What is the general description and function of a catalytic converter on Mercury Mariner?

Because of a Federally-mandated extended warranty covering emission-related components such as the catalytic converter, it is advisable to check with a dealer service department before replacing the converter at your own expense. A catalytic converter is an emission control device in the exhaust system that reduces certain pollutants in the exhaust gas stream, with two types available: an oxidation catalyst that reduces hydrocarbons and carbon monoxide, and a reduction catalyst that reduces oxides of nitrogen. Models equipped with three-way catalysts can reduce all three pollutants. The test equipment for diagnosing a catalytic converter is expensive, so if malfunction is suspected, it is best to take the vehicle to a dealer or authorized emission inspection facility. When servicing underbody components, inspect the converter for leaks, corrosion, dents, and other damage, paying close attention to the welds and flange bolts that attach it to the exhaust system; any noted damage warrants replacement of the converter. Although catalytic converters are generally durable, they can become clogged or plugged. To check for a restricted converter, connect a vacuum gauge to an intake manifold vacuum source, warm the engine to operating temperature, place the transaxle in Park or Neutral, and apply the parking brake. Record the vacuum reading at idle, then quickly open and close the throttle, noting the vacuum reading after each test. If the fourth reading is more than one in-Hg lower than the idle reading, the exhaust system may be restricted, indicating a potential blockage in the catalytic converter or other exhaust components.

Genuine Mercury Mariner Catalytic Converter

Cat. Converter

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37 Catalytic Converters found

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Mercury Mariner Catalytic Converter
Part Number: AL8Z-5E212-H
$172.27 MSRP: $291.43
You Save: $119.16 (41%)
ADD TO CART
Product Specifications
- Other Name: Converter Assembly
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2011 Mercury Mariner | 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Catalytic Converter Assembly
Part Number: AL8Z-5E212-G
$653.22 MSRP: $1177.14
You Save: $523.92 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assy; Catalytic Converter
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2011 Mercury Mariner | 4 Cyl 2.5L Duratec (110kW/150PS) | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Exhaust Manifold Assembly
Part Number: 5M6Z-5G232-A
$1573.60 MSRP: $2097.01
You Save: $523.41 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Assembly - Exhaust
- Replaced by: AM6Z-5G232-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2008 Mercury Mariner | 4 Cyl 2.3L Hybrid Gas/Electric DOHC | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Catalytic Converter Assembly
Part Number: 6M6Z-5E212-A
$747.13 MSRP: $934.29
You Save: $187.16 (21%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assy; Catalytic Converter, Converter
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Mariner | 4 Cyl 2.3L Hybrid Gas/Electric DOHC | CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Exhaust Manifold Assembly
Part Number: AM6Z-5G232-A
$1573.60 MSRP: $2097.01
You Save: $523.41 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Assembly - Exhaust; Exhaust Manifold, Manifold, Manifold W/Converter
- Replaces: 5M6Z-5G232-BB, 5M6Z-5G232-A, 9M6Z-5G232-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2011 Mercury Mariner | 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L PFI Gas/Electric | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Catalytic Converter Assembly
Part Number: BL8Z-5E212-A
$847.14 MSRP: $1067.14
You Save: $220.00 (21%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assy; Catalytic Converter, Converter
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2011 Mercury Mariner | 4 Cyl 2.5L PFI Gas/Electric | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Exhaust Manifold Assembly
Part Number: 9M6Z-5G232-A
$1573.60 MSRP: $2097.01
You Save: $523.41 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Assembly - Exhaust
- Replaced by: AM6Z-5G232-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | 4 Cyl 2.5L PFI Gas/Electric | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Exhaust Manifold Assembly
Part Number: 5M6Z-5G232-BB
$1573.60 MSRP: $2097.01
You Save: $523.41 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Assembly - Exhaust
- Replaced by: AM6Z-5G232-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Mariner | 4 Cyl 2.3L Hybrid Gas/Electric DOHC | CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Catalytic Converter Assembly
Part Number: 9L8Z-5E212-D
$1309.70 MSRP: $1657.14
You Save: $347.44 (21%)
ADD TO CART
Product Specifications
- Other Name: Converter Assy; Catalytic Converter, Converter
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2010 Mercury Mariner | 4 Cyl 2.5L PFI Gas/Electric | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Catalytic Converter Assembly
Part Number: 6L8Z-5E212-C
Product Specifications
- Other Name: Converter Assy; Catalytic Converter, Converter
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006 Mercury Mariner | 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Catalytic Converter Assembly
Part Number: AL8Z-5E212-B
$418.43 MSRP: $515.71
You Save: $97.28 (19%)
Product Specifications
- Other Name: Converter Assy; Catalytic Converter, Converter
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2010-2011 Mercury Mariner | 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Exhaust Manifold Assembly
Part Number: 7L8Z-5G232-EA
$0.00
Product Specifications
- Other Name: Manifold Assembly - Exhaust; Manifold
- Position: Front
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007 Mercury Mariner | 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Converter Assembly
Part Number: 5L8Z-5E212-A
Product Specifications
- Other Name: Converter Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006 Mercury Mariner | 4 Cyl 2.3L | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Catalytic Converter Assembly
Part Number: 5L8Z-5E212-AA
Product Specifications
- Other Name: Converter Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Mariner | 4 Cyl 2.3L | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Exhaust Manifold Assembly
Part Number: 5L8Z-5G232-A
Product Specifications
- Other Name: Manifold Assembly - Exhaust; Exhaust Manifold, Manifold, Manifold W/Converter
- Replaces: 5L8Z-5G232-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2008 Mercury Mariner | 4 Cyl 2.3L | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Exhaust Manifold Assembly
Part Number: 5L8Z-5G232-AA
Product Specifications
- Other Name: Manifold Assembly - Exhaust
- Replaced by: 5L8Z-5G232-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Mariner | 4 Cyl 2.3L | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Exhaust Manifold Catalytic Converter Assembly
Part Number: 5L8Z-5G232-CC
Product Specifications
- Other Name: Converter Assy; Exhaust Manifold, Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Mariner | 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive)
View related parts
Mercury Mariner Exhaust Manifold Assembly
Part Number: 5L8Z-5G232-EA
Product Specifications
- Other Name: Manifold Assembly - Exhaust; Exhaust Manifold, Manifold
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Mariner | 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive)
View related parts
Mercury Mariner Catalytic Converter Assembly
Part Number: 5M6Z-5E212-A
Product Specifications
- Other Name: Converter Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006 Mercury Mariner | 4 Cyl 2.3L Hybrid Gas/Electric DOHC | CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Catalytic Converter Assembly
Part Number: 6L8Z-5E212-A
Product Specifications
- Other Name: Converter Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006 Mercury Mariner | 4 Cyl 2.3L | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)

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Mercury Mariner Catalytic Converter

We provide a wide range of Mercury Mariner Catalytic Converter at the best prices possible. If you need Mercury Mariner Catalytic Converter, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your door step with a fast delivery service.

Mercury Mariner Catalytic Converter Parts Questions & Experts Answers

Catalytic Converter Assembly
5L8Z-5E212-AA
Q: What is the general description and function of a catalytic converter on Mercury Mariner?
A: Because of a Federally-mandated extended warranty covering emission-related components such as the catalytic converter, it is advisable to check with a dealer service department before replacing the converter at your own expense. A catalytic converter is an emission control device in the exhaust system that reduces certain pollutants in the exhaust gas stream, with two types available: an oxidation catalyst that reduces hydrocarbons and carbon monoxide, and a reduction catalyst that reduces oxides of nitrogen. Models equipped with three-way catalysts can reduce all three pollutants. The test equipment for diagnosing a catalytic converter is expensive, so if malfunction is suspected, it is best to take the vehicle to a dealer or authorized emission inspection facility. When servicing underbody components, inspect the converter for leaks, corrosion, dents, and other damage, paying close attention to the welds and flange bolts that attach it to the exhaust system; any noted damage warrants replacement of the converter. Although catalytic converters are generally durable, they can become clogged or plugged. To check for a restricted converter, connect a vacuum gauge to an intake manifold vacuum source, warm the engine to operating temperature, place the transaxle in Park or Neutral, and apply the parking brake. Record the vacuum reading at idle, then quickly open and close the throttle, noting the vacuum reading after each test. If the fourth reading is more than one in-Hg lower than the idle reading, the exhaust system may be restricted, indicating a potential blockage in the catalytic converter or other exhaust components.