How to service and repair the catalytic converter on Mercury Mariner?

To service the catalytic converter, position the vehicle on a hoist in neutral. Avoid oil-based lubricants on insulators. Remove and discard the catalytic converter nuts, U-bolt clamp, and resonator nuts, tightening replacements to 47 Nm (35 ft. lbs.). Finally, separate the converter from the muffler and install new gaskets.

How to service and repair the catalytic converter on Mercury Grand Marquis?

In order to fix the catalytic converter, turn off the fire suppress system and put the car on a hoist. Disassemble the H02S and CMS sensors, replacements of old nuts and bolts, and mount a new converter using anti-seize lubricant. Dust down, and replace new fasteners and connect properly prior to re-powering the fire suppression system.

OEM Mercury Catalytic Converter

Cat. Converter

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186 Catalytic Converters found

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Mercury Catalytic Converter, Front Driver Side Part Number: 9G1Z-5E213-B
$375.26 MSRP: $465.71
You Save: $90.45 (20%)
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Product Specifications
- Other Name: Converter Assembly; Catalytic Converter, Front, Left; Converter; Preconverter
- Position: Front Driver Side
Fits the following Mercury Models:
- Sable | 2008-2009 | Base, Premier | 6 Cyl 3.5 L GAS
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Mercury Exhaust Manifold, Front Driver Side Part Number: 7E5Z-5G232-AA
$1308.63 MSRP: $1810.36
You Save: $501.73 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Manifold Assembly - Exhaust; Catalytic Converter with Integrated Exhaust Manifold, Left; Manifold W/Converter; Manifold; Preconverter; Catalytic Converter
- Position: Front Driver Side
Fits the following Mercury Models:
- Milan | 2007-2008 | Base, Premier | 6 Cyl 3.0 L GAS
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Mercury Exhaust Manifold Part Number: AE5Z-5G232-A
$1962.98 MSRP: $2486.00
You Save: $523.02 (22%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter Assembly; Catalytic Converter; Manifold W/Converter; Preconverter
Fits the following Mercury Models:
- Milan | 2010-2011 | Hybrid | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)
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Mercury Catalytic Converter, Green, Rear Passenger Side Part Number: AE5Z-5E212-H
$368.82 MSRP: $451.00
You Save: $82.18 (19%)
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Product Specifications
- Other Name: Converter Assembly; Catalytic Converter, Rear Forward
- Position: Rear Passenger Side
Fits the following Mercury Models:
- Milan | 2010-2011 | Premier | 6 Cyl 3.0 L FLEX
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Mercury Catalytic Converter, Rear Part Number: AE5Z-5E212-P
$951.00 MSRP: $1194.29
You Save: $243.29 (21%)
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Product Specifications
- Other Name: Converter Assembly; Catalytic Converter, Rear
- Position: Rear
Fits the following Mercury Models:
- Milan | 2010-2011 | Hybrid | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)
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Mercury Catalytic Converter, Passenger Side Part Number: 8G1Z-5E212-H
$1863.38 MSRP: $2352.86
You Save: $489.48 (21%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter Assembly; Preconverter
- Position: Passenger Side
Fits the following Mercury Models:
- Sable | 2008-2009 | Base, Premier | 6 Cyl 3.5 L GAS
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Mercury Catalytic Converter, Rear Part Number: 8G1Z-5E212-F
$2427.00 MSRP: $3068.57
You Save: $641.57 (21%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter Assembly; Catalytic Converter, Rear; Converter
- Position: Rear
Fits the following Mercury Models:
- Sable | 2008-2009 | Base, Premier | 6 Cyl 3.5 L GAS
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Mercury Exhaust Manifold, Green, Driver Side Part Number: AE5Z-5G232-B
$784.88 MSRP: $990.00
You Save: $205.12 (21%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Exhaust Manifold And Catalyst; Catalytic Converter with Integrated Exhaust Manifold, Left; Manifold Converter; Manifold; Preconverter; Exhaust Manifold & Catalyst Assembly; Integrated Catalytic Converter
- Position: Driver Side
Fits the following Mercury Models:
- Milan | 2010-2011 | Premier | 6 Cyl 3.0 L FLEX
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Mercury Catalytic Converter Part Number: 6L8Z-5E212-C
Product Specifications
- Other Name: Converter Assembly; Converter
Fits the following Mercury Models:
- Mariner | 2005-2007 | Luxury, Premier | 6 Cyl 3.0 L GAS
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Mercury Catalytic Converter, Driver Side Part Number: 9W1Z-5E212-B
$1107.38 MSRP: $1392.86
You Save: $285.48 (21%)
Product Specifications
- Other Name: Converter Assembly; Catalytic Converter, Left; Converter
- Position: Driver Side
Fits the following Mercury Models:
- Grand Marquis | 2009-2011 | LS | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Exhaust Manifold, Driver Side Part Number: 9E5Z-5G232-A
$854.63 MSRP: $1078.57
You Save: $223.94 (21%)
Product Specifications
- Other Name: Exhaust Manifold And Catalyst; Catalytic Converter with Integrated Exhaust Manifold, Left; Manifold; Preconverter; Exhaust Manifold And Catalyst Assembly; Catalytic Converter
- Position: Driver Side
Fits the following Mercury Models:
- Milan | 2010-2011 | Premier | 6 Cyl 3.0 L FLEX
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Mercury Catalytic Converter, Passenger Side Part Number: YF1Z-5E212-CA
Product Specifications
- Other Name: Converter Assembly; Exhaust Pipe; Converter & Pipe
- Position: Passenger Side
Fits the following Mercury Models:
- Sable | 2000-2003 | GS, LS, LS Premium | 6 Cyl 3.0 L GAS
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Mercury Catalytic Converter, Passenger Side Part Number: 9W1Z-5E212-A
$823.50 MSRP: $1045.71
You Save: $222.21 (22%)
Product Specifications
- Other Name: Converter Assembly; Catalytic Converter, Right; Converter
- Position: Passenger Side
Fits the following Mercury Models:
- Grand Marquis | 2009-2011 | LS | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Catalytic Converter, Driver Side Part Number: 1F1Z-5E212-AA
Product Specifications
- Other Name: Converter Assembly; Exhaust Pipe; Converter & Pipe
- Position: Driver Side
Fits the following Mercury Models:
- Sable | 2001-2003 | LS, LS Premium | 6 Cyl 3.0 L GAS
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Mercury Catalytic Converter, Passenger Side Part Number: 1F1Z-5E212-AB
Product Specifications
- Other Name: Converter Assembly; Exhaust Manifold; Converter & Pipe
- Position: Passenger Side
Fits the following Mercury Models:
- Sable | 2001-2004 | GS, LS, LS Premium | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
View related parts
Mercury Catalytic Converter, Passenger Side Part Number: 1F1Z-5E212-CA
Product Specifications
- Other Name: Converter Assembly; Exhaust Pipe; Converter & Pipe
- Position: Passenger Side
Fits the following Mercury Models:
- Sable | 2001-2002 | GS, LS, LS Premium | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Catalytic Converter, Driver Side Part Number: 1F1Z-5F250-AA
Product Specifications
- Other Name: Converter Assembly; Exhaust Pipe; Converter & Pipe
- Position: Driver Side
Fits the following Mercury Models:
- Sable | 2001-2003 | GS, LS, LS Premium | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
View related parts
Mercury Converter & Pipe, Driver Side Part Number: 1F1Z-5F250-BA
Product Specifications
- Other Name: Converter Assembly; Catalytic Converter; Exhaust Pipe
- Position: Driver Side
Fits the following Mercury Models:
- Sable | 2004 | GS | 6 Cyl 3.0 L FLEX
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Mercury Exhaust Manifold, Passenger Side Part Number: 1F1Z-5G232-DA
Product Specifications
- Other Name: Converter Assembly; Manifold
- Position: Passenger Side
Fits the following Mercury Models:
- Sable | 2000-2005 | LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L GAS
View related parts
Mercury Catalytic Converter, Passenger Side Part Number: 3F1Z-5E212-AB
Product Specifications
- Other Name: Converter Assembly
- Position: Passenger Side
Fits the following Mercury Models:
- Sable | 2003-2004 | LS, LS Premium | 6 Cyl 3.0 L GAS

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Mercury Catalytic Converter Parts and Q&A

Exhaust Manifold, Passenger Side
5L8Z-5G232-CC
Q: How to service and repair the catalytic converter on Mercury Mariner?
A: To service the catalytic converter, position the vehicle on a hoist in neutral. Avoid oil-based lubricants on insulators. Remove and discard the catalytic converter nuts, U-bolt clamp, and resonator nuts, tightening replacements to 47 Nm (35 ft. lbs.). Finally, separate the converter from the muffler and install new gaskets.
Catalytic Converter, Driver Side
6W1Z-5E212-G
Q: How to service and repair the catalytic converter on Mercury Grand Marquis?
A: In order to fix the catalytic converter, turn off the fire suppress system and put the car on a hoist. Disassemble the H02S and CMS sensors, replacements of old nuts and bolts, and mount a new converter using anti-seize lubricant. Dust down, and replace new fasteners and connect properly prior to re-powering the fire suppression system.