Mufflers Exhaust - 4 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 )

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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 )

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Walker Quiet-Flow SS 409 Stainless Steel 3 Inch Muffler 21725

Quiet-Flow SS Muffler

Part Number: WLK-21725

5.0 out of 5 stars ( 1 )

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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: Today

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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 )

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Walker Quiet-Flow SS 409 Stainless Steel 3 Inch Muffler 21507

Muffler, Quiet-Flow SS, Direct-Fit, Stainless Steel, Aluminized, Ford, Each

Part Number: WLK-21507

4.14 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Walker Heavy-Duty Steel 4 Inch Muffler 22888

Mufflers, Heavy-Duty, Steel, Aluminized, 4.00 in. Offset Inlet/Outlet, 42.000 in. Overall Length, Ford, 5.9L Diesel, 8.2L Diesel, Each

Part Number: WLK-22888

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

AP Exhaust OE Replacement Steel 3 Inch Muffler 2506

AP Exhaust OE Replacement Steel 3 Inch Muffler 2506

Muffler, OE Replacement, Steel, Aluminized, Ford, 6.0L, Diesel, Each

Part Number: APH-2506

Not Yet Reviewed

Estimated Ship Date: Nov 5, 2026 if ordered today

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Estimated Ship Date: Nov 5, 2026 if ordered today

Walker School Bus Steel 2.5 Inch Muffler 22866

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

Part Number: WLK-22866

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 2.5 Inch Muffler 3697

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026

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Walker Quiet-Flow SS 409 Stainless Steel 3 Inch Muffler 21447

Muffler, Quiet-Flow SS, Oval, Stainless Steel, Aluminized, 3.00 in. Offset Inlet/Outlet, 31.00 in. Overall Length, Each

Part Number: WLK-21447

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 OE Replacement Steel 3 Inch Muffler 2506

Not Yet Reviewed

Estimated Ship Date: Nov 5, 2026

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AP Exhaust Challenge Steel Inch Muffler 2648

Mufflers, Muffler - CHALLENGE

Part Number: APH-2648

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

MBRP Performance Exhaust Mufflers AT-8111P

Muffler

Part Number: MBR-AT-8111P

Not Yet Reviewed

Estimated Ship Date: Dec 28, 2026 if ordered today

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Estimated Ship Date: Dec 28, 2026 if ordered today

MBRP Performance Exhaust Mufflers AT-9111PT

Muffler

Part Number: MBR-AT-9111PT

Not Yet Reviewed

Estimated Ship Date: Dec 28, 2026 if ordered today

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Estimated Ship Date: Dec 28, 2026 if ordered today

Walker Heavy-Duty Steel 4 Inch Muffler 21833

Muffler, Heavy-Duty, Oval, Steel, Aluminized, 4.00 in. Offset Inlet/Outlet, 36.00 in. Overall Length, Each

Part Number: WLK-21833

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Nov 16, 2026 if ordered today

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Estimated Ship Date: Nov 16, 2026 if ordered today