Mufflers

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: Today

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: Today

• Oversize $15.99

Walker Heavy Duty Muffler

Part Number: WLK-22936

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 18, 2026 if ordered today

• Drop Ship
• Oversize $15.99
• Special Order

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: Today

• Free Shipping

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

• Free Shipping

Walker Heavy Duty Muffler

Part Number: WLK-22962

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2026 if ordered today

• Drop Ship
• Oversize $15.99
• Special Order

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

• Drop Ship
• Oversize $15.99
• Special Order