INA ZT-8442 Engine Balance Shaft Chain Tensioner

Engine Balance Shaft Chain Tensioner for Ford Applications

INA ZT-8442 is an engine balance shaft chain tensioner for timing-drive repair work where correct chain control matters. It is built for select Ford, Mercury, Mazda, and Land Rover applications, including Explorer, Ranger, Mustang, and Mountaineer models.

• Engine balance shaft chain tensioner for timing drive service
• Supports proper gear ratio control in chain-driven engine systems
• OE-style repair solution from INA
• Cross-references INA Global Number 551 0342 100
• Part number: ZT-8442

Fitment Details

• Fits 1997-2010 Ford Explorer, N/A
• Fits 2007-2010 Ford Explorer Sport Trac, N/A
• Fits 2001-2005 Ford Explorer Sport Trac, N/A
• Fits 2005-2010 Ford Mustang, N/A
• Fits 2001-2010 Ford Ranger, N/A
• Fits 1998-2010 Mercury Mountaineer, N/A
• Fits 2001-2009 Mazda B4000, N/A
• Fits 2005-2007 Land Rover LR3, N/A
• Fits 2001-2003 Ford Explorer Sport, N/A

What This Part Helps Address

• Timing chain slack in the balance shaft drive
• Noise from a worn or weak chain tensioner
• Inconsistent chain control in the engine timing system
• Service needs during timing-drive repair on Ford Explorer and Ranger engines
• Wear-related issues in high-mileage chain components

Installation Notes and Tips

Verify engine code and timing-drive configuration before ordering. This part number, ZT-8442, is listed for multiple model years and platforms, so matching the original tensioner design is important during service. Follow factory timing procedures and inspect related chain-drive components at the same time.

Quality Assurance

INA supplies repair solutions for chain and belt drive components with an emphasis on correct gear ratios, reliable operation, and low maintenance requirements. This part cross-references INA Global Number 551 0342 100 for the same application.