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1991 Mufflers

Showing In Stock Items. Show All 16 Items.

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Results 1 - 13 of 13

Dynomax Ultra Flo Welded Round Steel 4 Inch Muffler 17537

Dynomax Ultra Flo Welded Round Steel 4 Inch Muffler 17537

Dynomax Ultra Flo Welded Round Steel 4 Inch Muffler 17537

Muffler, Ultra Flo Welded, 4 in. Inlet/4 in. Outlet, Stainless Steel, Each

Part Number: WLK-17537

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Walker Heavy-Duty Steel 4 Inch Muffler 22643

Walker Heavy-Duty Steel 4 Inch Muffler 22643

Walker Heavy-Duty Steel 4 Inch Muffler 22643

Mufflers, Heavy-Duty, Steel, Aluminized, 39.000 in. Overall Length, Blue Bird, Chevy, GMC, Each

Part Number: WLK-22643

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Walker Heavy-Duty Steel 4 Inch Muffler 21838

Walker Heavy-Duty Steel 4 Inch Muffler 21838

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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Estimated Ship Date: Tomorrow

Walker Heavy-Duty Steel 4 Inch Muffler 22936

Walker Heavy-Duty Steel 4 Inch Muffler 22936

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: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

AP Exhaust TruckEx Steel 4 Inch Muffler 3891

AP Exhaust TruckEx Steel 4 Inch Muffler 3891

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026

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AP Exhaust TruckEx Steel 4 Inch Muffler 3666

AP Exhaust TruckEx Steel 4 Inch Muffler 3666

AP Exhaust TruckEx Steel 4 Inch Muffler 3666

Muffler, TruckEx, Steel, Aluminized, Blue Bird, Each

Part Number: APH-3666

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

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Estimated Ship Date: Jan 16, 2026 if ordered today

Walker Heavy-Duty Steel 4 Inch Muffler 22642

Walker Heavy-Duty Steel 4 Inch Muffler 22642

Walker Heavy-Duty Steel 4 Inch Muffler 22642

Walker Heavy Duty Muffler

Part Number: WLK-22642

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Walker Heavy-Duty Steel 4 Inch Muffler 22899

Walker Heavy-Duty Steel 4 Inch Muffler 22899

Walker Heavy-Duty Steel 4 Inch Muffler 22899

Walker Heavy Duty Muffler

Part Number: WLK-22899

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

AP Exhaust TruckEx Steel 4 Inch Muffler 3715

AP Exhaust TruckEx Steel 4 Inch Muffler 3715

AP Exhaust TruckEx Steel 4 Inch Muffler 3715

Muffler, TruckEx, Steel, Aluminized, International, Each

Part Number: APH-3715

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

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Estimated Ship Date: Jan 16, 2026 if ordered today

Walker Heavy-Duty Steel 4 Inch Muffler 22941

Walker Heavy-Duty Steel 4 Inch Muffler 22941

Walker Heavy-Duty Steel 4 Inch Muffler 22941

Walker Heavy Duty Muffler

Part Number: WLK-22941

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

AP Exhaust TruckEx Steel 4 Inch Muffler 3710

AP Exhaust TruckEx Steel 4 Inch Muffler 3710

AP Exhaust TruckEx Steel 4 Inch Muffler 3710

Muffler, TruckEx, Steel, Aluminized, Chevy, L6, V8, Each

Part Number: APH-3710

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Walker Heavy-Duty Steel 4 Inch Muffler 22962

Walker Heavy-Duty Steel 4 Inch Muffler 22962

Walker Heavy-Duty Steel 4 Inch Muffler 22962

Walker Heavy Duty Muffler

Part Number: WLK-22962

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

AP Exhaust TruckEx Steel 4 Inch Muffler 3632

AP Exhaust TruckEx Steel 4 Inch Muffler 3632

AP Exhaust TruckEx Steel 4 Inch Muffler 3632

Muffler, TruckEx, Steel, Aluminized, Chevy, Ford, International, Thomas, Each

Part Number: APH-3632

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Estimated Ship Date: Jan 13, 2026 if ordered today

AP Exhaust TruckEx Steel 4 Inch Muffler 3669

AP Exhaust TruckEx Steel 4 Inch Muffler 3669

AP Exhaust TruckEx Steel 4 Inch Muffler 3669

Muffler, TruckEx, Steel, Aluminized, Ford, Each

Part Number: APH-3669

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

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Estimated Ship Date: Jan 16, 2026 if ordered today

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