INA ZC-9-4305 Engine Timing Chain

INA Engine Timing Chain for Mazda Applications

INA ZC-9-4305 is a roller-style engine timing chain built for valve train service where precise camshaft and crankshaft synchronization matters. It is engineered to meet or exceed OE quality and performance expectations, with heat-treated plates and pins for controlled hardness and durability.

Compatible With Mazda 3, Mazda CX-7, and Mazda 6 applications listed below, this timing chain supports primary timing drive service on Mazdaspeed and standard configurations where specified.

Key Features

• Roller chain design for engine timing service
• 138-link chain construction
• Heat-treated plates and pins for durability
• OE-quality replacement from INA
• Part number: ZC-9-4305

Detailed Description

INA ZC-9-4305 is an engine timing chain for valve train repair and replacement. The roller chain design and 138-link count make it a direct-fit timing component for specific Mazda engines, including Mazda 3, Mazda CX-7, and Mazda 6 models listed in the fitment data. This part cross-references INA Global Number 553 0635 100 for the same application.

For buyers searching for a Mazda 3 timing chain, Mazda CX-7 timing chain, or Mazda 6 timing chain, this INA part provides a service replacement built around OE-level fit and function. The chain plates and pins are heat treated to precise hardness to support consistent timing operation under engine load.

What This Part Helps Address

• Excessive timing chain wear
• Chain stretch affecting cam timing
• Noise from a worn timing drive
• Timing correlation faults related to chain condition
• Service replacement during engine timing repair

Installation Notes and Tips

Install only on the confirmed applications listed in the fitment data. Timing chain service requires accurate engine timing alignment, inspection of related valve train components, and verification of chain routing before startup. Replace worn guides, tensioners, and related timing components as needed during service.

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

Quality Assurance

INA timing chains are manufactured to OE-quality standards, with heat-treated chain plates and pins for controlled hardness and durability. Part number ZC-9-4305 is built for dependable timing service in the listed Mazda applications.