Easy to replace on your own
Your Nissan Fuel Tank Cap is one component that is frequently overlooked. You remove the Fuel Tank Cap, fill up your tank, then secure it in place again each time you fuel up, but that's probably the only time you think to acknowledge your fuel cap.
Your Fuel Tank Cap serves an important purpose in the efficiency of your Nissan's fuel system. For starters, it provides a seal for your fuel tank and keeps outside dirt, water, and other harmful debris from contaminating your gasoline. But here's another thing: the Fuel Tank Cap is also part of the EVAP, or evaporative emissions system, within your Nissan.
When your engine is running, the fuel in your vehicle heats up and emits dangerous byproducts. However, with a properly working Fuel Tank Cap, your Nissan's EVAP system can safely contain these exhaust gases to stop them from being released into the air around your vehicle.
If your Fuel Tank Cap doesn't make clicking sounds when it screws onto your fuel tank, or if it becomes loose after you've already tightened it, you likely have an old or damaged cap. Since this component is also part of the EVAP system in your Nissan, your check engine light may come on if your gas cap is malfunctioning. Other indicators of an old Fuel Tank Cap can include smelling gasoline while driving and lower fuel mileage (with no change in your driving habits).
There are several downsides to a Fuel Tank Cap that's not working as it should. A Fuel Tank Cap with a busted seal may push damaging byproducts into the atmosphere, but it may also cause a domino effect of other issues in your Nissan. A failing Fuel Tank Cap can decrease engine performance, tank your gas mileage (no pun intended!), and cause fuel leakage. You should consider replacing the Fuel Tank Cap in your Nissan as soon as you realize that it is not operating as it should.
Replacing your Fuel Tank Cap couldn't be easier, and you can do it at home. Just be sure to shop genuine Nissan parts online to enjoy the best possible fit.
This Fuel Tank Cap, part 172519CA0A, is compatible with Nissan Frontier 2006-2012, Nissan Pathfinder 2008-2012, Nissan Titan 2005-2012, or Nissan Xterra 2007-2012. See the What This Fits tab for more details.
CAP ASSY-FILLER
Fits Frontier (2010 - 2012)