INA ZT-91231 Engine Timing Chain Tensioner - Lower

Engine Timing Chain Tensioner for Volkswagen, Audi, Porsche

INA ZT-91231 is an engine timing chain tensioner for select Volkswagen, Audi, and Porsche applications. It is used in valve train service where accurate chain tension is needed for proper camshaft timing and engine operation.

Key Features

• Engine timing chain tensioner for valve train service
• Fits 2016-2017 Volkswagen Passat, N/A
• Fits 2012-2014 Volkswagen Passat, N/A
• Fits 1993-1997 Volkswagen Passat, N/A
• Fits 2009-2016 Volkswagen CC, N/A
• Fits 2008-2014 Porsche Cayenne, N/A
• Fits 2004-2006 Porsche Cayenne, N/A
• Fits 2007-2010 Audi Q7, N/A
• Fits 2006-2009 Audi A3 Quattro, N/A
• Fits 2004-2009 Audi TT Quattro, N/A
• Fits 2007-2008 Volkswagen Eos, N/A
• Fits 2004-2006 Volkswagen Touareg, N/A
• Fits 1999-2003 Volkswagen EuroVan, N/A
• Fits 1997 Volkswagen EuroVan, N/A
• Fits 1998-2002 Volkswagen Jetta, Lower
• Fits 1997 Volkswagen Golf, N/A, to chassis #VIN AAA 217 000
• Fits 1997 Volkswagen Jetta, N/A, to chassis #VIN AAA 217 000
• Fits 1995-1996 Volkswagen Golf, N/A
• Fits 1995-1996 Volkswagen Jetta, N/A
• Fits 1992-1994 Volkswagen Corrado, N/A

Detailed Description

INA ZT-91231 is a direct-fit timing chain tensioner for a wide range of Volkswagen Passat, Volkswagen CC, Audi Q7, Audi A3 Quattro, Audi TT Quattro, Porsche Cayenne, and related European platforms. This part cross-references 5510172100 for the same application. Use it when servicing the engine timing system and restoring correct chain control in vehicles that rely on precise valve train synchronization.

Common Repair Uses

• Timing chain noise from a worn or weak tensioner
• Incorrect chain slack affecting cam timing
• Engine performance issues tied to timing instability
• Valve train service on high-mileage Volkswagen, Audi, or Porsche engines
• Replacement during timing system maintenance

Installation Notes and Tips

Verify engine code, chassis breakpoints, and position before ordering, especially for 1997 Volkswagen Golf and Jetta applications with the VIN AAA 217 000 cutoff. Confirm the lower position on 1998-2002 Volkswagen Jetta listings and match the original tensioner style to the engine configuration. Proper timing alignment is critical during installation.

Quality Assurance

INA is a recognized name in engine timing components, and ZT-91231 is cataloged for the listed Volkswagen, Audi, and Porsche fitments.