Gates Fuel Tank Cap P/N:31637
Seal your fuel system and keep vapors where they belong with the Gates Fuel Tank Cap 31856. It installs as a direct-fit replacement for the listed applications, including the 2010-2013 Ford Transit Connect, 2005-2008 Jaguar S-Type, 2001-2007 Jaguar X-Type, 2005-2009 Land Rover LR3, 2004-2009 Mazda 3 (plus the 2009 Mazda 3 Sport), 2006-2010 Mazda 5, 2008-2013 Volvo C30, 2006-2013 Volvo C70, 2004-2011 Volvo S40, and 2005-2011 Volvo V50 — see the Buyer's Guide tab for the full list.
Signs the cap may need replacing include a fuel odor, a cap that won't click or tighten, a cracked or worn seal, or an evaporative-system-related check engine light. If a loose, cracked, or worn cap is the cause of an EVAP leak code, this replacement addresses it — diagnose the cause first, since other components can set the same code.
Interchange: 35080 · 10521 · MGC-905 · MGC905 · 703-4119 · 7034119 · 46380. Manufacturer part number 31856.
This part cross-references / interchanges with the following part numbers:
What vehicles does the Gates 31856 fuel tank cap fit?
It's a direct-fit replacement for applications like the 2010-2013 Ford Transit Connect, 2001-2007 Jaguar X-Type, 2004-2009 Mazda 3, and 2004-2011 Volvo S40 — see the Buyer's Guide tab for the full list.
What does a fuel tank cap do?
It fits onto the filler neck to seal the tank, maintain the sealed fuel-system environment, keep fuel vapor routed through the intended path, and help block dirt and moisture from entering.
Can a bad fuel cap trigger a check engine light?
Yes — a loose, cracked, or worn cap can cause an evaporative-system leak that sets a code. If the cap is the cause, replacing it addresses it; diagnose first, since other parts can set the same code.
What numbers does this cap interchange with?
It cross-references 35080, 10521, MGC-905 (MGC905), 703-4119 (7034119), and 46380.
How do I know my cap needs replacing?
Signs may include a fuel odor, a cap that won't click or tighten, a cracked or worn seal, or an evaporative-system-related check engine light.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.