What are the signs and symptoms of water pump failure on Kia Optima?

A failure in the water pump can cause serious engine damage due to overheating. Water pumps are equipped with weep or vent holes. If a failure occurs in the pump seal, coolant will leak from this hole. The water pumps on V6 models and 2006 and earlier four-cylinder models are located behind the timing belt covers. If you suspect water pump leakage, remove this cover. In most cases, it will be necessary to use a flashlight to find the hole in the water pump by looking through the space behind the pulley, just below the water pump shaft. A slight gray discoloration around the weep hole is normal, while dark brown stains indicate a problem. If the water pump shaft bearings fail, there may be a howling sound at the front of the engine while it is running. Bearing wear can be felt if the water pump pulley can be rocked up and down. Do not mistake drivebelt slippage, which causes a squealing sound, for water pump failure. This can occur on engines with adjustable drivebelts. Spray automotive drivebelt dressing on the belts to eliminate the belt as a possible cause of the noise.

Genuine Kia Optima Water Pump

H2O Pump

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23 Water Pumps found

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Kia Optima Pump Assembly-COOLENT
Part Number: 251002B700
$110.19 MSRP: $159.00
You Save: $48.81 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Assembly-Coolant; Water Pump
- Replaces: 252212B000, 251002B000
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2016-2018 Kia Optima | 1.6L - GAMMA | Sedan - 4Door 5P
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Kia Optima Pump Sub Assembly-COOLAN
Part Number: 251102G500
$119.15 MSRP: $173.44
You Save: $54.29 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Sub Assembly-Coolant; Pump
- 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
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Kia Optima Pump Assembly-COOLENT
Part Number: 251002G400
$163.11 MSRP: $237.42
You Save: $74.31 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Coolant; Water Pump, Water Pump Assembly
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2011-2015 Kia Optima | 2.0L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Pump Sub Assembly-COOLAN
Part Number: 251102G510
$119.15 MSRP: $173.44
You Save: $54.29 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Sub Assembly-Coolant; Front Housing, Pump
- 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 Pump Sub Assembly-COOLAN
Part Number: 251102G400
$119.15 MSRP: $173.44
You Save: $54.29 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Sub Assembly-Coolant; Front Housing, Pump
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2011-2015 Kia Optima | 2.0L - Theta 2 | Sedan - 4Door 5P
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Kia Optima Pump Sub Assembly-COOLAN
Part Number: 2511025002
$119.00 MSRP: $173.22
You Save: $54.22 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Sub Assembly-Coolant; Water Pump
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2006-2010 Kia Optima | 2.4L - Theta 2, 2.4L - Theta FF | Sedan - 4Door 5P
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Kia Optima Pump Assembly-COOLENT
Part Number: 251002G200
$128.43 MSRP: $186.95
You Save: $58.52 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Coolant; Water Pump, Water Pump Assembly
- Replaces: 251002G650
- 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
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Kia Optima Pump Assembly-Water
Part Number: 2510025002
$123.51 MSRP: $179.79
You Save: $56.28 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Coolant; Water Pump, Water Pump Assembly
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2006-2008 Kia Optima | High Grade, Middle Grade | 2.4L, 2.4L - Theta FF | 4 Door Sedan, Sedan - 4Door 5P
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Kia Optima Pump Assembly-Water
Part Number: 251002G000
$157.86 MSRP: $229.78
You Save: $71.92 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Coolant; Water Pump, Water Pump Assembly
- 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
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Kia Optima Pump Assembly-Coolant
Part Number: 251002B710
$130.08 MSRP: $189.35
You Save: $59.27 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Water Pump
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2019-2020 Kia Optima | 1.6L - GAMMA | Sedan - 4Door 5P
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Kia Optima Pump Assembly-COOLENT
Part Number: 251002G510
$122.01 MSRP: $177.60
You Save: $55.59 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Coolant; Water Pump, Water Pump Assembly
- Replaces: 251002G500
- 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
View related parts
Kia Optima Pump Assembly-Coolant
Part Number: 2510037201
$180.78 MSRP: $251.09
You Save: $70.31 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 2510037202
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2000-2005 Kia Optima | High Grade, Middle Grade | 2.7L | 4 Door Sedan
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Kia Optima Pump Assembly-Water
Part Number: 251003E001
$176.31 MSRP: $256.64
You Save: $80.33 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Coolant; Water Pump, Water Pump Assembly
- 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 Pump Assembly-COOLENT
Part Number: 251002G500
$127.87 MSRP: $177.60
You Save: $49.73 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Coolant
- Replaced by: 251002G510
- 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 Pump Assembly-COOLANT
Part Number: 251002GTB0
$179.39 MSRP: $249.15
You Save: $69.76 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 251002GTA0
- 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
View related parts
Kia Optima Pump Assembly-Water
Part Number: 2510038200
$115.43 MSRP: $166.57
You Save: $51.14 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Coolant; Water Pump
- 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 Pump Assembly-Coolant
Part Number: 2510037102
$180.78 MSRP: $251.09
You Save: $70.31 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 2510037202
- 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 | 4 Door Sedan
View related parts
Kia Optima Pump Assembly-Coolant
Part Number: 2510037200
$180.78 MSRP: $251.09
You Save: $70.31 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 2510037202
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2000-2005 Kia Optima | High Grade, Middle Grade | 2.7L | 4 Door Sedan
View related parts
Kia Optima Pump Assembly-Coolant
Part Number: 2510025100
$172.64 MSRP: $239.79
You Save: $67.15 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 2510025100SJ
- 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 Pump Assembly-Water
Part Number: 251003E000
$177.14 MSRP: $246.04
You Save: $68.90 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Coolant; Water Pump
- Replaced by: 251003E000SJ
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2006 Kia Optima | High Grade, Middle Grade | 2.7L | 4 Door Sedan

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1-20 of 23 Results

Kia Optima Water Pump

Kia Optima Water Pump is one of the vital parts in Kia vehicles that shows how reliable and powerful vehicles are. Functioning as part of the cooling system mechanism in the Kia Optima the Water Pump facilitates the passage of coolant from the radiator to the hot engine hence optimizing performance and temperature control. Specifically, this Water Pump works for different Kia models to guarantee ride performance for the cars of different generations. Constructed mostly of sturdy aluminum, Kia Optima Water Pump incorporates the shaft with the impeller which helps to circulate the coolant and fend off the risks of overheating and the consequent harm to the engine. Signal of failing Water Pumps, for example, leaks or funny sounds could lead to poor performance of the car hence the need for maintenance. Especially, the Water Pump includes the normal version and the electric control version with adjustable coolant circulation and obviously lower power absorption, which has gradually become the trend in current automobile industry. This is especially beneficial in instances when a car has high-performance engines; the Water Pump is reliable in providing great coolant flow to the engine efficiently. In general, the Kia Optima Water Pump occupies a special place in Optima auto market as one of the most important elements for car optimization, compatibility, and chauffeur insurance.

If you're in search of top-notch, reasonably priced OEM Kia Optima Water Pump, then you've found the perfect spot. Our website boasts an extensive inventory of Kia Optima Water Pump, 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 Water Pump Parts Questions & Experts Answers

Pump Assembly-Water
2510025002
Q: What are the signs and symptoms of water pump failure on Kia Optima?
A:
A failure in the water pump can cause serious engine damage due to overheating. Water pumps are equipped with weep or vent holes. If a failure occurs in the pump seal, coolant will leak from this hole. The water pumps on V6 models and 2006 and earlier four-cylinder models are located behind the timing belt covers. If you suspect water pump leakage, remove this cover. In most cases, it will be necessary to use a flashlight to find the hole in the water pump by looking through the space behind the pulley, just below the water pump shaft. A slight gray discoloration around the weep hole is normal, while dark brown stains indicate a problem. If the water pump shaft bearings fail, there may be a howling sound at the front of the engine while it is running. Bearing wear can be felt if the water pump pulley can be rocked up and down. Do not mistake drivebelt slippage, which causes a squealing sound, for water pump failure. This can occur on engines with adjustable drivebelts. Spray automotive drivebelt dressing on the belts to eliminate the belt as a possible cause of the noise.