Availability
Mufflers
Showing In Stock Items. Show All 96 Items.
Muffler, Quiet Tone Series, Round, Steel, Aluminized, 4 in. Center Inlet/Outlet, 30 in. Length, Each
Part Number: MBR-M1004A
Estimated Ship Date: Today
Estimated Ship Date: Today
BUILD IT WITH SUMMIT!
Muffler, Replacement, For Summit® 4" Aluminized Steel Diesel Kits, Each
Part Number: SUM-630100
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Race Bullet, 4 in. Inlet/4 in. Outlet, Steel, Aluminized, Each
Part Number: WLK-24217
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Pro Series, 4.0 in. Inlet/4.0 in. Outlet, Steel, Black, 24.0 in. Length, Each
Part Number: FLO-14020100
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Ultra Flo Welded, 4 in. Inlet/4 in. Outlet, Stainless Steel, Each
Part Number: WLK-17537
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Maximum Flow, 4 in. Inlet/4 in. Outlet, 14 in. Case Length, Steel, Aluminized, Each
Part Number: HOK-21609HKR
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Heavy-Duty, Round, Steel, Aluminized, 4.00 in. Offset Inlet/Outlet, 31.50 in. Overall Length, Each
Part Number: WLK-21969
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Ultra Flo Welded, 4 in. Inlet/4 in. Outlet, Stainless Steel, Each
Part Number: WLK-17225
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Heavy Duty, 4 in. Inlet/4 in. Outlet, Stainless Steel, Natural, Each
Part Number: WLK-22572
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Heavy Duty, 4 in. Inlet/4 in. Outlet, Stainless Steel, Each
Part Number: WLK-21172
Estimated Ship Date: Today
Estimated Ship Date: Today
Mufflers, Heavy-Duty, Steel, Aluminized, 40.000 in. Overall Length, Mack, Each
Part Number: WLK-21838
Estimated Ship Date: Today
Estimated Ship Date: Today
Mufflers, M-80, Round Case, Steel, Red Powdercoated, Single 4.00 in. Center Inlet/Outlet, 19.000 in. Overall Length, Each
Part Number: IMM-M80400
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Delta Force One Chamber, 4 in. Inlet/4 in. Outlet, Steel, Black, Each
Part Number: FLO-954010-12
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Mufflers, Heavy-Duty, Steel, Aluminized, 39.000 in. Overall Length, Blue Bird, Chevy, GMC, Each
Part Number: WLK-22643
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Outlaw, Shorty, 4 in. Inlet Diameter, 4 in. Outlet Diameter, Steel, Black, Each
Part Number: FLO-15440S
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Mega-Flow, Round, Chambered, Steel, Aluminized, 4 in. Center Inlet and Outlet, 51 in. Length, Each
Part Number: WLK-22965
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Quiet-Flow SS, Oval, Offset/Offset, Stainless Steel, Natural, Dodge, Each
Part Number: WLK-54637
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Glasspack, 4.000 in. Inlet/4.000 in. Outlet, Steel, Red, Each
Part Number: IMM-87528CB
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, OE Replacement, Steel, Aluminized, Dodge, 5.9L, Diesel, Each
Part Number: APH-2519
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Muffler, Heavy-Duty, Oval, Steel, Aluminized, 4.00 in. Offset Inlet/Outlet, 34.00 in. Overall Length, Each
Part Number: WLK-22004
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Heavy-Duty, 4.00 in. Center Inlet/Outlet, 51.50 in. Overall Length, Steel, Aluminized, Each
Part Number: WLK-22916
Estimated Ship Date: Apr 9, 2026 if ordered today
Estimated Ship Date: Apr 9, 2026 if ordered today
Muffler, TruckEx, Round Case, 43 1/2 in. Long x 10 in. Diameter, 51 in. Overall Length, Internal Perforated, Steel, Aluminized, Heavy-Duty, Ford, Each
Part Number: APH-3714
Not Yet Reviewed
Estimated Ship Date: Apr 3, 2026 if ordered today
Estimated Ship Date: Apr 3, 2026 if ordered today
Walker Heavy Duty Muffler
Part Number: WLK-22664
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, TruckEx, Steel, Aluminized, Universal, Each
Part Number: APH-3887
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Muffler, Replacement, 4.0 in. Inlet/4.0 in. Outlet, 37.0 in. Length, Steel, Natural, Each
Part Number: WLK-21471
Estimated Ship Date: Today
Estimated Ship Date: Today
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