Availability
2004 GMC Mufflers
Showing In Stock Items. Show All 29 Items.
Muffler, Ultra Flo Welded, 3 in. Inlet/3 in. Outlet, Stainless Steel, Each
Part Number: WLK-17223
Estimated Ship Date: Today
Estimated Ship Date: Today
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Muffler, Replacement, 3.0 in. Center Inlet/Dual 2.25 in. Outlets, Steel, Aluminized, Each
Part Number: SUM-638011
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
Muffler, Super Turbo, 3 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Aluminized, Each
Part Number: WLK-17674
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Salute, Oval, 3.000 in. Inlet/Two 2.500 in. Outlet, Stainless Steel, Natural, Each
Part Number: IMM-SA2198
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Vortex, 3.000 in. Inlet/3.000 in. Outlet, Steel, Gray Aluminized, Each
Part Number: IMM-88105CB
Estimated Ship Date: Today
Estimated Ship Date: Today
Mufflers, Direct Fit SoundFX, Steel, Aluminized, 29.000 in. Overall Length, Chevy, GMC, Each
Part Number: WLK-18823
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Super Turbo, 2 1/2 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Aluminized, Chevy, GMC, Pickup, Each
Part Number: WLK-17758
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Quiet-Flow SS, Oval, Stainless Steel, Natural, 24 in. Length, Chevy, GMC, Each
Part Number: WLK-21481
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Quiet-Flow 3, 2.625 in. Inlet/Outlet, Steel, Aluminized, Chevy, GMC, Each
Part Number: WLK-21423
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, SoundFX, Oval, Steel, Aluminized, Buick, Chevy, GMC, Isuzu, Oldsmobile, 4.2L, Each
Part Number: WLK-18915
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Tru-Fit Series, Steel, Aluminized, 2.75 in. Inlet/2.75 in. Outlet, Each
Part Number: WLK-18138
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Quiet-Flow 3, 2 3/4 in. Inlet/2 3/4 in. Outlet, Steel, Aluminized, Chevy, GMC, Pickup, Each
Part Number: WLK-21356
Estimated Ship Date: Today
Estimated Ship Date: Today
Mufflers, Direct-Fit SoundFX, Steel, Aluminized, 31.38 in. Overall Length, Chevrolet, GMC, Each
Part Number: WLK-18941
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
AP Exhaust MSL Maximum Steel 2.75 Inch Muffler 700254
Not Yet Reviewed
Estimated Ship Date: Mar 25, 2026
Mufflers, Direct Fit SoundFX, Steel, Aluminized, 31.000 in. Overall Length, Buick, Chevy, GMC, Isuzu, Oldsmobile, Pontiac, L6, V6, Each
Part Number: WLK-17165
Estimated Ship Date: Today
Estimated Ship Date: Today
Mufflers, Direct-Fit SoundFX, Steel, Aluminized, 24.00 in. Overall Length, Chevrolet, GMC, Isuzu, Each
Part Number: WLK-18913
Not Yet Reviewed
Estimated Ship Date: Mar 27, 2026 if ordered today
Estimated Ship Date: Mar 27, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
AP Exhaust MSL Maximum Steel 2.5 Inch Muffler 700376
Not Yet Reviewed
Estimated Ship Date: Mar 25, 2026
Muffler, OE Replacement, Steel, Aluminized, Buick, Chevy, GMC, Isuzu, Oldsmobile, Each
Part Number: APH-2406
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Mufflers-SoundFX
Part Number: WLK-18987
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Muffler, Quiet-Flow 3, 2 1/2 in. Inlet/2 1/4 in. Outlet, Steel, Aluminized, Chevy, GMC, Isuzu, Each
Part Number: WLK-21302
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Muffler, OE Replacement, Steel, Aluminized, Chevy, GMC, Isuzu, Oldsmobile, Each
Part Number: APH-2405
Estimated Ship Date: Mar 24, 2026 if ordered today
Estimated Ship Date: Mar 24, 2026 if ordered today
Muffler, Pro, 3.000 in. Inlet/2.500 in. Outlet, Steel, Aluminized, Each
Part Number: IMM-7421CB
Estimated Ship Date: Mar 20, 2026 if ordered today
Estimated Ship Date: Mar 20, 2026 if ordered today
Muffler, OE Replacement, Steel, Aluminized, Cadillac, Chevy, GMC, Each
Part Number: APH-2306
Estimated Ship Date: Mar 25, 2026 if ordered today
Estimated Ship Date: Mar 25, 2026 if ordered today
Muffler, OE Replacement, Steel, Aluminized, Chevy, GMC, Isuzu, Each
Part Number: APH-2438
Not Yet Reviewed
Estimated Ship Date: Mar 25, 2026 if ordered today
Estimated Ship Date: Mar 25, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Walker Quiet-Flow SS 409 Stainless Steel 2.5 Inch Muffler 21481
Not Yet Reviewed
Estimated Ship Date: Today
Muffler, OE Replacement, Steel, Aluminized, Chevy, GMC, Each
Part Number: APH-2191
Not Yet Reviewed
Estimated Ship Date: Mar 25, 2026 if ordered today
Estimated Ship Date: Mar 25, 2026 if ordered today
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