1999 Mercury Mystique Engine Cooling Parts

Keep Your 1999 Mercury Mystique 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 1999 Mercury Mystique looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Thermostats, Water Pumps, and Radiators. 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, Carquest Premium, and Dorman. For example, FELPRO Engine Cooling Parts start at just $5.49 with an average 4.6 star rating. Carquest Premium and Dorman offer similar pricing and quality, backed by strong customer feedback. With over 507 reviews and a solid 4 star average, you can shop with confidence knowing other Mercury Mystique owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1999 Mercury Mystique Engine Cooling Part at Advance Auto Parts is around $47.40, with a range that starts at $2.99 and goes up to $199.99. With 56 options in stock from 12 trusted brands, finding the right fit is easy. Popular picks like Multi-Purpose O-Ring, Standard Thermostat: 180 Degrees, and Standard Thermostat: 192 Degrees start at just $10.99 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 1999 Mercury Mystique in peak condition, inside and out.

Find Your Specific 1999 Mercury Mystique Engine Cooling Parts

Looking for the perfect Engine Cooling Part for your 1999 Mercury Mystique? You’re in the right place. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Engine Cooling Parts, ensuring durability and a precise fit for your Mercury Mystique. Whether you’re driving a 1999 model or another popular model year like 1995, 1996, 1997, 1998, and 2000, we’ve got you covered. Purchasing Engine Cooling Parts from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle.

Essential 1999 Mercury Mystique Engine Cooling Parts

Carquest Premium – Radiator Cap Adapter (Part No.12035)

Radiator Cap Adapter

from

$57.99
Tester adapter for the 9300 and 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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Carquest Premium – Coolant Housing/Water Outlet (Part No.84906)

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
  • Direct-fit replacement for ease of installation
  • 100% virgin resin material to insure durability
  • 100% leak tested
  • Meets and/or exceeds OEM standard
  • 100% virgin resin material to insure durability
  • 100% leak tested
  • Direct-fit replacement for ease of installation
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KAI – Radiator (Part No.RAD1719)

Radiator

from

$151.99
New Platinum Pro Radiator, 2.0 And 2.5 Liter V6 Engines

Product Features:
  • 2.0 And 2.5 Liter V6 Engines, Made Of Plastic and Aluminum
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Radiator Cap Not Included
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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Dorman – Coolant Housing/Water Outlet: with Housing and Gasket, 90 Degree Neck Angle (Part No.902-1014)

Coolant Housing/Water Outlet: with Housing and Gasket, 90 Degree Neck Angle

from

$31.99
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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Felpro – Engine Water Pump Gasket (Part No.35619)

Engine Water Pump Gasket

from

$6.79
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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(1 reviews)
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Felpro – Engine Coolant Thermostat Housing Gasket (Part No.35284)

Engine Coolant Thermostat Housing Gasket

from

$8.99
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
  • Manufactured for the sealing repair environment
  • Validated for fit, form, and function
  • Quality that you can trust
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(5 reviews)
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Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13978)

Standard Thermostat: 180 Degrees

from

$15.99
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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(2 reviews)
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Carquest Premium – Multi-Purpose Relay (Part No.RAA1964)

Multi-Purpose Relay

from

$41.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
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Carquest Premium – Multi-Use Connector (Part No.PTA1361)

Multi-Use Connector

from

$14.79
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.
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • 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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Dorman – Help – Radiator Drain Cocks (Part No.61138)

Radiator Drain Cocks

from

$6.99
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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(1 reviews)
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Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T4217)

Engine Water Pump: New, Gasket/Seals Included

from

$154.99
Carquest Premium water pumps are 100% new, high-quality parts that meet or exceed original equipment (O.E.) specifications. All components, including the housing, hub, bearings, gaskets and seals are designed for long-lasting service life. These water pumps are supplied with the gaskets or seals necessary for installation. Our Carquest Premium water pumps undergo stringent testing to ensure superior performance that we stand behind with an industry-leading warranty.

Product Features:
  • 100% tested for reliable performance
  • Durable housing features precisely machined mounting surface for proper sealing and fitment
  • Equipped with weep chamber or similar feature to help prevent unnecessary replacement
  • Included heavy-duty unitized bearings, pressed-on hubs and optimal impeller clearance for a long-lasting water pump
  • All gaskets or seals necessary for water pump are included
  • This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
  • This pump is driven by the timing chain; see vehicle manufacturer recommendation for replacement of timing components
  • This pump is driven by the timing belt; see vehicle manufacturer recommendation for replacement of timing components
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Carquest Premium – Engine Coolant Reservoir Cap (Part No.10251)

Engine Coolant Reservoir Cap

from

$36.49
Manufactured to meet all OEM specifications. Designed to be easy to install and remove. Manufactured from high quality components with proper relief and vacuum valves. Quality tested to stand up to even the most demanding automotive cooling systems.

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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Carquest Premium – Engine Coolant Temperature Sensor (Part No.ACA1523)

Engine Coolant Temperature Sensor

from

$29.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Coolant Temperature Switch 1TS1229 (Part No.WTC1072)

Coolant Temperature Switch 1TS1229

from

$29.99
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 Motorad 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 – Coolant Housing/Water Outlet: Gasket Included (Part No.85173)

Coolant Housing/Water Outlet: Gasket Included

from

$24.99
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
  • Includes quality gasket or O-ring to ensure proper seal (where applicable))
  • Coated with corrosion and rust inhibitor
  • 100% leak tested
  • Direct-fit replacement for ease of installation
  • Meets and/or exceeds OEM standard
  • Includes quality gasket or O-ring to ensure proper seal (where applicable)
  • Coated with corrosion and rust inhibitor
  • 100% leak tested
  • Direct-fit replacement for ease of installation
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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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(38 reviews)
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Motorad – Engine Coolant Thermostat Housing Assembly Thermostat: With Seal, 192 Degrees (Part No.5173KT)

Engine Coolant Thermostat Housing Assembly Thermostat: With Seal, 192 Degrees

from

$39.99
Kit includes thermostat, housing, and all necessary seals/gaskets to do the complete job. These individual parts are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat and housing 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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Dorman – Thermostat Assembly: Includes Water Outlet and O-Ring (Part No.902-200)

Thermostat Assembly: Includes Water Outlet and O-Ring

from

$66.99
This replacement engine coolant thermostat housing assembly is engineered to match the fit and durability of the stock housing assembly on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Product Features:
  • Ideal replacement – this engine coolant thermostat housing assembly directly replaces the original water outlet 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 housing assemblies
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(1 reviews)
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Carquest Premium – Multi-Use Connector (Part No.PTA3057)

Multi-Use Connector

from

$71.99
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.
  • Product constructed to meet all design and operating characteristics as intended by the manufacturer.
See More
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Felpro – Multi-Purpose O-Ring (Part No.35489)

Multi-Purpose O-Ring

from

$10.99
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
  • Manufactured for the sealing repair environment
  • Validated for fit, form, and function
  • Quality that you can trust
See More

(110 reviews)
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Felpro – O-RING (Part No.35717)

O-RING

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
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Motorcraft – THERMOSTAT O-RING (Part No.RG-571)

THERMOSTAT O-RING

from

$2.99
THERMOSTAT O-RING
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Imperial – Adjustable Thermostatic Fan Control (Part No.226203)

Adjustable Thermostatic Fan Control

from

$23.99
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:
  • Economy adjustable thermostatic fan control
  • Economy Model; 32-248 Deg. F
  • For use with Imperial electric fans
  • Probe installs into radiator fins
  • Contains gaskets, O-rings, or seals to properly replace the product
  • Brass construction for accurate temperature sensing
  • Zinc coated terminal to resist corrosion
  • Vehicle specific applications
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(35 reviews)
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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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Imperial – Adjustable Thermostatic Fan Control (Part No.226204)

Adjustable Thermostatic Fan Control

from

$65.99
Adjustable Thermostatic Fan Control. 160-210°F; push-in probe. Controls the operating temperature of Imperial electric fans. Operates up to 2 fans.

Product Features:
  • Adjustable thermostatic fan control
  • 160-210°F push-in probe
  • For use with Imperial electric fans
  • Probe installs into radiator fins
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(33 reviews)
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Dorman – Radiator Fan Assembly: Single, Cost Effective and Reliable (Part No.620-103)

Radiator Fan Assembly: Single, Cost Effective and Reliable

from

$125.99
This engine cooling fan assembly is precision-engineered to match the fit and performance of the stock radiator fan on specific vehicle years, makes and models. It has been rigorously tested to ensure it cools as effectively as the original part.

Product Features:
  • Ideal replacement – this engine cooling fan assembly was precision-engineered to match the fit and performance of the stock radiator fan assembly on specific vehicles
  • Complete package – assembly is designed with the same materials and components as the original part
  • Quality assured – motors are tested in laboratory settings to ensure performance
  • Cost effective and reliable – trustworthy manufacturing for far less than same part at the dealership
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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

(14 reviews)
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Popular 1999 Mercury Mystique Engine Cooling Parts Categories

Radiators
Radiators
Water Pumps
Water Pumps
Engine Cooling Fan Controllers
Engine Cooling Fan Controllers
Thermostats
Thermostats
Engine Cooling Fans
Engine Cooling Fans
Radiator Fan Motors
Radiator Fan Motors
Thermostat and Water Outlet Assemblies
Thermostat and Water Outlet Assemblies
Coolant Temperature Sensors
Coolant Temperature Sensors
Coolant Reservoir Caps
Coolant Reservoir Caps
Water Outlets
Water Outlets
Engine Coolant Pipe O-Rings
Engine Coolant Pipe O-Rings
Radiator Fan Control Relays
Radiator Fan Control Relays
Thermostat Housings
Thermostat Housings
Thermostat Seals
Thermostat Seals
Thermostat and Water Outlet Gaskets
Thermostat and Water Outlet Gaskets
Temperature Switch and Senders
Temperature Switch and Senders
Water Pump Gaskets
Water Pump Gaskets
Radiator Drain Plugs
Radiator Drain Plugs
Coolant Fan Motor Connectors
Coolant Fan Motor Connectors
Engine Coolant Water Inlets
Engine Coolant Water Inlets
Radiator Cap Tester Adapters
Radiator Cap Tester Adapters
Engine Cooling Fan Resistor Connectors
Engine Cooling Fan Resistor Connectors

Most Popular Thermostats for 1999 Mercury Mystiques

Enhance your 1999 Mercury Mystique with one of the 8 Thermostats we have in stock, starting at just $4.49.
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Carquest Premium – Standard Thermostat: 195 Degrees (Part No.13979)

Standard Thermostat: 195 Degrees

from

$11.99
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
See More

(8 reviews)
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Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13978)

Standard Thermostat: 180 Degrees

from

$15.99
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
See More

(2 reviews)
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Carquest Premium – Standard Thermostat: 180 Degrees (Part No.14138)

Standard Thermostat: 180 Degrees

from

$10.99
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
See More

(31 reviews)
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Carquest Premium – Standard Thermostat: 192 Degrees (Part No.14139)

Standard Thermostat: 192 Degrees

from

$11.49
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
See More

(26 reviews)
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Motorad UltraStats – UltraStat Thermostat: 192 Degrees (Part No.5354-192)

UltraStat Thermostat: 192 Degrees

from

$19.99
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.5270-180)

UltraStat Thermostat: 180 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: 195 Degrees (Part No.5270-195)

UltraStat Thermostat: 195 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
See More
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Carquest Premium – Standard Thermostat: 180 Degrees (Part No.49368)

Standard Thermostat: 180 Degrees

from

$4.49
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:
  • Precise fitting sealing edges prevent leakage and premature cooling.
  • Self-cleaning and self-aligning thermostat valve.
  • Stainless steel assembly and springs are engineered for long life and smooth performance.
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Best-Selling 1999 Mercury Mystique Water Pumps

Upgrade your Mystique with one of our 3 best-selling Water Pumps, earning an average 4.25 stars rating across 31 reviews.
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Driveworks Water Pumps – Water Pump (Part No.58-547)

Water Pump

from

$48.49
Driveworks Remanufactured Water Pumps offer a complete replacement part solution, with application coverage spanning from antique to present-day vehicles. All units are 100% tested and engineered to meet or exceed O.E.M. performance, providing you a quality product you and your vehicle can rely on.

Product Features:
  • 100% leak tested and hub-pull tested to promote a long, trouble-free performance life
  • Designed and manufactured with new, high-quality unitized seals from OE suppliers to ensure long, trouble-free performance
  • Each unit uses the proper bearing design as specified by the OE manufacturer to meet the specific radial torque and axial load requirements of each application to promote long bearing life and trouble-free performance
  • Supplied with high-quality mounting gasket and other seals/gaskets as applicable per application to help complete the job
  • Manufactured to original casting specifications to ensure a proper fit and proper water flow for efficient cooling
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(7 reviews)
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Carquest Premium – New Premium Water Pump (Part No.T1159)

New Premium Water Pump

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$52.99
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. A

Product Features:
  • This pump is used on accessory belt driven applications
  • Equipped with weep chamber or similar feature to help prevent unnecessary replacement
  • All gaskets or seals necessary for installation are supplied with pump
  • Durable housing features precisely machined mounting surfaces for proper sealing
  • Follow all enclosed instructions to maximize pump life and validate warranty
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(24 reviews)
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Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T4217)

Engine Water Pump: New, Gasket/Seals Included

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$154.99
Carquest Premium water pumps are 100% new, high-quality parts that meet or exceed original equipment (O.E.) specifications. All components, including the housing, hub, bearings, gaskets and seals are designed for long-lasting service life. These water pumps are supplied with the gaskets or seals necessary for installation. Our Carquest Premium water pumps undergo stringent testing to ensure superior performance that we stand behind with an industry-leading warranty.

Product Features:
  • 100% tested for reliable performance
  • Durable housing features precisely machined mounting surface for proper sealing and fitment
  • Equipped with weep chamber or similar feature to help prevent unnecessary replacement
  • Included heavy-duty unitized bearings, pressed-on hubs and optimal impeller clearance for a long-lasting water pump
  • All gaskets or seals necessary for water pump are included
  • This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
  • This pump is driven by the timing chain; see vehicle manufacturer recommendation for replacement of timing components
  • This pump is driven by the timing belt; see vehicle manufacturer recommendation for replacement of timing components
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Top-Quality Radiators for 1999 Mercury Mystiques

Choose a high-quality OEM or aftermarket Radiator for Mercury Mystiques and enjoy top-notch performance from $151.99.
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Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.432376)

Radiator: With Transmission Oil Cooler

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$199.99
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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(4 reviews)
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KAI – Radiator (Part No.RAD1719)

Radiator

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$151.99
New Platinum Pro Radiator, 2.0 And 2.5 Liter V6 Engines

Product Features:
  • 2.0 And 2.5 Liter V6 Engines, Made Of Plastic and Aluminum
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Radiator Cap Not Included
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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Top Picks for 1999 Mercury Mystique Thermostat and Water Outlet Assemblies

Invest in one of our 2 durable Thermostat and Water Outlet Assemblies for your 1999 Mercury, knowing you’re getting trusted brands and expert craftsmanship.
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Dorman – Thermostat Assembly: Includes Water Outlet and O-Ring (Part No.902-200)

Thermostat Assembly: Includes Water Outlet and O-Ring

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$66.99
This replacement engine coolant thermostat housing assembly is engineered to match the fit and durability of the stock housing assembly on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Product Features:
  • Ideal replacement – this engine coolant thermostat housing assembly directly replaces the original water outlet 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 housing assemblies
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(1 reviews)
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Motorad – Engine Coolant Thermostat Housing Assembly Thermostat: With Seal, 192 Degrees (Part No.5173KT)

Engine Coolant Thermostat Housing Assembly Thermostat: With Seal, 192 Degrees

from

$39.99
Kit includes thermostat, housing, and all necessary seals/gaskets to do the complete job. These individual parts are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat and housing 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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Our Top-Rated Thermostat and Water Outlet Gaskets for 1999 Mercury Mystiques

Make a smart move for your 1999 Mercury Mystique with our Thermostat and Water Outlet Gasket for $10.99.
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Felpro – Multi-Purpose O-Ring (Part No.35489)

Multi-Purpose O-Ring

from

$10.99
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
  • Manufactured for the sealing repair environment
  • Validated for fit, form, and function
  • Quality that you can trust
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(110 reviews)
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Top-Rated Engine Cooling Part Brands For Your 1999 Mercury Mystique

When it comes to finding the perfect Engine Cooling Part for your 1999 Mercury Mystique, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 12 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 $5.49. Purchasing a Engine Cooling Part from us here at Advance Auto Parts is a smart move for both you and your 1999 Mercury Mystique, providing peace of mind with parts that meet or exceed OEM standards.

Popular FELPRO 1999 Mercury Mystique Engine Cooling Parts

If you’re looking for a top-quality Engine Cooling Part for your 1999 Mercury Mystique, 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 $5.49 and an average cost of $7.09, you’ll find the perfect Engine Cooling Part for your needs and budget. FELPRO Engine Cooling Parts for the 1999 Mercury Mystique come highly rated, with over 8 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 Water Pump Gasket
from $5.49
(2)
Engine Water Pump Gasket
“exact fit”
Engine Coolant Thermostat Housing Gasket
from $8.99
(5)
Engine Coolant Thermostat Housing Gasket
“Fast pick up”
Engine Water Pump Gasket
from $6.79
(1)
Engine Water Pump Gasket
“Fit perfectly on 2000 Ford Focus, as specified.”

Top-Quality Carquest Premium 1999 Mercury Mystique Engine Cooling Parts

For those in search of a high-quality Engine Cooling Part for their 1999 Mercury Mystique, 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 $10.99, with an average price of $12.99, giving you a range of options to suit your budget. Backed by over 41 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.
Standard Thermostat: 195 Degrees
from $11.99
(8)
Standard Thermostat: 195 Degrees
“itworks”
Standard Thermostat: 180 Degrees
from $10.99
(31)
Standard Thermostat: 180 Degrees
“Good product & worked as expected!”
Standard Thermostat: 180 Degrees
from $15.99
(2)
Standard Thermostat: 180 Degrees
“Easy to install. Ordered online and didn’t have to wait in a line.”

FAQs for 1999 Mercury Mystique Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 1999 Mercury Mystiques?

Out of 56 Engine Cooling Parts that fit 1999 Mercury Mystiques, the following parts are the top sellers:

What’s the price range for 1999 Mercury Mystique Engine Cooling Parts?

The prices of Engine Cooling Parts for the 1999 Mercury Mystique range from $2.99 up to $199.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 1999 Mercury Mystique?

The average price for Engine Cooling Parts for the 1999 Mercury Mystique is $47.40. 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 Mercury Mystique model years?

Yes, we carry Engine Cooling Parts for 4 model years of Mercury Mystiques between 1995 and 2000. The following model years are the most popular for Engine Cooling Part purchases: 2000, 1998, 1997, 1996, and 1995.

What are the cheapest Engine Cooling Parts for my 1999 Mercury Mystique?

The cheapest 1999 Mercury Mystique Engine Cooling Parts we carry are:

Does Advance Auto Parts sell Engine Cooling Parts for any other 1999 Mercury models?

Yes. We stock Engine Cooling Parts for 5 other popular 1999 Mercury models. Some of the most popular are 1999 Cougar Engine Cooling Parts, 1999 Grand Marquis Engine Cooling Parts, 1999 Mountaineer Engine Cooling Parts, 1999 Villager Engine Cooling Parts, and 1999 Sable Engine Cooling Parts.

What types of Engine Cooling Parts do you sell for my 1999 Mercury Mystique?

As of 11/2/25, these are some of the most in-demand types of Engine Cooling Parts for a 1999 Mercury Mystique:

Can I get help with 1999 Mercury Mystique 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 Mercury Engine Cooling Parts and more.

What is your return policy for Mercury Mystique Engine Cooling Parts?

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

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