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Get the Best Priced Mercury Grand Marquis Catalytic Converter

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Mercury Grand Marquis Catalytic Converter Reviews
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Shop Mercury Grand Marquis Replacement Catalytic Converter

Wrap yourself in beauty, high-quality and cutting-edge style with the assistance of an enduring Mercury automobile. For quick performance and smooth driver control consumers select cars engineered by Mercury. Would a smart driver lay out a large sum on a beautiful luxury vehicle, only to be a skinflint with new aftermarket or OEM components? High-status cars including your well-appointed Mercury Grand Marquis were made to be used with care and attention and then given proper repairs. To preserve the value and appearance you made an investment in with your Mercury Grand Marquis, it's critical to select only the top names in OEM and upgrade auto parts. The Mercury in your carport was put together with care and craftsmanship; it needs new replacement parts with the same top level of value. Drivers who revel in performance vehicles know that nothing is more crucial than getting the most durable aftermarket parts. If you bought your high-performance car to enjoy its superb engine power and performance, keep up your investment by buying only the best new parts. Positioned in the exhaust system of the car or truck, the Mercury Grand Marquis Catalytic Converter functions to lower the overall harmful pollutants of the car by catalyzing a chemical process in your emissions. Effectively operating Mercury Grand Marquis Catalytic Converters are critical to be able to pass EPA regulations for motor vehicle running. Mercury Grand Marquis Catalytic Converters do their job by oxidizing pollutants in the exhaust into H20 and carbon dioxide, via a metal catalyst, such as platinum, rhodium, or palladium, then venting the catalyzed exhaust out the exhaust valve. If you treasure the performance of your Mercury, protect it with our superior parts. Owning a Mercury was a brilliant choice, now keeping it in showroom condition is also easy! Take advantage of www.PartsGeek.com every time you want top quality auto and truck parts to get world-class service and a competitive price every day.

We stock these Catalytic Converter brands for the Mercury Grand Marquis: Eastern CatalyticMagnaflowDECWalkerCatcoDIY Solutions

Catalytic Converters available for the following Mercury Grand Marquis years: 2011, 2010, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1991, 1990, 1989, 1988, 1987, 1986, 1985, 1984, 1983, 1982, 1981, 1980, 1979, 11, 10, 08, 07, 06, 05, 04, 03, 02, 01, 00, 99, 98, 97, 96, 91, 90, 89, 88, 87, 86, 85, 84, 83, 82, 81, 80, 79. This part is also sometimes called Mercury Grand Marquis Exhaust Converters. We stock catalytic converter parts for most Mercury models including Mountaineer, Sable, Cougar, Villager, Mariner, Montego, Milan, Tracer, Monterey, Marauder, Mystique, Capri, Topaz, Colony Park, Bobcat, Comet, Marquis, Monarch, Zephyr, Lynx and LN7.

Catalytic Converter for Mercury Grand Marquis - Partsgeek

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Review Fitment Notes
Showing 22 of 883 Results
Left Eastern Catalytic Catalytic Converter - for 2004 Mercury Grand Marquis 4.6L V8 - 30383 Click to Enlarge
5 Stars
Eastern Catalytic 30383
Catalytic Converter
Loading Reviews...
Part Number: 30383
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; From Serial W00-001; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Left
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$261.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2004 Mercury Grand Marquis 4.6L V8
Right Eastern Catalytic Catalytic Converter - for 2004 Mercury Grand Marquis 4.6L V8 - 30384 Click to Enlarge
5 Stars
Eastern Catalytic 30384
Catalytic Converter
Loading Reviews...
Part Number: 30384
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Right
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$259.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2004 Mercury Grand Marquis 4.6L V8
Right Eastern Catalytic Catalytic Converter - for 1996 Mercury Grand Marquis GS 4.6L V8 - 30316 Click to Enlarge
5 Stars
Eastern Catalytic 30316
Catalytic Converter
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Part Number: 30316
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Right
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$285.43
(77) In Stock
This Part Fits:
Catalog: B
Vehicle Sub Model Engine
1996 Mercury Grand Marquis GS 4.6L V8
Left Eastern Catalytic Catalytic Converter - for 2005 Mercury Grand Marquis 4.6L V8 - 30383 Click to Enlarge
5 Stars
Eastern Catalytic 30383
Catalytic Converter
Loading Reviews...
Part Number: 30383
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; From Serial W00-001; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Left
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$261.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2005 Mercury Grand Marquis 4.6L V8
Right Eastern Catalytic Catalytic Converter - for 2005 Mercury Grand Marquis 4.6L V8 - 30384 Click to Enlarge
5 Stars
Eastern Catalytic 30384
Catalytic Converter
Loading Reviews...
Part Number: 30384
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Right
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$259.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2005 Mercury Grand Marquis 4.6L V8
Right Eastern Catalytic Catalytic Converter - for 1997 Mercury Grand Marquis GS 4.6L V8 - 30316 Click to Enlarge
5 Stars
Eastern Catalytic 30316
Catalytic Converter
Loading Reviews...
Part Number: 30316
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Right
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$285.43
(77) In Stock
This Part Fits:
Catalog: B
Vehicle Sub Model Engine
1997 Mercury Grand Marquis GS 4.6L V8
Left Eastern Catalytic Catalytic Converter - for 1999 Mercury Grand Marquis 4.6L V8 - 30315 Click to Enlarge
5 Stars
Eastern Catalytic 30315
Catalytic Converter
Loading Reviews...
Part Number: 30315
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Left
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$296.43
(93) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
1999 Mercury Grand Marquis 4.6L V8
Left Eastern Catalytic Catalytic Converter - for 1996 Mercury Grand Marquis 4.6L V8 - 30315 Click to Enlarge
5 Stars
Eastern Catalytic 30315
Catalytic Converter
Loading Reviews...
Part Number: 30315
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Left
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$296.43
(93) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
1996 Mercury Grand Marquis 4.6L V8
Left Eastern Catalytic Catalytic Converter - for 1997 Mercury Grand Marquis 4.6L V8 - 30315 Click to Enlarge
5 Stars
Eastern Catalytic 30315
Catalytic Converter
Loading Reviews...
Part Number: 30315
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Left
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$296.43
(93) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
1997 Mercury Grand Marquis 4.6L V8
Right Eastern Catalytic Catalytic Converter - for 1999 Mercury Grand Marquis GS 4.6L V8 - 30316 Click to Enlarge
5 Stars
Eastern Catalytic 30316
Catalytic Converter
Loading Reviews...
Part Number: 30316
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Right
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$285.43
(77) In Stock
This Part Fits:
Catalog: B
Vehicle Sub Model Engine
1999 Mercury Grand Marquis GS 4.6L V8
Left Eastern Catalytic Catalytic Converter - for 2001 Mercury Grand Marquis 4.6L V8 - 30315 Click to Enlarge
5 Stars
Eastern Catalytic 30315
Catalytic Converter
Loading Reviews...
Part Number: 30315
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Left
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$296.43
(93) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2001 Mercury Grand Marquis 4.6L V8
Left Eastern Catalytic Catalytic Converter - for 2000 Mercury Grand Marquis 4.6L V8 - 30315 Click to Enlarge
5 Stars
Eastern Catalytic 30315
Catalytic Converter
Loading Reviews...
Part Number: 30315
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Left
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$296.43
(93) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2000 Mercury Grand Marquis 4.6L V8
Left Eastern Catalytic Catalytic Converter - for 1998 Mercury Grand Marquis 4.6L V8 - 30315 Click to Enlarge
5 Stars
Eastern Catalytic 30315
Catalytic Converter
Loading Reviews...
Part Number: 30315
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Left
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$296.43
(93) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
1998 Mercury Grand Marquis 4.6L V8
Right Eastern Catalytic Catalytic Converter - for 2001 Mercury Grand Marquis GS 4.6L V8 - 30316 Click to Enlarge
5 Stars
Eastern Catalytic 30316
Catalytic Converter
Loading Reviews...
Part Number: 30316
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Right
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$285.43
(77) In Stock
This Part Fits:
Catalog: B
Vehicle Sub Model Engine
2001 Mercury Grand Marquis GS 4.6L V8
Right Eastern Catalytic Catalytic Converter - for 1998 Mercury Grand Marquis GS 4.6L V8 - 30316 Click to Enlarge
5 Stars
Eastern Catalytic 30316
Catalytic Converter
Loading Reviews...
Part Number: 30316
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Right
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$285.43
(77) In Stock
This Part Fits:
Catalog: B
Vehicle Sub Model Engine
1998 Mercury Grand Marquis GS 4.6L V8
Left Magnaflow Catalytic Converter - for 1994 Mercury Grand Marquis 4.6L V8 - 94004 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 94004
Brand: Magnaflow
Notes: Universal Standard Grade Federal (Exc. CA) -- Cutting and Welding Required During Installation
Position: Left
Condition: New
Body Material: Stainless Steel
Material: Stainless Steel
Series: Standard Grade
Heat Shield Included: Yes
Shipping Options: Free Ground Shipping
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$122.00
with FREE Shipping
(9) In Stock
This Part Fits:
Catalog: F
Vehicle Engine
1994 Mercury Grand Marquis 4.6L V8
Left DEC Catalytic Converter - for 2000 Mercury Grand Marquis - W0133-1928208 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: W0133-1928208
Brand: DEC
Notes: C.A.R.B Compliant - California/New York Engine Family Number YFMXV04.6VB5 - Tier: Tier 1
Detailed Notes: C.A.R.B Certified and legal for sale and use in California and New York
Position: Left
Condition: New
Shipping Options: Ground, Overnight, 2 Day
5 Year / 50,000 Mile DEC Limited Warranty
*** Legal in California, Colorado, New York, and Maine ***
List Price:
$1,170.09
Our Price: $672.58
(3) In Stock
This Part Fits:
Catalog: A
Vehicle
2000 Mercury Grand Marquis
Right Walker Catalytic Converter - for 1991 Mercury Grand Marquis 5.0L V8 - 15694 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 15694
Brand: Walker
Notes: EPA -- Multi Converter Replacement; Only Failed Converters May be Replaced; Replaces Both Front & Rear OE Converters; with Air Tube; May Require Part Number 35574; Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Includes Rear Gasket; Standard Direct Fit Type
  • EPA COMPLIANT -- For use on pre-OBD vehicles, 1995 and older. Not legal for sale or use in CA. Legal in NY and ME on all pre-OBD vehicles only. Consult your state's aftermarket converter regulations for details.
  • DIRECT-FIT DESIGN -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn't require specialized fabrication and/or welding
  • STRONG AND DURABLE -- Features thick OE-style flanges, hangers and brackets for strength and durability
  • OE-STYLE DESIGN -- Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
  • BUY WITH CONFIDENCE -- Backed by Walker's 25,000-mile/40,000-kilometer emissions and 5-year 50,000-mile/80,000-kilometer structural integrity warranty. Visit Walkerexhaust.com for details.
Position: Right
Condition: New
Air Tube: Yes
Body Material: Stainless Steel
Substrate Material: Ceramic
Shipping Options: Ground
5 Year / 50,000 Mile Walker Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$131.08
(1) In Stock
This Part Fits:
Catalog: H
Vehicle Engine
1991 Mercury Grand Marquis 5.0L V8
Rear Left Magnaflow Catalytic Converter - for 2005 Mercury Grand Marquis 4.6L V8 - 451004 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 451004
Brand: Magnaflow
Notes: 2in. Universal California OBDII Catalytic Converter -- Certification Level : LEV1 ULEV; OE Spec; Cutting and Welding Required During Installation; CARB Executive Order D-193-110; Engine Family Number 5FMXV04.6VG8
Position: Rear Left
Condition: New
Body Material: Stainless Steel
Series: California
Material: Stainless Steel
Heat Shield Included: Yes
Shipping Options: Ground
*** Legal in California, Colorado, New York, and Maine ***
$394.98
(1) In Stock
This Part Fits:
Catalog: C
Vehicle Engine
2005 Mercury Grand Marquis 4.6L V8
Left Catco Catalytic Converter - for 2011 Mercury Grand Marquis 4.6L V8 - 5002 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 5002
Brand: Catco
Notes: Catalytic Converter -- Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
Position: Left
Condition: New
Shipping Options: Ground
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$265.98
(22) In Stock
This Part Fits:
Catalog: P
Vehicle Engine
2011 Mercury Grand Marquis 4.6L V8
Left DIY Solutions Catalytic Converter - for 2011 Mercury Grand Marquis 4.6L V8 - EXH00836 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: EXH00836
Brand: DIY Solutions
Notes: Catalytic Converter -- Driver Side; V8 4.6L
  • Direct Fit Replacement
  • Quality Tested - built to a strict level of product standards.
Position: Left
Condition: New
Package Contents: Gaskets
Shipping Options: Free Ground Shipping
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$246.95
with FREE Shipping
View Details
This Part Fits:
Catalog: Q
Vehicle Engine
2011 Mercury Grand Marquis 4.6L V8
Rear Right Walker Catalytic Converter - for 1994 Mercury Grand Marquis 4.6L V8 - 15037 Click to Enlarge
5 Stars
Walker 15037
Catalytic Converter
Loading Reviews...
Part Number: 15037
Brand: Walker
Notes: EPA -- Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and 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
  • EPA COMPLIANT -- For use on pre-OBDII vehicles, 1995 and older. Not legal for sale or use in CA. Legal in NY and ME on all pre-OBD vehicles only. Consult your state's aftermarket converter regulations for details.
  • NO BREAK IN REQUIRED -- Ready to operate with application-specific converter shell design and mat compression, no converter break in required after installation
  • DURABLE -- Features stainless-steel body with aluminized pipe and heat shields for durability
  • FLEXIBLE SOLUTION -- Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • OE-STYLE DESIGN -- Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
  • BUY WITH CONFIDENCE -- Backed by Walker's 25,000-mile/40,000-kilometer emissions and 5-year 50,000-mile/80,000-kilometer structural integrity warranty. Visit Walkerexhaust.com for details.
Position: Rear Right
Condition: New
Air Tube: No
Body Material: Stainless Steel
Substrate Material: Ceramic
Shipping Options: Ground
5 Year / 50,000 Mile Walker Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$97.98
(3) In Stock
This Part Fits:
Catalog: N
Vehicle Engine
1994 Mercury Grand Marquis 4.6L V8

Related Exhaust Parts

Research on Catalytic Converter for Mercury Grand Marquis

A catalytic converter in a Mercury Grand Marquis is a device located inside the exhaust system. Its responsibility is to convert pollutant gasses being produced by your car into less harmful gasses. The bad gasses produced by our cars are hydrocarbons, carbon monoxide, and nitrogen oxides. The carbon monoxide is converted into carbon dioxide. The hydrocarbons are turned into carbon dioxide and water and the nitrogen oxides are turned back into nitrogen and oxygen. This is all done through your 1999 Mercury Grand Marquis catalytic converter by using the catalyst of platinum and palladium coated on a ceramic honeycomb inside a package in the exhaust.

Is The Cat Converter Necessary?

Is it necessary to have a catalytic converter and the o2 sensors or is it an option to have a pipe that runs straight with the muffler connected with just the sensors? One of the main purposes of a 95 Grand Marquis catalytic converter is to reduce emissions of these harmful gasses into the air we breathe. Every year or every other year, in most states, cars are required to pass an emissions test. One of the specific failing signs is that your 2004 Mercury Grand Marquis catalytic converter is not working properly and reducing the harmful gasses to a state-approved level. By law, in these states that require emission testing, you will need to replace your cat converter if you have Grand Marquis catalytic converter failure.

The Problem that Caused the Problem

A very common mistake made is to realize that you're having Mercury Grand Marquis catalytic converter problems and begin to investigate the price and the process for replacing it with a new one. The challenge here is that when catalytic converters go bad there is an underlying cause. Something else in your vehicle is not working properly and if you put a new catalytic converter for 2002 Mercury Grand Marquis on your car, it will fail too. The logical first step is to find out what caused the original cat converter to go bad and fix that problem. An overheating situation inside your 1998 Mercury Grand Marquis catalytic converter is often what damages it. The overheating problems can have a few origins but they all result in an improper air and fuel mixture that causes extreme temperatures and warp or melt the ceramic honeycomb device that converts the gasses. The main point is to fix the contributing problem initially.

The Cost of Clean Air

If you bring your car to a local repair shop to replace your 2001 Mercury Grand Marquis catalytic converter be ready for a shock. The price will range between $1000-$2350 and this doesn't include fixing any contributing problem that caused your catalytic converter to fail in the first place. If you can do the work yourself you will save some money. Another way to save money is to shop an online parts supplier like PartGeeks.com. We can sell parts at a better price because we don't have a large overhead like the brick and mortar auto parts stores.

Mercury Grand Marquis Catalytic Converter Reviews
5 of 5
Verified Customer
7/14/13 10:09 PM - USA

Awesome!!!! Reasonable prices fast delivery, im in mechanic heaven lol. - marquis grand

- 1997 Mercury Grand Marquis Catalytic Converter
5 of 5
Verified Customer
8/12/13 10:43 AM - USA

Very pleased, good product, very quick delivery, Thanks Parts Geek!!!!! - j.peoples

- 2005 Mercury Grand Marquis Catalytic Converter
5 of 5
Verified Customer
9/6/13 10:00 PM - USA

the product and service are very good. My only complaint is that there was a gasket with the converter. If we had known this, we wouldn't have ordered one. The product description should show gasket included - catalytic converter

- 2004 Mercury Grand Marquis Catalytic Converter
5 of 5
Verified Customer
9/6/13 08:04 AM - USA

Exact part an excellent prices. I recommend Partsgeek to all my friends. Fast shipping. Thanks Partsgeek. - Jesse Gomez

- 2004 Mercury Grand Marquis Catalytic Converter
5 of 5
Verified Customer
11/27/13 09:54 AM - USA

I was very impress with the quality and the price. This was a bolt on product with no problems. Highly Recommended! - Excellent product

- 1999 Mercury Grand Marquis Catalytic Converter
5 of 5
Verified Customer
11/30/13 09:19 PM - USA

I have had excellent results since the converter has been installed - John Slater

- 2004 Mercury Grand Marquis Catalytic Converter