Availability
2004 CHEVROLET Walker Exhaust Parts and Accessories
Catalytic Converter, Cal-Cat Universal, 2.500 in. Slip Fit Inlet, 2.500 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each
Part Number: WLK-81918
Estimated Ship Date: Apr 16, 2026 if ordered today
Estimated Ship Date: Apr 16, 2026 if ordered today
Exhaust Flange Gasket, Donut, Flat Style, 1 31/32 in. I.D. Hole, 1/8 in. Thick, Each
Part Number: WLK-31332
Estimated Ship Date: Today
Estimated Ship Date: Today
Mufflers, Direct Fit SoundFX, Steel, Aluminized, 28.000 in. Overall Length, Cadillac, Chevy, GMC, Each
Part Number: WLK-18957
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
Catalytic Converter, Ultra Direct Fit, Stock Flange Inlet, Stock Flange Outlet, Ceramic Honeycomb, Chevrolet, GMC, Hummer, Each
Part Number: WLK-16481
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
AP Exhaust Direct-Fit Catalytic Converters 642196
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026
Gasket, Exhaust Flange, Each
Part Number: WLK-31602
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, SoundFX, 2 in. Inlet/1 3/4 in. Outlet, Steel, Aluminized, Chevy, Pontiac, Each
Part Number: WLK-18439
Estimated Ship Date: Today
Estimated Ship Date: Today
Exhaust Flange Gasket, Composite, Nissan, Renault, Volvo, Each
Part Number: WLK-31307
Estimated Ship Date: Today
Estimated Ship Date: Today
Catalytic Converter, Ultra Direct Fit, Stock Flange Inlet, Slip Fit Outlet, Ceramic Honeycomb, Heat Flange, Chevrolet, GMC, Each
Part Number: WLK-53726
Not Yet Reviewed
Estimated Ship Date: Apr 16, 2026 if ordered today
Estimated Ship Date: Apr 16, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Catco Federal/EPA Direct-Fit Catalytic Converters 9990
Not Yet Reviewed
Estimated Ship Date: Apr 8, 2026
Exhaust Flange Gasket, Fiber, Steel Core, Ford, Pontiac, Subaru, Each
Part Number: WLK-31310
Estimated Ship Date: Today
Estimated Ship Date: Today
Mufflers, Direct-Fit SoundFX, Steel, Aluminized, 23.75 in. Overall Length, Chevrolet, Oldsmobile, Each
Part Number: WLK-18571
Estimated Ship Date: Today
Estimated Ship Date: Today
Exhaust Flange Gasket, Fiber with Steel Core, Each
Part Number: WLK-31336
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Quiet-Flow, Oval, Steel, Aluminized, 3.00 in. Offset Inlet/Outlet, 27.00 in. Overall Length, Each
Part Number: WLK-21522
Estimated Ship Date: Apr 16, 2026 if ordered today
Estimated Ship Date: Apr 16, 2026 if ordered today
Catalytic Converter, Direct Fit, Stainless Steel, Chevy, GMC, Oldsmobile, Each
Part Number: WLK-50542
Estimated Ship Date: Apr 16, 2026 if ordered today
Estimated Ship Date: Apr 16, 2026 if ordered today
Catalytic Converter, Direct-Fit, Stainless Steel, Each
Part Number: WLK-54423
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
AP Exhaust Direct-Fit Catalytic Converters 645448
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026
Exhaust Flange Gasket, 2 3/8 in. I.D. Hole, 2-Bolt, 4 5/16 in. on Center, Each
Part Number: WLK-31532
Estimated Ship Date: Today
Estimated Ship Date: Today
Catalytic Converter, Direct-Fit, Stainless Steel, Each
Part Number: WLK-16166
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
AP Exhaust Direct-Fit Catalytic Converters 645844
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026
Exhaust Flange Gasket, 2 25/64 in. I.D. Hole, 2-Bolt, 4 9/64 in. on Center, Each
Part Number: WLK-31578
Estimated Ship Date: Today
Estimated Ship Date: Today
Mufflers, Direct-Fit SoundFX, Steel, Aluminized, 32.50 in. Overall Length, Chevrolet, GMC, Oldsmobile, Each
Part Number: WLK-18813
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
Exhaust Resonator, Steel, Aluminized, Buick, Chevy, Pontiac, Each
Part Number: WLK-21398
Estimated Ship Date: Apr 16, 2026 if ordered today
Estimated Ship Date: Apr 16, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Catalytic Converter, Direct-Fit, Stainless Steel, Each
Part Number: WLK-53310
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
Exhaust Pipe, Intermediate Pipe, Steel, Aluminized, 2.75 in. O.D., Chevy, GMC, Each
Part Number: WLK-52216
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Mufflers, Direct-Fit SoundFX, Steel, Aluminized, 32.00 in. Overall Length, Buick, Chevrolet, Oldsmobile, Pontiac, Saturn, Each
Part Number: WLK-18942
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster