INA ZS-S845 Engine Timing Crankshaft Sprocket

INA Engine Timing Crankshaft Sprocket ZS-S845

The INA ZS-S845 engine timing crankshaft sprocket is built for OE-level timing system service on select Toyota, Pontiac, and Chevrolet applications. It is a direct-fit timing gear replacement for vehicles such as the Toyota Corolla, Toyota Matrix, Toyota Celica, Toyota MR2 Spyder, Pontiac Vibe, and Chevrolet Prizm.

Key Features

• Engine timing crankshaft sprocket for valve train service
• Made from powdered metal, steel, or cast iron depending on application design
• Heat-treated to exact hardness specifications for consistent wear characteristics
• Built to meet or exceed OE quality and performance targets
• INA part number ZS-S845 for catalog and service identification

Fitment Details

• Fits 2003-2008 Pontiac Vibe, N/A
• Fits 1998-2008 Toyota Corolla, N/A
• Fits 2005-2006 Toyota Corolla, N/A; HO
• Fits 2003-2008 Toyota Matrix, N/A
• Fits 2003-2006 Toyota Matrix, N/A; HO
• Fits 2000-2005 Toyota Celica, N/A
• Fits 2000-2005 Toyota Celica, N/A; HO
• Fits 2000-2005 Toyota MR2 Spyder, N/A
• Fits 1998-2002 Chevrolet Prizm, N/A

What This Part Helps Address

• Worn or damaged crankshaft sprocket teeth
• Timing chain or belt drive noise caused by sprocket wear
• Incorrect cam/crank synchronization from a deteriorated timing gear
• Service replacement needs during engine timing repair
• Restoration of proper timing system operation on Toyota Corolla and Toyota Matrix applications

Installation Notes

Verify engine code and timing system configuration before installation, especially on HO and non-HO applications. Inspect related timing components, including the chain or belt, guides, tensioner, and seals, during service. Confirm alignment marks and torque specifications from the vehicle service manual before final assembly.

Quality Assurance

INA timing gears and sprockets are manufactured to OE-quality standards using durable metal construction and controlled heat treatment for consistent hardness. This part cross-references INA Global Number 554 0161 100 for the same application.