INA ZT-8441 Engine Timing Chain Tensioner

Engine Timing Chain Tensioner for Ford and Mazda

INA ZT-8441 is an engine timing chain tensioner for primary timing drive applications. It is built for vehicles that rely on accurate chain control to maintain correct valve timing, stable power delivery, and consistent engine operation.

• Engine timing chain tensioner for primary timing drive service
• INA Global Number 551 0363 100
• Direct fitment for select Ford, Mercury, Mazda, and Land Rover applications
• Supports proper gear ratio control in the timing drive
• Low-maintenance repair solution for chain drive service

Detailed Application Coverage

Compatible With 2001-2011 Ford Ranger, Primary; 1997-2010 Ford Explorer, Primary; 2001-2005 Ford Explorer Sport Trac, Primary; 2007-2010 Ford Explorer Sport Trac, Primary; 2005-2010 Ford Mustang; 1998-2010 Mercury Mountaineer, Primary; 2001-2009 Mazda B4000, Primary; 2005-2007 Land Rover LR3, Primary; and 2001-2003 Ford Explorer Sport, Primary. This part number, ZT-8441, also cross-references 5510363100 for the same application.

INA ZT-8441 is used in timing drive repair where chain tension must remain controlled for accurate camshaft and crankshaft synchronization. It is a practical replacement for Ford Ranger and Ford Explorer timing service, as well as related Mustang, Mountaineer, B4000, LR3, and Explorer Sport Trac applications that use the listed primary chain setup.

Common Issues Addressed

• Timing chain slack
• Chain noise from the front of the engine
• Irregular valve timing caused by tension loss
• Wear in primary timing drive components
• Service replacement for aging chain drive parts

Installation Notes and Tips

Verify engine configuration and timing drive layout before installation. Match the part number ZT-8441 and confirm the vehicle uses the listed primary application. Timing components should be installed with the engine properly timed and inspected as a complete system for wear, including related chain and belt drive parts.

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. ZT-8441 is engineered for timing drive service where consistent chain control is required.