reassembly.

Quality Assurance

Cloyes has supplied automotive timing components since 1921 and backs its timing products with industry support and technical assistance. The S997 is built to the dimensional and timing requirements needed for reliable service in supported Audi and Volkswagen applications.

Compatible Vehicles

• Fits 2012-2025 Volkswagen Jetta, N/A
• Fits 2008-2010 Volkswagen Jetta, N/A
• Fits 2015-2021 Volkswagen Golf, N/A
• Fits 2008-2020 Audi A3, N/A
• Fits 2017-2020 Audi A4 allroad, N/A
• Fits 2009-2020 Audi A4 Quattro, N/A
• Fits 2010-2020 Audi A5 Quattro, N/A
• Fits 2018-2020 Audi A5 Sportback, N/A
• Fits 2015-2020 Audi Q3, N/A
• Fits 2011-2020 Audi Q5, N/A
• Fits 2015-2020 Audi S3, N/A
• Fits 2018-2020 Audi TT Quattro, N/A
• Fits 2009-2015 Audi TT Quattro, N/A
• Fits 2016-2020 Audi TTS Quattro, N/A
• Fits 2019-2020 Volkswagen Arteon, N/A
• Fits 2018-2020 Volkswagen Atlas, N/A
• Fits 2020 Volkswagen Atlas Cross Sport, N/A
• Fits 2008-2020 Volkswagen GTI, N/A
• Fits 2014-2020 Volkswagen Passat, N/A
• Fits 2008-2010 Volkswagen Passat, N/A
• Fits 2009-2020 Volkswagen Tiguan, N/A
• Fits 2015-2019 Audi A3 Quattro, N/A
• Fits 2009-2013 Audi A3 Quattro, N/A
• Fits 2009-2019 Audi A4, N/A
• Fits 2019 Audi Q7, N/A
• Fits 2012-2019 Volkswagen Beetle, N/A
• Fits 2017-2019 Volkswagen Golf Alltrack, N/A
• Fits 2015-2019 Volkswagen Golf R, N/A
• Fits 2015-2019 Volkswagen Golf SportWagen, N/A
• Fits 2012-2018 Audi A6, N/A
• Fits 2013-2018 Audi A6 Quattro, N/A
• Fits 2015-2018 Audi Q3 Quattro, N/A
• Fits 2017-2018 Volkswagen Tiguan Limited, N/A
• Fits 2009-2017 Volkswagen CC, N/A
• Fits 2013-2016 Audi allroad, N/A
• Fits 2009-2016 Volkswagen Eos, N/A
• Fits 2010-2014 Audi A5, N/A
• Fits 2009-2014 Audi TT, N/A
• Fits 2007 Audi TT, N/A
• Fits 2010 Volkswagen Passat CC, N/A
• Fits 2008-2009 Volkswagen Bora, N/A