Cloyes S845 Engine Timing Crankshaft Sprocket - Outer

Cloyes S845 Timing Crankshaft Sprocket

The Cloyes S845 is an engine timing crankshaft sprocket built for specific Toyota, Pontiac, and Chevrolet applications. It features a helical tooth form for quieter operation and a precision-machined bore for a true fit in timing system service.

Key Features

• Metal construction for engine timing service
• 18-tooth design with a 1.86" outside diameter
• 1-row chain design with a 0.16" tooth width
• Precision-machined 0.98" inside diameter for accurate fit
• Keyway notch included for proper crankshaft indexing
• Specific-fit design for confirmed vehicle applications

Detailed Description

Cloyes S845 is an engine timing crankshaft sprocket used in timing system repair and rebuild work where accurate chain engagement matters. Cloyes designs its timing gears and sprockets with CAD-based engineering and advanced materials, then tests each part for function and durability. This sprocket is listed for outer position applications on 1998-2008 Toyota Corolla, 2003-2008 Toyota Matrix, 2000-2005 Toyota Celica, 2000-2005 Toyota MR2 Spyder, 2003-2008 Pontiac Vibe, and 1998-2002 Chevrolet Prizm. If you are servicing a Toyota Corolla timing system or replacing a crankshaft sprocket on a Toyota Matrix, the S845 provides the specified fit and tooth geometry for those applications. This part cross-references 135210D010 and 94859218 for the same application.

What It Is Used For

• Replacing a worn or damaged timing crankshaft sprocket
• Restoring proper chain engagement in the engine timing system
• Addressing timing noise caused by sprocket wear or tooth damage
• Correcting fitment issues during Toyota Corolla, Matrix, Celica, MR2 Spyder, Pontiac Vibe, or Chevrolet Prizm timing service
• Supporting engine rebuilds that require a specific-fit outer sprocket

Installation Notes and Tips

Verify the outer-position application before installation and confirm the sprocket matches the engine’s timing components. Cloyes recommends replacing the chain tensioner, sprocket, and guide components together when the timing chain is serviced, since these parts work together to keep the chain properly aligned and tensioned. Check the bore, keyway notch, and tooth count against the original part before assembly.

Quality Assurance

Cloyes manufactures timing components with advanced materials and application-focused engineering, then tests them for function and durability. The S845 is built for specific-fit timing service and is intended to deliver consistent performance in engine rebuild and replacement work.