Cloyes S913 Engine Timing Crankshaft Sprocket - Outer

Cloyes S913 Timing Crankshaft Sprocket

The Cloyes S913 is a specific-fit engine timing crankshaft sprocket for applications that require precise chain engagement and stable timing operation. It is built with a helical tooth form for quieter running and a precision-machined bore for accurate fit during engine rebuilds or timing system replacement.

Key Features

• Engine timing crankshaft sprocket for single-row timing chain systems
• Metal construction with gray finish
• 29-tooth design with 0.16" tooth width
• Precision-machined 1.26" inside diameter for true fit
• Helical tooth form supports quieter operation
• Keyway notch included for proper crankshaft indexing
• Specific fit replacement for select GM and Isuzu applications

Product Details

Cloyes S913 is engineered as a timing system component for the crankshaft side of the engine. Cloyes designs its timing gears and sprockets using CAD-based development and advanced materials, then tests each part for function and durability. This sprocket is used in timing service where accurate chain tracking, bore alignment, and tooth profile matter for consistent engine operation. This part cross-references 24100061 for the same application.

Compatible With 2004-2012 Chevrolet Colorado, Outer; 2004-2012 GMC Canyon, Outer; 2006-2010 Hummer H3, Outer; 2009-2010 Hummer H3T, Outer; 2002-2009 Chevrolet Trailblazer, Outer; 2002-2009 GMC Envoy, Outer; 2005-2009 Saab 9-7x, Outer; 2003-2008 Isuzu Ascender, Outer; 2007-2008 Isuzu i-290, Outer; 2007-2008 Isuzu i-370, Outer; 2004-2007 Buick Rainier, Outer; 2002-2006 Chevrolet Trailblazer EXT, Outer; 2002-2006 GMC Envoy XL, Outer; 2006 Isuzu i-280, Outer; 2006 Isuzu i-350, Outer; 2004-2005 GMC Envoy XUV, Outer; 2002-2004 Oldsmobile Bravada, Outer.

What It Helps Address

• Timing chain noise caused by worn sprocket teeth
• Chain tracking issues from bore wear or poor fit
• Crankshaft timing alignment problems during rebuilds
• Premature timing component wear when replacing only one part of the system
• Service needs on Chevrolet Colorado, GMC Canyon, and related GM/Isuzu platforms

Installation Notes

Replace the chain tensioner, sprockets, and guides together when servicing the timing chain system. Cloyes recommends renewing these related components at the same time because they work together to keep the chain properly tensioned and aligned. Verify application details by engine and position before installation, and confirm the keyway notch and bore dimensions match the original part.

Quality Assurance

Cloyes manufactures this sprocket with CAD-designed engineering, advanced materials, and durability testing to support reliable timing service. The part is built for specific-fit applications and is intended for engine rebuilds and standard replacement work where accurate timing system performance is required.