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
Transfer Tank Vented Fuel Cap w/Threaded Neck,Diesel Tank Cap with 2 Inch Base,Fuel Venting Pressure Tank Cap for Diesel Transfer Tank,Fuel Transfer tank,Vented Fuel Storage Tank & Auxiliary Fuel Tank
- Fitment: Transfer tank vented cap replace for Dee Zee Fill-Rite transfer tank cap and fit for standard 2" NPT threaded tank bung base. Diesel tank cap 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.
- Both Directions Vent: When loosing the diesel tank cap, the venting pressure tank cap vent pressure inside the fuel tank to outside and release dangerous vapor build up to prevent over-expansion of the diesel fuel tank. And vented fuel cap allow air into the diesel transfer tank to prevent vacuum forming and collapse the tank when you draw out fuel.
- Added Security for Diesel Tanks Fuel: Lockable diesel fuel tank cap fit for 1/4" - 5/16" diameter shackle padlock (not included), which secure your fuel tanks and prevent costly oil fuel from theft,tampering, siphoning and vandalism. Just put a padlock in lock hole that is right on one of the tabs on the base and the tabs will hold the lock.
- Prevent Leaking: Transfer tank fuel cap with spring loading and inside gasket is seal when tightly closing to prevent leaking and excess gas vapor venting even drive in road.
- Easy to Use: 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 fuel cap and remove.
$21.49
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Bestseller No. 2
Transfer Tank Vented Fuel Diesel Tank Cap,Venting Pressure Tank Cap for 2 Inch Base,Vented Gas Cap for Fuel Transfer Tank/Auxiliary Fuel Tank/Vented Fuel Storage Tank-Only Include Vented Tank Fill Cap
- Fitment: Transfer tank vented cap replace for Dee Zee Fill-Rite venting pressure tank cap and fit for standard 2" NPT threaded tank bung base. Diesel tank cap 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.
- Both Directions Vent: When loosing the cap, the transfer diesel 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.
- Prevent Leaking: Fuel transfer tank cap with spring loading and inside gasket is seal when tightly closing to prevent leaking and excess gas vapor venting even drive in road.
- Easy to Use: Align the transfer tank fuel 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.
- Heavy-duty Diesel Tank Cap: Made of high quality materials featuring waterproof and corrosion resistance to long term serve your diesel tank. The transfer tank vented cap package only includes a removable transfer tank fuel cap.
$16.95
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Bestseller No. 3
The Flow Security Systems Non-Vented Locking Fuel Tank Cap | For Transfer Tanks & Above Ground Commercial Tanks | Prevents Theft & Fuel Vandalism | Secures Fuel Tanks | 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 2” 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.
$39.95
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Bestseller No. 4
The Flow Security Systems Vented Locking Fuel Tank Cap | For Transfer Tanks & Above Ground Commercial Tanks | Prevents Theft & Fuel Vandalism | Secures Fuel Tanks | 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.
- DURABLE: This heavy duty cap is made from high quality, CNC machined carbon steel with silver zinc-plating for corrosion resistance and durability.
- BUILT-IN VALVE: The FSS-377 uses a built-in valve to equalize pressure and vacuum. The valve allows the tank to vent when pressure reaches 1.5 psi and releases vacuum at 1.5 oz
- COMPATIBILITY: Fits all 2'' male threaded tanks. Cap is secured to adapter with any 5/16th diameter shackle padlock (not included).
$49.95
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Bestseller No. 5
The Flow Security Systems VersaLock | Vented Locking Fuel Tank Cap | For Transfer Tanks & Above Ground Commercial Tanks | Prevents Theft & Secures Fuel Tanks | FSS 754 | Includes Adapter
- 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.
$44.95
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Bestseller No. 6
Vent Gas Cap for Boat Fuel Tank Marine Manual Fuel Tank Caps Replacement Moeller Tempo Fuel Tank (621501-10)
- 【Replacement Part Number】621501-10
- 【Compatibility】The boat gas tank cap is suitable for a variety of fuel tank models, including 031103, 031106, 031109, 031112, 031212, 620003, 620049, 630012, 630013, 630014, 620040, 720040, 730014, and 730025.
- 【Material】The boat gas cap replacement is made of durable plastic, which not only ensures the durability of the fuel tank cap, but also has good chemical resistance. It can resist the erosion of acids, alkalis and solvents, and can maintain performance even in harsh environments.
- 【Function】This manual vented fuel tank cap can effectively seal portable fuel containers to prevent fuel leakage. At the same time, through the manual venting design, you can vent the tank by simply twisting the top, avoiding the expansion of the fuel tank caused by temperature changes, ensuring the smooth operation of the engine.
- 【Easy to Install】The marine gas cap is designed to be easy to install and can be quickly replaced or installed on existing fuel tanks without complicated tools or techniques, greatly saving installation time.
$18.99
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Bestseller No. 7
Fuel Tank Cap Gas Cap Compatible with Chevy Aveo Cobalt Colorado Malibu Impala Express,GMC Canyon Envoy Savana, Pontiac Grand Prix Buick LaCrosse Lucerne,Cadillac DTS CTS STS Replaces 95995094
- 【High Quality】A ABIGAIL Gas Cap is made of durable ABS plastic material for long lasting durability and reliability. Direct replacement as the OE quality.
- 【Application】This Gas Cap Cover is Compatible With 2004-2012 Chevy Equinox Malibu Colorado Express Corvette Impala & GMC Canyon Savana, Buick LaCrosse Regal 2005-2011, Cadillac CTS 2007-2011 and more please check the description.
- 【Interchange Part No.】This Gas Cap Cover Replaces # 95995094
- 【Easy installation】Direct replacement, No drilling required, Non-Locking, smooth door operation.
- 【Service】100% satisfaction guarantee, If you have any issues with the Fuel Cap, simply contact customer service for troubleshooting help, parts, replacement, or refund. Our aim is to make you satisfy the parts and the service we provide for you.
$9.99
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SaleBestseller No. 8
MotoRad MGC-817T Tethered Fuel Cap Fuel Tank Cap Fits Toyota Camry 83–23 Corolla 83–23 RAV4 00–23 Honda Accord 90–17 Civic 92–15 CR-V 97–16 17670S5AA32 172519DC1C 172519DC0B 31392044 31321925
- This part fits many vehicle years, makes and models. Please verify fitment with Amazon Confirmed Fit
- Fits Select TOYOTA: Camry 83-23, Corolla 83-23, RAV4 00-23, Tacoma 99-23, HighLander 01-23, Tundra 00-23, Sienna 99-19, 4Runner 84-23, Avalon 98-22, Prius 01-15, Yaris 06-18, Sequoia 01-19, Venza 09-16, Matrix 03-14, FJ Cruiser 07-14, Prius C 12-19, Prius V 12-17, Solara 99-08, Pickup 84-88, C-HR 18-19, Corolla Cross 23, Land Cruiser 00-19, Celica 84-05, Echo 00-05, Corolla iM 17-18, Yaris iA 17, MR2 Spyder 00-05, GR86 23, 86 17-19, MR2 85-88, Supra 86-88, GR Corolla 23, Tercel 83-88, Van 84-88, Cressida 83-89, Starlet 83-84, Yaris R 16-18, Hilux 09-20, Hiace 11-19, Avanza 19 | KIA: Telluride 21, Sportage 95-02, Sephia 94-01, Rio 01-02, Spectra 00-02, Optima 01, Magentis 01
- Fits Select HONDA: Accord 90-17, Civic 92-15, CR-V 97-16, Odyssey 95-17, Pilot 03-15, HR-V 16-22, Fit 06-20, Element 03-11, Ridgeline 06-14, Insight 00-14, Crosstour 12-15, S2000 00-09, Accord Crosstour 10-11, Prelude 92-01, CR-Z 11-16, Civic del 93-97, Passport 94-02, City 10-19 | MAZDA: CX-5 13-23, 3 14-18, 6 14-21, CX 9 13-23, CX-3 16-21, Protege 90-03, CX-50 23, MPV 96-06, 626 93-02, B2300 94-01, Protege5 02-03, B4000 94-98, B2200 90-93, B3000 94-98, B2600 89-93, B2500 98, Millenia 95-02, RX-7 93-95, MX-6 93-97, Navajo 91-94, 929 92-95, 3 Sport 14-18 | JEEP: Wrangler 91-00, Grand Cherokee 93-00, Cherokee 84-99, Comanche 86-92, Wagoneer 84-90, Grand Wagoneer 93, TJ 97-00
- Fits Select SUBARU: Outback 00-24, Forester 98-24, Crosstrek 16-24, Impreza 93-22, Legacy 90-22, Ascent 19-24, XV Crosstrek 13-15, WRX 15-23, WRX STI 15-21, BRZ 13-20, Baja 03-06, SVX 92-97, GL 85-86, GL-10 85-86, XT 85-86, DL 85-86, RX 85-86, XV 13-19 | LEXUS: RX350 07-23, ES350 07-23, IS250 06-15, GX460 10-23, GS350 07-19, NX200t 15-17, IS300 01-23, LS460 07-17, IS350 06-23, NX300 18-19, CT200h 11-17, LS430 01-06, RX300 01-03, ES300h 13-18, SC430 02-10, RX350L 18-22, IS200t 16-17, GS300 00-19, LX570 08-19, RC350 15-23, NX300h 15-19, LX470 01-07, LS500 18-23, UX200 19-22, RX450h 10, NX350 23, NX250 22-23, LX600 22-23, RC300 16-23, ES300 01, LC500 18-23, GS430 01-07, RC200t 16-17, LFA 12
- Fits Select NISSAN: Rogue 11-20, Altima 93-18, Sentra 91-19, Frontier 98-21, Murano 11-23, Pathfinder 87-20, Versa 12-23, Maxima 89, Rogue Sport 17-22, Armada 12-22, Titan 13-23, XD 16-23, Versa Note 14-19, Juke 11-17, Rogue Select 14-15, Pickup 95-09, Xterra 00-15, Quest 93-17, D21 90-94, NV2500 14-21, 370Z 11-20, NV3500 14-21, 300ZX 84-96, NV200 13-15, 240SX 89-98, NV1500 14-21, Cube 13-14, 200SX 95-98, GT-R 11-21, Stanza 90-92, Z 23, NX 91-93, Axxess 90-95, X-Trail 02-20, March 12-17, Micra 15-18, NP300 10-21, NP300 Frontier 16-20, Qashqai 18, Tsuru 04-17, Urvan 01-13 | SCION: xB 04-15, tC 11-16, xD 08-14, xA 04-06, FR-S 13-16, iM 16, iQ 12-15
$6.09
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Bestseller No. 9
Fuel Tank Filler Cap,Gas Cap Compatible With Toyota - 4Runner, Avalon, Camry, Corolla, Highlander, Matrix, Sequoia, Sienna, Solara, Tacoma, Tundra, GX470, ES330, ES300，Replace# 77300-33070 7730033070
- 【Replacement Part Number】-77300-33070, 7730033070 gas cap. Before Ordering, Please Confirm Whether The Accessories Are Suitable For Your Vehicle To Confirm Compatibility！Most fuel caps are sealed by turning them until you hear a clicking sound！
- 【FIT FOR】 -The gas cap compatible with TOYOTA:2003-2009 4Runner,2005-2006 Avalon ,2002-2006 Camry,2005 Corolla,2004-2006 Highlander ( Not For Hybrid ),2005 Matrix,2005-2007 Sequoia,2004-2006 Sienna,2004-2006 Solara ( Exclude Japan Built Part ),2005-2008 Tacoma,2003-2006 Tundra/compatible with Leuxs : 2002-2003 ES300, 2004-2006 ES330,2006 GS300,2006 GS430,2003-2009 GX470,2004-2006 RX330, 2006-2009 tC.Easy Installation And Perfect Fit！
- 【Advantage】- As Time Goes By, The Fuel Filler Cap Of The Car Will Be Loose And Invalid,This Will Increase Fuel Vapor Emissions， May Causes Your Check Engine Light CEL Turns On.Our Fuel Filler Cap Are Designed And Manufactured According To OEM And Can Perfectly Replace Damaged Fuel Filler Cap. The Price Is Only A Small Part Of The Dealer!
- 【High performance】-Long Service Life, Fuel Filler Cap Is Made Of Reinforced ABS Plastic And High-Quality Sealing Rubber,It's More Resistant To Cold And Heat ,Can Adapt To Harsh Weather And Environment. All Fuel Filler Cap Are Tested Before Leaving The Factory To Ensure That The Product Quality Meets The Standards.Provides A Tight Seal To Keep Your Vehicle's Fuel Tank Closed, Safety Your Vehicle's Occupants, Fuel Economy And Reduce Vapor Emissions！
- 【After-Sales Service】- Establish Strict Quality Control Standards, 1 Year Warranty, Buy With Confidence!If you have any questions about Fuel Filler Cap, please contact us, we will help you deal with it as soon as possible！
$9.76
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SaleBestseller No. 10
Toyota Fuel Tank Cap - 77300-07030
- Fuel Tank Cap
- Guaranteed against poor workmanship and material defects
- Genuine OEM Factory Original part
- Direct Fit
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 won’t 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.