How to Properly Service and Repair a Muffler and Tail Pipe on Mercury Grand Marquis?

To service muffler and tail pipe, keep the vehicle in neutral and also on a hoist. Switch off air suspension system. Unclamp, remove nuts and clamp and tighten to 45 Nm on reinstallation. Separate components with an exhaust cutter, check and replace isolators as required and fit new fasteners without lubrication.

How to Maintain the Muffler on a Mercury Mariner?

To service the muffler, ensure the vehicle is in neutral on a hoist. Replace the catalytic converter and resonator nuts, tightening to 47 Nm (35 ft. lbs.). Remove the exhaust hanger and muffler as a single assembly, then reinstall, using new gaskets and avoiding oil-based lubricants on insulators.

OEM Mercury Muffler

Exhaust Muffler

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47 Mufflers found

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Mercury Muffler & Pipe, Rear Part Number: 8T5Z-5230-F
$495.56 MSRP: $679.92
You Save: $184.36 (28%)
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Product Specifications
- Other Name: Muffler And Pipe Assembly - Rear; Exhaust Muffler; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe; Muffler
- Position: Rear
- Replaces: 8T5Z-5230-C, 8T5Z-5230-A
Fits the following Mercury Models:
- Sable | 2008-2009 | Base, Premier | 6 Cyl 3.5 L GAS
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Mercury Muffler, Front Part Number: 9L8Z-5230-C
$536.86 MSRP: $705.97
You Save: $169.11 (24%)
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Product Specifications
- Other Name: Muffler Assembly - Front; Exhaust Muffler; Exhaust Muffler Assembly; Direct-Fit Exhaust; Exhaust System Kit
- Manufacturer Note: Single
- Position: Front
Fits the following Mercury Models:
- Mariner | 2009 | Base, Premier | 6 Cyl 3.0 L GAS
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Mercury Muffler Bracket, Front Passenger Side Part Number: YL2Z-5230-BA
$584.30 MSRP: $768.36
You Save: $184.06 (24%)
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Product Specifications
- Other Name: Muffler Assembly - Centre And Rear; Exhaust Muffler Bracket; Exhaust Muffler; Exhaust Bracket; Muffler
- Position: Front Passenger Side
Fits the following Mercury Models:
- Mountaineer | 2000-2001 | Base | 6 Cyl 4.0 L GAS
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Mercury Resonator W/Pipe Part Number: 5L8Z-5A212-DA
Product Specifications
- Other Name: Silencer Assembly; Exhaust Muffler; Direct-Fit Exhaust System Kit; Resonator and Pipe Assembly.; Muffler
Fits the following Mercury Models:
- Mariner | 2005-2008 | Base, Convenience | 4 Cyl 2.3 L GAS
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Mercury Muffler, Front Passenger Side Part Number: 6W7Z-5230-BB
Product Specifications
- Other Name: Muffler Assembly - Front; Exhaust Muffler, Right; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Muffler
- Position: Front Passenger Side
Fits the following Mercury Models:
- Grand Marquis | 2003-2011 | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
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Mercury Muffler, Front Driver Side Part Number: 6W7Z-5230-BC
Product Specifications
- Other Name: Muffler Assembly - Front; Exhaust Muffler, Left; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Muffler
- Position: Front Driver Side
- Replaces: 4W7Z-5230-BB
Fits the following Mercury Models:
- Grand Marquis | 2006-2007 | GS, LS | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Muffler & Pipe, Rear Part Number: 7L2Z-5230-B
Product Specifications
- Other Name: Muffler And Pipe Assembly - Rear; Direct-Fit Exhaust System Kit.; Muffler
- Position: Rear
- Replaces: 6L2Z-5230-BJ
Fits the following Mercury Models:
- Mountaineer | 2006-2010 | Luxury, Premier | 8 Cyl 4.6 L GAS
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Mercury Muffler, Front Part Number: XF5Z-5230-BA
Product Specifications
- Other Name: Muffler Assembly - Front
- Position: Front
Fits the following Mercury Models:
- Villager | 1999-2002 | Base, Estate, Sport | 6 Cyl 3.3 L GAS
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Mercury Rear Muffler Part Number: 6G1Z-5230-A
Product Specifications
- Other Name: Muffler And Pipe Assembly - Rear; Exhaust Muffler; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe; Muffler
- Position: Rear
- Replaces: 5G1Z-5230-A, 5G1Z-5230-C, 5G1Z-5230-CA
Fits the following Mercury Models:
- Montego | 2005-2007 | Luxury, Premier | 6 Cyl 3.0 L GAS
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Mercury Muffler & Pipe, Rear Part Number: 1L2Z-5230-AA
Product Specifications
- Other Name: Muffler And Pipe Assembly; Exhaust Muffler; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe; Muffler; Muffler And Pipe Assembly - Rear
- Manufacturer Note: Muffler asy.
- Position: Rear
Fits the following Mercury Models:
- Mountaineer | 2002-2003 | Base | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
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Mercury Muffler, Rear Part Number: 1L2Z-5230-AB
Product Specifications
- Other Name: Muffler And Pipe Assembly - Rear; Exhaust Muffler; Exhaust Pipe
- Position: Rear
Fits the following Mercury Models:
- Mountaineer | 2003-2004 | Base, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
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Mercury Muffler, Rear Part Number: 1L2Z-5230-BA
Product Specifications
- Other Name: Muffler Assembly - Centre; Exhaust Muffler; Direct-Fit Exhaust; Exhaust System Kit; Muffler Assembly - Centre And Rear
- Position: Rear
Fits the following Mercury Models:
- Mountaineer | 2001 | Base | 6 Cyl 4.0 L GAS
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Mercury Muffler & Pipe, Rear Part Number: 1L2Z-5230-BB
Product Specifications
- Other Name: Muffler And Pipe Assembly; Exhaust Muffler; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe; Muffler; Muffler And Pipe Assembly - Rear
- Manufacturer Note: Muffler asy.
- Position: Rear
Fits the following Mercury Models:
- Mountaineer | 2002-2005 | Base, Convenience, Luxury, Premier | 8 Cyl 4.6 L GAS
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Mercury Muffler, Rear Part Number: 1L5Z-5230-AE
Product Specifications
- Other Name: Muffler Assembly - Centre; Exhaust Muffler; Muffler Assembly - Centre And Rear
- Position: Rear
Fits the following Mercury Models:
- Mountaineer | 2001 | Base | 6 Cyl 4.0 L GAS
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Mercury Muffler & Pipe, Rear Part Number: 4L2Z-5230-AB
Product Specifications
- Other Name: Muffler And Pipe Assembly; Exhaust Muffler; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe; Muffler; Muffler And Pipe Assembly - Rear
- Position: Rear
Fits the following Mercury Models:
- Mountaineer | 2004-2005 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
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Mercury Resonator W/Pipe Part Number: 5E6Z-5A212-AA
Product Specifications
- Other Name: Silencer Assembly; Direct-Fit Exhaust System Kit; Resonator and Pipe Assembly; Muffler
Fits the following Mercury Models:
- Mariner | 2005-2008 | Base, Luxury, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Resonator W/Pipe Part Number: 5E6Z-5A212-BA
Product Specifications
- Other Name: Silencer Assembly; Exhaust Pipe; Resonator; Muffler
Fits the following Mercury Models:
- Mariner | 2005-2008 | Base, Convenience, Hybrid | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS
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Mercury Muffler & Pipe, Rear Part Number: 6E5Z-5230-AA
Product Specifications
- Other Name: Muffler Assembly - Centre And Rear; Direct-Fit Exhaust System Kit.; Muffler
- Position: Rear
Fits the following Mercury Models:
- Milan | 2006-2009 | Base, Premier | 4 Cyl 2.3 L GAS
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Mercury Muffler & Pipe, Rear Part Number: 6E5Z-5230-BA
Product Specifications
- Other Name: Muffler Assembly - Centre And Rear; Direct-Fit Exhaust System Kit; Y Pipe; Exhaust Pipe; Muffler
- Position: Rear
Fits the following Mercury Models:
- Milan | 2006-2009 | Base, Premier | 6 Cyl 3.0 L GAS
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Mercury Muffler & Pipe, Rear Part Number: 6F2Z-5230-AB
Product Specifications
- Other Name: Muffler And Pipe Assembly; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Muffler; Exhaust Pipe; Muffler; Muffler And Pipe Assembly - Rear
- Position: Rear
Fits the following Mercury Models:
- Monterey | 2004-2007 | Base, Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS

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Mercury Muffler Parts and Q&A

Muffler, Front Passenger Side
6W7Z-5230-BB
Q: How to Properly Service and Repair a Muffler and Tail Pipe on Mercury Grand Marquis?
A: To service muffler and tail pipe, keep the vehicle in neutral and also on a hoist. Switch off air suspension system. Unclamp, remove nuts and clamp and tighten to 45 Nm on reinstallation. Separate components with an exhaust cutter, check and replace isolators as required and fit new fasteners without lubrication.
Muffler, Front
5L8Z-5230-BA
Q: How to Maintain the Muffler on a Mercury Mariner?
A: To service the muffler, ensure the vehicle is in neutral on a hoist. Replace the catalytic converter and resonator nuts, tightening to 47 Nm (35 ft. lbs.). Remove the exhaust hanger and muffler as a single assembly, then reinstall, using new gaskets and avoiding oil-based lubricants on insulators.