9 Best Replacement Mufflers for Riding Lawn Mowers (November 2026)

The best riding lawn mower replacement mufflers include the Oregon 35-006 Muffler Replaces Kohler/Briggs & Stratton for specified Kohler engines, the FancyTark 105-296 Mower Engine Muffler Exhaust for 105-296 Kohler applications, and the sevencow 751-0616B 951-0616B Twin Inlet Exhaust Muffler for listed MTD twin-inlet tractors.

On this page (6 sections)

1. How we chose the best riding lawn mower mufflers
2. Best replacement mufflers for riding lawn mowers
3. How do you match a muffler to a riding mower engine?
4. What should you measure before buying a riding mower muffler?
5. Can a different muffler quiet a riding lawn mower?
6. Which riding lawn mower muffler should you choose?

The best riding lawn mower mufflers match the engine’s exhaust ports, part number and available mounting space. Oregon 35-006 is the top pick for its specified Kohler engine range, while twin-inlet and brand-specific options cover other mower families.

Before you choose, find the mower model and engine model numbers, then read the number stamped on the old muffler if it is still legible. A replacement can share a brand name yet have a different inlet, thread or body shape.

For engine replacement research, compare our guides to best lawn mower engine options and best riding lawn mower engines. If you're repairing a Craftsman, see the best Craftsman lawn mower engines guide as well.

Our picks at a glance

1. 1
   Best for specified Kohler engines

   Oregon 35-006 Muffler Replaces Kohler/Briggs & Stratton

   9.5/10 our score

   See it on Amazon
2. 2
   Best for 105-296 Kohler applications

   FancyTark 105-296 Mower Engine Muffler Exhaust

   9.4/10 our score

   See it on Amazon
3. 3
   Best for listed MTD twin-inlet tractors

   sevencow 751-0616B 951-0616B Twin Inlet Exhaust Muffler

   9.2/10 our score

   See it on Amazon

4. 4

   fascinatte 105-296 Lawn Mower Engine Muffler Exhaust

   Best for Cub Cadet garden tractors
   Check it
5. 5

   FancyTark 149723 532149723 Twin Engine Muffler

   Best for listed Husqvarna twin-cylinder models
   Check it
6. 6

   John Deere Original Equipment Muffler #GY22156

   Best for matching John Deere equipment
   Check it
7. 7

   Stens New Stens Muffler 105-254 Compatible with/Replacement

   Best for listed Briggs & Stratton engines
   Check it
8. 8

   Replaces Kohler Muffler

   Best for Kohler 7, 10 and 12 HP engines
   Check it
9. 9

   FancyTark 532188655 188655 Muffler Compatible with Husqvarna

   Best for listed Husqvarna and Poulan models
   Check it

How we chose the best riding lawn mower mufflers

The most useful riding mower muffler picks name compatible engine models or replacement numbers and give enough connection details to compare with an existing part. We compared those fit details, stated dimensions, and included mounting pieces where available.

Our score weighs specs, features and buyer feedback against what you're shopping for.

Use the exact engine and mower model as your starting point. Then compare the exhaust ports, pipe thread or inlet diameter, bracket position, body length and outlet direction.

Best replacement mufflers for riding lawn mowers

These mufflers serve different engine families, so the best choice depends on your model and exhaust layout. Start with the listed fit and part numbers, then confirm the physical connection.

1

Oregon 35-006 Muffler Replaces Kohler/Briggs & Stratton: Best for specified Kohler engines

9.5/10Our score

• 1 in pipe thread
• 4 1/2 in OD x 3 1/4 in length
• Fits Kohler K240-K321 and K532-K582
• Replaces Kohler 275679, 275679S, 236649 and Tecumseh 32043B

This round replacement has a 1 in pipe thread and fits the listed Kohler engine families. Check the engine model and replacement number before ordering.

See it on Amazon

Pros

• Specific engine ranges are named
• Several replacement numbers are included

Cons

• Fit depends on engine and exhaust connection

The Oregon 35-006 is the clearest match for the Kohler engines named for it: K240-K321 and K532-K582. It replaces Kohler numbers 275679, 275679S and 236649, plus Tecumseh 32043B.

Its 1 in pipe thread and 4 1/2 in outside diameter by 3 1/4 in length give you two measurements to check against the old part. Confirm there is room for the round body and that the engine uses the same threaded exhaust connection.

Choose it when your engine falls within the stated range and the replacement number agrees. If you are diagnosing a stalled or stuck engine before replacing parts, see how to unseize a lawn mower.

2

FancyTark 105-296 Mower Engine Muffler Exhaust: Best for 105-296 Kohler applications

9.4/10Our score

• Fits Kohler K241, K301 and K321
• For Cub Cadet 393840-R91 applications
• 1 3/8 in inlet ID
• Clamp not included

The 105-296 replacement is listed for several Kohler engines and a Cub Cadet application. Its 1 3/8 in inlet and overall length make measuring the old muffler and clearance important.

See it on Amazon

Pros

• Engine and replacement numbers are specified
• Inlet size and body length are given

Cons

• Clamp is not included

FancyTark’s 105-296 muffler is listed for Kohler K241, K301 and K321 engines, plus Cub Cadet 393840-R91 and IH-393840-R91 applications. Its replacement numbers also include 237550-S and 237550.

The inlet has a 1 3/8 in inside diameter, and the body is 11 3/4 in long. The clamp is not included, so check whether your current clamp can be reused and whether the longer body clears the frame and nearby parts.

This is a fit-specific choice, not a general replacement for every riding mower. Compare both the engine model and the muffler number before choosing it.

3

sevencow 751-0616B 951-0616B Twin Inlet Exhaust Muffler: Best for listed MTD twin-inlet tractors

9.2/10Our score

• Twin inlet design
• Fits select Cub Cadet and MTD riding mowers
• Replaces 751-0616B and 951-0616B
• Includes deflector and installation screws

This twin-inlet muffler targets a range of MTD-produced riding mowers and tractors. Confirm the full mower model and old part number, and check deflector direction and surrounding clearance.

See it on Amazon

Pros

• Many compatible model families are named
• Deflector and screws are included

Cons

• Compatibility is model-specific

The sevencow 751-0616B is a twin-inlet option for select MTD-produced riding mowers, lawn tractors and garden tractors. Its compatibility list includes several Cub Cadet models and related brands, with replacement numbers such as 751-0616A, 751-0616B and 951-0616B.

The kit includes a muffler, deflector and installation screws. Its two entry ports must match the exhaust layout on your engine, and the deflector should point down and away from the chassis and nearby components.

Use the full mower model number to check the long compatibility list. Do not rely on the brand alone, since MTD sold equipment under several names.

4

fascinatte 105-296 Lawn Mower Engine Muffler Exhaust: Best for Cub Cadet garden tractors

9.0/10Our score

• Fits Kohler K241, K301 and K321
• For Cub Cadet garden tractors
• 1 3/8 in inlet ID
• Clamp not included

This 105-296 style option names the same Kohler engine family and Cub Cadet garden tractor use. Compare its listed inlet and body dimensions with the old muffler and available space.

See it on Amazon

Pros

• Engine family and replacement numbers are named
• Dimensions are provided

Cons

• Clamp is not included

The fascinatte 105-296 names Kohler K241, K301 and K321 engines and Cub Cadet garden tractors. It replaces Cub Cadet 393840-R91 and IH-393840-R91, along with Kohler 237550 and 237550-S.

Its stated inlet ID is 1 3/8 in, with an 11 3/4 in body length; a clamp is not included. Compare those measurements with the old muffler and make sure the body will clear the mower frame and heat-sensitive parts.

This option has similar application details to the FancyTark 105-296 above. Use the exact replacement number, engine model and mounting layout to distinguish which one fits your machine.

5

FancyTark 149723 532149723 Twin Engine Muffler: Best for listed Husqvarna twin-cylinder models

8.8/10Our score

• Replaces 149723, 137978 and 532149723
• Fits select Husqvarna, Poulan and Craftsman models
• Twin engine muffler

This twin muffler names several replacement numbers and a long list of compatible mower models. Match the complete model number before choosing it for a Craftsman, Poulan or Husqvarna machine.

See it on Amazon

Pros

• Several replacement numbers are named
• Select models across multiple brands are listed

Cons

• No dimensions are given here

FancyTark’s 149723 twin engine muffler lists replacement numbers 149723, 137978, 122440X, 532137978 and 532149723. Its fit list covers select Husqvarna models and names Poulan and Craftsman among compatible brands.

The model list includes several Husqvarna riding mower families, such as GTH and GT models. Check the complete model number against the fit information, then compare the old muffler’s ports and mounting points because dimensions are not specified here.

This can be a useful direction for a Craftsman or Husqvarna repair when the replacement number matches. For engine-side options on Craftsman equipment, see our Craftsman mower engine guide.

6

John Deere Original Equipment Muffler #GY22156: Best for matching John Deere equipment

8.5/10Our score

• John Deere part number GY22156
• Rectangular body design
• Vehicle-specific fit

This original John Deere muffler is a candidate when GY22156 matches your machine. Verify the mower model and body clearance because a familiar brand alone does not confirm fit.

See it on Amazon

Pros

• Original John Deere part
• Part number is clear

Cons

• Exact model fit should be confirmed

The John Deere GY22156 is an original equipment muffler with a rectangular body. It is a vehicle-specific fit, so confirm that GY22156 is the correct part number for your exact mower before ordering.

The listed dimensions are 12 x 11 x 6 in, which helps with a first clearance check. Still compare the exhaust tubes, mounting points and outlet direction with the old assembly, since body size alone does not guarantee compatibility.

Choose this when you need the John Deere part number and model match. A different John Deere mower may use a different muffler shape or connection.

7

Stens New Stens Muffler 105-254 Compatible with/Replacement: Best for listed Briggs & Stratton engines

8.3/10Our score

• 1 in pipe thread
• 4 3/4 in pipe length
• Fits select Briggs & Stratton engines
• Replaces several Briggs & Stratton numbers

The 105-254 has a 1 in pipe thread and a longer pipe than some compact mufflers. Check engine compatibility and space around the connection before buying.

See it on Amazon

Pros

• Pipe and body dimensions are stated
• Several compatible engine models are named

Cons

• Fit is limited to specified engines

The Stens 105-254 is specified for Briggs & Stratton engines 251412, 251416, 254422, 254427 and 283702. It replaces several Briggs & Stratton numbers, including 391569 and 391569S.

It has a 1 in pipe thread, a 4 3/4 in pipe length, and a body measuring 7 7/8 in long with a 4 1/8 in outside diameter. Compare the pipe length and body clearance with your existing setup before choosing it.

This is a defined engine fit rather than a brand-wide option. Verify the engine model and part number, especially if the mower has had an engine swap.

8

Replaces Kohler Muffler: Best for Kohler 7, 10 and 12 HP engines

8.0/10Our score

• Fits Kohler 7, 10 and 12 HP engines
• For Cub Cadet garden tractors
• Replaces 237550 and 237550-S

This Kohler replacement is named for several engine sizes and Cub Cadet garden tractors. Confirm the part number and measure the mounting area because dimensions are not specified.

See it on Amazon

Pros

• Engine sizes and replacement numbers are named
• Cub Cadet application is noted

Cons

• Dimensions are not specified

This Kohler replacement is identified by part number 237550 and model 393840-R91. It is described for Kohler 7, 10 and 12 HP engines and Cub Cadet garden tractors.

The exact muffler dimensions are not specified, so compare the old part number and inspect the inlet, bracket and space around the exhaust area before buying. Those physical details matter even when the engine size appears to match.

Choose it when 237550 or 393840-R91 matches your mower’s current part. If you are planning a larger engine repair, compare the best replacement lawn mower engines guide too.

9

FancyTark 532188655 188655 Muffler Compatible with Husqvarna: Best for listed Husqvarna and Poulan models

7.8/10Our score

• Replaces 532188655, 580532301 and 188655
• Fits select Husqvarna, Poulan and Jonsered models
• Craftsman and Ryobi compatibility is also named

This replacement covers a broad set of named mower models across several brands. The long compatibility list makes an exact model and part-number check especially useful.

See it on Amazon

Pros

• Many model families are named
• Several replacement numbers are included

Cons

• Dimensions are not specified

FancyTark’s 532188655 replacement also uses numbers 580532301 and 188655. Its compatibility list names select Husqvarna, Poulan and Jonsered models, with Craftsman and Ryobi compatibility also noted.

The long model list can help narrow a match, but no body dimensions are specified here. Verify your mower’s complete model number and compare the connection and mounting layout with the old muffler.

Use this option when one of its replacement numbers matches your existing part. A broad brand list does not confirm that every mower from those brands uses the same exhaust assembly.

How do you match a muffler to a riding mower engine?

Match the replacement number and engine model first, then check the exhaust connection and physical clearance. The part should line up with the engine port and mounting points without pressing against the chassis or nearby components.

Write down the mower model, engine model and old muffler number before shopping. If the old part has no readable number, use the engine model to find its parts diagram and compare the muffler shape and connection.

For threaded connections, compare thread size and pipe length. For inlet-style mufflers, compare the number of ports, their diameter and spacing, plus the bracket and outlet direction.

What should you measure before buying a riding mower muffler?

Measure the connection, body and clearance around the installed muffler. These checks help catch a part that has the right general name but does not fit the available space.

Use these measurements as a checklist:

• Exhaust connection: thread size or inlet inside diameter.
• Port layout: single or twin inlet, including port spacing.
• Body size: outside diameter, length and shape.
• Mounting points: bracket position and bolt locations.
• Clearance: distance to the frame, wiring, shields and other nearby parts.
• Outlet direction: where exhaust will travel after installation.

Compare the measurements with the old muffler and the mower’s parts information. Do not force a mismatch into place or change exhaust routing without following the engine and mower instructions.

Can a different muffler quiet a riding lawn mower?

A correctly matched muffler provides the intended exhaust path, but a replacement does not promise a specific noise level. A loose shield, exhaust leak or engine problem can also change how the mower sounds.

Inspect the full exhaust assembly when you hear a new rattle or sharp exhaust note. If you want to explore other noise reduction steps, read how to quiet a lawn mower muffler.

Avoid improvised changes that block exhaust flow or route hot gases toward the mower. For a DIY overview, see how to make a lawn mower muffler, then follow the mower and engine maker’s safety instructions.

Which riding lawn mower muffler should you choose?

Choose Oregon 35-006 if your Kohler engine is in its stated range and the 1 in threaded connection matches. Pick a twin-inlet option for a mower whose exact model and two-port layout appear in the compatibility details.

For a Craftsman, Husqvarna, Poulan or John Deere, start with the full mower model and replacement number, then verify port style and mounting space. If those details do not line up, keep checking before you order.

Our top 3 picks at a glance

1. 1
   Best for specified Kohler engines

   Oregon 35-006 Muffler Replaces Kohler/Briggs & Stratton

   9.5/10 our score

   See it on Amazon
2. 2
   Best for 105-296 Kohler applications

   FancyTark 105-296 Mower Engine Muffler Exhaust

   9.4/10 our score

   See it on Amazon
3. 3
   Best for listed MTD twin-inlet tractors

   sevencow 751-0616B 951-0616B Twin Inlet Exhaust Muffler

   9.2/10 our score

   See it on Amazon

Frequently asked questions

How do I choose the right riding lawn mower muffler?

Match the engine model, muffler part number, exhaust-port style and mounting space. Then compare pipe thread or inlet size, body length, outlet direction and nearby clearance with the old part.

A muffler that shares a brand name may still use a different connection or mounting layout.

Can I use a universal muffler on a riding mower?

Only if its connection, mounting method, exhaust direction and clearances suit your engine and mower. A universal-fit label does not confirm that the part will line up with your exhaust port or stay clear of the chassis.

Use the engine and mower model numbers to verify fit before ordering.

What does a twin-inlet muffler mean?

A twin-inlet muffler has two exhaust entry ports, which are intended to connect to a matching engine exhaust layout. Check that your old muffler also has two inlets and compare the spacing and mounting points.

The number of ports is only one part of fit.

Should I replace a muffler clamp or deflector?

Check what your replacement includes and compare it with the old assembly. The FancyTark 105-296 options do not include a clamp, while the sevencow twin-inlet kit includes a deflector and installation screws.

Follow the mower and engine instructions for installation and safe exhaust routing.

Can a new muffler make a riding mower quieter?

A correctly matched muffler restores the intended exhaust path, but the muffler alone does not guarantee a particular noise level. Loose shields, leaks, engine condition and other worn parts can also affect sound.

For broader repair steps, see our guide to How To Quiet Lawn Mower Muffler?.