Gates 31434 Engine Cooling System Pressure Tester Adapter

Radiator Cap Tester Adapter for VW and Audi

The Gates 31434 radiator cap/cooling system tester adapter is a threaded cap adapter used with a radiator cap and cooling system pressure tester. It helps the tester accommodate multiple component sizes, including a 59.2mm I.D. threaded connection for specific Volkswagen, Audi, Porsche, and Buick applications.

• Brand: Gates
• Part Number: 31434
• Engine cooling system pressure tester adapter
• Attachment type: cap adapter
• Type: cap adapter
• 59.2mm I.D. threaded design
• Used with a radiator cap and cooling system tester

Product Details

Gates Radiator Cap/Cooling System Tester Adapter 31434 is built for technicians who need the correct interface when pressure testing cooling systems on select import and domestic vehicles. This adapter is used with a radiator cap and cooling system tester to match the tester to the vehicle’s cap or filler neck configuration. It is listed for a wide range of applications, including Volkswagen Tiguan, Volkswagen Jetta, Audi A4, Audi A6, Audi Q5, Porsche Cayenne, and related models across multiple model years.

This part cross-references Dorman - HELP 46830 for the same application. Gates 31434 is also associated with Gates 12037.

What It Helps Diagnose

• Cooling system pressure loss during radiator cap testing
• Incorrect tester-to-cap fit on threaded cooling system components
• Difficulty adapting a pressure tester to select VW and Audi caps
• Repeat testing caused by mismatched adapter sizing
• Service bay delays when checking for leaks in the cooling system

Installation Notes and Fitment

Use this adapter with a compatible radiator cap and cooling system pressure tester. Confirm the 59.2mm I.D. threaded specification before service, and match the adapter to the vehicle application listed below.

• Fits 2018-2020 Volkswagen Tiguan, N/A
• Fits 2009-2014 Volkswagen Tiguan, N/A
• Fits 2015-2019 Volkswagen e-Golf, N/A
• Fits 2018-2019 Volkswagen Golf Alltrack, N/A
• Fits 2018-2019 Volkswagen Golf SportWagen, N/A
• Fits 2010-2013 Volkswagen Golf SportWagen, N/A
• Fits 2012-2019 Volkswagen Passat, N/A
• Fits 1998-2010 Volkswagen Passat, N/A
• Fits 2018 Audi A3, N/A
• Fits 2006-2013 Audi A3, N/A
• Fits 2018 Audi A3 Quattro, N/A
• Fits 2006-2013 Audi A3 Quattro, N/A
• Fits 2018 Audi A3 Sportback e-tron, N/A
• Fits 2004-2018 Audi A8 Quattro, N/A
• Fits 2018 Audi Q3, N/A
• Fits 2018 Audi Q3 Quattro, N/A
• Fits 2018 Audi S7, N/A
• Fits 2013-2016 Audi S7, N/A
• Fits 2018 Audi TT Quattro, N/A
• Fits 2000-2014 Audi TT Quattro, N/A
• Fits 2018 Audi TTS Quattro, N/A
• Fits 2009-2014 Audi TTS Quattro, N/A
• Fits 2018 Buick LaCrosse, N/A
• Fits 2008-2018 Porsche Cayenne, N/A
• Fits 2003-2006 Porsche Cayenne, N/A
• Fits 2018 Volkswagen Golf, N/A
• Fits 2010-2014 Volkswagen Golf, N/A
• Fits 1999-2007 Volkswagen Golf, N/A
• Fits 2018 Volkswagen GTI, N/A
• Fits 2006-2014 Volkswagen GTI, N/A
• Fits 1999-2018 Volkswagen Jetta, N/A
• Fits 2018 Volkswagen Tiguan Limited, N/A
• Fits 2008-2017 Audi A5 Quattro, N/A
• Fits 2009-2017 Audi Q5, N/A
• Fits 2014-2017 Audi RS7, N/A
• Fits 2014-2017 Audi SQ5, N/A
• Fits 1998-2017 Volkswagen Beetle, N/A
• Fits 2009-2017 Volkswagen CC, N/A
• Fits 2004-2017 Volkswagen Touareg, N/A
• Fits 2013-2016 Audi A4 allroad, N/A
• Fits 2008-2016 Audi A5, N/A
• Fits 1998-2016 Audi A6, N/A
• Fits 1998-2016 Audi A6 Quattro, N/A
• Fits 2016 Audi A7, N/A
• Fits 2012-2016 Audi A7 Quattro, N/A
• Fits 2013-2016 Audi allroad, N/A
• Fits 2007-2016 Audi Q7, N/A
• Fits 2004-2016 Audi S4, N/A
• Fits 2000-2002 Audi S4, N/A
• Fits 2008-2016 Audi S5, N/A
• Fits 2013-2016 Audi S6, N/A
• Fits 2007-2011 Audi S6, N/A
• Fits 2001-2004 Audi S6, N/A
• Fits 2007-2016 Volkswagen Eos, N/A
• Fits 1997-2015 Audi A4, N/A
• Fits 1997-2015 Audi A4 Quattro, N/A
• Fits 2011-2015 Volkswagen Clasico, N/A
• Fits 2014 Audi R8, N/A
• Fits 2008-2012 Audi R8, N/A
• Fits 2000-2014 Audi TT, N/A
• Fits 2011-2013 Audi TT RS Quattro, N/A
• Fits 2011-2013 Porsche Panamera, N/A
• Fits 2012-2013 Volkswagen Golf R, N/A
• Fits 2009-2012 Volkswagen Passat CC, N/A
• Fits 2010 Audi S3, N/A
• Fits 2010 Volkswagen Beetle Cabrio, N/A
• Fits 2005-2010 Volkswagen Bora, N/A
• Fits 2007-2009 Audi S8, N/A
• Fits 2007-2009 Volkswagen Jetta City, N/A
• Fits 2007-2008 Audi RS4, N/A
• Fits 2008 Volkswagen R32, N/A
• Fits 2004 Volkswagen R32, N/A
• Fits 2007 Volkswagen Golf City, N/A
• Fits 2001-2005 Audi Allroad Quattro, N/A
• Fits 2003-2004 Audi RS6, N/A
• Fits 1996 Audi A4, N/A
• Fits 1996 Audi A4 Quattro, N/A

Quality Assurance

Gates supplies cooling system service components for professional repair use, and this adapter is specified as a threaded cap adapter for radiator cap and cooling system testing. Verify the adapter style and thread size against the vehicle before service.