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Fuel tank

Fuel tank

Assy fuel tank 1.5 gallon

Lawn mower fuel tank. If the fuel tank is cracked or damaged, replace it.

Fuel tank

Fuel tank

Small engine fuel tank assembly with cap. If the small engine leaks fuel, then the tank is likely cracked and will need to be replaced.

Tank fuel rear

Fuel tank

Tank assy w/cap 3 gal epa

Tank.fuel.4gal

Fuel tank

Fuel tank with cap

Tank-fuel 1.36 ga

Fuel tank
A leaking or cracked fuel tank forces mowers into the garage and creates safety hazards on your property. Repair Clinic stocks genuine OEM lawn mower tank and container parts for all major brands—fuel tanks, oil reservoirs, air filter housings, and breather tubes that restore fuel system integrity. Quality replacement tanks ensure proper fuel flow to the carburetor and prevent fire risks from fuel leaks near hot engine parts.
Tank damage ranges from pinhole corrosion leaks to visible cracks from impacts or improper storage. Lawn mower tank and container parts from Repair Clinic help ensure exact fit and durability, backed by manufacturer engineering standards.
Locate your mower's model number before ordering—tank dimensions and filler neck styles vary significantly between brands and engine types.
Condensation (sweating) appears as droplets on the exterior after the mower sits unused overnight. True leaks show persistent fuel dripping or pooling under the mower, smell stronger, and often leave visible rust or corrosion rings around the leak source. Fuel leaks require immediate tank replacement for safety.
Genuine OEM fuel tanks are engineered to precise specifications matching your mower's fuel system pressure, vent design, and mounting geometry. Aftermarket tanks may leak at connection points, fail seals prematurely, or create vapor lock issues. OEM parts support proper fit and performance and reliability.
Small pinhole leaks in aluminum tanks may hold temporarily with epoxy, but fuel system repairs are best handled with replacement tanks. Epoxy can deteriorate from fuel chemical exposure, especially ethanol-blended gasoline, creating unpredictable failures and safety risks. A new OEM tank costs far less than an unsafe repair attempt.
Moisture trapped inside the tank during off-season storage, ethanol fuel absorbing water, and fuel sitting stale for months all accelerate internal rust. Using fuel stabilizer during storage and running your mower until the tank is nearly empty before winterization prevents most corrosion failures.


Ordering lawn mower tank container parts online is simple and gives you access to OEM options across every major brand. With same-day shipping on most in-stock items, you'll have your replacement part fast, minimizing downtime. Our model/part number lookup finds the exact OEM part for your unit, and every order is backed by our 365-day return policy and price-match guarantee. Browse our repair help section for troubleshooting tips, part testing guides, and step-by-step installation videos for your specific product.
Check the frame near the blade deck, engine housing, or area under the seat on your lawn mower for its model number label. If the mower has more than one label, use the model number, not the serial number, when searching Repair Clinic. Enter that number into the model search to narrow the complete lawn mower parts catalog to parts that fit your exact machine, including parts unrelated to the fuel tank. Check the characters carefully, since letters and numbers can look alike on worn labels. This gives you a fast, accurate match and helps prevent ordering parts for the wrong mower.

Repair Clinic makes Lawn Mower repair straightforward with a deep online library of videos, guides, and diagnostic articles. Step-by-step written instructions cover disassembly, testing, and reassembly, and the video library shows the same work in action so you can follow along. Use the model number lookup to confirm the exact OEM part, and wiring diagrams and part testing walkthroughs support the more technical steps.

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What's causing that black smoke to billow out of the engine? There are three likely reasons and they are all related to how a gas-powered lawn mower engine operates.