1998 Mercury Mountaineer Engine Cooling Parts

Name: Radiator Cap: 16 PSI
Brand: Carquest Premium
SKU: 10333
Price: 21.99 USD
Rating: 4.0 (41 reviews)

Keep Your 1998 Mercury Mountaineer 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 1998 Mercury Mountaineer looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Water Pumps, Thermostat and Water Outlet Gaskets, and Thermostat and Water Outlet Assemblies. 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 Dorman, Carquest Premium, and FELPRO. For example, Dorman Engine Cooling Parts start at just $10.99 with an average 4.2 star rating. Carquest Premium and FELPRO offer similar pricing and quality, backed by strong customer feedback. With over 1,209 reviews and a solid 4 star average, you can shop with confidence knowing other Mercury Mountaineer owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1998 Mercury Mountaineer Engine Cooling Part at Advance Auto Parts is around $63.18, with a range that starts at $3.79 and goes up to $375.99. With 77 options in stock from 15 trusted brands, finding the right fit is easy. Popular picks like Engine Coolant Outlet Gasket, Standard Thermostat: 192 Degrees, and Standard Thermostat:: 192 Degrees start at just $3.99 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 1998 Mercury Mountaineer in peak condition, inside and out.

Looking for the perfect Engine Cooling Part for your 1998 Mercury Mountaineer? 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 Mountaineer. Whether you’re driving a 1998 model or another popular model year like 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, and 2010, 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 1998 Mercury Mountaineer Engine Cooling Parts

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$21.99

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:

Safety lever to vent coolant pressure before removal
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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$46.99

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:

Preset thermostatic fan control
185 Deg. F preset
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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$92.99

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
16″ diameter
1,400 CFM
Use as a pusher or puller fan
Motors built and tested to quality specifications
16 in. universal fit reversible fan
1400 CFM
UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.

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$16.99

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 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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$7.49

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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$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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$30.49

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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$58.99

New Platinum Pro Radiator Fan Shroud, 4.0 Liter V6 Engine

Product Features:

4.0 Liter V6 Engine
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
Check Out The Large Selection Of Parts Available For Your Vehicle

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$12.99

Carquest Coolant Temperature Sensors provide accurate data to the PCM to ensure proper management of your vehicle’s fuel injection system, ignition and variable valve timing, transmission shifting, and more. Manufactured using the highest quality OEM approved materials for increased durability in even the most extreme temperatures. All Carquest Coolant Temperature Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:

Product Features:

100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
Thread Sealant and/or O-ring pre-installed on applicable sensors to ensure leak free performance
Extensive product testing includes salt spray, high/low temperature impact, thermal vibration, durability, static electricity, and micro tension, among other tests, to ensure all sensors meet or exceed OEM specifications.
OE precision matched thermistor position for correct output parameters
Brass sensor housing precision machined to meet or exceed OE thermal conductivity

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$66.99

This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.

Product Features:

Direct replacement – this engine coolant reservoir matches the fit and function of the original part
Ideal solution – engineered for a seamless installation
Durable construction – manufactured from quality materials to withstand underhood heat and vibration
Trustworthy design – backed by 100 years of automotive aftermarket experience

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$14.99

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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$19.99

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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$7.99

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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$95.99

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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$93.99

Please note: Advance Auto Parts is proud to carry comparable exact-fit parts from multiple vendors, as such, the item you receive may be one of two quality brands. Both brands meet the same fitment requirements and are equal in their performance and specifications. The fan clutch is the component of the cooling system that varies the fan speed to meet the cooling needs of the engine. The fan clutch provides high airflow volume and, by only operating the fan as needed, promotes good fuel economy. CARQUEST fan clutches are designed to meet OE performance specifications.

Product Features:

CARQUEST Premium Fan Clutch
7″ thermal heavy-duty
Designed, tested and built by application
OE performance, fit and appearance

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$4.99

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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$26.99

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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$51.99

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.

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$10.99

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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$58.99

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.

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$341.99

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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$53.99

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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$6.49

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

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

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$43.99

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
Coated with corrosion and rust inhibitor
100% leak tested
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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$30.99

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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$10.99

This engine coolant temperature sensor clip is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this engine coolant temperature sensor clip matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this clip is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and 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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$103.99

Replace your damaged cooling fan blade with this direct replacement. This vehicle-specific application is engineered for a perfect fit and is made from quality materials to ensure durability and restore proper cooling system operation.

Product Features:

Direct replacement – this engine cooling fan blade fits and functions like the original equipment fan blade
Quality construction – manufactured from premium materials for a long service life
Excellent value – original equipment quality at a lower price
Quality tested – has undergone testing to ensure proper fit and performance

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$379.99

US Motor Works Professional Series Water Pump with Fan Clutch are designed to replace the mechanical components of a cooling system. A proper water pump replacement should include a new fan clutch as the two are connected to the same shaft and work together to move the air and cooling fluid. Replacing one without the other can damage the new part and cause repeat work or engine trouble. This matched set will allow your vehicle continued operation in the demanding environment of today’s engine. All components are brand new and QA inspected for perfect fit and function. Restore your cooling power by installing a US Motor Works Professional Series Water Pump with Fan Clutch.

Product Features:

Fan clutch mounts to the water pump and should be replaced at the same time.
Matched set for proper water pump or fan clutch replacement
Includes mounting hardware, gaskets and accessories as required.
Complete mechanical cooling parts replacement
Factory tested and 100% new product
Meets or exceeds OEM quality

Popular 1998 Mercury Mountaineer Engine Cooling Parts Categories

Radiators

Water Pumps

Engine Cooling Fan Controllers

Radiator Fan Clutch

Engine Coolant Thermostat Housing Caps

Radiator Caps

Thermostats

Water Pump Repair Kits

Radiator Fan Motors

Thermostat and Water Outlet Assemblies

Coolant Reservoirs

Coolant Temperature Sensors

Coolant Reservoir Caps

Water Outlets

OE Cooling Fan Blades

Engine Coolant Thermostat C-Clips

Engine Water Pump Relays

Thermostat Housings

Thermostat Seals

Water Pump Pulleys

Engine Cooling Fan Shrouds

Thermostat and Water Outlet Gaskets

Temperature Switch and Senders

Water Pump Gaskets

Radiator Drain Plugs

Coolant Fan Motor Connectors

Thermostat Housing O-Rings

Engine Water Pump with Fan Clutch

Electronic Auto Temp Control Sensor Connectors

Most Popular Water Pumps for 1998 Mercury Mountaineers

Enhance your 1998 Mercury Mountaineer with one of the 6 Water Pumps we have in stock, starting at just $72.99.

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$95.99

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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$72.99

Driveworks Water Pumps offer a complete replacement part solution, with application coverage that spans from antique to present-day vehicles. All units are 100% tested and engineered to meet or exceed OEM performance, providing you a quality product you and your vehicle can rely on. All units are manufacturered with brand new components and are packaged with all gaskets required for replacement.

Product Features:

100% Factory tested for leakage and dimensional precision
Manufactured to original casting specifications to ensure a proper fit and proper water flow for efficient cooling
Bearings made of heat-treated carbon or carburized steel are sealed and lubricated to ensure smooth performance throughout units life
Assembled with new, high-quality unitized shaft seals to prevent premature leakage
Supplied with gasket and other seals/gaskets as applicable per application to help complete the job
This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation

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$84.99

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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$179.99

ENGINE WATER PUMP

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$352.99

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 p

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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$144.99

NEW WATER PUMP

Best-Selling 1998 Mercury Mountaineer Thermostat and Water Outlet Gasket

Upgrade your Mountaineer with our best-selling Thermostat and Water Outlet Gasket with a 4.5 Starts rating across 51 reviews.

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$3.99

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

Top-Quality Thermostat and Water Outlet Assemblies for 1998 Mercury Mountaineers

Choose a high-quality OEM or aftermarket Thermostat and Water Outlet Assembly for Mercury Mountaineers and enjoy top-notch performance from $39.99.

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$53.99

Manufactured with OEM quality materials and safety standards by an OE Supplier. 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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$273.99

Original equipment thermostat housing assemblies often fail due to weak plastic construction. This Dorman OE FIX replacement upgrades the housing to metal to prevent warping and future failures.

Product Features:

Upgraded replacement – this integrated coolant thermostat housing assembly is made of metal to increase durability
Failure-resistant design – reengineered to prevent cracks and leaking that occur in the factory design
Complete repair – comes with thermostat housing, sensor, thermostat, gasket and O-ring
Quality engineering – designed in the United States and backed by decades of automotive aftermarket experience

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$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

Top Picks for 1998 Mercury Mountaineer Thermostats

Invest in one of our 9 durable Thermostats for your 1998 Mercury, knowing you’re getting trusted brands and expert craftsmanship.

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$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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$24.99

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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$24.99

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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$26.99

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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$5.79

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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$6.99

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

from

$24.99

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

from

$53.99

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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$25.99

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

Top-Rated Radiators for 1998 Mercury Mountaineers

Make a smart move for your 1998 Mercury Mountaineer with products all priced from $341.99 to $375.99.

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from

$375.99

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

from

$341.99

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

Top-Rated Engine Cooling Part Brands For Your 1998 Mercury Mountaineer

When it comes to finding the perfect Engine Cooling Part for your 1998 Mercury Mountaineer, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 15 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 $3.99. Purchasing a Engine Cooling Part from us here at Advance Auto Parts is a smart move for both you and your 1998 Mercury Mountaineer, providing peace of mind with parts that meet or exceed OEM standards.

Popular FELPRO 1998 Mercury Mountaineer Engine Cooling Parts

If you’re looking for a top-quality Engine Cooling Part for your 1998 Mercury Mountaineer, Advance Auto Parts has exactly what you need with our selection of FELPRO Engine Cooling Parts. We have 2 FELPRO Engine Cooling Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $3.99 and an average cost of $6.99, you’ll find the perfect Engine Cooling Part for your needs and budget. FELPRO Engine Cooling Parts for the 1998 Mercury Mountaineer come highly rated, with over 62 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.

from $3.99

(51)

Engine Coolant Outlet Gasket

“Good fit and seems to have stopped the leak.”

from $9.99

(11)

Engine Water Pump Gasket

“did the job right.”

Top-Quality Carquest Premium 1998 Mercury Mountaineer Engine Cooling Parts

For those in search of a high-quality Engine Cooling Part for their 1998 Mercury Mountaineer, 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 $24.99, with an average price of $163.32, giving you a range of options to suit your budget. Backed by over 23 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.

from $88.99

(6)

Severe Duty Fan Clutch – Thermal Reverse Rotation

“Installed very easily and works as it should. I’m not sure if it’s due to being severe duty, but it is a bit lound some days on start up, but usually ”

from $375.99

(9)

Radiator: With Transmission Oil Cooler

“Fit my 2001 Sport Trac perfectly, replacing the original 1 core radiator. No modifications necessary. The only parts I used from the old one were the ”

from $24.99

(8)

Standard Thermostat: 180 Degrees

“Help my truck getting lower temperature!”

FAQs for 1998 Mercury Mountaineer Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 1998 Mercury Mountaineers?

Out of 77 Engine Cooling Parts that fit 1998 Mercury Mountaineers, the following parts are the top sellers:

Engine Coolant Outlet Gasket (5781612) – $3.99
Standard Thermostat: 192 Degrees (11921762) – $26.99
Standard Thermostat:: 192 Degrees (11921776) – $5.79

What’s the price range for 1998 Mercury Mountaineer Engine Cooling Parts?

The prices of Engine Cooling Parts for the 1998 Mercury Mountaineer range from $3.79 up to $375.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 1998 Mercury Mountaineer?

The average price for Engine Cooling Parts for the 1998 Mercury Mountaineer is $63.18. 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 Mountaineer model years?

Yes, we carry Engine Cooling Parts for 12 model years of Mercury Mountaineers between 1997 and 2010. The following model years are the most popular for Engine Cooling Part purchases: 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, and 2002.

What are the cheapest Engine Cooling Parts for my 1998 Mercury Mountaineer?

The cheapest 1998 Mercury Mountaineer Engine Cooling Parts we carry are:

Engine Water Pump Gasket (19780084) – $3.79
Engine Coolant Outlet Gasket (5781612) – $3.99
O-RING (15780027) – $4.99
Engine Coolant Thermostat Gasket (12081607) – $4.99
Standard Thermostat:: 192 Degrees (11921776) – $5.79

Does Advance Auto Parts sell Engine Cooling Parts for any other 1998 Mercury models?

Yes. We stock Engine Cooling Parts for 4 other popular 1998 Mercury models. Some of the most popular are 1998 Grand Marquis Engine Cooling Parts, 1998 Villager Engine Cooling Parts, 1998 Sable Engine Cooling Parts, 1998 Tracer Engine Cooling Parts, and 1998 Mystique Engine Cooling Parts.

What are the top-rated Engine Cooling Parts that fit the 1998 Mercury Mountaineer?

Based on 1,209 reviews by customers, our 1998 Mercury Mountaineer Engine Cooling Parts have an average customer rating of 4 stars. These are the highest-rated categories of Engine Cooling Parts for the 1998 Mercury Mountaineer and their top-rated products:

Thermostat and Water Outlet Gaskets
- Engine Coolant Outlet Gasket (5781612) – $3.99
Engine Coolant Thermostat C-Clips
- Ford Cooling System Retaining Clip (11205058) – $10.99

What types of Engine Cooling Parts do you sell for my 1998 Mercury Mountaineer?

As of 11/2/25, these are some of the most in-demand types of Engine Cooling Parts for a 1998 Mercury Mountaineer:

Can I get help with 1998 Mercury Mountaineer 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 Mountaineer Engine Cooling Parts?

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

1998 Mercury Mountaineer Engine Cooling Parts

Carquest Premium – Radiator Cap: 16 PSI (Part No.10333)

Imperial – Thermostatic Fan Control – Preset (Part No.226206)

Imperial – Electric Fan, 16" Diameter (Part No.226116)

Carquest Premium – Temperature Sender With Gauge and Thread Sealant (Part No.WTC1021)

Dorman – Help – Radiator Drain Cocks (Part No.61127)

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

Dorman – Coolant Housing/Water Outlet: with Housing and O-Rings, 45 Degree Neck Angle (Part No.902-1006)

KAI – Cooling Fan Shroud (Part No.FO3110122)

Carquest Premium – Cylinder Head Temperature Sensor (Part No.WTA2392)

Dorman – Pressurized Coolant Reservoir: Clear, Plastic, Original Equipment Replacement (Part No.603-070)

Dorman – Help – Water Pump Stud Kit (Part No.23744)

Carquest Premium – Multi-Purpose Relay (Part No.FCA1001)

Felpro – Engine Water Pump Gasket (Part No.35478)

Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T4190)

Carquest Premium – Universal Fan Clutch – 7" Thermal Heavy Duty (Part No.215124)

Felpro – O-RING (Part No.35617)

Dorman – Engine Water Pump Pulley (Part No.300-942)

Carquest Premium – Electronic Automatic Temperature Control Sensor Connector (Part No.PTA3307)

Felpro – Multi-Purpose O-Ring (Part No.35489)

Carquest Premium – Multi-Use Connector (Part No.PTC2689)

Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.431328)

Motorad UltraStats – Thermostat: 192 Degrees (Part No.5248-192)

Felpro – THERMOSTAT GASKET (Part No.35673)

Carquest Premium – Coolant Housing/Water Outlet: Gasket Included (Part No.85400)

Dorman – Help – Engine Coolant Reservoir Cap: Flip Top, Plastic, 1 Pack (Part No.54209)

Dorman – Ford Cooling System Retaining Clip (Part No.800-019)

Dorman – Clutch Fan Blade: Steel, Cost Effective and Reliable (Part No.620-152)

US MOTOR WORKS – Water Pump with Fan Clutch (Part No.MCK1102)

Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T4190)

Driveworks Water Pumps – Water Pump: New, Installation Gasket Included (Part No.58-543)

Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T4168)

Motorcraft – ENGINE WATER PUMP (Part No.PW-458)

Edelbrock – Water Pump Ford 351w Racing (Part No.8833)

Motorcraft – NEW WATER PUMP (Part No.PW-685)

Felpro – Engine Coolant Outlet Gasket (Part No.35440)

Motorad – Thermostat Kit: Includes Water Oulet, Thermostat and Seal, 192 Degrees (Part No.5172KT)

Dorman – Engine Coolant Thermostat Housing Assembly (OE Fix) (Part No.902-1996)

Motorad – Thermostat Kit: Includes Housing, Thermostat and Gasket, 192 Degrees (Part No.5544KT)

Motorad UltraStats – UltraStat Thermostat: 192 Degrees (Part No.5244-192)

Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13648)

Carquest Premium – Standard Thermostat: 192 Degrees (Part No.13649)

Motorad – Standard Thermostat: 192 Degrees (Part No.248-192)

Motorad – Standard Thermostat:: 192 Degrees (Part No.244-192)

Motorad – Standard Thermostat: 180 Degrees (Part No.244-180)

Motorad – Standard Thermostat: 180 Degrees (Part No.248-180)

Motorad UltraStats – Thermostat: 192 Degrees (Part No.5248-192)

Carquest Premium – Standard Thermostat: 170 Degrees (Part No.248-174)

Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.432559)

Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.431328)