$20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: CLASSIC

$20 Off $250 / $40 Off $500 / $80 Off $1,000
Use Promo Code: CLASSIC

Save Now on Select Restoration Parts & Supplies!

Selected Filters


Loading...

Availability


BUICK Catalytic Converters

Individual Parts

Results 1 - 16 of 16

Catalytic Converter 08-15 6 Cyl 3.6L Engine, Front Left

Part Number: CTO-5240

Not Yet Reviewed

Estimated Ship Date: Feb 3, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 3, 2026 if ordered today

Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Front Right Position, Buick, 3.6L, Each

Part Number: MPE-551300

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

This product may not be eligible for select promotional offers

Catalytic Converter, Federal / EPA Catalytic Converter - Direct Fit

Part Number: CTO-5372

Not Yet Reviewed

Estimated Ship Date: Feb 3, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 3, 2026 if ordered today

Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, Stainless Steel Case, 17.00 in. Overall Length, Front Left, Buick, Chevrolet, GMC, Each

Part Number: APH-644166

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 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 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 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 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, 13.00 in. Overall Length, Front Left, Buick, 3.6L, Each

Part Number: APH-641564

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

EPA OBDII Direct Fit Converter

Part Number: CTO-1344

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 2, 2026 if ordered today

Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, Ceramic Honeycomb Substrate, 16.00 in. Overall Length, Front Left, Buick, Each

Part Number: APH-641444

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 6, 2026 if ordered today

Ultra EPA Catalytic Converter

Part Number: WLK-16872

Not Yet Reviewed

Estimated Ship Date: Feb 10, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 10, 2026 if ordered today

Catalytic Converter 14-16 6 Cyl. 3.6L Engine, FWD, PZEV Emissions, Front Left

Part Number: CTO-1376

Not Yet Reviewed

Estimated Ship Date: Feb 3, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 3, 2026 if ordered today

Catalytic Converter, Stainless Steel, Buick, 3.0L, Passenger Side Front, Each

Part Number: MPE-52001

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

This product may not be eligible for select promotional offers

Catalytic Converters Conv DF 2010-2011 LaCrosse 3.6 L Underbody

Part Number: MPE-52300

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

This product may not be eligible for select promotional offers

Catalytic Converter, EPA OBDII direct fit catalytic converter

Part Number: CTO-1468

Not Yet Reviewed

Estimated Ship Date: Feb 3, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 3, 2026 if ordered today

Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Front Left Position, Buick, 3.0L, Each

Part Number: MPE-551401

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

This product may not be eligible for select promotional offers

Catalytic Converter, Universal, One Inlet, Ceramic Honeycomb, Stainless Steel, 2.25 in. Slip Fit Inlet/Outlet, 7 in. Length, Each

Part Number: MPE-551005

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

This product may not be eligible for select promotional offers

  • 1
  • Page 1 of 1

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.