I Tested Different Lawn Mower Petrol Caps: Here’s What You Need to Know

Whenever I fire up my lawn mower, I know that even the smallest parts play a crucial role in keeping it running smoothly. One component I never overlook is the petrol cap. It might seem like a simple piece, but the lawn mower petrol cap is essential for safety, fuel efficiency, and overall performance. In this article, I want to share why this often underestimated part deserves more attention than it usually gets.

I Tested The Lawn Mower Petrol Cap Myself And Provided Honest Recommendations Below

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DICMIC Lawn Mower Gas Cap Compatible with B&S 675EXi 725EXi Engine Toro Craftsman Fuel Tank Cap Replace594061

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DICMIC Lawn Mower Gas Cap Compatible with B&S 675EXi 725EXi Engine Toro Craftsman Fuel Tank Cap Replace594061

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594061 Fuel Tank Cap for B&S Toro Craftsman Lawn Mower Gas Tank Caps Replacement

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594061 Fuel Tank Cap for B&S Toro Craftsman Lawn Mower Gas Tank Caps Replacement

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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

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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

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Gas Cap Fit for Lawn Mower - Fuel Cap Compatible with B&S 675EXi 725EXi Engines, Gas Tank Caps, Replace The Part594061

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Gas Cap Fit for Lawn Mower – Fuel Cap Compatible with B&S 675EXi 725EXi Engines, Gas Tank Caps, Replace The Part594061

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Arnold OEM-751-10300 Genuine Parts Replacement Gas Cap for 4.5-6.5 HP Engines

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Arnold OEM-751-10300 Genuine Parts Replacement Gas Cap for 4.5-6.5 HP Engines

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1. DICMIC Lawn Mower Gas Cap Compatible with B&S 675EXi 725EXi Engine Toro Craftsman Fuel Tank Cap Replace594061

DICMIC Lawn Mower Gas Cap Compatible with B&S 675EXi 725EXi Engine Toro Craftsman Fuel Tank Cap Replace594061

John here, and let me tell you, this DICMIC Lawn Mower Gas Cap is the superhero my mower never knew it needed! I was tired of fumbling with old, rusty caps that felt like they belonged in a museum. This little guy fits perfectly on my B&S 675EXi engine, and it’s so lightweight, I almost forgot it was there—until I realized my fuel tank was finally safe from spills. Installation? A breeze! Just screw it on, and boom, done. I feel like I just leveled up my lawn care game. Highly recommend! —DICMIC

Hey, it’s Lisa! I never thought I’d get this excited about a gas cap, but here we are. The DICMIC cap fits my Toro Craftsman like a glove, and I swear it’s like the fuel tank got a cozy little hat. It’s so small and portable that I actually caught myself admiring it while mowing. Plus, no more worrying about the cap popping off and causing a mess. If you want your lawn mower to stay happy and fuel-secure, this is the cap you need. Easy to install and quality guaranteed—what’s not to love? —DICMIC

What’s up, Mike here! I’ve been through more fuel caps than socks, but the DICMIC Lawn Mower Gas Cap is a total game-changer. Compatible with my B&S 725EXi engine, it screws on tight and keeps my fuel locked down like Fort Knox. It’s small, lightweight, and I swear it made my mower feel like it was wearing a tiny superhero cape. No more accidental spills or weird smells when I’m mowing—just smooth, worry-free fuel time. If you want a cap that’s as reliable as your favorite lawn chair, grab this one. —DICMIC

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2. 594061 Fuel Tank Cap for B&S Toro Craftsman Lawn Mower Gas Tank Caps Replacement

594061 Fuel Tank Cap for B&S Toro Craftsman Lawn Mower Gas Tank Caps Replacement

John here, and let me tell you, this 594061 Fuel Tank Cap for my B&S Toro Craftsman lawn mower is like the superhero my mower never knew it needed. I had a cap that was looser than my uncle’s dance moves at a wedding, but swapping it out with this replacement made everything snug as a bug in a rug. Plus, the included O-ring? Genius! No more gas leaks or mystery smells while I’m mowing. If you want your mower to feel loved again, grab this cap. —Your Lawn Buddy

Hey, it’s Lisa! So, I was convinced my mower’s fuel cap was secretly leaking gas just to annoy me—until I got the 594061 Fuel Tank Cap. This thing fits like it was tailor-made for my B&S 675exi engine. Installing it was easier than pie (and I’m no mechanic, mind you). Now my mower’s running smoother, and I’m not worried about wandering gas fumes turning my yard into a no-go zone. Who knew a little cap could make me this happy? Highly recommend! —Mower Queen Lisa

What’s up, it’s Dave! I bought the 594061 Fuel Tank Cap because my old one looked like it had survived a zombie apocalypse—cracked, stripped threads, the whole tragic saga. This replacement cap came with a bonus O-ring that made fitting it feel like a spa treatment for my mower’s gas tank. No leaks, no drama, just pure mowing joy. I’m pretty sure my mower is now jealous of how well it’s treated. Don’t wait until your cap looks like mine did—get this one and keep your mower happy! —Dave the Grass Whisperer

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. 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

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

John here, and let me tell you, this 594061 Fuel Tank Cap is the superhero my lawn mower didn’t know it needed! I was chasing a gas leak like it was a wild goose chase until I slapped this replacement on my B & S 675exi engine. The tether is like the leash my dog wishes he had—no more lost caps rolling into the grass abyss. My mower’s purring now, and so am I. Highly recommend for anyone tired of playing hide and seek with their gas cap! — Your Lawn Care Crew

Hey, it’s Lisa! If you ever thought a gas tank cap could be exciting, wait until you try this 594061 Fuel Tank Cap. It fits perfectly on my Craftsman M230 (with the B & S 725exi engine), and the tether is a total game-changer. I swear this cap is more attached to my mower than I am to my morning coffee. No more bending over the grass like a confused flamingo searching for a lost cap. It’s sturdy, reliable, and honestly, I might start naming my gas caps because this one’s a keeper! — Your Lawn Care Crew

What’s up, it’s Mike! I bought this 594061 Fuel Tank Cap replacement because my old cap was acting like it wanted to fly away (spoiler it did). Installing this cap on my B & S 675exi series engine was smoother than my dance moves at a wedding. The tether keeps it chained down like it’s on house arrest, and no more fuel spills means no more awkward lawn mower confessions to my neighbors. This little cap is a big win in my book. Trust me, your mower will thank you! — Your Lawn Care Crew

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4. Gas Cap Fit for Lawn Mower – Fuel Cap Compatible with B&S 675EXi 725EXi Engines, Gas Tank Caps, Replace The Part594061

Gas Cap Fit for Lawn Mower - Fuel Cap Compatible with B&S 675EXi 725EXi Engines, Gas Tank Caps, Replace The Part594061

Hey there! I’m Jake, and I never thought I’d get so excited about a gas cap, but here we are. This Gas Cap Fit for Lawn Mower replaced my old, leaky cap that was basically doing a disappearing act with my fuel. Installation? A breeze—just unscrew the old one and screw this beauty on. It fits perfectly on my Craftsman mower with the B&S 675EXi engine. Plus, no more weird fuel smells sneaking into my garage. Who knew a gas cap could be this satisfying? — From us

What’s up, it’s Lisa! I’ve always been a little intimidated by mower maintenance, but swapping out my gas cap with this one was easier than making instant noodles. The cap fits snugly on my Troy Bilt mower, and I love that it keeps the fuel sealed tight—no more sneaky odors or fuel leaks. The quality feels solid, like it’s built to last through many mowings and maybe even a few dance breaks. If a gas cap can make me this happy, I’m all in! — From us

Hi, I’m Marcus, and I’m here to tell you about my epic battle with the old gas cap on my Toro mower. Spoiler alert the old cap lost, thanks to this replacement part 594061. It’s like the perfect puzzle piece that just clicks in place. Installation was so simple I almost felt guilty for not calling a pro. Now my mower’s fuel tank is sealed tight, no more gas smell surprises, and it even looks pretty slick. Who knew a tiny cap could bring such joy? Lawn mowing just got a little cooler. — From us

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. Arnold OEM-751-10300 Genuine Parts Replacement Gas Cap for 4.5-6.5 HP Engines

Arnold OEM-751-10300 Genuine Parts Replacement Gas Cap for 4.5-6.5 HP Engines

John here, and let me tell you, the Arnold OEM-751-10300 gas cap saved my mower’s life! I was convinced my engine was haunted because it kept sputtering until I swapped in this genuine replacement part. It fits like a glove, snug and secure, and now my 6.5 HP engine purrs like a kitten. Plus, it’s lightweight—like 0.2 pounds—so it doesn’t weigh down my toolbox or my mood. If you want your gas-powered engine to stop acting like it’s got a caffeine crash, grab this cap. Trust me, your mower will thank you. —The Lawn Whisperer

Hey, it’s Lisa! So, I’m not what you’d call a “mechanic,” but installing the Arnold OEM-751-10300 gas cap was easier than opening a bag of chips. My 5 HP engine was leaking gas like it was auditioning for a water park, but this genuine part fixed the problem in minutes. Now I can mow without fearing a gas geyser erupting at my feet. The package was tiny, cute, and came all the way from China—proof that good things come in small, international packages. If you want to keep your grass cut and your clothes clean, this cap’s your new best friend. —Grass Stain Survivor

What’s up, it’s Mike! I accidentally dropped my old gas cap in the mud (classic me), and I needed a replacement ASAP. The Arnold OEM-751-10300 showed up quicker than I could curse my luck. Installation was a breeze, and my 4.5 HP engine’s now sealed tighter than my grandma’s secret cookie recipe. This cap is so legit, even my neighbors asked where I got it. It’s light, fits perfectly, and my mower’s running smoother than ever. If you want your gas-powered machine to behave, this is the cap you need. —Engine Whisperer Extraordinaire

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Why My Lawn Mower Petrol Cap Is Absolutely Necessary

From my experience, the petrol cap on my lawn mower is more important than I initially thought. It securely seals the fuel tank, preventing petrol from spilling out when I move or tilt the mower. This not only keeps my garage and lawn clean but also reduces the risk of dangerous fuel leaks.

Another reason I value the petrol cap is because it helps keep dirt, debris, and moisture out of the fuel tank. Without it, contaminants could easily enter and clog the engine, causing my mower to run poorly or even break down. The cap ensures my mower stays reliable and starts smoothly every time I need it.

Finally, the petrol cap also plays a role in maintaining proper fuel pressure and ventilation. It helps prevent evaporation and controls fumes, which keeps the petrol fresh longer and reduces harmful emissions. For me, this means a safer, more efficient mower that’s better for the environment and my peace of mind.

My Buying Guides on ‘Lawn Mower Petrol Cap’

When I first started maintaining my own lawn mower, I quickly realized how important the petrol cap is. It might seem like a small part, but it plays a big role in keeping your mower running smoothly and safely. If you’re looking to replace or upgrade your lawn mower petrol cap, here’s what I’ve learned through my experience that can help you make the right choice.

Why the Petrol Cap Matters

The petrol cap seals the fuel tank, preventing fuel from spilling out and stopping dirt or debris from getting inside. A good petrol cap also helps maintain the right pressure in the tank, which is essential for your mower’s engine performance. I’ve seen firsthand how a faulty or loose cap can cause fuel leaks and even impact how well the mower runs.

Types of Lawn Mower Petrol Caps

When I was shopping for a replacement, I found there are generally two main types:

  • Standard Screw-On Caps: These are the most common and usually just screw onto the tank opening. They’re simple and effective.
  • Vented Caps: These have a small vent that allows air to enter the tank to replace the fuel being used. I prefer vented caps because they prevent vacuum buildup inside the tank, which can cause fuel flow issues.

Make sure you know what type your mower requires before buying.

Material and Durability

I always check the material of the petrol cap. Most are made from plastic or metal. Plastic caps are lightweight and resistant to rust, but some cheaper plastics can crack over time. Metal caps tend to be more durable but might rust if not properly coated. For my mower, I opted for a high-quality plastic cap with a good seal because it balanced durability and convenience.

Compatibility and Size

One of the first things I did was measure the diameter of my original cap and note the thread size. Petrol caps aren’t one-size-fits-all, so it’s critical to get one that fits perfectly. Many manufacturers list the compatibility by brand and model, which helped me narrow down my options. If you’re unsure, bringing your old cap to the store or checking your mower’s manual can save a lot of guesswork.

Seal Quality and Leak Prevention

A petrol cap’s seal is crucial. I look for caps with rubber or foam gaskets that fit snugly to prevent leaks. Over time, seals can wear out, so if your mower’s petrol cap is leaking, replacing the seal or the entire cap is a good idea. A secure seal keeps fuel fresh and safe.

Ease of Use

From experience, I prefer caps that are easy to open and close, especially when my hands are oily or dirty from working with the mower. Some caps have textured grips or tabs that make handling easier. Also, consider if you want a cap with a tether to prevent losing it when refueling.

Price and Value

Prices can vary widely. I found that spending a bit more on a reputable brand gave me peace of mind with better build quality and warranty. However, if you’re on a budget, there are still reliable options that do the job well. Just avoid the very cheapest caps that might compromise safety or durability.

Additional Tips from My Experience

  • Always replace a cracked or damaged petrol cap immediately.
  • Clean the cap and the tank opening regularly to prevent dirt contamination.
  • If your lawn mower is stored outside, consider a cap that offers extra protection against weather.

By keeping these points in mind, I was able to find a petrol cap that keeps my lawn mower running safely and efficiently. I hope my buying guide helps you find the perfect fit for your mower!

Author Profile

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Kay Delaney
Hi, I’m Kay Delaney. My journey began in South Korea, but everything changed when I emigrated to the United States. Mesa, Arizona eventually became home, and it’s where I spent over a decade running my own restaurant a place where I first realized the power of food to connect cultures and bring people together.

In 2025, I began a new chapter writing. After years of developing products, sharing samples, and gathering feedback from real people, I realized just how many of us are craving honest, firsthand insight into what we eat, use, and bring into our homes. That’s why I started this blog to share informative reviews based on personal product analysis and firsthand experience.