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Shopping for 2003-Ford-Focus
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2003 Ford Focus Catalytic Converter

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Rear Catalytic ConverterRear Catalytic Converter
A-Premium®
1-PC Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT110
$224.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
53555, 3S4Z5E212AE, 5S4Z5E212CA, 5S4Z5E212DA, 5S4Z5E212DE, 6S4Z5E212AA, 6S4Z5E212BA
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AP Emissions 608264 Catalytic Converter
AP Emissions
AP Emissions 608264 Catalytic Converter
$149.99
Quantity Less than 3
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Part interchange
608264
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AP Emissions 608414 Catalytic Converter
AP Emissions
AP Emissions 608414 Catalytic Converter
$156.99
Only 1 item left in stock
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Part interchange
608414
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AP Emissions 772574 Catalytic Converter
AP Emissions
AP Emissions 772574 Catalytic Converter
$429.99
Only 1 item left in stock
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Part interchange
772574
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AP Emissions 771104 Catalytic Converter
AP Emissions
AP Emissions 771104 Catalytic Converter
$416.99
Quantity Less than 5
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Part interchange
771104
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AP Emissions 642269 Catalytic Converter, Rear Side
AP Emissions
AP Emissions 642269 Catalytic Converter, Rear Side
$243.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Installation PositionRear
Part interchange
642269
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Eastern Catalytic 70382 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 70382 Catalytic Converter
$126.99
Quantity Less than 4
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Part interchange
70382
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Eastern Catalytic 41022 Catalytic Converter, Front Side
Eastern Catalytic
Eastern Catalytic 41022 Catalytic Converter, Front Side
$641.99
Quantity Less than 2
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Installation PositionFront
Part interchange
41022
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Eastern Catalytic 30541 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 30541 Catalytic Converter
$490.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Part interchange
30541
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Eastern Catalytic 30397 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 30397 Catalytic Converter
$383.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Part interchange
30397
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Eastern Catalytic 30569 Catalytic Converter, Front Side
Eastern Catalytic
Eastern Catalytic 30569 Catalytic Converter, Front Side
$581.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Installation PositionFront
Part interchange
30569
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MagnaFlow 49231 Catalytic Converter
MagnaFlow
MagnaFlow 49231 Catalytic Converter
$508.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Part interchange
49231, YS4Z-5E212-BA, YS4Z-5E212-HA
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MagnaFlow 441404 Catalytic Converter
MagnaFlow
MagnaFlow 441404 Catalytic Converter
$543.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Part interchange
441404
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Catalytic Converter - Walker 15034
Walker
Walker 15034 Catalytic Converter, Exhaust
$167.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
15034, SC207, 602507, 6007, 602007, 70430, SC217, 6507
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Catalytic Converter - Walker 93238
Walker
Walker 93238 Catalytic Converter, Exhaust
$170.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
93238, 93166, 6606, 89516, 70955, 2576, 608240, 99106HM, 
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Catalytic Converter - Walker 93202
Walker
Walker 93202 Catalytic Converter, Exhaust
$152.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
93202, 82255, 92465, 99205HM, 602215, 92365, 82365, 92255, 
...View more
Show less
Catalytic Converter - Walker 93201
Walker
Walker 93201 Catalytic Converter, Exhaust
$152.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
93201, 602214, 70247, 82464, 99204HM, 70237, 92464, 82364, 
...View more
Show less
Catalytic Converter - Walker 53555
Walker
Walker 53555 Catalytic Converter
$235.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Part interchange
53555, 5S4Z5E212CA, 5S4Z5E212DA, 4338, 6S4Z5E212AA, 3S4Z5E212AE, 23972, 6S4Z5E212BA, 
...View more
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Catalytic Converter - Walker 15104
Walker
Walker 15104 Catalytic Converter, Exhaust
$269.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
15104, 641211, 92624, 82624
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Catalytic Converter - Walker 14640
Walker
Walker 14640 Catalytic Converter, Exhaust
$392.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Ford Focus
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
14640
Show less
Page 1 of 2

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!