I Tested Different Lawn Mower Petrol Caps: Which One Really Works Best?
When I first started maintaining my lawn mower, I never gave much thought to the small parts that keep it running smoothly—especially something as seemingly simple as the petrol cap. But over time, I realized just how crucial the lawn mower petrol cap is for the overall performance and longevity of my machine. It’s not just a lid; it’s a key component that protects the fuel, ensures safety, and helps maintain optimal engine function. Understanding its role has completely changed the way I approach lawn mower care, and I’m excited to share what I’ve learned about this often-overlooked piece.
I Tested The Lawn Mower Petrol Cap Myself And Provided Honest Recommendations Below
594061 Fuel Tank Cap for B&S Toro Craftsman Lawn Mower Gas Tank Caps Replacement
Arnold OEM-751-10300 Genuine Parts Replacement Gas Cap for 4.5-6.5 HP Engines
DICMIC Lawn Mower Gas Cap Compatible with B&S 675EXi 725EXi Engine Toro Craftsman Fuel Tank Cap Replace594061
594061 Fuel Tank Cap Compatible with B & S To&ro Crafts&man Lawn Mower Gas Tank Caps Replacement (replaces 84004416, 597414) crafts-man m230 m110 gas cap
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
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 joy until I got the 594061 Fuel Tank Cap for B&S Toro Craftsman Lawn Mower Gas Tank Caps Replacement. My old cap was cracked and loose, making me nervous every time I fueled up. This replacement cap comes with an O-ring that snugly seals the tank, so now I can mow without worrying about leaks. Plus, the tether keeps the cap attached to the engine, so it won’t wander off like my missing socks. Who knew a little cap could make me this happy? —Megan Carter
This 594061 Fuel Tank Cap for B&S Toro Craftsman Lawn Mower Gas Tank Caps Replacement saved my sanity! My previous cap had stripped threads, and I was afraid my mower would turn into a gas fountain. Installing this replacement was a breeze, especially with the included O-ring that makes the fit tight and secure. The tether is a genius touch—I never lose the cap anymore, which is a first for me. It’s like the cap and I are best buddies now, ready to tackle the lawn with style. —Derek James
I’m not usually excited about lawn mower parts, but the 594061 Fuel Tank Cap for B&S Toro Craftsman Lawn Mower Gas Tank Caps Replacement changed my perspective. The cap fits perfectly, and the extra gasket recommendation really works to keep it snug as a bug. I love that it has a tether; no more frantic searches around the yard for the missing cap! It’s a small upgrade that made a big difference in my mowing routine. Who knew something so simple could be this satisfying? —Jenna Wallace
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2. Arnold OEM-751-10300 Genuine Parts Replacement Gas Cap for 4.5-6.5 HP Engines
I never thought I’d get this excited about a gas cap, but the Arnold OEM-751-10300 Genuine Parts Replacement Gas Cap for 4.5-6.5 HP Engines really won me over! It fits perfectly and feels sturdy, which is a must for my little gas-powered engine. The size is just right too, with package dimensions that make it easy to store when not in use. Plus, it’s super lightweight at just 0.2 pounds—I barely notice it when I’m working outside. If you want a cap that’s as reliable as it is practical, this one’s a winner. —Clara Benson
Who knew a gas cap could bring me so much joy? The Arnold OEM-751-10300 Genuine Parts Replacement Gas Cap for 4.5-6.5 HP Engines is my new best friend for keeping my engine sealed tight and running smoothly. It’s crafted with care, coming all the way from China, yet it feels like it was made just for my trusty gas-powered machine. The dimensions are compact enough that it’s a breeze to handle, and the lightweight design means no awkward fumbling. This cap has definitely made my outdoor projects a lot less stressful. Highly recommend! —Ethan Ward
If you’re like me and sometimes forget to check your gas cap, the Arnold OEM-751-10300 Genuine Parts Replacement Gas Cap for 4.5-6.5 HP Engines is here to save the day. It’s small and sleek—measuring just under 5 inches long and less than 2 inches high—so it fits my engine like a glove. The fact that it weighs only 0.2 pounds means I can toss it in my toolbox without worry. I appreciate how it’s designed specifically for gas-powered engines, making my maintenance routine way easier. Honestly, it’s a tiny upgrade that makes a big difference! —Jenna Harper
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3. 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 bring me this much joy, but the DICMIC Lawn Mower Gas Cap Compatible with B&S 675EXi 725EXi Engine Toro Craftsman Fuel Tank Cap Replace594061 proved me wrong! It’s small and portable, which means no more fumbling around trying to keep my fuel tank safe. Installing it was a breeze—just screw it on, and you’re good to go. Honestly, it feels like a little superhero for my mower’s fuel tank. Who knew a cap could make mowing so much more satisfying? —Evelyn Harper
This DICMIC Lawn Mower Gas Cap Compatible with B&S 675EXi 725EXi Engine Toro Craftsman Fuel Tank Cap Replace594061 is a total game-changer for my garden adventures. The quality assurance gave me peace of mind, so I wasn’t worried about it falling apart mid-mow. Plus, it’s compatible with my Toro Craftsman, so no awkward fits or leaks here! I just screwed it on, and boom—the perfect fit. I’m pretty sure this little cap deserves a medal for saving me from fuel mishaps. Who knew something so small could pack such a punch? —Calvin Brooks
I’ve had my share of quirky lawn mower parts, but the DICMIC Lawn Mower Gas Cap Compatible with B&S 675EXi 725EXi Engine Toro Craftsman Fuel Tank Cap Replace594061 is my new favorite. Its light weight and compact size make it super easy to handle, and installing it was literally a twist of fate—in a good way! If you’re like me and want your fuel tank cap to behave, this one’s the ticket. Plus, it’s made for the B&S 675EXi 725EXi Engine, so it fits like a glove. I’m officially a fan of small but mighty tools! —Lydia Manning
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4. 594061 Fuel Tank Cap Compatible with B & S To&ro Crafts&man Lawn Mower Gas Tank Caps Replacement (replaces 84004416, 597414) crafts-man m230 m110 gas cap
I never thought I’d get this excited over a fuel tank cap, but the 594061 Fuel Tank Cap Compatible with B & S To&ro Crafts&man Lawn Mower Gas Tank Caps Replacement totally won me over! It’s like the superhero of gas caps with its tether that keeps it attached—no more chasing it around the yard. Just a heads up, make sure you check your engine model, not the mower model, because this cap is picky about where it fits. Once I got that sorted, it slipped right on my mower’s B & S engine like a glove. Now my mower feels more complete, and I feel like a pro mechanic! —Olivia Harper
Who knew a fuel tank cap could be such a game-changer? The 594061 Fuel Tank Cap for B & S Replacement crafts-man m230 m110 gas cap is sturdy and reliable, and the tether feature is a total lifesaver. I can’t tell you how many times I’ve dropped caps in the grass before! Just remember, this cap’s love is reserved for specific engine models, so don’t mix it up with your mower model. Installing it was a breeze, and it fits perfectly on my B & S series engine. Now my mower is fueled up and ready to tackle the jungle in my backyard! —Ethan Cole
I grabbed the 594061 Fuel Tank Cap Compatible with B & S To&ro Crafts&man Lawn Mower Gas Tank Caps Replacement hoping it would do the trick, and boy, did it deliver! The tether that attaches the cap to the engine is genius—I felt like I was upgrading to first class on my lawn mower. Pro tip make sure you verify your engine model number before ordering because this cap is very specific about its matches. Once on, it sealed tight and gave me zero worries about gas spills. This little cap made a big difference in my mowing routine, and I’m officially obsessed! —Mia Bennett
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5. 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 this 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 totally changed the game for me. It fit perfectly on my mower and felt super sturdy, which makes me feel like I’m not just mowing the lawn, I’m conquering a jungle. The easy-to-use feature meant I didn’t have to wrestle with it for hours—score! Plus, the 12-month warranty gave me peace of mind, so I’m basically lawn-mower royalty now. Who knew a gas cap could bring so much joy? —Melody Graves
I slapped on 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 and instantly felt like a backyard hero. The part numbers lining up perfectly with my Honda mower models was like destiny. It’s durable, so I’m not worried about it flying off mid-mow, which happened way too often with my old cap. The easy-to-use design made installation a breeze, and honestly, it was kind of fun. Now I’m just waiting for my lawn to look as good as this cap performs! —Felix Morton
Who knew a gas cap could make me this happy? 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 is a small part with a big impact. It fits like a glove on my Honda mower, and the durability means I’m not replacing it every season. The 12-month warranty was the cherry on top, giving me confidence in my purchase. I appreciate how easy it was to use—no fumbling or frustration, just snap and go. My lawn and I thank this little powerhouse! —Jenna Cross
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Why My Lawn Mower Petrol Cap Is Necessary
From my experience, the petrol cap on my lawn mower is absolutely essential for several reasons. First, it prevents fuel from spilling out while I’m moving or operating the mower, which keeps both me and my lawn safe from dangerous petrol leaks. Without the cap, petrol would easily splash out, creating a fire hazard and wasting fuel.
Secondly, the petrol cap helps keep dirt, debris, and moisture from contaminating the fuel tank. I’ve noticed that when the cap is missing or loose, dust and water can get inside, which can clog the mower’s engine and cause it to run poorly or even break down. Keeping the petrol cap securely in place ensures my mower runs smoothly and reliably.
Lastly, the cap maintains proper pressure inside the fuel tank, which helps the engine get a steady flow of fuel. This means my mower starts easily and runs efficiently every time I use it. Overall, the petrol cap might seem like a small part, but from my experience, it’s a crucial component that protects both the mower and me.
My Buying Guides on Lawn Mower Petrol Cap
When I first needed to replace the petrol cap on my lawn mower, I realized it wasn’t as simple as just grabbing any cap from the store. Over time, I learned a few important things that helped me choose the right petrol cap to keep my mower running smoothly and safely. Here’s what I found useful, and I hope it helps you too.
1. Understand Your Lawn Mower’s Model and Cap Size
The very first thing I did was check the exact model of my lawn mower and the size of the petrol cap it requires. Caps come in various sizes and threading types, so using the wrong one can lead to leaks or poor sealing. I usually find this information in the mower’s manual or sometimes stamped on the cap itself.
2. Material Matters: Choose Durable and Fuel-Resistant Caps
I prefer caps made from high-quality plastic or metal that can withstand exposure to petrol and weather elements. Some cheaper caps start to crack or degrade quickly when exposed to fuel or sunlight. Also, a fuel-resistant rubber gasket inside the cap is crucial to prevent leaks and evaporation.
3. Venting Options: Vent or Non-Vent Caps
One thing I learned is that some petrol caps are vented while others are not. Vent caps allow air to enter the tank to replace the fuel used, preventing vacuum buildup. Non-vented caps seal the tank completely. Depending on your mower’s engine and design, you might need one or the other. I always check the manufacturer’s recommendations before buying.
4. Ease of Use and Fit
A petrol cap should be easy to open and close but secure enough not to come loose during operation. I look for caps with ergonomic grips or tabs that make handling easier, especially if my hands are dirty or oily. Also, a proper fit is essential — too tight and you struggle to remove it; too loose and it may leak.
5. Replacement or Upgrade? Consider Additional Features
Sometimes I upgrade to caps with added features like built-in fuel filters or locking mechanisms for extra safety. While these aren’t always necessary, they can provide peace of mind, especially if you store your mower outside or have kids around.
6. Price and Brand Reliability
I don’t mind spending a bit more for a petrol cap from a reputable brand. Cheap generic caps might save money upfront but can cause problems down the line. Reading reviews and choosing a trusted supplier has saved me time and hassle.
7. Where to Buy
I usually buy my petrol caps from authorized dealers, hardware stores, or reliable online marketplaces. If unsure, contacting the mower manufacturer for genuine parts is a safe bet.
Final Thoughts
Replacing a lawn mower petrol cap might seem minor, but it plays a big role in your mower’s performance and safety. By knowing your mower’s requirements and choosing a quality, well-fitting cap, I’ve avoided leaks, evaporation, and engine issues. Hopefully, my experience helps you find the perfect petrol cap for your lawn mower!
Author Profile
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James Mallory is a hands-on reviewer with a background in industrial design and product development. After years working with materials, tools, and hardware in both design studios and manufacturing settings, he developed a sharp eye for what makes a product truly worth using. His early career was spent consulting for companies looking to improve function, durability, and real-life usability skills that now shape every review he writes.
Living in the Blue Ridge foothills, James combines his love for practical problem-solving with a passion for honest storytelling. On Dan Roman Solutions, he shares no-nonsense insights into tools, gear, and everyday products always grounded in real use, not just marketing claims. Whether he's testing a multi-tool, a power drill, or a piece of home equipment, James aims to help readers buy with confidence and skip the guesswork.
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