INA ZS-S1000 Engine Timing Camshaft Sprocket - Right

INA ZS-S1000 Timing Camshaft Sprocket

The INA ZS-S1000 is an engine timing camshaft sprocket built for OE-level fit and function in select Mazda applications. It is a direct replacement for the exhaust side on listed Mazda 3, CX-7, and Mazda 6 models.

Key Features

• Engine timing camshaft sprocket for the valve train
• Made from powdered metal, steel, or cast iron depending on application requirements
• Heat-treated to specified hardness for consistent durability
• OE-quality replacement from INA
• Cross-references INA Global Number 554 0552 100

Fitment Details

• Fits 2007-2013 Mazda 3, right, exhaust; Mazdaspeed
• Fits 2007-2012 Mazda CX-7, right, exhaust
• Fits 2006-2007 Mazda 6, right, exhaust; Mazdaspeed

Product Description

This engine timing camshaft sprocket is used to maintain proper camshaft timing on the exhaust side of the engine. The INA ZS-S1000 is engineered to meet OE quality and performance expectations, with material selection and heat treatment chosen to match the demands of timing system operation. If you are replacing a worn or noisy sprocket on a Mazda 3, Mazda CX-7, or Mazda 6, this part number provides a direct-fit service option for the listed right-side exhaust applications.

This part cross-references INA Global Number 554 0552 100 for the same application. Part number ZS-S1000 is also useful when searching for a Mazda 3 exhaust camshaft sprocket, Mazda CX-7 right exhaust timing sprocket, or Mazda 6 Mazdaspeed camshaft sprocket replacement.

Common Issues This Part May Address

• Excessive timing chain noise from a worn sprocket
• Camshaft timing irregularities caused by sprocket wear
• Rough engine operation related to valve timing mismatch
• Timing system service on high-mileage Mazda engines
• Replacement of a damaged exhaust camshaft sprocket

Installation Notes

Verify engine code, side, and exhaust-side placement before installation. Follow factory timing procedures, use the correct locking tools, and inspect related timing components such as the chain, guides, and tensioner while the system is open. Proper alignment is critical to avoid valve timing errors.

Quality Assurance

INA timing gears and sprockets are manufactured to OE-level standards using controlled materials and heat treatment processes for consistent performance in timing system service.