BUICK Catalytic Converters

Catalytic Converter, Walker CalCat Direct Fit Converter

Part Number: WLK-84589

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 23, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

• Free Shipping

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

• Drop Ship
• Free Shipping
• Special Order

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

• Drop Ship
• Free Shipping
• Special Order

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

• Drop Ship
• Free Shipping
• Special Order

Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Buick, Chevy, Pontiac, 3.8L, Each

Part Number: MPE-4561396

Not Yet Reviewed

Estimated Ship Date: Feb 17, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

• Drop Ship
• Free Shipping
• Special Order

Conv Univ 2.50" Spun CA

Part Number: MPE-4651306

Not Yet Reviewed

Estimated Ship Date: Feb 17, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Catalytic Converter, Stainless Steel, Each

Part Number: MPE-49650

Not Yet Reviewed

Estimated Ship Date: Feb 17, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

• Drop Ship
• Free Shipping
• Special Order

Manifold Converter

Part Number: RNB-673-049

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

• Drop Ship
• Free Shipping
• Special Order

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

• Drop Ship
• Free Shipping
• Special Order

Converter-CalCat-Direct Fit

Part Number: WLK-84582

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Catalytic Converter, Walker CalCat Direct Fit Converter

Part Number: WLK-84585

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

• Drop Ship
• Free Shipping
• Special Order

Catalytic Converter, Stainless Steel Case, for use on Acura®, Honda®, BMW, Chevy, Dodge, Land Rover, Volvo

Part Number: WLK-81712

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

• Drop Ship
• Free Shipping
• Special Order

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

• Drop Ship
• Free Shipping
• Special Order

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

• Drop Ship
• Free Shipping
• Special Order

Catalytic Converter

Part Number: MPE-557000

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

• Drop Ship
• Free Shipping
• Special Order

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

• Drop Ship
• Free Shipping
• Special Order

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

• Drop Ship
• Free Shipping
• Special Order