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Lawn Mower Carburetor Parts

Shop genuine OEM Lawn Mower Carburetor Parts to restore smooth fuel flow and reliable starting. Find the exact fit for your mower from our huge in-stock inventory, then order with 365-day returns, a price match guarantee, and same-day shipping.

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Carburetor
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Skill Level (1)
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Product is a manufacturer part
791-683974B Primer Bulb
$25.74

Small engine primer bulb with hose, large diameter. If the engine does not start the primer bulb may be defective and unable to draw additional fuel in to the carburetor to assist with starting the engine.

Skill Level (1)
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Product is a manufacturer part
530071835 Primer Bulb
$15.44

Purge bulb (or primer bulb) kit. The primer bulb draws fuel into the carburetor to make the engine easier to start. This replacement primer bulb features a smaller port. You will need to purchase a smaller fuel line.

Skill Level (2)
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Product is a manufacturer part
398188 Float Needle
$8.21

Carburetor needle & seat kit. Comes with installation instructions. The float needle allows fuel to enter the float bowl. If the float needle is stuck closed, the engine will not get fuel and thus will not start.

Skill Level (2)
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Product is a manufacturer part
640349 Carburetor
$113.29

Tecumseh replacement carburetor

Skill Level (2)
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Product is a manufacturer part
632760B Carburetor Repair Kit
$28.83

Tecumseh carburetor repair kit. If the carburetor is clogged, the engine won't get enough fuel. As a result, the engine may not start or may run rough.

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OEM Lawn Mower Carburetor Parts & Rebuild Kits

A clogged or worn carburetor is one of the most common reasons your mower won't start or runs rough. Genuine OEM carburetor parts from Repair Clinic keep fuel flowing smoothly and your engine running strong. We stock complete rebuild kits, individual jets, float needles, gaskets, and primer bulbs for virtually every lawn mower brand—because a proper carburetor repair beats guessing every time.

Whether you're dealing with a engine or a powerplant, the right carburetor parts make all the difference. Our lawn mower carburetor parts are tested and ready to restore reliable starting and consistent performance.

  • Carburetor rebuild kits — gaskets, seals, and jets in one convenient package
  • Float needles — precision fuel level control
  • Main jets and pilot jets — critical for fuel mixture
  • Primer bulbs — quick-prime for cold starts
  • Carburetor gaskets — prevent fuel leaks and air intrusion

Find your mower's model number on the engine shroud or frame decal, then search Repair Clinic to get the exact carburetor parts you need.

Lawn Mower Carburetor Parts: Answers to Your Questions

Why does my mower carburetor need rebuilding?

Carburetors collect varnish and debris when fuel sits unused over winter or the mower sits idle. Clogged jets, stuck floats, and dried gaskets prevent proper fuel atomization, causing hard starts, rough idle, and stalling. A rebuild kit replaces all the wear items that cause these problems without buying an expensive replacement carburetor.

What's the difference between a rebuild kit and individual parts?

Rebuild kits bundle all gaskets, seals, jets, and needles you'll need for a complete restoration—economical and convenient for DIY repairs. Individual parts let you replace only what's worn. For most homeowners, a kit is the smarter choice because you fix everything at once and avoid repeat repairs.

How do I know which carburetor parts fit my mower?

Your mower's model number is the key. Look for a metal tag on the deck or engine frame—it usually shows the manufacturer (, etc.) and the engine model. Enter that into Repair Clinic's parts finder, and you'll see exact carburetors and rebuild kits engineered for your mower.

Can I clean my carburetor instead of rebuilding it?

Cleaning helps temporarily, but worn gaskets and hardened seals won't seal fuel properly no matter how clean the carburetor is. A rebuild kit replaces those worn parts so your mower starts easily and idles smoothly for years. It's the real fix, not a band-aid.

Man examines the dipstick on a gas lawn mower for problems after his mower won't start
Man checking a lawn mower in grassy area

Order Lawn Mower Carburetor Replacement Parts Online

Ordering lawn mower carburetor 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.

Narrow Lawn Mower Parts to Your Exact Model

Skip the guesswork on fit by starting with your lawn mower's model number, usually printed on a decal or metal tag on the engine housing, frame near the blade deck, or, on riding mowers, under the seat. Check the mower itself rather than relying on the engine model alone, since the unit model identifies the complete machine and its associated parts. Type it into our model number lookup and the catalog narrows to parts made for your unit, including carburetors, belts, blades, filters, and other repair parts. You get parts that fit the first time.

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Repair Help for Lawn Mower

Whether you own a Lawn Mower or work on one professionally, Repair Clinic's online repair help covers what you need. Start with a symptom guide to narrow the likely cause, then use the model number lookup to confirm the correct replacement part. Written repair instructions and matching videos walk you through each step of the installation for a clean, first-time repair.

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