What is the purpose of the catalytic converter on Kia Optima?

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

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

32 Catalytic Converters found

View related parts
Kia Optima Exhaust Manifold Catalytic Assembly, Right
Part Number: 285103E040
$1018.70 MSRP: $1495.88
You Save: $477.18 (32%)
Ships in 1-3 Business Days
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.
Fits the following Vehicles:
- 2006-2008 Kia Optima | High Grade, Middle Grade | 2.7L, 2.7L - MU | 4 Door Sedan, Sedan - 4Door 5P
View related parts
Kia Optima Exhaust Manifold Catalytic Assembly, Left
Part Number: 285103E830
$1032.03 MSRP: $1515.47
You Save: $483.44 (32%)
Ships in 1-3 Business Days
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.
Fits the following Vehicles:
- 2006-2008 Kia Optima | High Grade, Middle Grade | 2.7L, 2.7L - MU | 4 Door Sedan, Sedan - 4Door 5P
View related parts
Kia Optima Exhaust Manifold Catalytic Assembly
Part Number: 285102G240
$1857.37 MSRP: $2727.42
You Save: $870.05 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Catalytic Assembly-Exhaust; Exhaust Manifold
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2014-2015 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Exhaust Manifold Catalytic Assembly
Part Number: 285102G190
$3789.10 MSRP: $5564.02
You Save: $1774.92 (32%)
Ships in 1-3 Business Days
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.
Fits the following Vehicles:
- 2011-2015 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Exhaust Manifold Catalytic Assembly
Part Number: 285102GAV0
$1452.73 MSRP: $2133.24
You Save: $680.51 (32%)
Ships in 1-3 Business Days
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.
Fits the following Vehicles:
- 2016-2020 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Exhaust Manifold Catalytic Assembly
Part Number: 285102GAS0
$2849.81 MSRP: $4184.75
You Save: $1334.94 (32%)
Ships in 1-3 Business Days
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.
Fits the following Vehicles:
- 2016-2020 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Catalytic Converter Assembly
Part Number: 289503E140
$893.81 MSRP: $1312.50
You Save: $418.69 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly-Catalytic; Catalytic Converter, Converter
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2006-2008 Kia Optima | High Grade, Middle Grade | 2.7L, 2.7L - MU | 4 Door Sedan, Sedan - 4Door 5P
View related parts
Kia Optima Exhaust Manifold Assembly
Part Number: 285112G010
$190.65 MSRP: $272.75
You Save: $82.10 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Assembly-Exhaust; Exhaust Manifold
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2008-2010 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Catalytic Converter Assembly
Part Number: 289602G540
$2066.76 MSRP: $3034.89
You Save: $968.13 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly-Catalytic; Catalytic Converter, Converter
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2008-2010 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Exhaust Manifold Catalytic Assembly
Part Number: 285102G355
$948.55 MSRP: $1392.89
You Save: $444.34 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Catalytic Assembly-Exhaust; Catalytic Converter
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2016-2018 Kia Optima | 2.0L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Exhaust Manifold Catalytic Assembly
Part Number: 285102G400
$763.18 MSRP: $1091.82
You Save: $328.64 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Catalytic Assembly-Exhaust
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2011-2013 Kia Optima | 2.0L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Exhaust Manifold Catalytic Assembly, Right
Part Number: 285103E046
$625.28 MSRP: $918.18
You Save: $292.90 (32%)
Ships in 1-3 Business Days
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.
Fits the following Vehicles:
- 2006-2010 Kia Optima | 2.7L - MU | Sedan - 4Door 5P
View related parts
Kia Optima Exhaust Manifold Assembly, Left
Part Number: 2851037371
$728.67 MSRP: $1070.00
You Save: $341.33 (32%)
Ships in 1-3 Business Days
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.
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
$728.67 MSRP: $1070.00
You Save: $341.33 (32%)
Ships in 1-3 Business Days
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.
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
$775.77 MSRP: $1139.17
You Save: $363.40 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Case Assembly-Catalyst; Preconverter
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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
$875.85 MSRP: $1286.12
You Save: $410.27 (32%)
Ships in 1-3 Business Days
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.
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
$917.44 MSRP: $1312.50
You Save: $395.06 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly-Catalytic
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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
$938.25 MSRP: $1377.75
You Save: $439.50 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Case Assembly-Catalyst; Catalytic Converter, Preconverter
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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
$1279.93 MSRP: $1879.48
You Save: $599.55 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly-Catalytic; Catalytic Converter, Converter
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2006-2010 Kia Optima | 2.7L - MU | Sedan - 4Door 5P
View related parts
Kia Optima Exhaust Manifold Assembly
Part Number: 285112G000
$226.74 MSRP: $324.38
You Save: $97.64 (31%)
Product Specifications
- Other Name: Manifold Assembly-Exhaust; Exhaust Manifold
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2008-2010 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P

| Page 1 of 2 |Next >

1-20 of 32 Results

Kia Optima Catalytic Converter

The Catalytic Converter in Kia Optima vehicles is a vital and critical part of the emission system of a car; the function of the Catalytic Converter is to change dangerous gases like Carbon Monoxide, Hydrocarbons, and Oxides of Nitrogen into less dangerous products such as water, Carbon Dioxide, and Nitrogen. These are substances inside this device which help in the transformation of chemicals without the compound undergoing any transformation. Recent Optima models' catalytic converters generally contain a honeycomb structure coated with a layer of platinum, palladium as well as rhodium for the oxidation of CO and HC besides the reduction of NOx. Successful applications of the converters include the direct fit type as well as the universal one for the prime performance and low emissions. Due to its contribution in preventing or rather limiting the toxic gases from being emitted into the atmosphere while enhancing the quality of combustion in the engine, the Catalytic Converter is very instrumental in environmental conservation and meeting the emission requirements.

If you're in search of top-notch, reasonably priced OEM Kia Optima Catalytic Converter, then you've found the perfect spot. Our website boasts an extensive inventory of Kia Optima Catalytic Converter, all priced at the market's premier price. Rest assured, every genuine part we offer comes with a warranty straight from the manufacturer.

Kia Optima Catalytic Converter Parts Questions & Experts Answers

Exhaust Manifold Catalytic Assembly
2851025450
Q: What is the purpose of the catalytic converter on Kia Optima?
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.