Cloyes S1110 Engine Balance Shaft Sprocket

Cloyes S1110 Balance Shaft Sprocket

The Cloyes S1110 is an engine balance shaft sprocket built for precise timing-system alignment and dependable operation. It is a metal, single-row roller-chain sprocket with 20 teeth, a keyed bore, and a matched offset and timing index for accurate fitment in supported GM applications.

For Chevrolet Silverado 1500 and GMC Sierra 1500 service, this balance shaft sprocket is engineered to match the geometry needed for proper chain engagement and long-term drivetrain consistency. Cloyes has supplied timing components since 1921, and the S1110 reflects that focus on exact tooth form and system-level accuracy.

Key Features

• Part number: S1110
• Engine balance shaft sprocket for timing-system service
• Metal construction for durability
• 20-tooth design with single-row roller chain compatibility
• Keyway notch: Yes
• Timing mark quantity: 1
• Inside diameter: 0.506 in (12.8524 mm)
• Outside diameter: 2.085 in (52.959 mm)
• Width: 0.464 in (11.7856 mm)

Detailed Description

Cloyes Balance Shaft Sprocket S1110 is precision-tooled for applications where the balance shaft sprocket is part of, or adjacent to, the engine timing system. The exact tooth geometry, bore, offset, and timing index are designed to support accurate chain engagement and consistent operation. This part cross-references AMS Automotive S1110 and OE reference 12690616 for the same application.

Compatible With 2014-2021 Chevrolet Silverado 1500, N/A balance shaft sprocket service; 2018-2021 Chevrolet Express 2500, N/A balance shaft sprocket service; 2018-2021 Chevrolet Express 3500, N/A balance shaft sprocket service; 2018-2021 GMC Savana 2500, N/A balance shaft sprocket service; 2018-2021 GMC Savana 3500, N/A balance shaft sprocket service; and 2014-2021 GMC Sierra 1500, N/A balance shaft sprocket service.

What It Helps Address

• Worn or damaged balance shaft sprocket teeth
• Chain indexing concerns in the timing system
• Noise or irregular operation from a worn sprocket interface
• Service replacement for balance shaft drive components
• Restoration of proper chain-to-sprocket engagement

Installation Notes and Tips

During timing-system service, Cloyes recommends replacing the chain along with the tensioners, guides, and sprockets to maintain total system integrity. Verify tooth count, bore, offset, and timing index before installation. Confirm vehicle application by year, make, and model, including Chevrolet Silverado 1500, GMC Sierra 1500, and other listed GM vans and trucks.

Quality Assurance

Cloyes has been a trusted timing-system manufacturer since 1921. The S1110 balance shaft sprocket is backed by Cloyes technical support and an industry-leading warranty.