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Lexus GS300 Catalytic Converter

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Catalytic ConverterCatalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT181
$480.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Lexus GS300
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
16354, 674-642, 40486, 1714046030, 1714046080
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Right Catalytic Converter
A-Premium®
1-PC Catalytic Converter Right Passenger Side Fit Federal Emissions A-Premium APCCT668
$347.99
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: Lexus GS300
Item LocatedUnited States
Quantity1
Installation PositionRight Passenger Side
ColorNatural
Part interchange
641404, 674-641
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AP Emissions 608415 Catalytic Converter
AP Emissions
AP Emissions 608415 Catalytic Converter
$148.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Lexus GS300
Item LocatedUnited States
Quantity1
Part interchange
608415
Show less
AP Emissions 772574 Catalytic Converter
AP Emissions
AP Emissions 772574 Catalytic Converter
$429.99
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: Lexus GS300
Item LocatedUnited States
Quantity1
Part interchange
772574
Show less
AP Emissions 772105 Catalytic Converter
AP Emissions
AP Emissions 772105 Catalytic Converter
$423.99
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: Lexus GS300
Item LocatedUnited States
Quantity1
Part interchange
772105
Show less
AP Emissions 755005 Catalytic Converter
AP Emissions
AP Emissions 755005 Catalytic Converter
$283.99
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: Lexus GS300
Item LocatedUnited States
Quantity1
Part interchange
755005
Show less
AP Emissions 608705 Catalytic Converter
AP Emissions
AP Emissions 608705 Catalytic Converter
$196.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Lexus GS300
Item LocatedUnited States
Quantity1
Part interchange
608705
Show less
AP Emissions 641403 Catalytic Converter with Integrated Exhaust Manifold, Front Left Driver Side
AP Emissions
AP Emissions 641403 Catalytic Converter with Integrated Exhaust Manifold, Front Left Driver Side
$576.99
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: Lexus GS300
Item LocatedUnited States
Quantity1
Installation PositionFront Left
Part interchange
641403
Show less
AP Emissions 641404 Catalytic Converter with Integrated Exhaust Manifold, Front Right Passenger Side
AP Emissions
AP Emissions 641404 Catalytic Converter with Integrated Exhaust Manifold, Front Right Passenger Side
$573.99
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: Lexus GS300
Item LocatedUnited States
Quantity1
Installation PositionFront Right
Part interchange
641404
Show less
AP Emissions 755006 Catalytic Converter
AP Emissions
AP Emissions 755006 Catalytic Converter
$283.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Lexus GS300
Item LocatedUnited States
Quantity1
Part interchange
755006
Show less
AP Emissions 771084 Catalytic Converter with Integrated Exhaust Manifold, Front Left Driver Side
AP Emissions
AP Emissions 771084 Catalytic Converter with Integrated Exhaust Manifold, Front Left Driver Side
$965.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Lexus GS300
Item LocatedUnited States
Quantity1
Installation PositionFront Left
Part interchange
771084
Show less
AP Emissions 771085 Catalytic Converter with Integrated Exhaust Manifold, Front Right Passenger Side
AP Emissions
AP Emissions 771085 Catalytic Converter with Integrated Exhaust Manifold, Front Right Passenger Side
$944.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Lexus GS300
Item LocatedUnited States
Quantity1
Installation PositionFront Right
Part interchange
771085
Show less
Eastern Catalytic 83166 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 83166 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: Lexus GS300
Item LocatedUnited States
Quantity1
Part interchange
83166
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Eastern Catalytic 40590 Catalytic Converter, Rear Side
Eastern Catalytic
Eastern Catalytic 40590 Catalytic Converter, Rear Side
$437.99
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: Lexus GS300
Item LocatedUnited States
Quantity1
Installation PositionRear
Part interchange
40590
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Eastern Catalytic 40853 Catalytic Converter with Integrated Exhaust Manifold, Left Driver Side
Eastern Catalytic
Eastern Catalytic 40853 Catalytic Converter with Integrated Exhaust Manifold, Left Driver Side
$605.99
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: Lexus GS300
Item LocatedUnited States
Quantity1
Installation PositionLeft
Part interchange
40853
Show less
Eastern Catalytic 40854 Catalytic Converter with Integrated Exhaust Manifold, Right Passenger Side
Eastern Catalytic
Eastern Catalytic 40854 Catalytic Converter with Integrated Exhaust Manifold, Right Passenger Side
$602.99
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: Lexus GS300
Item LocatedUnited States
Quantity1
Installation PositionRight
Part interchange
40854
Show less
Eastern Catalytic 40486 Catalytic Converter with Integrated Exhaust Manifold, Front Side
Eastern Catalytic
Eastern Catalytic 40486 Catalytic Converter with Integrated Exhaust Manifold, Front Side
$942.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Lexus GS300
Item LocatedUnited States
Quantity1
Installation PositionFront
Part interchange
40486
Show less
MagnaFlow 457106 Catalytic Converter, Rear Side
MagnaFlow
MagnaFlow 457106 Catalytic Converter, Rear Side
$353.99
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: Lexus GS300
Item LocatedUnited States
Quantity1
Installation PositionRear
Part interchange
457106
Show less
MagnaFlow 338105 Catalytic Converter
MagnaFlow
MagnaFlow 338105 Catalytic Converter
$257.99
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: Lexus GS300
Item LocatedUnited States
Quantity1
Part interchange
338105
Show less
MagnaFlow 337105 Catalytic Converter
MagnaFlow
MagnaFlow 337105 Catalytic Converter
$283.99
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: Lexus GS300
Item LocatedUnited States
Quantity1
Part interchange
337105
Show less
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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!