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2003 Lexus ES300 Catalytic Converter

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AP Emissions 771018 Catalytic Converter with Integrated Exhaust Manifold, Front Left Driver SideAP Emissions 771018 Catalytic Converter with Integrated Exhaust Manifold, Front Left Driver Side
AP Emissions
AP Emissions 771018 Catalytic Converter with Integrated Exhaust Manifold, Front Left Driver Side
$424.99
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 Lexus ES300
Item LocatedUnited States
Quantity1
Installation PositionFront Left
Part interchange
771018
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AP Emissions 641525 Catalytic Converter with Integrated Exhaust Manifold
AP Emissions
AP Emissions 641525 Catalytic Converter with Integrated Exhaust Manifold
$480.99
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 Lexus ES300
Item LocatedUnited States
Quantity1
Part interchange
641525
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AP Emissions 809575 Catalytic Converter, Rear Side
AP Emissions
AP Emissions 809575 Catalytic Converter, Rear Side
$1,098.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Installation PositionRear
Part interchange
809575
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AP Emissions 840005 Catalytic Converter
AP Emissions
AP Emissions 840005 Catalytic Converter
$305.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Part interchange
840005
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AP Emissions 754383 Catalytic Converter, Rear Side
AP Emissions
AP Emissions 754383 Catalytic Converter, Rear Side
$479.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Installation PositionRear
Part interchange
754383
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AP Emissions 642259 Catalytic Converter, Center
AP Emissions
AP Emissions 642259 Catalytic Converter, Center
$478.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Installation PositionCenter
Part interchange
642259
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AP Emissions 771058 Catalytic Converter with Integrated Exhaust Manifold, Front Right Passenger Side
AP Emissions
AP Emissions 771058 Catalytic Converter with Integrated Exhaust Manifold, Front Right Passenger Side
$786.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Installation PositionFront Right
Part interchange
771058
Show less
AP Emissions 754579 Catalytic Converter with Integrated Exhaust Manifold
AP Emissions
AP Emissions 754579 Catalytic Converter with Integrated Exhaust Manifold
$686.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Part interchange
754579
Show less
AP Emissions 754578 Catalytic Converter with Integrated Exhaust Manifold
AP Emissions
AP Emissions 754578 Catalytic Converter with Integrated Exhaust Manifold
$742.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Part interchange
754578
Show less
AP Emissions 641307 Catalytic Converter with Integrated Exhaust Manifold, Front Right Passenger Side
AP Emissions
AP Emissions 641307 Catalytic Converter with Integrated Exhaust Manifold, Front Right Passenger Side
$493.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Installation PositionFront Right
Part interchange
641307
Show less
AP Emissions 641204 Catalytic Converter with Integrated Exhaust Manifold
AP Emissions
AP Emissions 641204 Catalytic Converter with Integrated Exhaust Manifold
$358.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Part interchange
641204
Show less
Eastern Catalytic 82724 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 82724 Catalytic Converter
$180.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Part interchange
82724
Show less
Eastern Catalytic 82725 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 82725 Catalytic Converter
$180.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Part interchange
82725
Show less
Eastern Catalytic 83164 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 83164 Catalytic Converter
$172.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Part interchange
83164
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Eastern Catalytic 70316 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 70316 Catalytic Converter
$141.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Part interchange
70316
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Eastern Catalytic 40782 Catalytic Converter, Rear Side
Eastern Catalytic
Eastern Catalytic 40782 Catalytic Converter, Rear Side
$413.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Installation PositionRear
Part interchange
40782
Show less
Eastern Catalytic 40361 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 40361 Catalytic Converter
$432.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Part interchange
40361
Show less
Eastern Catalytic 40391 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 40391 Catalytic Converter
$569.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Part interchange
40391
Show less
Eastern Catalytic 40564 Catalytic Converter with Integrated Exhaust Manifold, Front Left Driver Side
Eastern Catalytic
Eastern Catalytic 40564 Catalytic Converter with Integrated Exhaust Manifold, Front Left Driver Side
$375.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Installation PositionFront Left
Part interchange
40564
Show less
Eastern Catalytic 40663 Catalytic Converter with Integrated Exhaust Manifold, Front Left Driver Side
Eastern Catalytic
Eastern Catalytic 40663 Catalytic Converter with Integrated Exhaust Manifold, Front Left Driver Side
$503.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Lexus ES300
Item LocatedUnited States
Quantity1
Installation PositionFront Left
Part interchange
40663
Show less
Page 2 of 4

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!