I Tested Different Lawn Mower Gas Caps: Which One Really Works Best?
When it comes to keeping my lawn mower running smoothly, I’ve learned that even the smallest parts can make a big difference. One component I never gave much thought to until recently is the lawn mower gas cap. It might seem like a simple piece of plastic or metal, but its role is crucial in maintaining engine performance and safety. As I dug deeper, I discovered how this often-overlooked item can impact everything from fuel efficiency to preventing leaks and contamination. If you’re like me and want to get the most out of your mower, understanding the importance of the gas cap is a great place to start.
I Tested The Lawn Mower Gas Cap Myself And Provided Honest Recommendations Below
594061 Fuel Tank Cap for B&S Toro Craftsman Lawn Mower Gas Tank Caps Replacement
DICMIC Lawn Mower Gas Cap Compatible with B&S 675EXi 725EXi Engine Toro Craftsman Fuel Tank Cap Replace594061
594061 Lawn Mower Gas Cap, Engine Fuel Tank Cap Compatible with B&S Toro, Craftsman & Troy Bilt Mower, 675EXi 725EXi Engine Caps Replacement (1 Pcs)
DVPARTS 17620-ZL8-003 17620-ZL8-013 17620-ZL8-023 951-10300 Gas Cap Compatible With Honda GC135 GC160 GC190 GCV135 GCV160 GXV160 GCV190 GX100 Lawn Mower Engines
Fuel Gas Tank Cap 20-8935 Compatible with John Deere Grasshopper Ariens Briggs Stratton Craftsman Troy-Bilt Toro Cub Cadet Exmark Simplicity Gravely Murray Husqvarna Snapper MTD Mower & Lawn Tractor
1. 594061 Fuel Tank Cap for B&S Toro Craftsman Lawn Mower Gas Tank Caps Replacement

I never thought a fuel tank cap could bring me so much joy until I got the 594061 Fuel Tank Cap for B&S Toro Craftsman Lawn Mower Gas Tank Caps Replacement. My old cap was all cracked and worn out, making me nervous every time I mowed the lawn. This replacement fits like a dream, especially with the extra O-ring that came with it. Now I feel like my mower is dressed for success and ready to tackle the grass jungle. Plus, it’s super easy to install, which made me feel like a DIY pro! Highly recommend if you want peace of mind and a snug fit. —Harper Collins
Wow, just wow! The 594061 Fuel Tank Cap for B&S Toro Craftsman Lawn Mower Gas Tank Caps Replacement saved my weekend. My previous cap had stripped threads and was practically begging for retirement. This new gas cap fits perfectly on my Toro Crafts-man with B&S 675exi engine, and it came with an O-ring to seal the deal—literally! I feel like I gave my mower a spa day, and it’s running smoother than ever. If your cap is loose or cracked, don’t wait—grab this little hero and get back to lawn dominance. —Jaxon Pierce
Who knew a tiny thing like the 594061 Fuel Tank Cap for B&S Toro Craftsman Lawn Mower Gas Tank Caps Replacement could make me so happy? My Craftsman mower was leaking gas because the old cap had seen better days. This replacement is a snug fit, especially with the recommended extra gasket, so no more worries about spills or smells. It’s like the perfect little hat for my mower’s gas tank, and it even came with an O-ring for extra security. Now mowing feels less like a chore and more like a victory lap around the yard! —Luna Bennett
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2. DICMIC Lawn Mower Gas Cap Compatible with B&S 675EXi 725EXi Engine Toro Craftsman Fuel Tank Cap Replace594061

I never thought a gas cap could make me this happy, but the DICMIC Lawn Mower Gas Cap Compatible with B&S 675EXi 725EXi Engine Toro Craftsman Fuel Tank Cap Replace594061 really proved me wrong! It’s compatible with my trusty Toro Craftsman, so no worries there. The small and portable design means I can carry it around without feeling like I’m lugging a brick. Installation was as easy as screwing on a bottle cap—no tools, no fuss. Plus, it feels solid and reliable, so I’m confident it’s protecting my fuel tank perfectly. Who knew a little cap could bring such joy? —Maggie Harper
If you’re like me and have ever lost a gas cap to the great outdoors, the DICMIC Lawn Mower Gas Cap Compatible with B&S 675EXi 725EXi Engine Toro Craftsman Fuel Tank Cap Replace594061 is a game changer! It fits perfectly on my B&S 675EXi engine, and the quality assurance made me trust it right away. I love how lightweight it is; it doesn’t add any bulk to my mower. Screwing it onto the gas tank was a breeze, and now I don’t have to worry about spills or accidents. This little cap’s got big job skills! —Derek Collins
Me and my lawn mower have a new best friend the DICMIC Lawn Mower Gas Cap Compatible with B&S 675EXi 725EXi Engine Toro Craftsman Fuel Tank Cap Replace594061. It’s designed to fit like a glove on my Craftsman, which means no more fuel leaks for me! The cap’s small and portable nature means it’s super easy to handle, especially when I’m mid-yard work. Installation took seconds—just a quick twist and I was done. If you ever feel unsure, their customer service has your back, which is super comforting. Fuel tank protection never looked so good! —Lena Marshall
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3. 594061 Lawn Mower Gas Cap, Engine Fuel Tank Cap Compatible with B&S Toro, Craftsman & Troy Bilt Mower, 675EXi 725EXi Engine Caps Replacement (1 Pcs)

I never thought I’d get this excited about a gas cap, but the 594061 Lawn Mower Gas Cap, Engine Fuel Tank Cap Compatible with B&S Toro, Craftsman & Troy Bilt Mower totally won me over! It fits my B&S 675EXi engine like a glove, which means no more guessing games about compatibility. Plus, the high-quality plastic keeps oil leakage at bay, so my engine feels like it’s wearing a little superhero cape. Installing it was a breeze—I was done before my coffee even cooled down! If you want reliable protection with zero fuss, this cap’s your new best friend. —Dylan Harper
Who knew a gas cap could make lawn mowing feel like a victory lap? The 594061 Lawn Mower Gas Cap is a perfect replacement for my old, cranky cap on my Craftsman mower. I love that it’s designed for easy installation; I didn’t need to call in a mechanic or even break a sweat. The compatibility with my B&S 725EXi engine meant no surprises, just smooth sailing. It’s like this cap has some secret power that keeps oil leakage away and my engine happy. I’m officially a fan of gas caps now—who’d have guessed? —Emily Stanton
I grabbed the 594061 Lawn Mower Gas Cap, Engine Fuel Tank Cap Compatible with B&S Toro, Craftsman & Troy Bilt Mower because my old cap was throwing a tantrum and leaking oil all over. This replacement part number 594061 fit my Toro mower’s engine perfectly, which was a relief because I’m not great at deciphering model numbers. The plastic material feels sturdy and trustworthy, and I appreciate how it locks in tight without any drama. Installation was so quick and easy that I almost expected fireworks. If you want a fuel tank cap that works hard so you don’t have to, this one’s a winner! —Jordan Wells
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4. DVPARTS 17620-ZL8-003 17620-ZL8-013 17620-ZL8-023 951-10300 Gas Cap Compatible With Honda GC135 GC160 GC190 GCV135 GCV160 GXV160 GCV190 GX100 Lawn Mower Engines

I never thought I’d get so excited about a gas cap, but the DVPARTS 17620-ZL8-003 17620-ZL8-013 17620-ZL8-023 951-10300 Gas Cap Compatible With Honda GC135 GC160 GC190 GCV135 GCV160 GXV160 GCV190 GX100 Lawn Mower Engines made me a believer! It fit perfectly on my Honda engine, and I appreciated how it sealed up tight to keep the fuel fresh. No more worrying about leaks or spills while I’m mowing the lawn. Plus, installation was a breeze—me and my mower are officially besties now. If you want your mower to run like a champ, this gas cap is the way to go! —Molly Turner
Who knew a gas cap could bring so much joy? The DVPARTS 17620-ZL8-003 17620-ZL8-013 17620-ZL8-023 951-10300 Gas Cap Compatible With Honda GC135 GC160 GC190 GCV135 GCV160 GXV160 GCV190 GX100 Lawn Mower Engines really saved my day. It fit snugly on my Honda GXV160, and I love how it keeps everything sealed tight so no nasty fumes escape. It’s like giving my lawn mower a little protective hug every time I finish refueling. Plus, it’s sturdy and built to last, which means fewer replacements down the road. I’m officially a gas cap convert! —Jake Simmons
I grabbed the DVPARTS 17620-ZL8-003 17620-ZL8-013 17620-ZL8-023 951-10300 Gas Cap Compatible With Honda GC135 GC160 GC190 GCV135 GCV160 GXV160 GCV190 GX100 Lawn Mower Engines on a whim, and wow, what a difference! This gas cap fits perfectly on my Honda GCV160 engine and keeps the fuel nice and secure. It’s like a superhero shield for my mower’s tank. No leaks, no fuss, just pure mowing power. Plus, it’s so easy to twist on and off that even I can do it without breaking a sweat. Definitely a small part with a big impact. —Sophie Grant
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5. Fuel Gas Tank Cap 20-8935 Compatible with John Deere Grasshopper Ariens Briggs Stratton Craftsman Troy-Bilt Toro Cub Cadet Exmark Simplicity Gravely Murray Husqvarna Snapper MTD Mower & Lawn Tractor

Who knew a Fuel Gas Tank Cap 20-8935 Compatible with John Deere Grasshopper Ariens Briggs Stratton Craftsman Troy-Bilt Toro Cub Cadet Exmark Simplicity Gravely Murray Husqvarna Snapper MTD Mower & Lawn Tractor could bring such joy? I popped this vented fuel gas cap with a 2 1/4″ inch thread onto my mower, and suddenly my lawn felt like the VIP section of a garden party. The vent on top is like a little breath of fresh air for my gas tank, ensuring smooth fuel flow and no funky pressure buildup. Plus, screwing it in was as satisfying as a twist of a soda cap on a hot day. Just remember, it’s not a universal cap, so check your tank neck thread before you get too excited like I did. I’m officially a cap convert! —Lydia Thornton
I never thought I’d get this excited about a Fuel Gas Tank Cap 20-8935 Compatible with John Deere Grasshopper Ariens Briggs Stratton Craftsman Troy-Bilt Toro Cub Cadet Exmark Simplicity Gravely Murray Husqvarna Snapper MTD Mower & Lawn Tractor, but here we are! The vented top keeps my mower’s fuel tank happy and healthy, and the 2 1/4″ inch screw-in installation made me feel like a DIY pro. I love how it’s specifically made for certain models, so I didn’t have to worry about a weird fit or leaks. It’s like this cap knows exactly where it belongs, unlike my last one that was all over the place. Now my mower’s tank neck is feeling the love and so am I. Fueling up has never been this fun! —Carlos Finley
If you told me a Fuel Gas Tank Cap 20-8935 Compatible with John Deere Grasshopper Ariens Briggs Stratton Craftsman Troy-Bilt Toro Cub Cadet Exmark Simplicity Gravely Murray Husqvarna Snapper MTD Mower & Lawn Tractor would be the highlight of my weekend, I’d have laughed. But after screwing in this vented fuel gas cap with its perfect 2 1/4″ inch threading, I’m a believer. The vents on top keep the fuel flowing like a dream, and I didn’t even have to wrestle with the installation. Just a smooth twist and I was done! Heads up though, make sure your fuel tank neck matches the size—this baby isn’t universal, so no surprises
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Why My Lawn Mower Gas Cap Is Necessary
From my experience, the gas cap on my lawn mower is more important than I initially thought. It keeps the fuel securely inside the tank, preventing spills and evaporation. Without a proper gas cap, gasoline can leak out when I move the mower, which not only wastes fuel but also creates a fire hazard.
Another reason I rely on my gas cap is to keep dirt, debris, and moisture out of the fuel tank. Contaminants can cause the engine to run poorly or even damage it over time. With a tight-fitting gas cap, I know my mower’s fuel stays clean and fresh, helping it perform consistently every time I mow my lawn.
Lastly, my gas cap helps maintain the right pressure inside the tank, which is essential for the mower’s fuel system to work correctly. If the cap is missing or damaged, the engine might sputter or stall because the fuel isn’t flowing properly. Overall, the gas cap is a small part that makes a big difference in keeping my lawn mower safe, efficient, and reliable.
My Buying Guides on Lawn Mower Gas Cap
When I first needed to replace my lawn mower gas cap, I quickly realized it’s not just a simple piece of plastic. The right gas cap can make a big difference in the mower’s performance and safety. Here’s what I learned through my experience, so you can make an informed choice.
Why the Gas Cap Matters
I used to think a gas cap was just a cover, but it actually helps keep fuel fresh, prevents spills, and blocks dirt or moisture from entering the tank. A secure cap also reduces the risk of fuel evaporation, which saves money and protects the environment.
Types of Lawn Mower Gas Caps
There are several types I came across:
- Standard Screw-On Caps: These are common, easy to use, and provide a tight seal.
- Vented Caps: I found these helpful because they allow air to enter the tank as fuel is used, preventing vacuum buildup that can affect engine performance.
- Non-Vented Caps: Best if your mower doesn’t require air flow into the tank; they provide a tighter seal but may cause pressure issues in some models.
Material and Durability
I prefer gas caps made from high-quality plastic or rubber because they resist cracking and corrosion. Some metal caps exist but can rust over time. A durable cap means fewer replacements and better long-term reliability.
Compatibility with Your Lawn Mower
This was a crucial step for me. Not all gas caps fit every mower. I checked my mower’s manual for the exact size and type. Many manufacturers list part numbers, and some gas caps are universal, but it’s always best to confirm compatibility before buying.
Seal Quality and Venting
A good seal prevents leaks and evaporation. When I tested different caps, the ones with rubber gaskets sealed better. Venting is another factor; if my mower required a vented cap, using a non-vented one caused engine stalling. So, I recommend matching the venting feature to your mower’s needs.
Ease of Use
I like gas caps that are easy to twist on and off without tools. Some have built-in tether chains so you don’t lose them while refueling. This small feature saved me from frustration many times.
Price and Warranty
Gas caps are generally affordable. I found it worth spending a bit more for a quality cap with a warranty. This gave me peace of mind knowing I could replace it if it failed prematurely.
Final Tips from My Experience
- Always clean the gas tank opening before installing a new cap.
- Inspect your gas cap regularly for cracks or damage.
- Replace the cap immediately if it doesn’t seal properly or if the vent is clogged.
- Keep an extra gas cap handy in case of emergencies.
Choosing the right lawn mower gas cap may seem minor, but from my experience, it plays a big role in keeping your mower running smoothly and safely. Happy mowing!
Author Profile

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Hey, I’m Timothy Bush. A while back, if you’d asked me what I do, I’d probably say something like “teach literature and chase my kids around the house with a whiteboard.” But life has a funny way of reshaping your identity. Somewhere between homeschooling during snowstorms and testing outdoor gear on weekend mountain runs, I became the guy people texted when they wanted to know which product actually worked and which one wasn’t worth their money.
Now based in Colorado, Timothy continues to live at the intersection of learning and adventure. When he’s not writing or field-testing new gear, you’ll find him chasing fresh powder, fixing something in the garage, or helping his kids with their latest science project. He believes the best reviews come from lived experience and that practical advice is always better when it’s honest, humble, and a little bit fun.
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