What is the purpose of the catalytic converter?

The catalytic converter is an emission control device that reduces pollutants in exhaust gas. Also, it consists of an oxidation catalyst to reduce hydrocarbon and carbon monoxide levels, and a reduction catalyst to lower nitrogen oxide levels. If malfunctioning, the downstream sensor will trigger a Diagnostic Trouble Code and turn on the Malfunction Indicator Light. A vacuum gauge can check for restrictions.

Genuine Kia Optima Catalytic Converter

Cat. Converter

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32 Catalytic Converters found

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Kia Optima Exhaust Manifold Catalytic Assembly, Right
Part Number: 285103E040
$641.31 MSRP: $905.80
You Save: $264.49 (30%)

Add to Cart
Product Specifications
- Other Name: Manifold Catalytic Assembly-Exhaust,Rh; Exhaust Manifold, Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2006-2008 Kia Optima | High Grade, Middle Grade | 2.7L, 2.7L - MU | 4 Door Sedan, Sedan - 4Door 5P
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Kia Optima Exhaust Manifold Catalytic Assembly, Left
Part Number: 285103E830
$1072.95 MSRP: $1515.47
You Save: $442.52 (30%)

Add to Cart
Product Specifications
- Other Name: Manifold Catalytic Assembly-Exhaust,Lh; Exhaust Manifold, Manifold
- Position: Driver Side
- Replaces: 285003E835
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2006-2008 Kia Optima | High Grade, Middle Grade | 2.7L, 2.7L - MU | 4 Door Sedan, Sedan - 4Door 5P
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Kia Optima Exhaust Manifold Catalytic Assembly
Part Number: 285102G240
$1931.01 MSRP: $2727.42
You Save: $796.41 (30%)

Add to Cart
Product Specifications
- Other Name: Manifold Catalytic Assembly-Exhaust; Exhaust Manifold
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2014-2015 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Exhaust Manifold Catalytic Assembly
Part Number: 285102G190
$3939.32 MSRP: $5564.02
You Save: $1624.70 (30%)

Add to Cart
Product Specifications
- Other Name: Manifold Catalytic Assembly-Exhaust; Exhaust Manifold
- Replaces: 285102G170
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2011-2015 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Exhaust Manifold Catalytic Assembly
Part Number: 285102GAV0
$1877.36 MSRP: $2651.63
You Save: $774.27 (30%)

Add to Cart
Product Specifications
- Other Name: Manifold Catalytic Assembly-Exhaust; Catalytic Converter, Manifold With Converter
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2016-2020 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Exhaust Manifold Catalytic Assembly
Part Number: 285102GAS0
$3429.00 MSRP: $4843.22
You Save: $1414.22 (30%)

Add to Cart
Product Specifications
- Other Name: Manifold Catalytic Assembly-Exhaust; Manifold With Converter
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2016-2020 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Catalytic Converter Assembly
Part Number: 289503E140
$929.25 MSRP: $1312.50
You Save: $383.25 (30%)

Add to Cart
Product Specifications
- Other Name: Converter Assembly-Catalytic; Catalytic Converter, Converter
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2006-2008 Kia Optima | High Grade, Middle Grade | 2.7L, 2.7L - MU | 4 Door Sedan, Sedan - 4Door 5P
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Kia Optima Exhaust Manifold Assembly
Part Number: 285112G010
$199.33 MSRP: $272.75
You Save: $73.42 (27%)

Add to Cart
Product Specifications
- Other Name: Manifold Assembly-Exhaust; Exhaust Manifold
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2008-2010 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Catalytic Converter Assembly
Part Number: 289602G540
$2148.70 MSRP: $3034.89
You Save: $886.19 (30%)

Add to Cart
Product Specifications
- Other Name: Converter Assembly-Catalytic; Catalytic Converter, Converter
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2008-2010 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Exhaust Manifold Assembly
Part Number: 285112G000
$237.06 MSRP: $324.38
You Save: $87.32 (27%)

Add to Cart
Product Specifications
- Other Name: Manifold Assembly-Exhaust; Exhaust Manifold
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2008-2010 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Exhaust Manifold Catalytic Assembly
Part Number: 285102G355
$1314.87 MSRP: $1857.17
You Save: $542.30 (30%)

Add to Cart
Product Specifications
- Other Name: Manifold Catalytic Assembly-Exhaust; Catalytic Converter
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2016-2018 Kia Optima | 2.0L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Exhaust Manifold Catalytic Assembly
Part Number: 285102G400
$773.01 MSRP: $1091.82
You Save: $318.81 (30%)

Add to Cart
Product Specifications
- Other Name: Manifold Catalytic Assembly-Exhaust
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2011-2013 Kia Optima | 2.0L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Exhaust Manifold Catalytic Assembly, Right
Part Number: 285103E046
$650.07 MSRP: $918.18
You Save: $268.11 (30%)

Add to Cart
Product Specifications
- Other Name: Manifold Catalytic Assembly-Exhaust,Rh; Exhaust Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
View More
Fits the following Vehicles:
- 2006-2010 Kia Optima | 2.7L - MU | Sedan - 4Door 5P
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Kia Optima Exhaust Manifold Assembly, Left
Part Number: 2851037371
$757.56 MSRP: $1070.00
You Save: $312.44 (30%)

Add to Cart
Product Specifications
- Other Name: Manifold Assembly-Exhaust,Lh; Exhaust Manifold, Manifold
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
View More
Fits the following Vehicles:
- 2000-2005 Kia Optima | High Grade, Middle Grade | 2.5L, 2.7L | 4 Door Sedan
View related parts
Kia Optima Exhaust Manifold Assembly, Right
Part Number: 2851037381
$757.56 MSRP: $1070.00
You Save: $312.44 (30%)

Add to Cart
Product Specifications
- Other Name: Manifold Assembly-Exhaust,Rh; Exhaust Manifold, Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
View More
Fits the following Vehicles:
- 2000-2005 Kia Optima | High Grade, Middle Grade | 2.5L, 2.7L | 4 Door Sedan
View related parts
Kia Optima Catalytic Converter
Part Number: 2853038760
$806.53 MSRP: $1139.17
You Save: $332.64 (30%)

Add to Cart
Product Specifications
- Other Name: Case Assembly-Catalyst; Preconverter
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2000-2005 Kia Optima | High Grade, Middle Grade | 2.4L | 4 Door Sedan
View related parts
Kia Optima Exhaust Manifold Catalytic Assembly, Left
Part Number: 285103E836
$910.57 MSRP: $1286.12
You Save: $375.55 (30%)

Add to Cart
Product Specifications
- Other Name: Manifold Catalytic Assembly-Exhaust,Lh; Exhaust Manifold
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
View More
Fits the following Vehicles:
- 2006-2010 Kia Optima | 2.7L - MU | Sedan - 4Door 5P
View related parts
Kia Optima Catalytic Converter Assembly
Part Number: 289503E190
$929.25 MSRP: $1312.50
You Save: $383.25 (30%)

Add to Cart
Product Specifications
- Other Name: Converter Assembly-Catalytic
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
View More
Fits the following Vehicles:
- 2008-2010 Kia Optima | 2.7L - MU | Sedan - 4Door 5P
View related parts
Kia Optima Catalyst Case Assembly
Part Number: 2853038770
$975.45 MSRP: $1377.75
You Save: $402.30 (30%)

Add to Cart
Product Specifications
- Other Name: Case Assembly-Catalyst; Catalytic Converter, Preconverter
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
View More
Fits the following Vehicles:
- 2000-2005 Kia Optima | High Grade, Middle Grade | 2.4L | 4 Door Sedan
View related parts
Kia Optima Catalytic Converter Assembly
Part Number: 289503E180
$1330.67 MSRP: $1879.48
You Save: $548.81 (30%)

Add to Cart
Product Specifications
- Other Name: Converter Assembly-Catalytic; Catalytic Converter, Converter
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
View More
Fits the following Vehicles:
- 2006-2010 Kia Optima | 2.7L - MU | Sedan - 4Door 5P

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1-20 of 32 Results

Kia Optima Catalytic Converter Parts Questions & Answers

Exhaust Manifold Catalytic Assembly
2851025450
Q: What is the purpose of the catalytic converter?
A: The catalytic converter is an emission control device that reduces pollutants in exhaust gas. Also, it consists of an oxidation catalyst to reduce hydrocarbon and carbon monoxide levels, and a reduction catalyst to lower nitrogen oxide levels. If malfunctioning, the downstream sensor will trigger a Diagnostic Trouble Code and turn on the Malfunction Indicator Light. A vacuum gauge can check for restrictions.

Related Kia Optima Parts

About Kia Optima Catalytic Converter

Quality of automotive experience needs good performance car parts. So for keeping your Kia vehicle has comfortable experience, the genuine Kia Optima Catalytic Converters are essential. As a driver, when your vehicle does not work properly you have to know what went wrong. And if you want replace your Kia Optima Catalytic Converter, the online catalog we provide will get you through the ordering process safely and securely. And all genuine Kia Optima Catalytic Converters from us are shipped directly from authorized Kia Dealer.