What is the purpose of the Evaporative Emissions Control (EVAP) system and how to replace Canister Purge Valve and Vapor Canister?

The Evaporative Emissions Control (EVAP) system absorbs fuel vapors and releases them into the intake manifold. Also, the purge valve regulates vapor flow, and the canister closed valve controls the fresh air line. The PCM initiates the EVAP purge sequence, opening valves to draw vapors into the intake manifold. Any leaks or incorrect purge flow trigger the check Engine light.

Genuine Kia Optima Vapor Canister

Fuel Vapor Canister

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12 Vapor Canisters found

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Kia Optima Canister Assembly
Part Number: 314103Q600
$229.80 MSRP: $314.45
You Save: $84.65 (27%)

Add to Cart
Product Specifications
- Other Name: Canister, Vapor Canister
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2011-2015 Kia Optima | 2.0L - Theta 2, 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Canister Assembly
Part Number: 314103R500
$231.15 MSRP: $316.30
You Save: $85.15 (27%)

Add to Cart
Product Specifications
- Replaced by: 314013V500
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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Fits the following Vehicles:
- 2011-2015 Kia Optima | 2.0L - Theta 2, 2.4L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Canister Assembly
Part Number: 3142038100
$171.54 MSRP: $234.74
You Save: $63.20 (27%)

Add to Cart
Product Specifications
- Replaced by: 3142038100SJ
- 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, 2.5L, 2.7L | 4 Door Sedan
View related parts
Kia Optima Canister Assembly
Part Number: 314102G100
$221.18 MSRP: $302.65
You Save: $81.47 (27%)

Add to Cart
Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
View More
Fits the following Vehicles:
- 2006-2010 Kia Optima | High Grade, Middle Grade | 2.4L, 2.4L - Theta 2, 2.4L - Theta FF, 2.7L, 2.7L - MU | 4 Door Sedan, Sedan - 4Door 5P
View related parts
Kia Optima Canister Assembly
Part Number: 31420D5500
$242.19 MSRP: $336.93
You Save: $94.74 (29%)

Add to Cart
Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
View More
Fits the following Vehicles:
- 2016-2020 Kia Optima | 1.6L - GAMMA, 2.0L - Theta 2, 2.4L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Canister Assembly
Part Number: 314103Q500
$172.58 MSRP: $236.15
You Save: $63.57 (27%)

Add to Cart
Product Specifications
- Other Name: Canister, Vapor Canister
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
View More
Fits the following Vehicles:
- 2011-2015 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Canister Assembly-Fuel
Part Number: 314203Q500
$387.94 MSRP: $539.70
You Save: $151.76 (29%)

Add to Cart
Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
View More
Fits the following Vehicles:
- 2011-2015 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Canister Assembly
Part Number: 314203C500
$238.37 MSRP: $326.19
You Save: $87.82 (27%)

Add to Cart
Product Specifications
- Replaced by: 314203C500SJ
- 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, 2.5L, 2.7L | 4 Door Sedan
View related parts
Kia Optima Canister Assembly
Part Number: 31420D5600
$285.76 MSRP: $397.55
You Save: $111.79 (29%)

Add to Cart
Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
View More
Fits the following Vehicles:
- 2016-2018 Kia Optima | 1.6L - GAMMA, 2.0L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Canister Assembly-Fuel
Part Number: 314203Q600
$357.81 MSRP: $497.78
You Save: $139.97 (29%)

Add to Cart
Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
View More
Fits the following Vehicles:
- 2011-2015 Kia Optima | 2.0L - Theta 2, 2.4L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Canister Assembly
Part Number: 314102T600
$231.15 MSRP: $316.30
You Save: $85.15 (27%)

Add to Cart
Product Specifications
- Replaced by: 314013V500
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
View More
Fits the following Vehicles:
- 2011-2015 Kia Optima | 2.4L - Theta 2 | Sedan - 4Door 5P
View related parts
Kia Optima Canister Assembly
Part Number: 314202D502
Product Specifications
- Other Name: Vapor Canister
- 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, 2.5L, 2.7L | 4 Door Sedan

Kia Optima Vapor Canister Parts Questions & Answers

Canister Assembly
314102G100
Q: What is the purpose of the Evaporative Emissions Control (EVAP) system and how to replace Canister Purge Valve and Vapor Canister?
A: The Evaporative Emissions Control (EVAP) system absorbs fuel vapors and releases them into the intake manifold. Also, the purge valve regulates vapor flow, and the canister closed valve controls the fresh air line. The PCM initiates the EVAP purge sequence, opening valves to draw vapors into the intake manifold. Any leaks or incorrect purge flow trigger the check Engine light.