Availability
BUICK Catalytic Converters
Showing In Stock Items. Show All 68 Items.
Catalytic Converter, Walker CalCat Direct Fit Converter
Part Number: WLK-84589
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
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: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Catalytic Converter, Universal, One Inlet, Ceramic Honeycomb, Stainless Steel, 2.25 in. Slip Fit Inlet/Outlet, 9.125 in. Length, Each
Part Number: MPE-5461205
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Buick, Chevy, Pontiac, 3.1L, 3.4L, Each
Part Number: MPE-4481433
Not Yet Reviewed
Estimated Ship Date: Feb 17, 2026 if ordered today
Estimated Ship Date: Feb 17, 2026 if ordered today
Catalytic Converter, Direct-Fit, Front, Buick, GMC, Saturn, 3.6L, Each
Part Number: MPE-5451445
Not Yet Reviewed
Estimated Ship Date: Feb 17, 2026 if ordered today
Estimated Ship Date: Feb 17, 2026 if ordered today
Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Buick, Pontiac, 3.8L, 4.6L, Each
Part Number: MPE-4561333
Not Yet Reviewed
Estimated Ship Date: Feb 17, 2026 if ordered today
Estimated Ship Date: Feb 17, 2026 if ordered today
Catalytic Converter, Stainless Steel, Each
Part Number: MPE-49650
Not Yet Reviewed
Estimated Ship Date: Feb 17, 2026 if ordered today
Estimated Ship Date: Feb 17, 2026 if ordered today
Conv Univ 2.50" Spun CA
Part Number: MPE-4651306
Not Yet Reviewed
Estimated Ship Date: Feb 17, 2026 if ordered today
Estimated Ship Date: Feb 17, 2026 if ordered today
Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Buick, Chevy, Oldsmobile, Pontiac, 3.8L, Each
Part Number: MPE-4481405
Not Yet Reviewed
Estimated Ship Date: Feb 17, 2026 if ordered today
Estimated Ship Date: Feb 17, 2026 if ordered today
Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Buick, Chevrolet, Each
Part Number: MPE-5411905
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Buick, Pontiac, 3.8L, Each
Part Number: MPE-5461333
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converter, California Grade, Universal, Stainless Steel Case, 9.000 in. Overall Length, 2.500 in. Inlet/Outlet, Each
Part Number: MPE-5551206
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converter, Universal, 13.250 in. Length, 2.250 in. Inlet and Outlet, Each
Part Number: MPE-5451305
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Left Position, 26.750 in. Overall Length, Buick, Cadillac, Chevrolet, Each
Part Number: MPE-4481184
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Buick, Oldsmobile, Pontiac, 3.8L, Each
Part Number: MPE-4481464
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converter, Walker CalCat Direct Fit Converter
Part Number: WLK-84585
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-84582
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Catalytic Converters, Universal, Stainless Steel Case, 3.000 in. Slip Fit Inlet, 2.750 in. Slip Fit Outlet, 16.500 in. Overall Length, Each
Part Number: WLK-84507
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Catalytic Converter, Universal, One Inlet, Ceramic Honeycomb, Stainless Steel, 3 in. Slip Fit Inlet/Outlet, 8.75 in. Length, Each
Part Number: MPE-5461209
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converter
Part Number: MPE-557000
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converter, Universal, 13.000 in. Length, 2.500 in. Inlet and Outlet, Each
Part Number: MPE-5451306
Not Yet Reviewed
Estimated Ship Date: Feb 19, 2026 if ordered today
Estimated Ship Date: Feb 19, 2026 if ordered today
Catalytic Converter, Stainless Steel, Buick, 3.0, 3.6L, Rear, Each
Part Number: MPE-52000
Not Yet Reviewed
Estimated Ship Date: Feb 19, 2026 if ordered today
Estimated Ship Date: Feb 19, 2026 if ordered today
Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Rear, 21.625 in. Overall Length, Buick, Chevy, GMC, Saturn, 3.6L, Each
Part Number: MPE-5592579
Not Yet Reviewed
Estimated Ship Date: Feb 17, 2026 if ordered today
Estimated Ship Date: Feb 17, 2026 if ordered today
Catalytic Converter, Universal, One Inlet, Ceramic Honeycomb, Stainless Steel, 2.50 in. Slip Fit Inlet/Outlet, 9 in. Length, Each
Part Number: MPE-5561206
Not Yet Reviewed
Estimated Ship Date: Feb 17, 2026 if ordered today
Estimated Ship Date: Feb 17, 2026 if ordered today
Catalytic Converter, Direct-Fit, Rear, Buick, GMC, Saturn, 3.6L, Each
Part Number: MPE-5451446
Not Yet Reviewed
Estimated Ship Date: Feb 19, 2026 if ordered today
Estimated Ship Date: Feb 19, 2026 if ordered today
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