Genuine Kia Optima Coolant Reservoir Cap

Coolant Overflow Reservoir Cap

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11 Coolant Reservoir Caps found

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Kia Optima Cap-Radiator Reservoir
Part Number: 2544126100
$1.61 MSRP: $2.30
You Save: $0.69 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Cap, Reservoir Cap
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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
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Kia Optima Cap Assembly-Radiator
Part Number: 253301P000
$16.90 MSRP: $24.18
You Save: $7.28 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Cap, Radiator Cap, Reservoir Cap
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2011-2020 Kia Optima | 1.6L - GAMMA, 2.0L - Theta 2, 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Cap-Radiator Reservoir
Part Number: 25441B1000
$9.58 MSRP: $13.70
You Save: $4.12 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Reservoir Cap
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2016-2020 Kia Optima | 1.6L - GAMMA, 2.0L - Theta 2, 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Cap Assembly-Radiator
Part Number: 253300W000
$17.80 MSRP: $25.47
You Save: $7.67 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Radiator Cap
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2011-2013 Kia Optima | 2.0L - Theta 2, 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Cap Assembly-Radiator
Part Number: 25330B1000
$19.11 MSRP: $27.33
You Save: $8.22 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Cap, Filler Cap, Radiator Cap, Reservoir Cap
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2016-2020 Kia Optima | 2.0L - Theta 2, 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Cap Assembly-Radiator
Part Number: 253303K000
$13.91 MSRP: $19.90
You Save: $5.99 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Radiator Cap
- Replaces: 2533039100, 2533038001
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2000-2013 Kia Optima | High Grade, Middle Grade | 2.4L, 2.4L - Theta 2, 2.4L - Theta FF, 2.5L, 2.7L, 2.7L - MU | 4 Door Sedan, Sedan - 4Door 5P
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Kia Optima Cap Assembly-Radiator Re
Part Number: 254403S000
$8.03 MSRP: $11.48
You Save: $3.45 (31%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Cap Assembly-Radiator Reservoir; Cap, Reservoir Cap
- Replaces: 254413M000
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
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 Cap-Radiator Reservoir
Part Number: 2544122020
$4.61 MSRP: $6.25
You Save: $1.64 (27%)
Ships in 1-3 Business Days
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Product Specifications
- Replaced by: 254413C020
- 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, 2.5L, 2.7L | 4 Door Sedan
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Kia Optima Cap Assembly-Radiator
Part Number: 2533039100
$14.69 MSRP: $19.90
You Save: $5.21 (27%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 253303K000
- 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, 2.5L, 2.7L | 4 Door Sedan
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Kia Optima Cap-Radiator Reservoir
Part Number: 254413C020
$4.37 MSRP: $6.25
You Save: $1.88 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Reservoir Cap
- Replaces: 2544122020
- 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, 2.5L, 2.7L | 4 Door Sedan
View related parts
Kia Optima Cap Assembly-Radiator Re
Part Number: 254413M000
$8.47 MSRP: $11.48
You Save: $3.01 (27%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Cap Assembly-Radiator Reservoir
- Replaced by: 254403S000
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2011-2013 Kia Optima | 2.0L - Theta 2, 2.4L - Theta 2 | Sedan - 4Door 5P

Kia Optima Coolant Reservoir Cap

The Kia Optima Coolant Reservoir Cap maintains engine temperatures and seals the cooling loop at the correct pressure to allow for smooth daily driving. Praised for reliable sealing, the Coolant Reservoir Cap provides an airtight seal against dust, air, and costly antifreeze leakage and directs overflow into the expansion tank. The Coolant Reservoir Cap is designed to use a calibrated spring and robust gasket that allow the fluid to return as the engine is cooled so that the radiator always remains full and corrosion never gets a foothold. From early second-generation Kia Optima sedans to the new turbo hybrids, owners enjoy quick and tool-free installation as dimensions are the same across model years. Whether your Kia is for daily commutes or weekend canyon runs, the Coolant Reservoir Cap fits right up, maintaining peak efficiency and saving the water pump from strain. By preventing the spillage of ethylene glycol on hot parts, the height of the Coolant Reservoir Cap increases safety by minimizing the risk of slick roads or a sudden stream of steam bursting out when the hood is raised. Drivers also appreciate how the Coolant Reservoir Cap is resistant to vibration with the metal or polymer body withstanding constant cycles of heat without warping. A clear pressure rating stamp allows anyone to look at the Coolant Reservoir Cap and see instantly that it is still within factory spec, which makes inspections quick and easy for users and families alike. Many Optima drivers notice more constant gauge readings and fewer top-offs after replacing a Coolant Reservoir Cap because the engine is no longer under pressure swings that rob power. Sitting beside the bold Kia badge on the radiator shroud is the cap that reminds every Optima owner that reliable performance starts with a simple twist. Backed by the same factory engineering that propels each Kia sedan forward, the Optima cooling loop remains balanced and efficient mile after mile.

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