1981 Mercury Marquis Catalytic Converters
Save up to 40% on original replacement 1981 Mercury Marquis Catalytic Converters. Navigate our online catalogue to find Catalytic Converters and other parts designed specifically to fit a 1981 Mercury Marquis.


Catalytic Converter - Left
$397.73
$260.91
In Stock
Ships: Today, Sep. 23rd
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.2L 255ci V8 (3.68x3.00; 93.5x76.2);
Engine Base: 4.2L 255ci V8 (3.68x3.00; 93.5x76.2);
Vehicle Fitment Notes:
with Air Tube with Federal Emissions System May Require Part Number 35574 Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation
with Air Tube with Federal Emissions System May Require Part Number 35574 Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation

Catalytic Converter - Left
$397.73
$260.91
In Stock
Ships: Today, Sep. 23rd
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.0L 302ci V8 (4.00x3.00; 101.6x76.2); Sub-Model: Base;
Engine Base: 5.0L 302ci V8 (4.00x3.00; 101.6x76.2); Sub-Model: Base;
Vehicle Fitment Notes:
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation

Catalytic Converter - Left
$397.73
$260.91
In Stock
Ships: Today, Sep. 23rd
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.0L 302ci V8 (4.00x3.00; 101.6x76.2); Sub-Model: Brougham;
Engine Base: 5.0L 302ci V8 (4.00x3.00; 101.6x76.2); Sub-Model: Brougham;
Vehicle Fitment Notes:
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation

Catalytic Converter - Left
$397.73
$260.91
In Stock
Ships: Today, Sep. 23rd
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.8L 5753cc 351ci V8 (4.00x3.50; 101.6x88.9);
Engine Base: 5.8L 5753cc 351ci V8 (4.00x3.50; 101.6x88.9);
Vehicle Fitment Notes:
with Air Tube with Federal Emissions System May Require Part Number 35574 Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation
with Air Tube with Federal Emissions System May Require Part Number 35574 Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation

Catalytic Converter - Right
$397.73
$260.91
In Stock
Ships: Today, Sep. 23rd
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.2L 255ci V8 (3.68x3.00; 93.5x76.2);
Engine Base: 4.2L 255ci V8 (3.68x3.00; 93.5x76.2);
Vehicle Fitment Notes:
with Air Tube with Federal Emissions System May Require Part Number 35574 Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation
with Air Tube with Federal Emissions System May Require Part Number 35574 Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation

Catalytic Converter - Right
$397.73
$260.91
In Stock
Ships: Today, Sep. 23rd
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.8L 5753cc 351ci V8 (4.00x3.50; 101.6x88.9);
Engine Base: 5.8L 5753cc 351ci V8 (4.00x3.50; 101.6x88.9);
Vehicle Fitment Notes:
with Air Tube with Federal Emissions System May Require Part Number 35574 Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation
with Air Tube with Federal Emissions System May Require Part Number 35574 Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation


Catalytic Converter - Left
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.2L 255ci V8 (3.68x3.00; 93.5x76.2);
Engine Base: 4.2L 255ci V8 (3.68x3.00; 93.5x76.2);
Vehicle Fitment Notes:
CARB Executive Order D-182-77 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Modifications and/or Additional Parts May Be Required for Installation Universal Type
CARB Executive Order D-182-77 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Modifications and/or Additional Parts May Be Required for Installation Universal Type


Catalytic Converter - Left
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.0L 302ci V8 (4.00x3.00; 101.6x76.2);
Engine Base: 5.0L 302ci V8 (4.00x3.00; 101.6x76.2);
Vehicle Fitment Notes:
CARB Executive Order D-182-77 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Modifications and/or Additional Parts May Be Required for Installation Universal Type
CARB Executive Order D-182-77 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Modifications and/or Additional Parts May Be Required for Installation Universal Type


Catalytic Converter - Left
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.8L 5753cc 351ci V8 (4.00x3.50; 101.6x88.9);
Engine Base: 5.8L 5753cc 351ci V8 (4.00x3.50; 101.6x88.9);
Vehicle Fitment Notes:
CARB Executive Order D-182-77 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Modifications and/or Additional Parts May Be Required for Installation Universal Type
CARB Executive Order D-182-77 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Modifications and/or Additional Parts May Be Required for Installation Universal Type


Catalytic Converter - Right
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.2L 255ci V8 (3.68x3.00; 93.5x76.2);
Engine Base: 4.2L 255ci V8 (3.68x3.00; 93.5x76.2);
Vehicle Fitment Notes:
CARB Executive Order D-182-77 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Modifications and/or Additional Parts May Be Required for Installation Universal Type
CARB Executive Order D-182-77 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Modifications and/or Additional Parts May Be Required for Installation Universal Type


Catalytic Converter - Right
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.0L 302ci V8 (4.00x3.00; 101.6x76.2);
Engine Base: 5.0L 302ci V8 (4.00x3.00; 101.6x76.2);
Vehicle Fitment Notes:
CARB Executive Order D-182-77 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Modifications and/or Additional Parts May Be Required for Installation Universal Type
CARB Executive Order D-182-77 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Modifications and/or Additional Parts May Be Required for Installation Universal Type


Catalytic Converter - Right
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.8L 5753cc 351ci V8 (4.00x3.50; 101.6x88.9);
Engine Base: 5.8L 5753cc 351ci V8 (4.00x3.50; 101.6x88.9);
Vehicle Fitment Notes:
CARB Executive Order D-182-77 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Modifications and/or Additional Parts May Be Required for Installation Universal Type
CARB Executive Order D-182-77 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Modifications and/or Additional Parts May Be Required for Installation Universal Type