Genuine Kia Optima Hybrid Radiator Cap

Cooling Radiator Cap

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6 Radiator Caps found

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Kia Optima Hybrid 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:
- 2016-2020 Kia Optima Hybrid | 2.0L - NU | Sedan - 4Door 5P
- 2011-2013 Kia Optima Hybrid | 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Hybrid 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 Hybrid | 2.0L - NU | Sedan - 4Door 5P
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Kia Optima Hybrid 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:
- 2011-2013 Kia Optima Hybrid | 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Hybrid 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:
- 2011-2013 Kia Optima Hybrid | 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Hybrid Cap Assembly-Radiator Re
Part Number: 254413M000
$8.47 MSRP: $11.48
You Save: $3.01 (27%)
Ships in 1-3 Business Days
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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 Hybrid | 2.4L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Hybrid Cap Assembly-Radiator
Part Number: 253304R000
$16.81 MSRP: $24.05
You Save: $7.24 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Reservoir Cap
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2011-2013 Kia Optima Hybrid | 2.4L - Theta 2 | Sedan - 4Door 5P

Kia Optima Hybrid Radiator Cap

The Kia Optima Hybrid Radiator Cap provides uniform pressure control, preventing boil over and maintaining engine temperatures at the sweet spot for fuel-saving engine operation. Built to exact factory specifications, this Radiator Cap works on every single Optima Hybrid built, regardless of whether you're driving the early lithium-polymer pioneer or the later facelift with cool LED tails, giving owners plug-and-play confidence when it comes to topping off the cooling circuit. Its spring-loaded valve holds pressure firmly, then dumps excess coolant down the overflow path before heat can spike, a smart reflex aimed at protecting cylinder head gaskets, sensors, and the high-efficiency electrical motor components that sit beside the gasoline block. The rugged stainless core of the part resists corrosion from modern long-life antifreeze and the thick rubber seal does not lose its elasticity after countless heat cycles, attributes that have given it a reputation for rock-solid reliability in Kia forums. Because the Kia Optima Hybrid Radiator Cap has a direct impact on the boiling point of the coolant, it also plays a part in enabling the smooth transition between electric cruising and petrol assist, which helps the Optima Hybrid achieve its famed low emissions and smooth acceleration. Safety gains are obvious too since if the pressure is stable, there is less chance of steam bursts when checking fluid after a spirited drive. Two factory pressure ratings are available for Kia models, one standard and one configured for models that route overflow to an external reservoir, but each Radiator Cap screws in without tools other than a hard twist, so maintaining access to the driveway is easy for new motorists. With durable construction, accurate calibration, and sure-fire compatibility among the entire Kia Optima Hybrid lineup, this small Radiator Cap component punches way above its size in terms of maintaining efficiency, longevity, and peace of mind. The Radiator Cap is essential for maintaining optimal engine performance.

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