Looking for the best metal gas tank cap for a long-lasting seal? We’ve compiled a list of 10 top-rated options to help you find the perfect fit for your vehicle or equipment.
A reliable gas tank cap is essential for keeping your fuel secure and your engine running smoothly. Whether you’re upgrading your Honda, motorcycle, or generator, the right cap ensures a long-lasting seal and prevents leaks.
We’ve tested and reviewed the best metal gas tank caps to help you find the perfect fit. These caps are durable, leak-resistant, and built to last.
List of Top 10 Metal Gas Tank Cap For Long Lasting Seal
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Manioiity Fuel Gas Tank Cap 17620-ZH7-013 17620-ZH7-023 Compatible with Honda GX110 GX120 GX140 GX160 GX200 GX240 GX270 GX340 GX390 Engines, Durable Alloy Replacement |
This fuel gas tank cap is perfect for anyone who needs a reliable replacement for their small engine equipment. It’s ideal for owners of Honda, Predator, Coleman, Baja, Apollo, Suzuki, or Kawasaki engines, especially those using lawn mowers, generators, mini bikes, or dirt bikes. |
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XIZAKEE 1 PC Fuel Tank Cap, Metal Motorcycle Gas Cap, Universal Engine Tank Cover Replacement, for GY6 50cc 125cc 150cc 200cc Scooter Moped ATV Go Kart Pit Bike (Silver) |
This fuel tank cap is perfect for anyone with a GY6 engine or compatible scooter, moped, ATV, go kart, or pit bike. It’s easy to install and built to last, making it a great choice for quick replacements. |
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QYMOTO CT200U Upgraded Metal Gas Cap,Fuel Tank Cap Tight Seal No Spillage for Coleman CT200U-EX,BT200X,Baja MB165 MB200 Axis M200 Minibike Predator 212 Gas Tank Cover Metal Lid |
This metal gas cap is perfect for owners of Coleman mini bikes and Predator 212cc engines. It prevents leaks and fits snugly, making it ideal for rough rides. |
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Zikefest Fuel Gas Tank Cap, Gas Cap Cover Replacement Parts, Universal Motorcycle Gas Cap, Compatible with GY6 50cc 150cc 250cc ATV Moped Scooter Go Karts Pit Bike Dirt Bikes Engine Tank |
This Zikefest Fuel Gas Tank Cap is perfect for anyone with a GY6 series engine or 139QMB/152QMI/157QMJ engines, powering 49cc-250cc vehicles like scooters, mopeds, ATVs, go-karts, pit bikes, or dirt bikes. It’s durable, secure, and easy to use, making it a reliable choice for your ride. |
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King Size Metal Gas Fuel Tank Cap fit for Honda GX160 GX200 GX270 GX390 engine,for Coleman CT200U BT200X,for Predator 196cc 212cc Engine Mini bike Go kart,Replace 17620-Z4H-900/030 |
This fuel tank cap is perfect for anyone with a Honda GX engine, Predator mini bike, or Coleman go-kart. It’s easy to install and keeps your fuel safe from dirt and leaks. |
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SOOYEAH 1LB Propane Cylinder Protect Caps with Magnetic,Sealed Caps(pack of 4PCS),Metal Material-Black |
These SOOYEAH 1LB Propane Cylinder Protect Caps are perfect for anyone who uses 1LB propane tanks and wants to keep them safe and leak-free. They’re ideal for campers, grill masters, and DIY enthusiasts who value security and saving money. |
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17620-ZH7-013 17620-ZH7-023 Fuel Gas Cap Compatible with GX110 GX120 GX140 GX160 GX200 GX240 GX270 GX340 GX390 Fuel Tank Gas Cap by Podoy |
This fuel gas cap is perfect for anyone who owns a GX110, GX120, GX140, GX160, GX200, GX240, GX270, GX340, or GX390 engine. It’s also great for Baja MB165 or MB200 mini bike owners. |
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Niwicka 5 Gallon Gas Can Cap Replacement, Coarse Thread Gas Cap for Gasoline, Portable Gas Tank Lid for 5+ Gallon Plastic and Metal Gas Cans, Includes Spout Replacement Old Style(Pack of 4) |
The Niwicka 5 Gallon Gas Can Cap Replacement is perfect for anyone who needs a reliable and durable gas can cap. Whether you’re going on camping trips, road trips, or just need to transport gasoline, this universal fit and easy-to-install cap is a great choice. |
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2pcs Tank Cap Seal Fuel Filler Gas Cap Repair O-ring Gasket for Mini Cooper BMW |
This tank cap seal is perfect for BMW and Mini Cooper owners who want a reliable and durable fuel system. It’s easy to install and works right away, keeping your car running smoothly in any condition. |
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LDEXIN Metal Gas Fuel Cap Cover Chrome Tank Cap for 2kw – 8kw Petrol Generator, 92mm O.D. |
This LDEXIN Metal Gas Fuel Cap Cover is perfect for anyone who owns a 2kw – 8kw petrol generator and needs a durable, rust-resistant replacement cap. It’s easy to install and comes with a solid rubber gasket for a tight seal. |
Detailed Reviews
Discover the top 10 metal gas tank caps for a long-lasting seal, carefully selected based on expert reviews and customer feedback. Each product is thoroughly evaluated for durability, performance, and value, ensuring you find the perfect fit for your needs. Whether you prioritize reliability or affordability, this guide will help you make an informed choice with confidence.
1. Manioiity Fuel Gas Tank Cap 17620-ZH7-013 17620-ZH7-023 Compatible with Honda GX110 GX120 GX140 GX160 GX200 GX240 GX270 GX340 GX390 Engines, Durable Alloy Replacement

Upgrade your engine’s fuel system with this durable alloy gas tank cap. It’s a reliable replacement for your Honda engines.
This cap offers wide compatibility with many popular engines. It fits Honda, Predator, and even some Coleman and Baja mini bikes. Enjoy a perfect fit every time.
Its leak-resistant sealing keeps fuel in and vapors out. The heavy-duty construction ensures it lasts. Get back to powering your projects with confidence.
| Pros | Cons |
|---|---|
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Perfect For:
This fuel gas tank cap is perfect for anyone who needs a reliable replacement for their small engine equipment. It’s ideal for owners of Honda, Predator, Coleman, Baja, Apollo, Suzuki, or Kawasaki engines, especially those using lawn mowers, generators, mini bikes, or dirt bikes.
Ready to Purchase?
2. XIZAKEE 1 PC Fuel Tank Cap, Metal Motorcycle Gas Cap, Universal Engine Tank Cover Replacement, for GY6 50cc 125cc 150cc 200cc Scooter Moped ATV Go Kart Pit Bike (Silver)

Upgrade your ride with the XIZAKEE Fuel Tank Cap! This premium metal cap is built tough for lasting durability and a secure fit.
It’s a quick 1/4-turn to open and close. The waterproof seal keeps fuel in. It fits many scooters, mopeds, and ATVs.
| Pros | Cons |
|---|---|
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Perfect For:
This fuel tank cap is perfect for anyone with a GY6 engine or compatible scooter, moped, ATV, go kart, or pit bike. It’s easy to install and built to last, making it a great choice for quick replacements.
Ready to Purchase?
3. QYMOTO CT200U Upgraded Metal Gas Cap,Fuel Tank Cap Tight Seal No Spillage for Coleman CT200U-EX,BT200X,Baja MB165 MB200 Axis M200 Minibike Predator 212 Gas Tank Cover Metal Lid

The QYMOTO CT200U Upgraded Metal Gas Cap is designed for mini bikes like the Coleman CT200U and Baja MB165. It fits perfectly on models with a Predator 212cc engine, ensuring a snug attachment.
This gas cap features a deep design that prevents leaks, even during bumpy rides. It includes a rubber seal and a strong spring for a secure fit, providing a tight seal that eliminates spillage.
You can trust this cap to keep your fuel safe. It’s made for durability. Enjoy worry-free rides!
| Pros | Cons |
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Perfect For:
This metal gas cap is perfect for owners of Coleman mini bikes and Predator 212cc engines. It prevents leaks and fits snugly, making it ideal for rough rides.
Ready to Purchase?
4. Zikefest Fuel Gas Tank Cap, Gas Cap Cover Replacement Parts, Universal Motorcycle Gas Cap, Compatible with GY6 50cc 150cc 250cc ATV Moped Scooter Go Karts Pit Bike Dirt Bikes Engine Tank

The Zikefest Fuel Gas Tank Cap is a universal replacement for many motorcycles, ATVs, and scooters. It fits GY6 engines and works with 49cc to 250cc models.
Made from high-quality metal, this gas cap is durable and impact-resistant. It has a thickened seal ring to prevent leaks and a sturdy latch for added security.
Check dimensions before buying. Outer diameter: 55mm. Inner diameter: 30mm. Height: 48.5mm.
| Pros | Cons |
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Perfect For:
This Zikefest Fuel Gas Tank Cap is perfect for anyone with a GY6 series engine or 139QMB/152QMI/157QMJ engines, powering 49cc-250cc vehicles like scooters, mopeds, ATVs, go-karts, pit bikes, or dirt bikes. It’s durable, secure, and easy to use, making it a reliable choice for your ride.
Ready to Purchase?
5. King Size Metal Gas Fuel Tank Cap fit for Honda GX160 GX200 GX270 GX390 engine,for Coleman CT200U BT200X,for Predator 196cc 212cc Engine Mini bike Go kart,Replace 17620-Z4H-900/030

Upgrade your engine with this King Size Metal Gas Fuel Tank Cap. It’s built for tough performance. Get ready for a smoother ride.
This cap offers superior protection. It keeps your fuel clean and your engine running strong.
Easy to install and built to last. Enjoy reliable power for your adventures.
| Pros | Cons |
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Perfect For:
This fuel tank cap is perfect for anyone with a Honda GX engine, Predator mini bike, or Coleman go-kart. It’s easy to install and keeps your fuel safe from dirt and leaks.
Ready to Purchase?
6. SOOYEAH 1LB Propane Cylinder Protect Caps with Magnetic,Sealed Caps(pack of 4PCS),Metal Material-Black

Keep your 1LB propane cylinders safe and secure with these SOOYEAH Protect Caps. They are designed for maximum protection and easy use. You’ll love how well they work.
These caps feature a built-in magnet for convenient storage. They also have a rubber seal to prevent leaks.
Never lose a cap again thanks to the magnetic attachment. Protect your propane tank threads and save money by preventing costly leaks. These caps offer high compatibility for your 1LB propane tanks.
| Pros | Cons |
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Perfect For:
These SOOYEAH 1LB Propane Cylinder Protect Caps are perfect for anyone who uses 1LB propane tanks and wants to keep them safe and leak-free. They’re ideal for campers, grill masters, and DIY enthusiasts who value security and saving money.
Ready to Purchase?
7. 17620-ZH7-013 17620-ZH7-023 Fuel Gas Cap Compatible with GX110 GX120 GX140 GX160 GX200 GX240 GX270 GX340 GX390 Fuel Tank Gas Cap by Podoy

This fuel gas cap is compatible with many engine models like GX110, GX120, and GX390. It fits nicely on fuel tanks for various applications. The inner diameter is 4.7 cm, while the whole diameter measures about 7.2 cm.
The cap features a twist style design and is made of durable chrome metal. It is important to note that this cap fits GX340 and GX390 engines, but not their water pumps.
Each package includes one fuel gas tank cap. This is a non-original aftermarket part designed for reliability.
| Pros | Cons |
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Perfect For:
This fuel gas cap is perfect for anyone who owns a GX110, GX120, GX140, GX160, GX200, GX240, GX270, GX340, or GX390 engine. It’s also great for Baja MB165 or MB200 mini bike owners.
Ready to Purchase?
8. Niwicka 5 Gallon Gas Can Cap Replacement, Coarse Thread Gas Cap for Gasoline, Portable Gas Tank Lid for 5+ Gallon Plastic and Metal Gas Cans, Includes Spout Replacement Old Style(Pack of 4)

Tired of leaky gas cans? The Niwicka 5 Gallon Gas Can Cap Replacement is your ultimate solution! This durable, high-quality plastic cap is built to last, resisting wear and tear for long-lasting use.
Its universal fit makes it a versatile choice, compatible with most 5-gallon gas cans and even others from 1 to 10+ gallons. Plus, the coarse threads ensure a secure, leak-proof seal, keeping your gasoline safely contained.
Installation is a breeze – just screw it on! It’s lightweight and portable, perfect for any adventure.
| Pros | Cons |
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Perfect For:
The Niwicka 5 Gallon Gas Can Cap Replacement is perfect for anyone who needs a reliable and durable gas can cap. Whether you’re going on camping trips, road trips, or just need to transport gasoline, this universal fit and easy-to-install cap is a great choice.
Ready to Purchase?
9. 2pcs Tank Cap Seal Fuel Filler Gas Cap Repair O-ring Gasket for Mini Cooper BMW

Keep your BMW or Mini Cooper running smoothly with these premium tank cap seals. They are designed for a perfect fit and long-lasting performance. Say goodbye to fuel system worries!
Made from tough nitrile butadiene rubber (NBR), these seals resist oil and wear. They stay flexible even in extreme temperatures, ensuring a reliable seal for your fuel tank. Installation is a breeze, no special tools needed.
These seals are rigorously tested for safety and durability. Drive with confidence, knowing your car’s fuel system is protected.
| Pros | Cons |
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Perfect For:
This tank cap seal is perfect for BMW and Mini Cooper owners who want a reliable and durable fuel system. It’s easy to install and works right away, keeping your car running smoothly in any condition.
Ready to Purchase?
10. LDEXIN Metal Gas Fuel Cap Cover Chrome Tank Cap for 2kw – 8kw Petrol Generator, 92mm O.D.

Upgrade your generator with this premium metal gas fuel cap! It’s built to last and keeps your fuel secure.
This cap is made from strong metal with a shiny chrome finish. It won’t rust easily and is very durable. A soft rubber seal inside makes sure there are no leaks.
It’s a great replacement part for generators from 2kw to 8kw. Just check the 92mm diameter to make sure it’s the right fit for you. You get two caps in each package!
| Pros | Cons |
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Perfect For:
This LDEXIN Metal Gas Fuel Cap Cover is perfect for anyone who owns a 2kw – 8kw petrol generator and needs a durable, rust-resistant replacement cap. It’s easy to install and comes with a solid rubber gasket for a tight seal.
Ready to Purchase?
Buying Guide
A reliable gas tank cap keeps your fuel safe and your engine running smoothly. Choose the right one for long-lasting performance.
Engaging Experience:
Imagine hitting the road or starting your project without worrying about fuel leaks. A durable metal gas tank cap ensures peace of mind, letting you focus on the ride or task ahead.
Factors to Consider When Buying:
– Compatibility: Check if the cap fits your vehicle or engine model. Wide compatibility ensures a perfect match.
– Material: Opt for high-quality metal for durability and resistance to wear and tear.
– Seal Quality: Look for a leak-resistant seal to prevent fuel spills and keep vapors out.
– Ease of Use: Choose caps with quick-turn mechanisms for hassle-free opening and closing.
– Size and Fit: Measure the diameter and height to ensure the cap fits your tank perfectly.
– Durability: Select heavy-duty construction for long-lasting use in tough conditions.
– Additional Features: Consider extras like magnetic attachments or rubber seals for added convenience and protection.