We consider a plastic gas cap to be a worthy investment in the long run. Let’s take you step by step, type by type, and find the best plastic gas cap for you.

Our review process: Show/Hide

Our Top Picks:

Best Overall: Buy: Acdelco Plastic Gas Cap READ REVIEW

Best With Lock: Buy: Xjdamz Plastic Gas Cap READ REVIEW

Best With Part Number: Buy: Smartisan Plastic Gas Cap READ REVIEW

Best For Fast Delivery: Buy: Gates Plastic Gas Cap READ REVIEW

Best With Correct Size: Buy: Ez-Pour Plastic Gas Cap READ REVIEW

Best For Easy Install: Buy: Rovike Plastic Gas Cap READ REVIEW

Best For Gas Cap Problem: Buy: Oner Auto Parts Plastic Gas Cap READ REVIEW

Best For Exact Fit: Buy: Kp Kool Products Plastic Gas Cap READ REVIEW

Best For Long Service Life: Buy: Yithsway Plastic Gas Cap READ REVIEW

Best Overall: Acdelco Plastic Gas Cap

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The Acdelco plastic gas cap has good features for the price point. The Acdelco plastic gas cap is made with high-quality products, is best for good fit and it seals perfectly. Acdelco maintenance and repair parts are tested to rigorous standards and backed by gm, so you and your vehicle can go the distance. Moreover, the cap worked perfectly and it came with a direct fit.

The Cap is the premier supplier of gm original equipment (oe) automotive replacement parts, as well as a trusted provider of premium aftermarket parts for most other makes and models. In addition, it installed easily and it has solved error code. Most importantly, the Acdelco Plastic Gas Cap is designed with the professional in mind.

Almost all buyers opine that the cap can be used on a 1998 Saturn sl. Further, a few say that the cap will not affect the performance of the vehicle, so oh well. Moreover, a few strongly agree that the cap is a perfect replacement for a 2000 chevy express 1500 van gas cap. In conclusion, the tone of buyers is very positive and we believe that the cap suits the purpose.

• This fits great and there is no way it's leaking, so that's good.
• This works very well, makes for a great replacement and it makes for fast, easy shipping.
• International renown for our diverse range of award-winning products.
• It takes literally 2 minutes to change the old tether cap assembly for this one.

Best With Lock: Xjdamz Plastic Gas Cap

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The Xjdamz Plastic Gas Cap might be a relatively new release, but it's still nothing short of impressive this year, thanks to multiple price cuts and added new features over the past few months. The xjdamz plastic gas cap is very functional, It allows for a great fit and has a gas cap style. Make sure this fits by entering your model number. Also, the cap fits perfectly and it looks awesome.

Above all, the xjdamz plastic gas cap is magnetic and it is applicable.

Almost all customers quickly discovered that the cap came with something like this. In addition, a few also found that the cap fits a little snug, so it was kind of challenging to remove. Furthermore, a few also found that the cap fits snug with a 1/4 turn lock in place.

• A strong permenant neodymium magnet holds the cap to the truck while you fill up.
• This fits 2020 ram 2500 diesel.
• ✪ lifetime warranty-if you have any problems, please feel free to contact us.
• This is crafted with anodized billet aluminum which won't be impacted even after long-term exposure.

Best With Part Number: Smartisan Plastic Gas Cap

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If you often find yourself confused about the appropriate and satisfactory cap, Smartisan Plastic Gas Cap should be your first option for buying. The smartisan plastic gas cap makes for easy installation and it is great for exact fit. Make sure this fits by entering your model number. Further, the cap fixed the problem and it is designed for a great price.

The cap fits perfectly, is fitment and it went on quickly. Most importantly, the smartisan plastic gas cap works with part number and it is designed for high reliability.

Almost all customers agree that the cap is working fine, but then the service light started coming on. Moreover, they also found that the cap is the 1st and easiest fix.

• This is compatible with jeep vehicles.
• 100% quality inspected before shipment in factory.
• Easy installation and high reliability. It could replace the original gas cap directly.
• This is easy to install part.

Best For Fast Delivery: Gates Plastic Gas Cap

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Gates is known for creating pragmatic and minimalist caps for people on the go, and its line of Gates Plastic Gas Caps definitely falls in line with that reputation. The gate plastic gas cap is great for high quality and it is good for fast delivery. The Manufacturer says: We invest continually in r&d and technology, so our products not only outperform industry standards. Moreover, it can be bought for a cheap price, is easy to replace and it passed emissions.

The cap is vented anti-surge and it comes with a correct fit. Moreover, the cap allows for a great fit and it is very durable. Lastly, the gate plasticgas cap is good for country of origin, cheaper too and it seals perfectly.

Most customers agree that the cap is a good quality item. And, a few strongly agree that the cap is perfect and solved the check engine light problem. Moreover, a few strongly agree that the gascap error light coming on in a newer Grand Cherokee.

• This has been used for 5 months.
• This works well on 2008 dodge ram.
• Shell diameter 2.78 in. neck diameter: 1.78 inches. Cap depth: 2.41 inches.
• This is good for freezing cold snow.

Best With Correct Size: Ez-Pour Plastic Gas Cap

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The features department is where the Ez-Pour Plastic Gas Cap truly manages to shine. The ez-pour plastic gas cap fits perfectly, is exactly fit and it works as advertised. The manufacturer says: Even our one gas cap will serve you for the longest time. This replacement gas can cap is made out of high - quality plastic material, so it remains sturdy, durable, and unbreakable.

Lastly, the ez-pour plastic gas cap fits well. is great for customer service and it makes for a great replacement.

Almost all customers agree that the cap is not vented so be aware of local rules and regulations. Also, they also found that the cap fits any gas cantainer to add to that, it is good for long term storage. Further, a few strongly agree that the cap is too loose and will jump the threads when trying to tighten enough to stop leaks.

• This is a great way to carry gas without spilling.
• These fit and appear to screw down tightly.
• These are sold in a 6 pack but they work great so far.
• It takes two lawn tractors to handle it.

Best For Easy Install: Rovike Plastic Gas Cap

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Rovike offers a variety of caps for personal choice and yet maintains quality in all the variants. The Rovike Plastic Gas Cap comes with ram, dodge, chrysler, jeep and more vehicles, Not all of the vehicles are listed, Please check the drop down bar to check the compatible. Make sure this fits by entering your model number. And, this is great for high quality and it is important.

The cap worked perfectly. is made for easy installation and it is crafted with premium material. Most importantly, the rovike plastic gas cap is good for simple instal, is compatible with the following vehicles and it is made for good value.

Almost all customers opine that the cap is great to keep the gas tank compression. Also, a few strongly agree that the cap is a perfect gascap strap clicked in place, "all-good. Further, a few say that the cap is a quick and easy fix... pry out the old broken piece and pop it in. In short, at the price, they believe that they got a steal of a deal with it.

• This is made for easy install and it makes for a great replacement.
• This is designed for exact replacement and it is perfect for a good deal.
• The The engine light turned off seconds after installing the new cap.
• 52030377ab, 5278632ag, 52030377aa, fuel tank filler cap is 100% rigorously tested before shipping.

Best For Gas Cap Problem: Oner Auto Parts Plastic Gas Cap

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Next on the list, we've got yet another cap that manages to win our hearts. It's the Oner Auto Parts Plastic Gas Cap and it's widely considered as the cap that has the most suitable features. The oner auto parts plastic gas cap is made of reinforced abs plastic and high-quality sealing rubber, It's more resistant to cold and heat, and can adapt to harsh weather and the environment. 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. In addition, it stayed off, making for a great buy and it is fitment.

The cap is designed for high performance, comes in for replacement part and it is made with quick shipping. Finally, the oner auto parts plasticgas cap is compatible with part number and it is very happy.

Most buyers agree that the cap is perfect for the 2012 Dodge durango. Moreover, a few say that the cap fits like the original. Additionally, fits car specs quality is good.

• This allows for easy installation, is flex and it is made for exact fit.
• This is perfect for exact replacement and it is great for a great price.
• This is compatible with ram vehicles.

Best For Exact Fit: Kp Kool Products Plastic Gas Cap

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The Kp Kool Products Plastic Gas Cap is capable of outshining several other caps featured in this list in overall features in its price range. The kp kool products plastic gas cap is made for quick delivery, is convenient and it fits the model. Please note that there is no filter or strainer included. In addition, it comes with accessories such as a screw cap, vent plug, stripe cap, stopper cap and gasket.

Above all, the kp kool products plastic gas cap is made with prime hdpe plastic.

Almost all customers quickly discovered that the cap definitely needs revision to add to that it is a perfect fit for old gas cans. Also, a few strongly agree that the cap is a perfectly serviceable replacement spout and one that fits the older 2” can opening. Moreover, a few say that the ring fits fine and the cap also works fine. The problem is the angle of the spout. With no doubts, this cap passed the test and had very satisfied buyers eager to share their experience.

• This fits pre-ban chilton and craftsman can only.
• Why throw away old gas cans? You can use them with new aftermarket spout kits.
• This fits perfectly, is made for good replacement and it fits well.
• Made with prime hdpe plastic. It is very rugged and quality spout.

Best For Long Service Life: Yithsway Plastic Gas Cap

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We would, of course, be remiss if we didn't mention Yithsway Plastic Gas Cap for daily usage. The yithsway plastic gas cap is designed for high performance and it is compatible with buick. For details, please confirm your vehicle information in the compatibility section and the description below. Also, the cap is not a genuine part, it's an aftermarket replacement part.

Most importantly, the yithsway plastic gas cap is good for long service life and it is brand new.

• Most fuel caps are sealed by turning them until you hear a clicking sound.
• Good brand reputation.