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Shopping for 2011-Mercury-Grand Marquis
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Catalytic Converter

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2002-2011 Mercury Grand Marquis 1pc Catalytic Converter Right Passenger Side Fit Federal Emissions A-Premium APCCT310
A-Premium®Part # APCCT310
2002-2011 Mercury Grand Marquis 1pc Catalytic Converter Right Passenger Side Fit Federal Emissions A-Premium APCCT310
4.617 Reviews
$285.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Fits Mercury Grand Marquis: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Mercury Grand Marquis
Item LocatedCanada
Quantity1
Installation PositionRight Passenger Side
ColorNatural
Part interchange
54345, 642161, 30384, 19532, 4W1Z5E212A, 5W1Z5E212BA, 6W1Z5E212A, 6W1Z5E212B, 
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item #1012XDY8
Note
EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
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2003-2011 Mercury Grand Marquis 1pc Catalytic Converter Left Driver Side Fit Federal Emissions A-Premium APCCT254
A-Premium®Part # APCCT254
2003-2011 Mercury Grand Marquis 1pc Catalytic Converter Left Driver Side Fit Federal Emissions A-Premium APCCT254
4.617 Reviews
$345.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Fits Mercury Grand Marquis: 2003 2004 2005 2006 2007 2008 2009 2010 2011
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Mercury Grand Marquis
Item LocatedCanada
Quantity1
Installation PositionLeft Driver Side
ColorNatural
Part interchange
304-1302, 54346, 30383, 19531
item #10055QUG
Note
EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
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A catalytic converter, often referred to as a "cat," is an essential component of your engine's exhaust system. This device uses catalysts to transform harmful chemicals in the exhaust gases.

What are the signs of a bad catalytic converter?

  • Check engine light
    The dashboard warning light may illuminate, indicating potential issues.
  • Decreased engine performance
    Noticeable loss of power, acceleration, or overall engine performance.
  • Poor fuel economy
    A significant drop in fuel efficiency can occur as the converter fails.
  • Excessive exhaust emissions
    Increased emissions, including a strong sulfur or rotten egg smell.
  • Rattling noises
    Unusual rattling sounds from the exhaust system, indicating internal damage.
  • Overheating
    The engine may run hotter than normal due to restricted exhaust flow.
  • Failed emissions test
    Inability to pass emissions testing due to high pollution levels.

Shop for aftermarket catalytic converters on A-Premium.com

Premium.com offers a wide range of aftermarket catalytic converters for your vehicle. Refine your search by selecting from various dimensions, inlet types, and tube materials. A-Premium team is dedicated to helping you find a compatible catalytic converter for your car. Every item in our catalog is carefully selected by our team of experts, ensuring they undergo rigorous quality checks to endure the demanding conditions of your exhaust system. Shop now to find the best deal on your new catalytic converter!