1990 Buick Regal Engine Cooling Parts

Keep Your 1990 Buick Regal in Top Shape with Quality Engine Cooling Parts

Whether you’re repairing or upgrading your Engine Cooling Part, using high-quality parts is key to keeping your 1990 Buick Regal looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Water Pumps, Radiators, and Thermostat and Water Outlet Gaskets. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Engine Cooling Parts from Trusted Brands

Looking for a reliable Engine Cooling Part? We’ve got you covered with options from brands you know and trust like FELPRO, Dorman, and Carquest Premium. For example, FELPRO Engine Cooling Parts start at just $2.99 with an average 4.6 star rating. Dorman and Carquest Premium offer similar pricing and quality, backed by strong customer feedback. With over 3,482 reviews and a solid 4 star average, you can shop with confidence knowing other Buick Regal owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1990 Buick Regal Engine Cooling Part at Advance Auto Parts is around $37.37, with a range that starts at $2.99 and goes up to $269.99. With 59 options in stock from 13 trusted brands, finding the right fit is easy. Popular picks like Radiator Cap: 16 PSI, THERMOSTAT GASKET, and Multi-Purpose O-Ring start at just $5.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Cooling Part, don’t forget to check out other key components like Blend Doors and Blower Motor and Related Products. At Advance Auto Parts, we’re here to help you keep your 1990 Buick Regal in peak condition, inside and out.

Essential 1990 Buick Regal Engine Cooling Parts

Mr. Gasket – Thermocap Radiator Cap (Part No.2476BK)

Thermocap Radiator Cap

from

$55.99
The fastest, easiest way to know exactly when it’s safe to open your radiator cap. ThermoCap, with its built-in calibrated thermometer, indicates the coolant temperature.

Product Features:
  • Indicates coolant temperature
  • Helps prevent coolant injuries
  • Fahrenheit and centigrade readings
  • Color-coded temperature ranges
  • Integrated coolant reclamation valve
  • Improves under-hood appearance
  • Chromed crown with a colored trim ring
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Motorad UltraStats – Thermostat: With Seal, 180 Degrees (Part No.5461-180)

Thermostat: With Seal, 180 Degrees

from

$41.99
UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resitance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components.

Product Features:
  • Heavy gauge stainless steel components offer increased reliability and long-lasting durability
  • Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
  • Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
  • AccuSpring Design for stable temperature control and increased cabin comfort
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Felpro – Multi-Purpose O-Ring (Part No.35614)

Multi-Purpose O-Ring

from

$6.29
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design
  • Manufactured for the sealing repair environment
  • Validated for fit, form, and function
  • Quality that you can trust
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Carquest Premium – Coolant Temperature Sensor 1TS1001 (Part No.WTC1002)

Coolant Temperature Sensor 1TS1001

from

$19.99
Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
  • OE precision matched thermistor ensuring Carquest sensors match OE output resistances across all temperature positions
  • O-rings, seals or thread sealant are included if required
  • Weather-tight connectors prevent leaks and corrosion for longer life
  • Extensive design validation testing and 100% end-of-line tested
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
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Imperial – Electric Fan, 12" Diameter (Part No.226112)

Electric Fan, 12" Diameter

from

$108.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

Product Features:
  • Rapid-Cool Thin-Line electric fans
  • 12″ Diameter
  • 800 CFM
  • Use as a pusher or puller fan
  • Motors built and tested to quality specifications
  • 12 in. universal fit reversible fan
  • 800 CFM
  • UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.
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Carquest Premium – Coolant Temperature Sender (Part No.WTC1237)

Coolant Temperature Sender

from

$10.99
Carquest Premium coolant temperature sensors and switches are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry, Carquest Premium coolant temperature sensors and switches undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium coolant temperature sensors and switches are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
  • OE precision matched thermistor ensuring sensors match OE output resistances across all temperature positions
  • O-rings, seals or thread sealant are included if required
  • Weather-tight connectors prevent leaks and corrosion for longer life
  • Extensive design validation testing and 100% end-of-line tested
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
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Carquest Premium – Multi-Use Connector (Part No.PTA1314)

Multi-Use Connector

from

$15.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:
  • Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
  • WVE electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
  • Product constructed to meet all design and operating characteristics as intended by the manufacturer.
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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Felpro – WATER OUTLET GASKET (Part No.35562 T)

WATER OUTLET GASKET

from

$20.99
Product Features:
  • Problem-solving gaskets featuring advanced sealing technologies designed specifically for the repair environment
  • PermaDryPlus water outlet gaskets utilize rigid carrier construction and silicone sealing beads to ensure a long-lasting seal, including those with warped housing flanges
  • Validated for fit, form, and function
  • Quality that you can trust
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Dorman – Help – Radiator Drain Cocks (Part No.61136)

Radiator Drain Cocks

from

$5.49
This radiator drain petcock is a direct replacement for the original equipment plug that may have deteriorated or corroded. Made of quality materials, this petcock is engineered to strict standards for durable use over time.

Product Features:
  • Direct replacement – this radiator drain petcock matches the fit and function of the original equipment part
  • Durable construction – this part is made of quality materials for a long service life
  • Saves money – offers original equipment quality at a competitive price
  • Quality assured – this petcock has undergone virtual testing to assure proper fit and function
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Dorman – Coolant Air Bleeder Screw (Part No.902-112)

Coolant Air Bleeder Screw

from

$18.99
This engine coolant bleeder screw has been manufactured from durable material to prevent cooling system leaks. Matches the original screw for fit and function.

Product Features:
  • Ideal replacement – this engine coolant bleeder screw matches fit and function of the original equipment screw
  • Durable materials – designed to withstand high cooling system temperatures and pressures
  • Cost-effective solution – this bleeder screw offers original equipment quality at a competitive price
  • Quality tested – this part has undergone try-on and material testing to ensure a quality fit and long service life
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Dorman – Engine Water Pump Pulley (Part No.300-933)

Engine Water Pump Pulley

from

$46.99
Damaged your engine water pump pulley? This pulley is a direct replacement for the original manufacturer’s part on specific vehicle years, makes and models, restoring proper performance.

Product Features:
  • Direct replacement – this engine water pump pulley matches the fit and function of the original part on specific vehicles
  • Durable design – built to withstand the elements and road debris
  • Thoroughly tested – must pass strict standards to ensure reliable longevity
  • Trustworthy quality – backed by team of engineers and inspectors in United States
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Dorman – Water Pump Mounting Hardware Kit (Part No.902-806)

Water Pump Mounting Hardware Kit

from

$15.99
This engine water pump stud kit is designed to match the original hardware required to repair the water pump on specified vehicles. Made of quality components, this kit is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this engine water pump stud kit is designed to match the original hardware required to repair the water pump on specified vehicles
  • Ideal solution – this kit is a reliable replacement for original hardware that is missing or damaged
  • Durable construction – this kit is made from quality components to ensure reliable performance and a long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Coolant Housing/Water Outlet: with Housing and Gasket, 45 Degree Neck Angle (Part No.902-2030)

Coolant Housing/Water Outlet: with Housing and Gasket, 45 Degree Neck Angle

from

$19.99
This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Product Features:
  • Ideal replacement – this engine coolant thermostat housing directly replaces the original housing on specified vehicle years, makes and models
  • Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
  • Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
  • Industry-leading design – professionally engineered by the aftermarket leader in replacement thermostat housings
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Carquest Premium – Radiator Cap Tester Adapter (Part No.12033)

Radiator Cap Tester Adapter

from

$95.99
Tester adapter for the MT-300 cooling system pressure testers. Professional grade test equipment to ensure an automotive cooling system is operating at the correct pressure. Made from high quality materials to ensure durability. Designed to test automotive coolant caps.

Product Features:
  • Machined metal construction
  • Works with MT-300 pressure tester
  • Tests coolant caps
  • Professional quality
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Edelbrock – Competition Water Pump for Small-Block – 3/8" NPT Pipe Aux Outlet (Part No.8817)

Competition Water Pump for Small-Block - 3/8" NPT Pipe Aux Outlet

from

$364.99
For circle track and endurance racing engines. Black anodized finish with 0.10 inch thicker rear cover. Impeller is larger than others for max pressure. Impeller vanes dramatically increase flow rates. Equal distribution to both sides of black with in 1 piece. Only flows in one-direction for optimum efficiency.

Product Features:
  • For Circle Track And Endurance Racing Engines
  • Black Anodized Finish w/0.10-in Thicker Rear Cover
  • Impeller is Larger than Others For Max Pressure
  • Impeller Vanes Dramatically Increase Flow Rates
  • Equal Distribution To Both Sides Of Block With 1pc
  • Only Flows in One-Direction for Optimum Efficiency
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Carquest Premium – Engine Cooling Fan Module (Part No.ACC1313)

Engine Cooling Fan Module

from

$99.99
All modern vehicles consist of several independent operating systems controlled by a main system processor with independent sub-processors. The sub-processors provide class 2 serial information data to the main processor while handling the operation of the system and carry the circuit load to protect the main operating system. When replacing any level processor programming may be needed to enter the unit into the vehicles main operating system.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.432297)

Radiator: With Transmission Oil Cooler

from

$192.99
Carquest Premium radiators are designed and engineered for maximum performance, using the highest-grade materials to ensure all radiators meet or exceed original equipment (O.E.) fit, form and function. Carquest Premium radiators are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Most modern vehicles use radiators with plastic tanks and our parts are engineered with integrated ribbing to prevent damage during thermal cycling. Carquest Premium radiators are also 100% tested to ensure a durable, leak-free cooling system repair.

Product Features:
  • Thermal tested under real-life temperature simulations
  • High tensile strength aluminum for maximum crimp strength
  • Plastic tanks are engineered with integrated ribbing for added strength to withstand cracks, bowing and distortion during thermal cycles
  • Thermal expansion slots extend core life and reduce failure rates by allowing improved core expansion and contraction during systematic heat cycles
  • Oil cooler designs meet or exceed OE standards, keeping the vehicle¿s engine and transmission performing at optimal conditions
  • OEM grade, premium fittings for transmission or engine oil coolers (where applicable)
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Carquest – A/C Compressor Connector (Part No.PT770)

A/C Compressor Connector

from

$16.05
BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.

Product Features:
  • Our knock sensors are designed to respond to knock frequencies up to 1000 Hz accommodating shifts in engine knock frequency making it a more flexible sensor responding to correct engine knock over a broad range of vehicle conditions
  • Manufacturing processes include an automated data acquisition system to continuously monitor the sensor output to ensure that it responds with appropriate voltage output at the specified frequency range
  • All units are 100% tested using an accelerometer vibration test to ensure trouble-free operation
  • Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box
  • BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product
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Dorman – Help – Engine Coolant Reservoir Cap: Flip Top, Plastic, 1 Pack (Part No.82601)

Engine Coolant Reservoir Cap: Flip Top, Plastic, 1 Pack

from

$11.99
Cracked or lost the original engine coolant reservoir cap? Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.

Product Features:
  • Direct replacement – this engine coolant reservoir cap directly replaces a cracked or lost original cap
  • Application specific – made to match dimensions of reservoir cap on only certain vehicle years, makes and models
  • Seamless fit – reverse-engineered from the original equipment to fit perfectly
  • Excellent value – a quick, easy replacement that’s less expensive than going back to the dealership
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Felpro – Engine Coolant Thermostat Gasket (Part No.36122)

Engine Coolant Thermostat Gasket

from

$4.49
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
See More

Edelbrock – Engine Water Pump Gasket Set for Chevy Small-Block (Part No.7251)

Engine Water Pump Gasket Set for Chevy Small-Block

from

$15.99
Edelbrock #7251 Engine Water Pump Gasket Set Chevy Small Block. Is it time to rebuild your Edelbrock mechanical water pump? No problem– these Edelbrock water pump gaskets will keep your water pump leak-free. They are manufactured from quality materials a

Product Features:
  • Composite Material
  • 2-Pump To Block
  • 1-Back Plate-To-Water Pump
  • O-Ring
  • For SB Chevy
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Imperial – Electric Fan, 10" Diameter (Part No.226110)

Electric Fan, 10" Diameter

from

$72.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

Product Features:
  • Rapid-Cool Thin-Line electric fans
  • 10″ Diameter
  • 650 CFM
  • Use as a pusher or puller fan
  • Motors built and tested to quality specifications
  • 10 in. universal fit reversible fan
  • 650 CFM
  • UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.
See More

Mr. Gasket – Bolt Water Pump (Part No.4996)

Bolt Water Pump

from

$41.99
This Mr. Gasket Water Pump Bolt Set includes chrome plated grade 5 hex head fasteners and AN style washers to install the water pump on your small block Chevrolet with the short style water pump. AN washers have no exposed shoulder which offers a professional appearance. Includes one 3/8 inch-16 x 2-1/2 bolt, three 3/8 inch-16 x 1-3/4 inch bolts, and four 3/8 inch AN washers.

Product Features:
  • Chrome plated
  • Grade 5
  • AN washers with no exposed shoulder for a professional appearance
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Dorman – Water Pump Mounting Hardware Kit (Part No.902-803)

Water Pump Mounting Hardware Kit

from

$25.49
This engine water pump stud kit is designed to match the original hardware required to repair the water pump on specified vehicles. Made of quality components, this kit is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this engine water pump stud kit is designed to match the original hardware required to repair the water pump on specified vehicles
  • Ideal solution – this kit is a reliable replacement for original hardware that is missing or damaged
  • Durable construction – this kit is made from quality components to ensure reliable performance and a long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Carquest Premium – Coolant Housing/Water Outlet (Part No.85167)

Coolant Housing/Water Outlet

from

$27.99
We are proud to offer this Carquest product line: Carquest Water Outlets. Our products are engineered and tested to provide years of trouble free operation and designed to be hassle free OE replacement part that meets and/or exceeds OE standards. Backed by over 50 years of mobile temperature control experience, fix it once and fix it right with CARQUST Water Outlets and Thermostat Housings.

Product Features:
  • Meets and/or exceeds OEM standard
  • Coated with corrosion and rust inhibitor
  • Coated with corrosion and rust inhibitor
  • 100% leak tested
  • Direct-fit replacement for ease of installation
  • Meets and/or exceeds OEM standard
  • Coated with corrosion and rust inhibitor
  • 100% leak tested
  • Direct-fit replacement for ease of installation
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Dorman – Engine Coolant Water Outlet (Part No.902-2087)

Engine Coolant Water Outlet

from

$114.99
This replacement engine coolant water outlet is engineered to match the fit and durability of the stock outlet on specific General Motors vehicles. It is rigorously tested for reliability, and has convenient features to simplify installation.

Product Features:
  • Ideal replacement – this engine coolant water outlet directly replaces the original water outlet on specific Buick, Chevrolet and GMC vehicles
  • Convenient features – includes sensor, bolts and quick-release clip to easily connect hose using constant-force clamp
  • Rigorous testing – design underwent as many as 16 functional tests to ensure performance and reliability
  • Restores operation – fully fixes a cracked or worn original equipment housing that is causing leaks or overheating
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GM Genuine Parts – 3-Way Female Black Multi-Purpose Pigtail (Part No.PT782)

3-Way Female Black Multi-Purpose Pigtail

from

$49.49
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Protective outer coverings help provide long-lasting durability
  • Color-coded wires allow for easy installation
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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Most Popular Water Pumps for 1990 Buick Regals

Enhance your 1990 Buick Regal with one of the 4 Water Pumps we have in stock, starting at just $28.99.

ACDelco – Water Pump Kit (Part No.252-721)

Water Pump Kit

from

$81.99
An ACDelco Professional, premium aftermarket Engine Water Pump circulates coolant through your vehicle’s radiator and engine system to help maintain proper engine temperature and performance. The gaskets, seals, and O-rings packaged with this Professional, premium aftermarket water pump help guarantee that all necessary parts are available for trouble-free installation. ACDelco Professional Water Pumps are a high quality replacement for many vehicles on the road today. This premium aftermarket replacement engine water pump is manufactured to meet your expectations for fit, form, and function.

Product Features:
  • All Makes water pumps fit GM vehicles as well as a wide range of non-GM vehicles
  • Thoroughly tested for reliable, leak-free performance
  • Coated seals support seal longevity and durability
  • Heat-treated shaft assemblies provide superior strength and durability over non-treated assemblies
  • High-quality bearings are permanently sealed and lubricated for greater durability and long life
  • Come with premium, high-quality replacement components needed for trouble-free and accurate installation
  • Uniform wall sections and smooth coolant-flow cavities for efficient operation
  • Cast-iron or aluminum design, depending on vehicle application
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Driveworks Water Pumps – Water Pump – Domestic Reman (Part No.58-411)

Water Pump - Domestic Reman

from

$28.99
100% leak testing and hub-pull testing ensures reliable performance. O.E.-supplied NEW unitized seals ensure long-lasting, trouble-free performance. Unlike other aftermarket manufacturers, Driveworks installs the proper O.E. specified bearing design to meet the specific radial and axial load requirements of each application. This ensures longer bearing life and reliable performance. Original casting specifications are strictly followed to ensure proper fit for easy installation and proper water flow for maximum cooling.

Product Features:
  • 100% leak testing and hub-pull testing ensures reliable performance.
  • O.E.-supplied new unitized seals ensure long-lasting, trouble-free performance.
  • The proper O.E. specified bearing design is installed to meet the specific radial and axial load requirements of each application. This ensures longer bearing life and reliable performance.
  • Thermostat seal and mounting gasket are supplied for ease of installation (where applicable).
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Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T1172)

Engine Water Pump: New, Gasket/Seals Included

from

$42.99
Carquest Premium drive motor inverter cooler water pumps are 100% new, high-quality parts that meet or exceed original equipment (O.E.) specifications. All components, including the housing, impeller, controller, gaskets, and seals are designed for long-lasting service life. These electric water pumps are supplied with the gaskets or seals necessary for installation. Our Carquest Premium auxiliary water pumps undergo stringent testing to ensure superior performance that we stand behind with an industry-leading warranty.

Product Features:
  • Built to meet or exceed OE fit, form and function
  • All components necessary for installation are supplied with pump
  • 100% tested for reliable performance
  • Follow all enclosed instructions to maximize pump life and validate warranty
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Carquest Premium – Engine Water Pump: New (Part No.T2178)

Engine Water Pump: New

from

$46.99
This premium water pump uses new high-quality components and is designed to meet or exceed OE specifications. This pump is 100% tested to ensure quality. Bearings, gaskets, seals, impeller, hub and housing are all designed for long-lasting service life. All necessary gaskets and seals are included.

Product Features:
  • Built to meet or exceed OE fit, form and function
  • All components necessary for installation are supplied with pump
  • 100% tested for reliable performance
  • Follow all enclosed instructions to maximize pump life and validate warranty
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Best-Selling 1990 Buick Regal Radiators

Upgrade your Regal with one of our 2 best-selling Radiators, earning an average 3.5 stars rating across 3 reviews.

Carquest Premium – Radiator: With Engine And Transmission Oil Coolers (Part No.432230)

Radiator: With Engine And Transmission Oil Coolers

from

$269.99
Carquest Premium radiators are designed and engineered for maximum performance, using the highest-grade materials to ensure all radiators meet or exceed original equipment (O.E.) fit, form and function. Carquest Premium radiators are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Most modern vehicles use radiators with plastic tanks and our parts are engineered with integrated ribbing to prevent damage during thermal cycling. Carquest Premium radiators are also 100% tested to ensure a durable, leak-free cooling system repair.

Product Features:
  • Thermal tested under real-life temperature simulations
  • High tensile strength aluminum for maximum crimp strength
  • Plastic tanks are engineeredáwith integrated ribbingáfor addedástrength to withstand cracks, bowing and distortion during thermal cycles
  • Thermal expansion slots extend core life and reduce failure rates by allowing improved core expansion and contraction during systematic heat cycles
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Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.432050)

Radiator: With Transmission Oil Cooler

from

$195.99
Carquest Premium radiators are designed and engineered for maximum performance, using the highest-grade materials to ensure all radiators meet or exceed original equipment (O.E.) fit, form and function. Carquest Premium radiators are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Most modern vehicles use radiators with plastic tanks and our parts are engineered with integrated ribbing to prevent damage during thermal cycling. Carquest Premium radiators are also 100% tested to ensure a durable, leak-free cooling system repair.

Product Features:
  • Thermal tested under real-life temperature simulations
  • High tensile strength aluminum for maximum crimp strength
  • Plastic tanks are engineeredáwith integrated ribbingáfor addedástrength to withstand cracks, bowing and distortion during thermal cycles
  • Thermal expansion slots extend core life and reduce failure rates by allowing improved core expansion and contraction during systematic heat cycles
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Top-Quality Thermostat and Water Outlet Gaskets for 1990 Buick Regals

Choose a high-quality OEM or aftermarket Thermostat and Water Outlet Gasket for Buick Regals and enjoy top-notch performance from $2.99.

Felpro – Engine Coolant Thermostat Housing Gasket (Part No.35534)

Engine Coolant Thermostat Housing Gasket

from

$2.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
See More

Victor Reinz – Engine Coolant Thermostat Gasket (Part No.71-13549-00)

Engine Coolant Thermostat Gasket

from

$5.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
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Top Picks for 1990 Buick Regal Thermostats

Invest in one of our 8 durable Thermostats for your 1990 Buick, knowing you’re getting trusted brands and expert craftsmanship.

Motorad UltraStats – UltraStat Thermostat: 195 Degrees (Part No.5203-195)

UltraStat Thermostat: 195 Degrees

from

$17.99
This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

Product Features:
  • Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
  • Heavy gauge stainless steel components offer increased reliability and long-lasting durability
  • Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
  • AccuSpring Design for stable temperature control and increased cabin comfort
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Motorad UltraStats – UltraStat Thermostat: 180 Degrees (Part No.5203-180)

UltraStat Thermostat: 180 Degrees

from

$16.99
This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

Product Features:
  • Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
  • Heavy gauge stainless steel components offer increased reliability and long-lasting durability
  • Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
  • AccuSpring Design for stable temperature control and increased cabin comfort
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Carquest Premium – Standard Thermostat: With Seal, 195 Degrees (Part No.13899)

Standard Thermostat: With Seal, 195 Degrees

from

$7.49
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
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Carquest Premium – Standard Thermostat: 195 Degrees (Part No.13849)

Standard Thermostat: 195 Degrees

from

$9.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
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Carquest Premium – Standard Thermostat:180 Degrees (Part No.13848)

Standard Thermostat:180 Degrees

from

$9.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
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Motorad UltraStats – UltraStat Thermostat: With Seal, 195 Degrees (Part No.5267-195)

UltraStat Thermostat: With Seal, 195 Degrees

from

$17.99
This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

Product Features:
  • Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
  • Heavy gauge stainless steel components offer increased reliability and long-lasting durability
  • Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
  • AccuSpring Design for stable temperature control and increased cabin comfort
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Carquest Premium – Engine Coolant HD Thermostat: With Seal, 180 Degrees (Part No.267-180)

Engine Coolant HD Thermostat: With Seal, 180 Degrees

from

$12.49
Manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

Carquest Premium – Standard Thermostat: 160 Degrees (Part No.13846)

Standard Thermostat: 160 Degrees

from

$8.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
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Coolant Reservoir Caps for 1990 Buick Regals

Make a smart move for your 1990 Buick Regal with products all priced from $11.99 to $57.99.

Dorman – Help – Engine Coolant Reservoir Cap: Flip Top, Plastic, 1 Pack (Part No.82601)

Engine Coolant Reservoir Cap: Flip Top, Plastic, 1 Pack

from

$11.99
Cracked or lost the original engine coolant reservoir cap? Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.

Product Features:
  • Direct replacement – this engine coolant reservoir cap directly replaces a cracked or lost original cap
  • Application specific – made to match dimensions of reservoir cap on only certain vehicle years, makes and models
  • Seamless fit – reverse-engineered from the original equipment to fit perfectly
  • Excellent value – a quick, easy replacement that’s less expensive than going back to the dealership
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Carquest Premium – Reservoir Cap (Part No.T174)

Reservoir Cap

from

$57.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
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Top-Rated Engine Cooling Part Brands For Your 1990 Buick Regal

When it comes to finding the perfect Engine Cooling Part for your 1990 Buick Regal, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 13 trusted brands. We carry the most popular Engine Cooling Part brands including FELPRO, Carquest Premium, and Dorman, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $2.99. Purchasing a Engine Cooling Part from us here at Advance Auto Parts is a smart move for both you and your 1990 Buick Regal, providing peace of mind with parts that meet or exceed OEM standards.

Popular FELPRO 1990 Buick Regal Engine Cooling Parts

If you’re looking for a top-quality Engine Cooling Part for your 1990 Buick Regal, Advance Auto Parts has exactly what you need with our selection of FELPRO Engine Cooling Parts. We have 3 FELPRO Engine Cooling Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $2.99 and an average cost of $5.09, you’ll find the perfect Engine Cooling Part for your needs and budget. FELPRO Engine Cooling Parts for the 1990 Buick Regal come highly rated, with over 145 customer reviews and an impressive average rating of 4.6 stars. Choosing a FELPRO Engine Cooling Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Engine Coolant Thermostat Housing Gasket
from $2.99
(3)
Engine Coolant Thermostat Housing Gasket
“Works as designed when vehicle was new. A better choice is the rubber gasket. Just know that you have to insert the thermostat on the inside of the ”
THERMOSTAT GASKET
from $5.99
(93)
THERMOSTAT GASKET
“works as stated”
Multi-Purpose O-Ring
from $6.29
(49)
Multi-Purpose O-Ring
“Worked like it should”

Top-Quality Carquest Premium 1990 Buick Regal Engine Cooling Parts

For those in search of a high-quality Engine Cooling Part for their 1990 Buick Regal, Advance Auto Parts offers a great selection of Carquest Premium Engine Cooling Parts. With 3 Carquest Premium Engine Cooling Parts in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Engine Cooling Parts start at just $7.49, with an average price of $20.49, giving you a range of options to suit your budget. Backed by over 570 customer ratings and an average rating of 4.4 stars, Carquest Premium Engine Cooling Parts provide both reliability and excellent performance. Choosing a Carquest Premium Engine Cooling Part from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Engine Water Pump: New, Gasket/Seals Included
from $42.99
(205)
Engine Water Pump: New, Gasket/Seals Included
“This a redesign from original pump, but works good and very easy to install on 2001 Lumina”
Standard Thermostat: With Seal, 195 Degrees
from $7.49
(105)
Standard Thermostat: With Seal, 195 Degrees
“Great value”
Radiator Cap: 16 PSI
from $10.99
(260)
Radiator Cap: 16 PSI
“great”

FAQs for 1990 Buick Regal Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 1990 Buick Regals?

Out of 59 Engine Cooling Parts that fit 1990 Buick Regals, the following parts are the top sellers:

What’s the price range for 1990 Buick Regal Engine Cooling Parts?

The prices of Engine Cooling Parts for the 1990 Buick Regal range from $2.99 up to $269.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 1990 Buick Regal?

The average price for Engine Cooling Parts for the 1990 Buick Regal is $37.37. Keep in mind the variety of part types within our Engine Cooling Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Cooling Parts for other Buick Regal model years?

Yes, we carry Engine Cooling Parts for 37 model years of Buick Regals between 1973 and 2017. The following model years are the most popular for Engine Cooling Part purchases: 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2004, and 2003.

What are the cheapest Engine Cooling Parts for my 1990 Buick Regal?

The cheapest 1990 Buick Regal Engine Cooling Parts we carry are:

Does Advance Auto Parts sell Engine Cooling Parts for any other 1990 Buick models?

Yes. We stock Engine Cooling Parts for 5 other popular 1990 Buick models. Some of the most popular are 1990 Century Engine Cooling Parts, 1990 LeSabre Engine Cooling Parts, 1990 Skylark Engine Cooling Parts, 1990 Riviera Engine Cooling Parts, and 1990 Electra Engine Cooling Parts.

What are the top-rated Engine Cooling Parts that fit the 1990 Buick Regal?

Based on 3,482 reviews by customers, our 1990 Buick Regal Engine Cooling Parts have an average customer rating of 4 stars. These are the highest-rated categories of Engine Cooling Parts for the 1990 Buick Regal and their top-rated products:

What types of Engine Cooling Parts do you sell for my 1990 Buick Regal?

As of 11/2/25, these are some of the most in-demand types of Engine Cooling Parts for a 1990 Buick Regal:

Can I get help with 1990 Buick Regal Engine Cooling Part orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Buick Engine Cooling Parts and more.

What is your return policy for Buick Regal Engine Cooling Parts?

Advance Auto Parts keeps returns simple. For new Buick Regal Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.