Mufflers Exhaust - 6 X 4 Drivetrain

Walker Heavy-Duty Steel 4 Inch Muffler 22004

Muffler, Heavy-Duty, Oval, Steel, Aluminized, 4.00 in. Offset Inlet/Outlet, 34.00 in. Overall Length, Each

Part Number: WLK-22004

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Walker Heavy-Duty Steel 4 Inch Muffler 21838

Mufflers, Heavy-Duty, Steel, Aluminized, 40.000 in. Overall Length, Mack, Each

Part Number: WLK-21838

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Walker School Bus Steel 5 Inch Muffler 22920

Muffler, Replacement, 5.0 in. Inlet/5.0 in. Outlet, 51.0 in. Length, Steel, Aluminized, Bluebird School Bus

Part Number: WLK-22920

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Walker Heavy-Duty Steel 4 Inch Muffler 22936

Walker Heavy Duty Muffler

Part Number: WLK-22936

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 16, 2026 if ordered today

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Estimated Ship Date: Nov 16, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

AP Exhaust TruckEx Steel 4 Inch Muffler 3891

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026

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Walker School Bus Steel 3.5 Inch Muffler 22551

Muffler, School Bus, 3 1/2 in. Inlet/4 in. Outlet, Steel, Aluminized, Each

Part Number: WLK-22551

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Walker Mega-Flow Steel 5 Inch Muffler 22963

Muffler, Mega-Flow, Round, Chambered, Steel, Aluminized, 5 in. Center Inlet and Outlet, 51 in. Length, Each

Part Number: WLK-22963

4.67 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

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Walker Quiet-Flow SS 409 Stainless Steel 2.5 Inch Muffler 21259

Muffler, Quiet-Flow SS, Round, Stainless Steel, Aluminized, Each

Part Number: WLK-21259

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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AP Exhaust MSL Maximum Steel 2.5 Inch Muffler 700365

AP Exhaust MSL Maximum Steel 2.5 Inch Muffler 700365

Mufflers, MSL Maximum, Steel, Aluminized, Perforated Tube, Oval Case, Chevrolet, GMC, Each

Part Number: APH-700365

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026 if ordered today

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Walker Direct-Fit SoundFX Steel 2.5 Inch Muffler 18906

5 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Walker Heavy-Duty Steel 4 Inch Muffler 22962

Walker Heavy Duty Muffler

Part Number: WLK-22962

Not Yet Reviewed

Estimated Ship Date: Nov 16, 2026 if ordered today

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Estimated Ship Date: Nov 16, 2026 if ordered today

Walker Heavy-Duty Steel 4 Inch Muffler 22941

Walker Heavy Duty Muffler

Part Number: WLK-22941

Not Yet Reviewed

Estimated Ship Date: Nov 16, 2026 if ordered today

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Estimated Ship Date: Nov 16, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

AP Exhaust TruckEx Steel 4 Inch Muffler 3712

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026

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AP Exhaust OE Replacement Steel 2.5 Inch Muffler 2452

Muffler, OE Replacement, Steel, Aluminized, Chevy, GMC, Each

Part Number: APH-2452

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026 if ordered today

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Estimated Ship Date: Nov 9, 2026 if ordered today

Walker Replacement Steel 5 Inch Muffler 22552

Muffler, Replacement, 5 in. Inlet/5 in. Outlet, Steel, Aluminized, Each

Part Number: WLK-22552

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Nov 17, 2026 if ordered today

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Estimated Ship Date: Nov 17, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

AP Exhaust TruckEx Steel 5 Inch Muffler 3647

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026

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