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Shopping for Toyota-Highlander
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Toyota Highlander Catalytic Converter

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Front Catalytic ConverterFront Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT247
4.4268 Reviews
$160.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
641238, 674-863, 16392, 40373
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Rear Catalytic Converter
A-Premium®
1-PC Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT422
$227.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
52398, 174200A270, 174200P070, 174200P150, 1742020350, 1742031180
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Front Right Catalytic Converter with Exhaust Manifold
A-Premium®
1-PC Catalytic Converter Front Right Passenger Side Fit Federal Emissions A-Premium APCCT252
4.4268 Reviews
$199.99
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: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionFront Right Passenger Side
ColorNatural
Part interchange
641299, 674-133, 41029, 171400P080, 171400P210
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Front Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT730
$315.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
641414, 16364, 40930, 25051-28290
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Front Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT493
$291.99
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: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
642048, 41067
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Rear Catalytic Converter
A-Premium®
1-PC Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT343
$357.99
Quantity Less than 4
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
642990
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Catalytic Converter
A-Premium®
1-PC Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT666
$314.99
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: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionExhaust
ColorNatural
Part interchange
641298, 16624, 674-965
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Catalytic Converter
A-Premium®
1-PC Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT240
$329.99
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: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionExhaust
ColorNatural
Part interchange
641174, 40761
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Front Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT596
4.4268 Reviews
$262.99
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: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
644141, EC41247, 41247
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Rear Catalytic Converter
A-Premium®
1-PC Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT742
$278.99
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: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
642817, 16121, 18104
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2 Pcs Front & Rear Catalytic Converter
A-Premium®
2-PC Catalytic Converter Front & Rear Fit Federal Emissions A-Premium APCCT597
$522.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota Highlander
Item LocatedUnited States
Quantity2
Installation PositionFront & Rear
ColorNatural
Part interchange
644141, EC41247, 41247, 644142, EC41248, 41248
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Front Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT530
$232.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
641173, 40470, 16191
Show less
Front Left Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Left Driver Side Fit Federal Emissions A-Premium APCCT571
$177.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionFront Left Driver Side
ColorNatural
Part interchange
641297
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Front Left Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Left Driver Side Fit Federal Emissions A-Premium APCCT733
$284.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionFront Left Driver Side
ColorNatural
Part interchange
641598, 16950, 674-322, 41333
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Catalytic Converter with Integrated Exhaust Manifold
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT168
$337.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
674-984, 674984, 16435, 2505128090
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Rear Catalytic Converter
A-Premium®
1-PC Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT734
$224.99
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: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
642024, 54788
Show less
Rear Catalytic Converter
A-Premium®
1-PC Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT640
$210.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
645270
Show less
Rear Catalytic Converter
A-Premium®
1-PC Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT598
$218.99
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: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
644142, EC41248, 41248
Show less
2 Pcs Front Catalytic Converter
A-Premium®
2-PC Catalytic Converter Front Driver & Passenger Fit Federal Emissions A-Premium APCCT789
$583.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota Highlander
Item LocatedUnited States
Quantity2
Installation PositionFront Driver & Passenger
Part interchange
16948, 641598, 641599
ConditionNew
Show less
Front Passenger Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Right Passenger Side Fit Federal Emissions A-Premium APCCT788
$369.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota Highlander
Item LocatedUnited States
Quantity1
Installation PositionFront Right Passenger Side
Part interchange
16948, 641599
ConditionNew
Show less
Page 1 of 5

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!