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Mufflers

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Top Seller

Donaldson M090544 Exhaust Muffler - 51.00 in. Overall length, Round

Exhaust Muffler

DONALDSON Exhaust Muffler - 51.00 in. Overall length, Round 00742330005248
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Donaldson M085171 Exhaust Muffler - Steel, 40.00 in. Overall length, Round Style

Exhaust Muffler

DONALDSON Exhaust Muffler - Steel, 40.00 in. Overall length, Round Style 00742330004944
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Donaldson M100465 Exhaust Muffler - Steel, 51.00 in. Overall length, Round Style

Exhaust Muffler

DONALDSON Exhaust Muffler - Steel, 51.00 in. Overall length, Round Style 00742330005507
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Dynaflex 87BC-6050CP Exhaust Stack Muffler - Chrome, 6 in. to 5 in., 51 in. Length, 8 in. OAD

Exhaust Muffler

DYNAFLEX Exhaust Stack Muffler - Chrome, 6 in. to 5 in., 51 in. Length, 8 in. OAD 852809876050
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Donaldson M100580 Exhaust Muffler - 51" Overall Length, Round, Style 1

Exhaust Muffler

DONALDSON Exhaust Muffler - 51" Overall Length, Round, Style 1 00742330005545
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Donaldson M100463 Exhaust Muffler - 51.00 in. Overall length

Exhaust Muffler

DONALDSON Exhaust Muffler - 51.00 in. Overall length 00742330005484
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Helmar Forklift Parts 9115604-00 Exhaust Muffler - for Yale Applications

Exhaust Muffler

HELMAR FORKLIFT PARTS Exhaust Muffler - for Yale Applications
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Walker Exhaust 21969 Heavy Duty Direct Fit Exhaust Muffler 4" Inlet (Inside) 4" Outlet (Inside)

Exhaust Muffler

WALKER EXHAUST Heavy Duty Direct Fit Exhaust Muffler 4" Inlet (Inside) 4" Outlet (Inside) 00086387219693
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PAI 1899 Exhaust Muffler

PAI

Exhaust Muffler

PAI Exhaust Muffler 00193807184810
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Dynaflex 87BC-500CP 5" Chrome Exhaust Muffler Stack with 5" Inlet and Outlet Diameter

Exhaust Muffler

DYNAFLEX 5" Chrome Exhaust Muffler Stack with 5" Inlet and Outlet Diameter
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Donaldson M090595 Exhaust Muffler - 26.50 in. Overall length

Exhaust Muffler

DONALDSON Exhaust Muffler - 26.50 in. Overall length 00742330005309
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Donaldson M101169 Exhaust Muffler - 29.22 in. Overall length

Exhaust Muffler

DONALDSON Exhaust Muffler - 29.22 in. Overall length 742330114018
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Donaldson M122300 MUFFLER, OVAL,

Exhaust Muffler

DONALDSON MUFFLER, OVAL, 00742330006054
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Automann 562.U6510 Exhaust Muffler, 5" Inlet/Outlet 10" Diameter x 44" Shell for Kenworth/Mack

Exhaust Muffler

AUTOMANN Exhaust Muffler, 5" Inlet/Outlet 10" Diameter x 44" Shell for Kenworth/Mack 889626196140
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Donaldson M065044 Exhaust Muffler - 23.50 in. Overall length

Exhaust Muffler

DONALDSON Exhaust Muffler - 23.50 in. Overall length 00742330004654
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Replacement for John Deere AT332273 JOHN DEERE-REPLACEMENT, Replacement Muffler

Exhaust Muffler

REPLACEMENT FOR JOHN DEERE JOHN DEERE-REPLACEMENT, Replacement Muffler
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Donaldson M090072 Exhaust Resonator - 16.50 in. Overall length

Exhaust Resonator

DONALDSON Exhaust Resonator - 16.50 in. Overall length 00742330005057
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Replacement for John Deere AT53007 Engine Exhaust Muffler - Fits Skidders 440C, 440D, 448D, 540B, 540D, 548D

Exhaust Muffler

REPLACEMENT FOR JOHN DEERE Engine Exhaust Muffler - Fits Skidders 440C, 440D, 448D, 540B, 540D, 548D
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Donaldson M100464 Exhaust Muffler - 51.00 in. Overall length, Wrapped

Exhaust Muffler

DONALDSON Exhaust Muffler - 51.00 in. Overall length, Wrapped 00742330005491
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Donaldson M111028 Exhaust Muffler - 44.00 in. Overall length

Exhaust Muffler

DONALDSON Exhaust Muffler - 44.00 in. Overall length 00742330116081
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Walker Exhaust 22551 Heavy Duty Direct Fit Exhaust Muffler 3.5" Inlet (Inside) 4" Outlet (Inside)

Exhaust Muffler

WALKER EXHAUST Heavy Duty Direct Fit Exhaust Muffler 3.5" Inlet (Inside) 4" Outlet (Inside) 00086387225519
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Walker Exhaust 22643 Heavy Duty Direct Fit Exhaust Muffler 4" Inlet (Inside) 4" Outlet (Inside)

Exhaust Muffler

WALKER EXHAUST Heavy Duty Direct Fit Exhaust Muffler 4" Inlet (Inside) 4" Outlet (Inside) 00086387226431
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Walker Exhaust 22771 Heavy Duty Direct Fit Exhaust Muffler 5" Inlet (Inside) 5" Outlet (Inside)

Exhaust Muffler

WALKER EXHAUST Heavy Duty Direct Fit Exhaust Muffler 5" Inlet (Inside) 5" Outlet (Inside) 00086387227711
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International 3571968C3 Exhaust Muffler - Stainless Steel, Heavy Duty, Insulated, Navistar Compatible

Exhaust Muffler

INTERNATIONAL Exhaust Muffler - Stainless Steel, Heavy Duty, Insulated, Navistar Compatible
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United Pacific 10333 5" x 51" Exhaust Muffler

Exhaust Muffler

UNITED PACIFIC 5" x 51" Exhaust Muffler 710270103331
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Donaldson M085421 Exhaust Muffler - 40.00 in. Overall length

Exhaust Muffler

DONALDSON Exhaust Muffler - 40.00 in. Overall length 00742330132166
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Donaldson M090535 Exhaust Muffler - 51.00 in. Overall length

Exhaust Muffler

DONALDSON Exhaust Muffler - 51.00 in. Overall length 00742330005224
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Donaldson M060158 Exhaust Muffler - 21.31 in. Overall length

Exhaust Muffler

DONALDSON Exhaust Muffler - 21.31 in. Overall length 00742330004555
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Helmar Forklift Parts 17510-U217071 Aftermarket Replacement Exhaust Muffler for Toyota Forklifts

Exhaust Muffler

HELMAR FORKLIFT PARTS Aftermarket Replacement Exhaust Muffler for Toyota Forklifts
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Helmar Forklift Parts 20100-14H60 Exhaust Muffler - For Nissan Forklift

Exhaust Muffler

HELMAR FORKLIFT PARTS Exhaust Muffler - For Nissan Forklift
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Freightliner 04-21131-000 Exhaust Muffler - Aluminized Steel

Exhaust Muffler

FREIGHTLINER Exhaust Muffler - Aluminized Steel
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Helmar Forklift Parts 5800734-16 Exhaust Muffler - Aftermarket Replacement, For Yale

Exhaust Muffler

HELMAR FORKLIFT PARTS Exhaust Muffler - Aftermarket Replacement, For Yale
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Helmar Forklift Parts 17510-3677171 Aftermarket Replacement Muffler - For Toyota Forklift Parts

Exhaust Muffler

HELMAR FORKLIFT PARTS Aftermarket Replacement Muffler - For Toyota Forklift Parts
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Walker Exhaust 22789 Heavy Duty Direct Fit Exhaust Muffler 4" Inlet (Inside) 4" Outlet (Inside)

Exhaust Muffler

WALKER EXHAUST Heavy Duty Direct Fit Exhaust Muffler 4" Inlet (Inside) 4" Outlet (Inside) 00086387227896
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Donaldson M120749 Exhaust Muffler - 31.69 in. Overall length

Exhaust Muffler

DONALDSON Exhaust Muffler - 31.69 in. Overall length 742330114063
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Walker Exhaust 21835 Heavy Duty Direct Fit Exhaust Muffler 5" Inlet (Inside) 5" Outlet (Inside)

Exhaust Muffler

WALKER EXHAUST Heavy Duty Direct Fit Exhaust Muffler 5" Inlet (Inside) 5" Outlet (Inside) 00086387218351
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Walker Exhaust 22664 MUFFLER

Exhaust Muffler

WALKER EXHAUST MUFFLER 00086387226646
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Walker Exhaust 21470 Heavy Duty Direct Fit Exhaust Muffler 3.5" Inlet (Inside) 3.5" Outlet (Inside)

Exhaust Muffler

WALKER EXHAUST Heavy Duty Direct Fit Exhaust Muffler 3.5" Inlet (Inside) 3.5" Outlet (Inside) 00086387214704
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Walker Exhaust 22604 Heavy Duty Direct Fit Exhaust Muffler 3.5" Inlet (Inside) 4" Outlet (Inside)

Exhaust Muffler

WALKER EXHAUST Heavy Duty Direct Fit Exhaust Muffler 3.5" Inlet (Inside) 4" Outlet (Inside) 00086387226042
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Donaldson M100146 Exhaust Muffler - 32.01 in. Overall length

Exhaust Muffler

DONALDSON Exhaust Muffler - 32.01 in. Overall length 00742330005453
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Donaldson M085411 Exhaust Muffler - 24.27 in. Overall length

Exhaust Muffler

DONALDSON Exhaust Muffler - 24.27 in. Overall length 00742330113929
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Donaldson M120747 Exhaust Muffler - 34.00 in. Overall length

Exhaust Muffler

DONALDSON Exhaust Muffler - 34.00 in. Overall length 00742330114049
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Donaldson M120418 Exhaust Muffler - 28.26 in. Overall length

Exhaust Muffler

DONALDSON Exhaust Muffler - 28.26 in. Overall length 00742330006009
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Automann 562.U65091 Exhaust Resonator, 5-inch Inlet and Outlet Heavy Duty Diesel Engine Muffler

Exhaust Resonator

AUTOMANN Exhaust Resonator, 5-inch Inlet and Outlet Heavy Duty Diesel Engine Muffler
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Replacement for John Deere AT220299 Exhaust Muffler, for John Deere Dozer

Exhaust Muffler

REPLACEMENT FOR JOHN DEERE Exhaust Muffler, for John Deere Dozer
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Freightliner 04-20621-002 Exhaust Muffler - Sterling, S.O, Weld Bands

Exhaust Muffler

FREIGHTLINER Exhaust Muffler - Sterling, S.O, Weld Bands
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Donaldson M000122 Air intake Silencer - 12.75 in. x 8.50 in. x 3.38 in. depth

Exhaust Muffler

DONALDSON Air intake Silencer - 12.75 in. x 8.50 in. x 3.38 in. depth 00742330004296
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Donaldson M101182 Exhaust Muffler - 51.00 in. Overall length, Special

Exhaust Muffler

DONALDSON Exhaust Muffler - 51.00 in. Overall length, Special 00742330108529
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Mufflers at FinditParts.com

Reduce noise and emissions with high-performance mufflers available at FinditParts.com. Whether for a semi truck, trailer, or heavy-duty vehicle, our mufflers come in various part numbers and part names designed to fit your vehicle perfectly. As America’s largest online supplier of heavy-duty truck parts, we deliver the best selection and competitive pricing, backed by fast and reliable shipping. Use our online catalog and quick lookup-by-part tool to easily cross-reference mufflers that meet your needs. With genuine parts, no-hassle returns, and expert customer service, you can buy with confidence. Quiet down your ride—get your muffler today at FinditParts.com!

Choosing the best muffler for noise reduction and emissions control is easy; consider the factors below: 

  • Material Choice: Choose a muffler material, such as stainless steel for durability or aluminized steel for cost savings.
  • Noise Level: Consider the noise reduction level you need, whether you prefer a quieter or more performance-oriented sound.
  • Design & Airflow: Check the design for optimal airflow, which contributes to better fuel efficiency and engine performance.
  • Compatibility: Ensure the muffler is compatible with your truck’s exhaust system and meets emissions standards.
  • Durability: Look for mufflers designed for semi trucks or heavy-duty trucks to ensure long-lasting performance under tough driving conditions.

Below are common concerns when selecting mufflers for semi-trucks and heavy-duty vehicles:

How do I choose the best muffler for noise reduction?

Look for mufflers with noise-canceling technology or multiple chambers to minimize engine sound.

What materials are the most durable for truck mufflers?

Stainless steel and aluminized steel are both highly durable and resistant to corrosion.

How often should I replace my muffler to ensure emissions compliance?

Replace your muffler every 3-5 years or sooner if you notice excessive noise or reduced engine efficiency.

Are these mufflers designed to fit specific truck models?

Yes, always check the product’s fitment guide to ensure compatibility with your truck’s exhaust system.

Do mufflers from FinditParts come with a warranty?

Most mufflers include a manufacturer-backed warranty to protect against defects and early failure.