INA ZT-9-5155 Engine Timing Chain Tensioner - Left Upper

Engine Timing Chain Tensioner for Audi V8 Applications

INA ZT-9-5155 is an engine timing chain tensioner for select Audi V8 applications with cam-to-cam timing drive layouts. It helps maintain correct chain tension and gear ratio control in the valve train for consistent power transmission and reliable operation.

Compatible With 2008-2015 Audi A4 Quattro, A5 Quattro, A6, A8 Quattro, Q5, S4, S5, S6, S7, S8, and RS7 applications listed below.

• Engine timing chain tensioner for left upper cam-to-cam position
• INA Global Number 551 0164 100
• Supports proper timing drive tension in select Audi valve train systems
• Built for low-maintenance operation in repair-focused timing drive service
• INA ZT-9-5155 cross-references 06E 109 217 AJ and 06E 109 217 Q for the same application

Detailed Application Coverage

INA ZT-9-5155 is used in timing drive repair on select Audi models where stable chain tension is critical to valve timing accuracy. This part is listed for 2013-2015 Audi A8 Quattro, 2014-2015 Audi RS7, 2013-2015 Audi S6, 2013-2015 Audi S7, 2013-2015 Audi S8, 2009-2012 Audi A4 Quattro, 2009-2012 Audi Q5, 2010-2012 Audi S4, 2010-2012 Audi S5, 2010-2011 Audi A6, and 2008-2010 Audi A5 Quattro, all in the left upper position. If you are searching for an Audi A4 Quattro timing chain tensioner, Audi Q5 cam-to-cam tensioner, or an Audi S6 left upper timing chain tensioner, this part number should be matched to the exact engine and position listed.

Common Problems This Part Addresses

• Timing chain slack in the upper cam-to-cam drive
• Noise from a worn or weak chain tensioner
• Incorrect valve timing caused by tension loss
• Timing drive wear during engine service or repair
• Reduced reliability in high-mileage timing components

Installation Notes and Tips

Verify the engine code, left upper position, and cam-to-cam configuration before installation. Compare the original part number and the vehicle application carefully, especially on Audi A4 Quattro, A5 Quattro, A6, Q5, S4, S5, S6, S7, S8, and RS7 models. Timing drive service should be performed with the correct locking and alignment procedures to preserve cam timing.

Quality Assurance

INA supplies repair solutions for timing drives with an emphasis on correct gear ratios, dependable operation, and lower maintenance requirements. ZT-9-5155 is engineered for the specified Audi applications and timing drive position, with OE-style fitment references for accurate replacement selection.