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2018 Buick Regal Sportback
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Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
2018 Buick Regal Sportback

Water Pumps

Does your vehicle frequently overheat? You may have a bad water pump. Don’t ignore the problem because overheating can cause severe engine damage and lead to expensive repairs. Get a high-quality replacement water pump here at CarParts.com. Our water pumps are made by the most trusted manufacturers in the industry, so you can get that peace of mind that comes with purchasing a durable product. Choose from heavy-duty new or remanufactured water pumps for virtually any vehicle model. Take a look at our selection today and grab the best deal on a replacement water pump that fits your application.
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Showing 1 - 14 of 14 results
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Water Pump, 4 Cyl., 2.0L Engine, Pump Only
DriveMotive
Water Pump, 4 Cyl., 2.0L Engine, Pump Only
Part Number: RC31350004
Guaranteed to Fit
$41.75
Vehicle Fitment
  • 2018 Buick Regal Sportback Base 4 Cyl 2.0L Pump Only
  • 2018 Buick Regal Sportback Preferred II 4 Cyl 2.0L Pump Only
  • 2018 Buick Regal Sportback Preferred 4 Cyl 2.0L Pump Only
  • 2018 Buick Regal Sportback Essence 4 Cyl 2.0L Pump Only
Product Details
Condition : NewQuantity Sold : Sold individuallyRecommended Use : OE ReplacementPulley Included : With PulleyGasket Included : With GasketProduct Fit : Direct FitReplaces OE Number : 251780, 251781, 513178, 1302090, 12650240, 12651600, 12653567, 12653661, 12657088, 12657197, 12657198, 12663909, 12663910, 43071BH, 43088BHWT, N302090, US8102Interchange Part Number : 1302090, 251780, 251781, 513178, 1302090, 12650240, 12651600, 12653567, 12653661, 12657088, 12657197, 12657198, 12663909, 12663910, 43071BH, 43088BHWT, N302090, US8102Warranty : 1-year DriveMotive unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Returns Policy : 30-Day Return Policy
Light-Duty Series Water Pump, New, 4 Cyl., 2.0L Engine, (3) Outlets, Plastic Impeller Material, Main -
Gates®
Light-Duty Series Water Pump, New, 4 Cyl., 2.0L Engine, (3) Outlets, Plastic Impeller Material, Main -
Part Number: GAT43088BHWT
Guaranteed to Fit
$143.99
Vehicle Fitment
  • 2018 Buick Regal Sportback Base 4 Cyl 2.0L Main
  • 2018 Buick Regal Sportback Essence 4 Cyl 2.0L Main
  • 2018 Buick Regal Sportback Preferred II 4 Cyl 2.0L Main
  • 2018 Buick Regal Sportback Preferred 4 Cyl 2.0L Main
Product Details
Notes : (3) Outlets; Plastic Impeller Material; Includes Back Housing, Thermostat and Thermostat HousingMaterial : Cast AluminumCondition : NewQuantity Sold : Sold individuallyRecommended Use : OE ReplacementPulley Included : With PulleyGasket Included : With GasketProduct Fit : Direct FitWarranty : Lifetime Gates limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Light-Duty Series
OE Replacement Series Water Pump, New, 4 Cyl., 2.0L Engine, Cast Iron Impeller Material, Accessory Belt Drive Style, GAS, Main -
Gates®
OE Replacement Series Water Pump, New, 4 Cyl., 2.0L Engine, Cast Iron Impeller Material, Accessory Belt Drive Style, GAS, Main -
Part Number: GAT43071
Guaranteed to Fit
$78.99
Vehicle Fitment
  • 2018 Buick Regal Sportback Base 4 Cyl 2.0L GAS, Main
  • 2018 Buick Regal Sportback Essence 4 Cyl 2.0L GAS, Main
  • 2018 Buick Regal Sportback Preferred II 4 Cyl 2.0L GAS, Main
  • 2018 Buick Regal Sportback Preferred 4 Cyl 2.0L GAS, Main
Product Details
Notes : Cast Iron Impeller Material; Standard Impeller Rotation; Accessory Belt Drive StyleMaterial : Cast AluminumCondition : NewQuantity Sold : Sold individuallyRecommended Use : OE ReplacementPulley Included : With PulleyGasket Included : With GasketProduct Fit : Direct FitWarranty : Lifetime Gates limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OE Replacement Series
OE Replacement Series Water Pump, New, 4 Cyl., 2.0L Engine, without Back Housing -
Dayco®
OE Replacement Series Water Pump, New, 4 Cyl., 2.0L Engine, without Back Housing -
Part Number: DYDP1912
Guaranteed to Fit
$93.99
Vehicle Fitment
  • 2018 Buick Regal Sportback Preferred II 4 Cyl 2.0L without Back Housing
  • 2018 Buick Regal Sportback Preferred 4 Cyl 2.0L without Back Housing
  • 2018 Buick Regal Sportback Essence 4 Cyl 2.0L without Back Housing
  • 2018 Buick Regal Sportback Base 4 Cyl 2.0L without Back Housing
Product Details
Notes : (6) Impeller Vane Quantity; (4) Mounting Hole Quantity; Aluminum Housing Material; Standard Impeller RotationCondition : NewQuantity Sold : Sold individuallyRecommended Use : OE ReplacementProduct Fit : Direct FitIncludes : O-ringWarranty : 125,000-mile Dayco limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OE Replacement Series
GMB OE Replacement Water Pump, New, 4 Cyl., 2.0L Engine, Pump Only -
GMB®
GMB OE Replacement Water Pump, New, 4 Cyl., 2.0L Engine, Pump Only -
Part Number: GMB1302090
Guaranteed to Fit
$78.99
Vehicle Fitment
  • 2018 Buick Regal Sportback Base 4 Cyl 2.0L Pump Only
  • 2018 Buick Regal Sportback Preferred II 4 Cyl 2.0L Pump Only
  • 2018 Buick Regal Sportback Preferred 4 Cyl 2.0L Pump Only
  • 2018 Buick Regal Sportback Essence 4 Cyl 2.0L Pump Only
Product Details
Condition : NewQuantity Sold : Sold individuallyRecommended Use : OE ReplacementPulley Included : With PulleyGasket Included : With GasketProduct Fit : Direct FitColor Finish : NaturalReplaces OE Number : 251780, 251781, 513178, 1302090, 12650240, 12651600, 12653567, 12653661, 12657088, 12657197, 12657198, 12663909, 12663910, 43071BH, 43088BHWT, N302090, US8102Interchange Part Number : RC31350004, 251780, 251781, 513178, 1302090, 12650240, 12651600, 12653567, 12653661, 12657088, 12657197, 12657198, 12663909, 12663910, 43071BH, 43088BHWT, N302090, US8102Warranty : 12-month or 12,000-mile GMB limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : GMB OE Replacement
Water Pump, New
AC Delco®
Water Pump, New
Part Number: AC2521038
Guaranteed to Fit
$102.49
Vehicle Fitment
  • 2018 Buick Regal Sportback GS 6 Cyl 3.6L
Product Details
Condition : NewQuantity Sold : Sold individuallyRecommended Use : OE ReplacementProduct Fit : Direct FitWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Water Pump, New
Airtex®
Water Pump, New
Part Number: AFAW6750
Guaranteed to Fit
$109.49
Vehicle Fitment
  • 2018 Buick Regal Sportback Base 4 Cyl 2.0L
  • 2018 Buick Regal Sportback Preferred II 4 Cyl 2.0L
  • 2018 Buick Regal Sportback Preferred 4 Cyl 2.0L
  • 2018 Buick Regal Sportback Essence 4 Cyl 2.0L
Product Details
Condition : NewQuantity Sold : Sold individuallyRecommended Use : OE ReplacementProduct Fit : Direct FitWarranty : Lifetime Airtex limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Professional Series Water Pump, New, 4 Cyl., 2.0L Engine -
AC Delco®
Professional Series Water Pump, New, 4 Cyl., 2.0L Engine -
Part Number: AC2521009
Guaranteed to Fit
$88.99
Vehicle Fitment
  • 2018 Buick Regal Sportback Base 4 Cyl 2.0L
  • 2018 Buick Regal Sportback Essence 4 Cyl 2.0L
  • 2018 Buick Regal Sportback Preferred II 4 Cyl 2.0L
  • 2018 Buick Regal Sportback Preferred 4 Cyl 2.0L
Product Details
Condition : NewQuantity Sold : Sold individuallyRecommended Use : OE ReplacementProduct Fit : Direct FitWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional Series
GM Original Equipment Series Water Pump, New, 4 Cyl., 2.0L Engine
AC Delco®
GM Original Equipment Series Water Pump, New, 4 Cyl., 2.0L Engine
Part Number: AC251781
Guaranteed to Fit
$235.49
Vehicle Fitment
  • 2018 Buick Regal Sportback Base 4 Cyl 2.0L FWD, If Repl Thermostat, Order Housing And Not Water Pump Asm
  • 2018 Buick Regal Sportback Essence 4 Cyl 2.0L AWD, If Repl Thermostat, Order Housing And Not Water Pump Asm
  • 2018 Buick Regal Sportback Preferred 4 Cyl 2.0L FWD, If Repl Thermostat, Order Housing And Not Water Pump Asm
Product Details
Condition : NewQuantity Sold : Sold individuallyRecommended Use : OE ReplacementProduct Fit : Direct FitWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : GM Original Equipment Series
GM Original Equipment Series Water Pump, New, 6 Cyl., 3.6L Engine -
AC Delco®
GM Original Equipment Series Water Pump, New, 6 Cyl., 3.6L Engine -
Part Number: AC12707180
Guaranteed to Fit
$118.49
Vehicle Fitment
  • 2018 Buick Regal Sportback GS 6 Cyl 3.6L
Product Details
Condition : NewQuantity Sold : Sold individuallyRecommended Use : OE ReplacementProduct Fit : Direct FitWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : GM Original Equipment Series
Universal, Water Pump New
Holley®
Universal, Water Pump New
Part Number: H1922101
Universal Fit
$288.95
Product Details
Condition : NewQuantity Sold : Set of 2Recommended Use : Performance ReplacementProduct Fit : UniversalWarranty : 90-day Holley limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Specialty Part : Performance Part by JCW
Water Pump, New
Holley®
Water Pump, New
Part Number: H1922102
Universal Fit
$279.95
Product Details
Condition : NewQuantity Sold : Sold individuallyRecommended Use : Performance ReplacementProduct Fit : UniversalWarranty : 90-day Holley limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Specialty Part : Performance Part by JCW
Water Pump, New
Holley®
Water Pump, New
Part Number: H1997200
Universal Fit
$103.95
Product Details
Condition : NewQuantity Sold : Sold individuallyRecommended Use : Performance ReplacementProduct Fit : UniversalWarranty : 90-day Holley limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Specialty Part : Performance Part by JCW
Water Pump, New
Holley®
Water Pump, New
Part Number: H1997245
Universal Fit
$155.96
Product Details
Condition : NewQuantity Sold : Sold individuallyRecommended Use : Performance ReplacementProduct Fit : UniversalWarranty : 90-day Holley limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Deals : OverstockPromotions : Holley Overstock SaleSpecialty Part : Performance Part by JCW
Page 1 of 1 | Showing 1 - 14 of 14 results

Top Rated Products

97-245 Water Pump New
$155.96( Review)
Lovely delivery process
Kerissa F.
VERIFIED PURCHASER

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130-3120 OE Replacement Series Water Pump, New
GMB®
130-3120 OE Replacement Series Water Pump, New
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WP3121 OE Replacement Series Water Pump, New
DNJ®
WP3121 OE Replacement Series Water Pump, New
Part No: DNJWP3121
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Water Pump, 4 Cyl., 2.0L Engine
DriveMotive
Water Pump, 4 Cyl., 2.0L Engine
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Shopping for Water Pump

Water Pump Shopping Info

What Is a Water Pump?

The water pump is a component that allows coolant to circulate from the radiator to the engine, letting the fluid absorb the heat produced by the latter as the vehicle speeds up. It is typically installed with the radiator and cooling fan assembly.

How Much Does a Water Pump Replacement Cost?

A new water pump can cost anywhere between $20 and $400, depending on factors like your vehicle’s specifications, the water pump’s finish, material, pulley inclusion options, etc. Labor costs for a water pump replacement typically range from $250 to $350 excluding other fees like taxes.

Shop for an Aftermarket Water Pump on CarParts.com

Why wait in line for hours at a brick-and-mortar store just to buy a water pump when you can shop for one without any hassle here at CarParts.com? After all, we’ve made it so much easier for you to get the part you need with our easy-to-use website and toll-free hotline. All you have to do is enter your daily driver’s year, make, and model into our website’s vehicle selector. This will narrow down the search results to the water pumps that are compatible with your ride.

Worried about quality? We’ve got you covered! All our aftermarket products passed strict quality checks from the most trusted names in the industry, so you’re sure to get an aftermarket water pump that’s built to last. Our products also come with a low-price guarantee to help you get your vehicle back into shape without going over budget for your repairs.

Shop from the comfort of your own home and check out securely with just a few clicks. Order anytime, and we’ll get the part you need delivered to your doorstep in as fast as two business days. Take advantage of our unbeatable prices by shopping for a water pump today!

Helpful Automotive Resources

P2181 Code: Cooling System Performance
P2181 Code: Cooling System PerformanceThis code is similar to a P0128 or P0125 code but can also indicate engine overheating or electrical problems with the sensor circuit.
6 Signs of a Bad Radiator
6 Signs of a Bad RadiatorWhen the radiator isn’t working properly, you might notice several symptoms. While this isn’t an exhaustive list, here are the most common complaints. Overheating engine