Availability
BUICK Exhaust
Resonator, Steel, Aluminized, Inlet Diameter 2.000 in., Outlet Diameter 2.500 in., Buick, GMC, Each
Part Number: WLK-53991
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Converter-CalCat-Direct Fit
Part Number: WLK-84266
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Catalytic Converter, Ultra Direct Fit, Stock Flange Inlet, Stock Flange Outlet, Ceramic Honeycomb, Heat Shield, Chevrolet, Pontiac, Saturn, Each
Part Number: WLK-55587
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
AP Exhaust Direct-Fit Catalytic Converters 643017
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026
CalCat CARB Catalytic Converter
Part Number: WLK-81326
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Ultra EPA Catalytic Converter
Part Number: WLK-14709
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Muffler, Quiet-Flow, Unique, Steel, Aluminized, Chevy, 2.5L, Each
Part Number: WLK-21859
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Mufflers-Quiet-Flow SS
Part Number: WLK-22169
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Mufflers-Quiet-Flow SS
Part Number: WLK-22170
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Mufflers-Quiet-Flow
Part Number: WLK-22223
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Catalytic Converter, Ultra Direct Fit, Stock Flange Inlet, Stock Flange Outlet, Ceramic Honeycomb, Buick, Each
Part Number: WLK-16776
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Ultra EPA Catalytic Converter
Part Number: WLK-16870
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
California Universal Catalytic Converter - 2.25in.
Part Number: MPE-5671605
Not Yet Reviewed
Estimated Ship Date: Feb 19, 2026 if ordered today
Estimated Ship Date: Feb 19, 2026 if ordered today
Muffler, TruckEx, Steel, Aluminized, Thomas, 7.2L, Each
Part Number: APH-4246
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, 16.00 in. Overall Length, Front Left, Buick, Cadillac, Chevrolet, Each
Part Number: APH-641476
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, Ceramic Honeycomb Substrate, 37.38 in. Overall Length, Buick, Chevy, Olds, Pontiac, Each
Part Number: APH-642583
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, Ceramic Substrate, 14.25 in. Overall Length, Buick, Chevrolet, GMC, Saturn, Each
Part Number: APH-644034
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converters, Direct-Fit, Stock Flange Inlet, 2.38 in. Slip Fit Outlet, Stainless Steel Case, 17.88 in. Length, Rear, Buick, Chevrolet, Each
Part Number: APH-644076
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, 48.13 in. Overall Length, Buick, Chevrolet, GMC, Isuzu, Saab, Each
Part Number: APH-645864
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Exhaust Manifold, OEM Replacement, Cast Iron, Buick, Chevrolet, GMC, Isuzu, Saab, Each
Part Number: RNB-674-990
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Exhaust Tips, Single, Rectangular, Clamp-on, Steel, Chrome, Slant Cut, 2.25 in. Inlet Diameter, Buick, Pair
Part Number: OPG-S240222
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Exhaust Manifold, OEM Replacement, Cast Iron, Buick, Chevrolet, GMC, Isuzu, Saab, Each
Part Number: RNB-674-785
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, Stainless Steel Case, 12.50 in. Overall Length, Front, Chevrolet, 2.5L, Each
Part Number: APH-641591
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, Ceramic Honeycomb Substrate, 15.13 in. Length, Buick, Chevrolet, GMC, Saturn, Each
Part Number: APH-644035
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converters, Direct-Fit, 3.33 in. Flare Inlet, Stock Flange Outlet, Ceramic Honeycomb Substrate, 14.00 in. Length, Front, Buick, Chevy, Each
Part Number: APH-644075
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converter, 12-15 4 Cyl. Buick Verano, 2.4L Engine, Front 10-16 4 Cyl. Buick LaCrosse, 2.4L Engine, Front
Part Number: APH-644092
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
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