If you’ve ever dropped a bike on its side or laid it down on the ground while trying to make a quick repair, you’ve probably noticed a fuel leak. If you’ve ever tried to start a bike that was out of gas, you know how frustrating it is when fuel seeps out of the tank even when the cap is in place. To help prevent the spread of pollutants and the ignition of fuel if there is a leak, all fuel tanks must have caps on them.
So which fuel tank caps are best? We decided to find out by putting a wide range of caps to the test.
Read on to learn which fuel tank caps are best for your bike.
Our Editor’s Best Fuel Tank Caps Reviews
Bestseller No. 1
The Flow Security Systems VersaLock | Vented Locking Fuel Tank Cap | For Transfer & Above Ground Commercial Tanks | Prevents Theft & Secures Fuel Tanks | FSS 754 | Includes Adapter | 1CT
- PREVENT UNAUTHORIZED USE: The Flow Security Systems PRE-VENT Fuel Cap is a quick and inexpensive way to safeguard costly fuel and oil from theft, tampering, siphoning and vandalism. The VersaLock utilizes our patented free spinning design and is perfect for all business owners who want to secure their transfer fuel tanks.
- MULTIPLE USE: The FFS-754 is designed for use on mobile fuel transfer tanks as well as above ground commercial gas and distillate tanks. The VersaLock has a weather proof self-closing latch covering the face of the lock to prevent dust, dirt, debris and moisture from entering the lock.
- KEYED DIFFERENTLY OR THE SAME: The VersaLock can be keyed alike so that multiple fuel caps can be secured with the convenience of having only one key. Perfect for those who have multiple transfer tanks and don't have to carry different keys for each tank. The VersaLock can also be keyed differently so that each fuel cap can have its own unique key providing added security for your tank.
- BUILT IN VALVE: The FSS-754 uses built in valves to equalize the pressure and vacuum. The pressure vent valve allows the pressure relief valve to open at 1.5 Lbs and vacuum release to open at 1.5 Oz. This heavy duty lock is make from hard non ferrous alloy and fits standard 2 inch male thread.
- PATENTED DESIGN: The FSS-754 is different from any other cap on the market today. It is designed with our patented "free-spinning" technology. When the cap is in the secure mode the cap will free spin making it virtually impossible to remove.
Bestseller No. 2
DICMIC Transfer Tank Vented Cap w/Threaded Neck, Venting Pressure Tank Cap with 2 Inch Base, Diesel Fuel Tank Cap Fit for Diesel Transfer Tank, Fuel Transfer Tank & Vented Fuel Storage Tank
- [HIGH QUALITY] Made of high-quality materials featuring waterproof and corrosion resistance to long term serve your diesel tank. The whole tank pressure fill cap includes a removable transfer tank vented gas cap and 2-inch heavy-duty cast iron base.
- [FUNCTION] When loosen the cap, the venting pressure tank cap vent pressure inside the tank to outside and release dangerous vapor build up to prevent over-expansion of the fuel tank. And allow air into the diesel transfer tank to prevent vacuum forming and collapse the tank when you draw out fuel.
- [FITMENT] Works well for ground, farm, commercial and distillate tanks, such as transfer tank, fuel tank, gas tank, diesel tank, auxiliary fuel tank, mobile fuel tank and weather guard tank.
- [EASY TO INSTALL] Align the vented gas cap with the notch, push down and clockwise twisting to tighten the diesel tank cap all the way. To remove transfer tank cap, counter-clockwise twist slowly to the notch to vent pressure. Push down and twist to lift pressure vent cap and remove.
- [NOTICE] For any reason, if you are not satisfied with your purchase, contact us directly.
Bestseller No. 3
594061 Fuel Tank Cap for B&S Toro Craftsman Lawn Mower Gas Tank Caps Replacement
- 594061 Fuel Tank Cap for B&S Lawn Mower Gas Tank Caps
- Replacement Fuel Tank Cap
- If the gas caps become loose due to cracked, worn out, or stripped threads over time, the cap should be replaced. It is recommended that you use this cap with an additional gasket to make the cap fit more snugly.
- Includes tether to attach the tank cap to engine
- Package list: 1x Fuel tank cap, 1 x O-Ring
Bestseller No. 4
Fuel Tank Cap Replaces OEM#95995094 - Tight Sealing Gas Cap Compatible with Chevy Corvette,Buick Allure,GMC Canyon,Saturn Aura,Pontiac G3/G5/G6,Cadillac DTS/CTS - Car Mods Fuel Cap
- đ Gas Cap Replacement Part Number: Gas cap replacement OEM#95995094. Its cover diameter is 2.92 inches, the diameter of the threaded interface is 1.56 inches, and the overall height is 2.34 inches. Car fuel cap is compatible with Chevy, GMC, Buick, Saturn, Cadillac, Pontiac. Please double check the Amazon's PCFit before placing your order.
- đ Compatible with Chevy: Fuel tank cap is compatible with Chevy 2004-2012 Colorado, 2007-2011 Corvette, 2004-2011 Aveo, 2006-2011 Aveo 5, 2004-2012 Malibu, 2006-2012 Impala, 2005-2010 Equinox, 2005-2010 Cobalt, 2006-2011 Express 3500 Van, 2006-2011 Express 2500 Van, 2006-2011 Express 1500 Van.
- đ Compatible with GMC: Automotive replacement fuel tank caps also compatible with 2005-2009 Envoy, 2005-2006 Envoy XL, 2004-2012 Canyon, 2006-2011 Savana 3500 Van (V8 4.8L 6.0L), 2006-2011 Savana 2500 Van (V8 4.8L 6.0L), 2006-2011 Savana 1500 Van, 2005 Envoy XUV.
- đ Compatible with Buick: Gas tank cap also compatible with 2005-2010 LaCrosse, 2005-2007 Terraza, 2005-2007 Rainier, 2005-2008 Allure, 2006-2011 Lucerne, 2011 Regal, 2004-2007 Rendezvous. For more compatible car models of the product, please refer to the detailed description page.
- đ Tight Sealing: If you want to replace the gas cap cover with a new one, it will definitely be your best choice! The precise plastic threads can perfectly rotate and integrate into your car fuel tank, providing a tight sealing effect.
Bestseller No. 5
The Flow Security Systems Vented Locking Fuel Tank Cap | Secures Transfer & Above Ground Commercial Fuel Tanks | Prevents Theft & Fuel Vandalism | FSS 377M | Male 2" Std Thead
- PREVENT UNAUTHORIZED USE: The Flow Security Systems FSS-377 vented fuel cap is a quick and inexpensive way to safeguard costly fuel and oil from theft, tampering, siphoning and vandalism. The FSS-377 is perfect for anyone who want to secure their fuel tanks.
- MULTIPLE USES: The FSS-377 is designed for use on mobile fuel transfer tanks, as well as above ground commercial tanks.
- COMPATIBILITY: Fits all 2'' male threaded tanks. Cap is secured to adapter with any 5/16th diameter shackle padlock (not included).
- INSTALLATION: The adapter is firmly connected to the tank via a wrench. It can be permanently set in place with use of a thread locker.
- HEAVY DUTY: Manufactured to the highest standards and built to last a lifetime. Cap and adapter are made from high quality carbon steel, CNC machined for precise fit and function, and case hardened for durability and resistance to drilling and damage.
Bestseller No. 6
The Flow Security Systems Non-Vented Locking Fuel Tank Cap | Secures Transfer & Above Ground Commercial Fuel Tanks | Prevents Theft & Fuel Vandalism | FSS 376M | Male 2" Std Thead
- HEAVY DUTY: Manufactured to the highest standards and built to last a lifetime. Cap and adapter are made from high quality carbon steel, CNC machined for precise fit and function, and case hardened for durability and resistance to drilling and damage.
- COMPATIBILITY: This cap is sealed and can only to be used on fuel tanks that have independent venting.
- VERSATILE: Fits all 2â male or female fuel tanks.
- CORROSION RESISTANT: Once hardened the cap and adapters are silver zinc plated for corrosion resistance.
- PADLOCK: The cap has 4 elongated slots machined on the shoulder to allow for a padlock (NOT INCLUDED) to align with one of the 12 holes (5/16" diameter) in the adapter.
Bestseller No. 7
Locking Gas Cap Fuel Tank with Key, Gas Cap Lock Locking Fuel Cap Cover Replacement for Toyota 4Runner, Chevy Silverado 1500 2500 3500, Nissan GMC Honda Subaru Buick #10504 77300-47020
- [Lockable fuel tank cap] : Our locking gas cap fuel tank with key can effectively prevent the occurrence of oil theft incidents and protect your personal property. Each Locking Gas Cap is with 2 keys to prevent loss.
- [Seal design]: The lock fuel cap cover is made of high-quality ABS plastic and rubber. It is sturdy and durable, rust-proof and corrosion-proof, has good sealing performance, can prevent gas or liquid leakage, improve the utilization efficiency of fuel, reduce steam emissions, and ensure driving safety.
- [Replacement] : Automotive replacement fuel tank caps 10504 77300-47020. compatible with Toyota 4Runner, Tacoma, Tundra, FJ Cruiser, Chevy, Camaro, Honda CRV, GMC, Infiniti, Isuzu, Mazda, Cadillac. Not all vehicles are listed, please check your vehicle's part number before ordering
- [Easy to install]: The installation of 10504 77300-47020 Fuel tank filler cap is very simple, just remove the old fuel cap, rotate the new fuel cap, until you hear a click, flexible operation, easy installation, saving time and energy
- [Package includes]: Our locking oil cap is a practical and easy to carry car replacement parts, the package includes 1 lock lid and 2 keys, you can use at will, to ensure the safety of your car.
Bestseller No. 8
Eponcia Locking Gas Cap lock, Locking Fuel Cap with Key for 4Runner, Chevy Silverado 1500 2500 3500, Nissan GMC Subaru Buick Gas Lock Fuel Tank Caps Cover Replacement with Key 77300-47020 10504
- Locking Fuel Cap: This locking fuel cap prevents fuel theft, providing added security and reliability. It comes with two keys to prevent key loss, ensuring driver safety
- Compatible: The gas cap lock is compatible with the 1999-2002/2010-2021 4Runner, 1999-2003 Chevrolet, 2012-2017 Silverado 1500, 2001-2003 Silverado 1500 HD/Suburban 2500, 2014-2016 Chevrolet Suburban, 1998-2003/2012-2013 Suburban 1500, 2017 Suburban 3500 HD, 2019 Subaru Ascent, 2013-2017 BRZ/Cadillac ATS, and 2016-2019 Crosstrek. Compatible with the 1992-2005 Civic, 2012-2015 Saturn/Cadillac CTS, 2007-2010 Outlook, 2008-2010 Vue, 2006-2007 Buick Cascada, and 2011-2017 Regal
- OEM Part Replacement: Our locking gas cap's OEM part number is #10504 (77300-47020), which fits multiple models including Chevrolet, Nissan, Honda, Cadillac, and more. Please verify your model number before purchasing to avoid purchasing the wrong model
- Strong Sealing Performance: The fuel cap is made of high-strength ABS plastic and rubber, providing excellent durability and a waterproof seal, effectively preventing fuel leaks and vapor evaporation
- Easy Installation: This gas lock fuel cap with key simply aligns with the fuel tank opening and twists until you hear a click. Easy to install, no tools required
Bestseller No. 9
Gates 31748 OE Equivalent Fuel Tank Cap
- genuine gates oe equivalent fuel cap
- Fit type: Vehicle Specific
- Fenderwell Fuel Caps are zinc-plated and dichromate dipped for superior corrosion resistance
- Model Number: 31748
Bestseller No. 10
RADHLBNIU Gas Cap 77300-06040 - Fuel Tank Cap Replacement For Toyota Scion, 4Runner, Avalon, Camry, Corolla, Highlander, Matrix, RAV4, Tacoma - Lexus ES350, GS350, GS460, LX470, xA, More
- ăReplace Part Numberă77300-06040, 7730006040 fuel gas cap. Fit for Scion 2008-2013 xD, 2005-2006, 2008-2013 xB, 2006 xA,2011-2013 tC. Compatible With Toyota 2007-2014 Sienna(To 08/2013), 2007-2008 Solara, 2009-2014 Tacoma(To 09/2013), 2007-2014 Tundra (To 08/2013), 2009-2013 Venza(To 10/2012), 2007-2011 Yaris
- ăCompatible With Toyota Carsă2010-2015 4Runner, 2007-2012 Avalon, 2007-2011 Camry( NOT Calif or Hybrid Spec), 2012-2013 Camry (NOT PZEV Spec To12/2012), 2005-2013 Corolla (From 08/2005 NOT Japan Buit), 2007-2014 Fj Cruiser, 2007-2009,2012-2013 Highlander(From 06/2006), 2010-2011 Highlander(Exclude Japan Built), 2005-2014 Land Cruiser(From 05/05 To08/2014), 2004-2013 Matrix(From 08/2005 Japan Built Part), 2006-2012 RAV4, 2008-2016 Sequoia(To 06/2015)
- ăCompatible With Lexus Carsă2007-2012 ES350, 2007-2011 Lexus GS350, 2007 GS430, 2008-2011 Lexus GS460, 2010-2015 GX460(To 08/2014), 2008-2014 IS F, 2006-2014 1S250,IS350, 2006 LS430(From 07/2005), 2007-2012 LS460, 2005-2007 LX470(From 05/2005), 2008-2015 LX570(To08/2014), 2008-2015 RX350(To 09/2013),2006-2010 SC430(From 08/2005)
- ăDurable ConstructionăProvides a tight seal to keep your vehicle's fuel tank closed, safety your vehicle's occupants, fuel economy and reduce vapor emissions.
- ăInstallationăBrand New and ready to install straight out of the box. Most fuel caps are sealed by turning them until you hear a clicking sound. An old, loose gas cap, cracked or otherwise faulty gas cap may causes your check engine light CEL turns on.
Best Fuel Tank Caps Buying Guide
Before choosing the best fuel tank caps you should consider following options:
1. Fuel Tank Cap Types: Fuel tank caps are available in two types: rubber and plastic. The most common caps are made from plastic.
Plastic caps are more affordable, lighter and easier to maintain. Rubber caps, on the other hand, last longer and can resist damage from ultraviolet rays.
2. Size: Fuel tank caps come in standard sizes, which makes it easy to find replacements. Note the tank cap size before buying new caps.
3. Durability: Fuel tank caps are exposed to harsh conditions, so you need to get something that can withstand abuse.
Look for caps made from durable materials, such as stainless steel. Caps with rubber gaskets are also a good choice because they wonât break down as quickly as plastic ones.
4. Ease of Use: Tank caps are required to contain fuel, so they have to be easy to open and close.
Consider fuel tank caps that have easy-to-use locking mechanisms. Caps with rubber gaskets are also easier to close because they create a tight seal.
5. Cost: Fuel tank caps are available in different price ranges, so you can get something that suits your budget.
What else you should know about fuel tank caps
1. What is the purpose of a fuel tank cap?
The purpose of a fuel tank cap is to seal the opening of the fuel tank. This helps to prevent fuel leakage and evaporation, and keeps dirt and water out of the tank.
2. How does a fuel tank cap work?
A fuel tank cap works by sealing the fuel tank and preventing fuel vapors from escaping.
3. What are the benefits of using a fuel tank cap?
There are several benefits to using a fuel tank cap:
1. It helps to prevent fuel evaporation, which can lead to loss of fuel and decreased gas mileage.
2. It helps keep water and other contaminants out of the fuel tank, which can clog fuel filters and lead to engine problems.
3. It helps prevent fuel leaks, which can be dangerous and costly.
4. What are the drawbacks of using a fuel tank cap?
Some drawbacks of using a fuel tank cap include the potential for the cap to leak, the cap not sealing properly, and the cap not fitting snugly on the fuel tank.
5. What are the different types of fuel tank caps available?
Some common types of fuel tank caps are vented, non-vented, locking, and threaded.
Conclusion
On the market, there are numerous best fuel tank caps. Hopefully, the list of the top ten best fuel tank caps will save you time researching and deciding on the best one for you.