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Lawn Mower Muffler Parts

Choose genuine OEM Lawn Mower Muffler Parts to restore proper exhaust flow, reduce noise, and help keep your engine cool. Match the right part to your mower model from our large in-stock selection, then order with 365-day returns, a price match guarantee, and same-day shipping.

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Product is a manufacturer part
532188655 Muffler
$53.99

Riding lawn mower muffler. This part fits single cylinder Kohler and Briggs & Stratton engines. The mounting holes are not threaded on the replacement muffler. The screws that mount the muffler to the frame are self tapping.

Skill Level (2)
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Product is a manufacturer part
532149723 Muffler
$53.99

Riding lawn mower muffler. This part fits twin cylinder Kohler and Briggs & Stratton engines. The mounting holes are not threaded on the replacement muffler. The screws that mount the muffler to the frame are self tapping.

Skill Level (2)
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Product is a manufacturer part
394569S Muffler
$12.35

Lo-Tone,3-4 HP Vertical (1/2" NPT)

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Lawn Mower Muffler Replacement Parts

A damaged or corroded muffler doesn't just affect sound—it impacts engine performance and can cause overheating. Genuine OEM mufflers from, and other top brands maintain proper exhaust flow and cooling. At Repair Clinic, we stock direct replacement muffler assemblies, heat shields, and exhaust parts that match your mower's exact specifications.

Summer's peak mowing season means a failed muffler can sideline your equipment when you need it most. Don't settle for aftermarket guesses—get the right part, the first time.

  • Cracked or rusted muffler: Visible corrosion, holes, or separation from mounting
  • Excessive noise: Loud rattling or backfiring indicates loose or failing parts
  • Engine overheating: Blocked exhaust restricts airflow and cooling
  • Fuel smell: Damaged mufflers can't contain emissions properly
  • Spark arrestor clogs: Carbon buildup reduces engine efficiency

Browse our Lawn Mower muffler parts by model number to find exact OEM replacements. Need your mower's model? Check under the deck or on the engine block—we'll match it in seconds.

Lawn Mower Muffler Parts: Your Questions Answered

From to, muffler issues are one of the most overlooked reasons for poor mower performance. Here's what you need to know to keep your exhaust system healthy and your engine running cool.

What's the difference between a lawn mower muffler and a spark arrestor?

The muffler reduces noise and directs hot exhaust away from the operator. The spark arrestor (often built into the muffler) traps hot carbon particles to prevent grass fires. Both are critical safety parts. A clogged spark arrestor will cause hard starting and rough running, while a cracked muffler creates dangerous heat exposure and poor cooling.

Can I clean my muffler instead of replacing it?

Light carbon buildup inside the spark arrestor can sometimes be cleared, but cracks, rust, or corrosion mean replacement is your only option. Mufflers weld together at manufacturing—field repairs don't hold. OEM parts are inexpensive insurance against engine damage and safety hazards.

How do I find the right muffler for my, or mower?

Locate your model number on the engine shroud, fuel tank, or under the deck. It's typically a 6-12 character code. Once you have it, our parts finder quickly displays compatible muffler assemblies with exact fitment help ensure. We carry OEM parts for residential and commercial brands.

What happens if my muffler falls off mid-season?

Running without a muffler risks severe engine overheating, grass ignition near the hot pipe, and operator burns. Stop immediately and replace it before using the mower again. Most muffler failures are visible beforehand—look for rust rings, loose mounting bolts, or rattling during operation.

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

Shop Lawn Mower Muffler Replacement Parts Online

Replace worn-out Lawn Mower mufflers with genuine OEM parts from Repair Clinic. A functioning muffler is key for reducing noise and guiding exhaust gases safely away from the engine. Use our model number lookup to find the exact muffler part for your Lawn Mower, ensuring a proper fit. Enjoy the convenience of same-day shipping, No-Hassle 365-Day Returns, and our Price Match Guarantee, making it easy and affordable to maintain your equipment. For detailed repair guidance, visit the Lawn Mower Repair Help page. You can also browse our full inventory of Lawn Mower Muffler Parts for more options.

Filter Lawn Mower Parts by Your Model Number

Check the engine housing first for your lawn mower's model number, then look under the deck, near the rear wheel, or beneath the seat if it is not there. You will usually find the number on a stamped plate, printed label, or sticker. It identifies the entire mower, not just the muffler, so have the complete code ready before ordering. Enter it in the model number search to pull up the parts matched to your unit. The results narrow across the catalog to parts made for your specific mower, including the correct exhaust and muffler parts. That means fewer wrong orders and a faster repair.

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Repair Resources for Lawn Mower Owners

Repair Clinic backs Lawn Mower owners with a full online repair library. Troubleshooting videos, common-symptom articles, part testing walkthroughs, exploded-view diagrams, and step-by-step installation guides cover the diagnostic and repair work for the most common problems. Confirm your part with the model number lookup, follow the video, and complete the repair the first time.

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