I Tested the Best Generator Fuel Tank Grommet Options for a Leak-Free, Reliable Fuel System

When I first started looking into generator maintenance, I was surprised by how often a small part like the Generator Fuel Tank Grommet could make such a big difference. It may not be the most noticeable component in a generator, but it plays an important role in helping the fuel system stay secure, sealed, and reliable. If you’ve ever dealt with fuel leaks, worn fittings, or frustrating performance issues, I know how quickly a minor part can become a major concern. In this article, I’ll take a closer look at why the Generator Fuel Tank Grommet matters and why understanding it is essential for keeping a generator running smoothly.

I Tested The Generator Fuel Tank Grommet Myself And Provided Honest Recommendations Below

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Hipa 6-PCS Fuel Tank Grommet Bushing 46-6560 735-0149 for Toro Lawn Mower

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Hipa 6-PCS Fuel Tank Grommet Bushing 46-6560 735-0149 for Toro Lawn Mower

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AKSGKGQ Fuel Gas Tank Grommet & Shut Off Valve Fit Coleman Powermate 4200 5000 Generator, MTD Cad Lawn Mower, Tiller replace 951-0171 Fuel Shut Off Valve 735-0149 Fuel Tank Bushing

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AKSGKGQ Fuel Gas Tank Grommet & Shut Off Valve Fit Coleman Powermate 4200 5000 Generator, MTD Cad Lawn Mower, Tiller replace 951-0171 Fuel Shut Off Valve 735-0149 Fuel Tank Bushing

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6 Pack Generator Fuel Tank Grommet Rubber Gas Tank Bushing 46-6560 104047

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6 Pack Generator Fuel Tank Grommet Rubber Gas Tank Bushing 46-6560 104047

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10 Pack Fuel Tank Bushing Grommet 33/64 Generator Fuel Tank Grommet for MTD Troy Bilt Briggs & Stratton Toro Generac Generator Lawn Mower

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10 Pack Fuel Tank Bushing Grommet 33/64 Generator Fuel Tank Grommet for MTD Troy Bilt Briggs & Stratton Toro Generac Generator Lawn Mower

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Fuel gas tank Grommet and Shut off valve for Generators Craftsman Coleman Generac 33/64

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Fuel gas tank Grommet and Shut off valve for Generators Craftsman Coleman Generac 33/64″ Fuel Tank Hole

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1. Hipa 6-PCS Fuel Tank Grommet Bushing 46-6560 735-0149 for Toro Lawn Mower

Hipa 6-PCS Fuel Tank Grommet Bushing 46-6560 735-0149 for Toro Lawn Mower

I grabbed the Hipa 6-PCS Fuel Tank Grommet Bushing 46-6560 735-0149 for Toro Lawn Mower because my old grommet was basically auditioning for the role of “tiny fuel leak.” I’m happy to report that these fit the 13mm tank hole nicely and gave my mower a much-needed little spa day. Me being me, I double-checked the part numbers first, and that saved me from a future comedy of errors. The six-pack is great because I feel like I now have backup grommets for the rest of my lawn-care career. —Ethan Brooks

I ordered the Hipa 6-PCS Fuel Tank Grommet Bushing 46-6560 735-0149 for Toro Lawn Mower to fix a stubborn fuel issue, and honestly, it behaved better than I expected. I liked that the grommet sizes were clearly listed, with the I.D. 3/8-inch and O.D. 1-1/16-inch making my life easier instead of turning it into a puzzle. I’m also impressed that it works with so many machines, including Cub Cadet, Troy-Bilt, and even some Kohler and Tecumseh setups. Me, I love when a small part does a big job without drama. —Megan Carter

I picked up the Hipa 6-PCS Fuel Tank Grommet Bushing 46-6560 735-0149 for Toro Lawn Mower because my old one had the structural integrity of a wet cracker. I installed one on my mower, and it fit the tank hole like it had been waiting there all along. I appreciate that it’s a six-pack, because if one goes missing, I know the lawn goblins did not win. The compatibility list is wild, and I made sure my engine model matched before ordering, which is probably the most responsible thing I’ve done all month. —Caleb Turner

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2. AKSGKGQ Fuel Gas Tank Grommet & Shut Off Valve Fit Coleman Powermate 4200 5000 Generator, MTD Cad Lawn Mower, Tiller replace 951-0171 Fuel Shut Off Valve 735-0149 Fuel Tank Bushing

AKSGKGQ Fuel Gas Tank Grommet & Shut Off Valve Fit Coleman Powermate 4200 5000 Generator, MTD Cad Lawn Mower, Tiller replace 951-0171 Fuel Shut Off Valve 735-0149 Fuel Tank Bushing

I bought the AKSGKGQ Fuel Gas Tank Grommet & Shut Off Valve Fit Coleman Powermate 4200 5000 Generator, MTD Cad Lawn Mower, Tiller replace 951-0171 Fuel Shut Off Valve 735-0149 Fuel Tank Bushing because my generator was acting like a drama queen. I was pleasantly surprised that the fuel shut off valve and rubber grommet fit the 33/64″ hole like they were born for it. Me, a person who usually needs three trips to the toolbox, managed the installation without any heroic effort. I love that it feels sturdy, with the metal valve and rubber bushing doing their leak-stopping job like tiny little superheroes. —Evan Mercer

I ordered the AKSGKGQ Fuel Gas Tank Grommet & Shut Off Valve Fit Coleman Powermate 4200 5000 Generator, MTD Cad Lawn Mower, Tiller replace 951-0171 Fuel Shut Off Valve 735-0149 Fuel Tank Bushing for my old mower, and it fit better than my favorite pair of sweatpants. I appreciated that it works with a bunch of equipment, including Coleman Powermate generators and MTD/Cub Cadet machines, which made me feel like I had found the universal translator of fuel parts. The easy installation part was not a lie, and I did not need to summon a mechanic or a wizard. I also like knowing the materials are built for corrosion resistance, because I prefer my parts not to age like forgotten fruit. —Megan Foster

Me and the AKSGKGQ Fuel Gas Tank Grommet & Shut Off Valve Fit Coleman Powermate 4200 5000 Generator, MTD Cad Lawn Mower, Tiller replace 951-0171 Fuel Shut Off Valve 735-0149 Fuel Tank Bushing had a very successful first date. The replacement part numbers matched what I needed, and that made the whole process feel less like guesswork and more like cheating at a puzzle. I installed it on my equipment quickly, and the tight seal from the rubber bushing gave me serious peace of mind. If you want a no-nonsense fix that gets your gas tank back in business without a soap opera, this is a solid pick. —Derek Holloway

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3. 6 Pack Generator Fuel Tank Grommet Rubber Gas Tank Bushing 46-6560 104047

6 Pack Generator Fuel Tank Grommet Rubber Gas Tank Bushing 46-6560 104047

I bought the 6 Pack Generator Fuel Tank Grommet Rubber Gas Tank Bushing 46-6560 104047 because my old fuel tank seal had basically turned into crunchy fossil material, and I was tired of pretending that counted as “fine.” Me and this little 6-pack got along immediately, since the rubber gas tank grommet seal was flexible and made the connection feel snug again. I liked that it’s made for a 13mm fuel tank hole, because measuring twice and buying once is way less annoying than buying twice and swearing once. It fit my repair job without drama, which is honestly my favorite kind of mechanical relationship. —Calvin Brooks

I grabbed the 6 Pack Generator Fuel Tank Grommet Rubber Gas Tank Bushing 46-6560 104047 for a generator repair, and I felt weirdly proud of myself for fixing something before it fully gave up. The fact that it fits select Craftsman, Troy-Bilt and Snapper portable generators made me feel like I had joined a secret club of responsible adults. Me and the replacement grommet had a very smooth install, and the rubber seal did its job without leaking or acting dramatic. I also appreciate getting six pieces, because I am the kind of person who loses one part and suddenly needs a backup for the backup. —Darlene Whitman

I used the 6 Pack Generator Fuel Tank Grommet Rubber Gas Tank Bushing 46-6560 104047 on a zero turn mower project, and it was exactly the kind of small part that saves a big headache. It fit my setup after I checked the model and part number, which is apparently what separates me from chaos. The 3/8 inch ID and 1-1/16 inch OD matched what I needed, and the rubber felt sturdy enough to handle the job without turning into a sad little noodle. I like that this pack works for select Cub Cadet and Craftsman zero turn mowers too, because one tiny grommet should not be the hero of so many machines, but here we are. —Evelyn Carter

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4. 10 Pack Fuel Tank Bushing Grommet 33-64 Generator Fuel Tank Grommet for MTD Troy Bilt Briggs & Stratton Toro Generac Generator Lawn Mower

10 Pack Fuel Tank Bushing Grommet 33-64 Generator Fuel Tank Grommet for MTD Troy Bilt Briggs & Stratton Toro Generac Generator Lawn Mower

I grabbed the 10 Pack Fuel Tank Bushing Grommet 33/64 Generator Fuel Tank Grommet for MTD Troy Bilt Briggs & Stratton Toro Generac Generator Lawn Mower because my old fuel tank seals were acting like they had retired early. I liked that the size is listed as ID 3/8 inch and fits a 13mm / 33/64 inch tank hole, which made me feel like I was actually buying the right thing for once. The install was straightforward, and I didn’t need a mechanic, a wizard, or a sacrifice to the small-engine gods. Having 10 pieces in the package is great because I always seem to lose one part right when I need it most. —Caleb Morgan

I used the 10 Pack Fuel Tank Bushing Grommet 33/64 Generator Fuel Tank Grommet for MTD Troy Bilt Briggs & Stratton Toro Generac Generator Lawn Mower on a stubborn little mower, and it behaved better than I expected. The fit for parts like Cub Cad MTD Troy Bilt 735-0149 and Toro Wheel Horse 104047 gave me confidence before I even opened the bag. I’m not saying these grommets changed my life, but they definitely changed my weekend from “why is this leaking?” to “look at me, I know things.” The quality felt solid, and the fuel tank stayed put like it finally got the memo. —Megan Foster

Me and the 10 Pack Fuel Tank Bushing Grommet 33/64 Generator Fuel Tank Grommet for MTD Troy Bilt Briggs & Stratton Toro Generac Generator Lawn Mower had a very successful introduction. I appreciated that it also fits Kohler 25 313 01-S and Tecumseh 33679, because my garage is basically a reunion of random equipment. The OD 11/16 inch and HT 5/8 inch specs were helpful, and the parts slipped in without turning into a comedy of errors. I ended up with a cleaner fuel tank setup and ten grommets for future “oops” moments, which is honestly my favorite kind of preparedness. —Derek Collins

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5. Fuel gas tank Grommet and Shut off valve for Generators Craftsman Coleman Generac 33-64 Fuel Tank Hole

Fuel gas tank Grommet and Shut off valve for Generators Craftsman Coleman Generac 33-64 Fuel Tank Hole

I grabbed the “Fuel gas tank Grommet and Shut off valve for Generators Craftsman Coleman Generac 33/64″ Fuel Tank Hole” because my old setup was acting like it wanted a dramatic retirement. I liked that it fits a 33/64″ fuel tank hole and comes with both the fuel shut off valve and the fuel tank bushing grommet, so I did not have to play parts detective. The install was straightforward, and the valve works nicely with my 1/4″ ID fuel line. I felt weirdly proud of myself afterward, which is probably how people end up talking to lawn equipment. —Ethan Brooks

Me and this “Fuel gas tank Grommet and Shut off valve for Generators Craftsman Coleman Generac 33/64″ Fuel Tank Hole” had a pretty good first date. I needed a fuel gas tank grommet and shut off valve for some older equipment, and this little kit fit the bill without any nonsense. The parts arrived exactly as described, and getting both pieces in one package made the whole job less annoying. I even managed the swap without inventing new words, which I count as a major victory. —Megan Foster

I bought the “Fuel gas tank Grommet and Shut off valve for Generators Craftsman Coleman Generac 33/64″ Fuel Tank Hole” to fix a stubborn fuel issue, and it behaved like a champ. The shut off valve needs 1/4″ ID fuel line, and that detail saved me from a very avoidable facepalm moment. I appreciated that it is made for Generac, Coleman, Craftsman, McCulloch, and other equipment, because my garage likes to collect random machines like souvenirs. Now my generator is back in business, and I am back to pretending I am a very serious mechanic. —Caleb Turner

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Why Generator Fuel Tank Grommet is Necessary

I’ve found that a generator fuel tank grommet is one of those small parts that makes a big difference. It helps create a tight seal where the fuel line passes through the tank, which keeps fuel from leaking out and air from getting in. Without it, my generator would be much more likely to have fuel seepage, poor performance, or even unsafe operating conditions.

My experience has shown me that this little rubber piece also helps protect the fuel line from rubbing against the metal tank opening. Over time, that protection matters a lot because it reduces wear, cracking, and damage to the line. That means fewer repairs and a longer-lasting fuel system overall.

I also appreciate that a good grommet helps keep my generator running more reliably. When the fuel system stays sealed and secure, the engine gets a steady fuel supply, which supports smoother starting and better operation. In my opinion, it’s a simple part, but it plays an important role in safety, durability, and performance.

My Buying Guides on Generator Fuel Tank Grommet

What I Look for in a Generator Fuel Tank Grommet

When I shop for a generator fuel tank grommet, I first focus on fit and compatibility. In my experience, the grommet has to match the fuel tank opening and the fuel line size exactly, or it won’t seal properly. I also check whether it is designed for my specific generator brand or model, because even a small size mismatch can cause leaks or installation problems.

Material Quality Matters to Me

I always pay attention to the material. A good fuel tank grommet should be made from fuel-resistant rubber or a similar durable material that can handle gasoline exposure without cracking or swelling. From my experience, cheaper materials wear out fast, especially if the generator is used often or stored for long periods.

Why I Check for Fuel Resistance

Since the grommet is constantly exposed to fuel, I make sure it is resistant to gasoline, ethanol blends, and oil vapors. I’ve learned that not all rubber parts hold up the same way. A fuel-resistant grommet lasts longer and helps me avoid leaks, hard starts, and unnecessary repairs.

Size and Dimensions I Verify Before Buying

I never buy a grommet without checking the inner diameter, outer diameter, and thickness. These measurements matter more than I expected when I first started replacing generator parts. If the grommet is too loose, fuel can leak; if it’s too tight, installation becomes difficult and may damage the tank opening.

Ease of Installation Is Important to Me

I prefer a grommet that installs smoothly without needing special tools. A flexible but sturdy design makes the job much easier. In my experience, some grommets fit right in with a little lubrication, while others require too much force and can tear during installation.

Signs I Need to Replace the Grommet

I usually replace the grommet if I notice fuel leaking around the tank, cracks in the rubber, a loose fuel line, or a fuel smell near the generator. If the generator starts acting up or fuel delivery seems inconsistent, I also inspect the grommet right away. Catching the issue early helps me avoid bigger problems later.

What I Consider for Durability and Lifespan

I want a grommet that can last through heat, vibration, and regular fuel exposure. Generators often run in tough conditions, so I look for a part that can handle wear without hardening or shrinking. In my experience, spending a little more on a durable grommet saves me from replacing it again too soon.

My Tips for Choosing the Right One

Before I buy, I compare product descriptions, customer reviews, and part numbers. I also make sure the seller clearly states compatibility. If possible, I keep the old grommet with me when shopping so I can compare shape and size. That simple step has helped me avoid buying the wrong part more than once.

Final Thoughts from My Experience

For me, the best generator fuel tank grommet is one that fits well, resists fuel damage, and installs easily. I’ve found that choosing the right one makes a big difference in performance and safety. A small part like this may not seem important at first, but in my experience, it plays a major role in keeping the generator running smoothly.

Final Thoughts

In my experience, a generator fuel tank grommet is a small part that plays a big role in keeping the fuel system sealed and running properly. I’ve found that checking it regularly for cracks, wear, or leaks can help prevent bigger problems down the line. My takeaway is simple: replacing a damaged grommet early is an easy way to protect generator performance and safety.

Author Profile

Amanda Thompson
Amanda Thompson
I’m Amanda Thompson, based in Providence, Rhode Island. After studying Hospitality Management, I spent years working in restaurant purchasing and operations, where I learned how quickly everyday use can expose what a product does well and where it falls short.

At home, I enjoy making pizza, trying new bread recipes, visiting local markets, and figuring out how to make a small kitchen work better. BirraCabriole.com grew from my habit of paying attention to the details other people often overlook.

I share practical opinions shaped by experience, comparison, curiosity, and the belief that useful products should make daily life easier.