INA ZT00491 Engine Timing Chain Tensioner - Left

INA ZT00491 Timing Chain Tensioner

INA ZT00491 is an engine timing chain tensioner for select Audi V6 applications. It supports accurate timing drive operation by maintaining proper chain tension, helping the engine keep correct camshaft and crankshaft synchronization.

Key Features

• Engine timing chain tensioner for the valve train
• INA repair solution for chain and belt drive components
• Built for reliable gear ratio control in the timing drive
• Supports low-maintenance operation in approved applications
• Cross-references Genuine 06E109217H for the same application

Detailed Description

This INA timing chain tensioner, part number ZT00491, is made for timing drive service on select Audi A4, Audi A4 Quattro, Audi A6, Audi A6 Quattro, and RS4 models. It is used in the engine valve train to maintain chain tension and help preserve precise timing under operating load. Compatible applications include Fits 2005-2008 Audi A4, Left; Fits 2005-2009 Audi A4 Quattro, Left; Fits 2006-2011 Audi A6, Left; Fits 2005-2009 Audi A6 Quattro, Left; and Fits 2007 Audi RS4, Left, to chassis #8E-7-907-300. Part number ZT00491 is also referenced by INA Global Number 551 0049 100.

What It Helps Address

• Timing chain slack or inconsistent chain tension
• Noise from a worn timing drive component
• Incorrect camshaft timing caused by tension loss
• Service needs on Audi V6 timing drive systems
• Replacement of a worn OE-style tensioner assembly

Installation Notes

Verify engine code, chassis breakpoints, and left-side application before installation. Confirm the existing OE number and compare it to ZT00491 and 06E109217H before ordering. Timing drive service should be performed with the engine properly timed and inspected for related wear in the chain system.

Quality Assurance

INA supplies repair solutions for chain and belt drive components with an emphasis on correct gear ratios, dependable operation, and reduced maintenance requirements in the intended applications.