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Flex Fuel Fuel Caps

Gates Flex Fuel caps feature yellow plastic covers and an E85 designation on them to remind vehicle operators that they have the option to use gasoline or E-85 Ethanol in their vehicles. The OE-quality product line covers virtually all flex fuel vehicles on the road today.

  • High visibility yellow cover; "E85" is printed on the cap
  • Helps prevent fuel contamination
  • Pressure and vacuum reliefs match OE specifications
  • Includes unique OE safety features like the break-away groove
  • Compatible with a wide range of flex fuel vehicles: Chevrolet, Chrysler, Dodge, Ford, GMC, Mercury, Plymouth

All Parts

1-5 of 5 Items
Part # Product # Description Type Cam Type Locking Venting Shell Diameter Neck Diameter Cap Depth
31830Y 74100239 31830Y YELLOW FUEL CAP Flex Fuel Regular Fuel Cap 1/8 Turn false Pressure Vacuum 2.91 in 1.67 in 2.38 in
31832Y 74100243 31832Y YELLOW FUEL CAP Flex Fuel Regular Fuel Cap Threaded false Pressure Vacuum 2.61 in 1.77 in 1.78 in
31838Y 74100244 31838Y YELLOW FUEL CAP Flex Fuel Regular Fuel Cap Quick-On false Pressure Vacuum 2.78 in 1.78 in 2.41 in
31841Y 74100245 31841Y YELLOW FUEL CAP Flex Fuel Regular Fuel Cap Quick-On false Vacuum Only 2.75 in 1.56 in 1.91 in
31843Y 74100246 31843Y YELLOW FUEL CAP Flex Fuel Regular Fuel Cap Quick-On false Vacuum Only 2.75 in 1.56 in 2.05 in
1-5 of 5 Items

OE Quality for the Aftermarket

Our long-standing partnerships working with automotive OEMs on production vehicles enable us to produce aftermarket parts of superior quality, durability, and performance. Gates Flex Fuel Caps offer a durable construction of wear-resistant thermoplastic compound to ensure tight closing and prevent spills and leaks. Our OEM-caliber fuel caps are rich in features that keep the fuel system operating properly and safely. The Yellow color and E85 designation reminds motorists of the option to use gasoline or E85 ethanol in their vehicles.

Optimum fuel pressure

Fuel caps can have two different breathing systems: vented or non-vented. A non-vented fuel cap is recommended when your fuel tank is ventilated through the filler neck, whereas the vented fuel cap is equipped with a special breathing valve so that it can be used on non-ventilated fuel tanks.