Mercury Medalist Spark Plugs

Your One-Stop Shop For Trusted Mercury Medalist Spark Plugs

If you’re in search of Mercury Medalist Spark Plugs aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 12 Spark Plugs from top brands with prices ranging from $1.29 to $99.99.

Beyond great prices, we stock trusted brands manufacturing all types of Spark Plugs for your Mercury Medalist.

And don’t forget to read customer reviews across all Spark Plugs categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Spark Plugs have to cost top dollar, and we prove it. Browse our top Mercury Medalist Spark Plugs below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Mercury Medalist Spark Plugs

Dorman – Help – Spark Plug Non-Foulers – 18mm Tapered Seat (Part No.42002)

Spark Plug Non-Foulers - 18mm Tapered Seat

from

$10.99
This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this spark plug non fouler is designed for easy installation to protect spark plugs from fouling and damage on specified vehicles
  • Ideal solution – this non-fouler preserves spark plug life and is a reliable replacement for an original non-fouler that has failed due to corrosion
  • Durable construction – 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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Accel – 8Mm Super Stock Graphite Uni (Part No.4040B)

8Mm Super Stock Graphite Uni

from

$71.99
ACCEL’s SuperStock 4000 series spark plug wire sets are designed to upgrade an OE ignition system for high-spark delivery levels for street driven applications. The 450 degree F rated silicone jacket is extruded over a tightly woven, rugged fiberglass braid. The braid is applied over high dielectric strength EPDM (Ethylene Propylene Diene Monomer) inner insulation for ignition wire performance that exceeds SAE specifications.

Product Features:
  • 7mm And 8mm High Gloss Silicone Jacket
  • 450 F Rated Silicone Jacket
  • Stainless Steel Plug Terminals
  • RFI Suppression For Street Driven Applications
  • Custom-fit Universal And Import Coverage
  • High-strength Fiberglass Braid Construction
  • Pre And Post HEI Vehicles
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Accel – 8Mm Super Stock Spiral Uni Bk (Part No.5040K)

8Mm Super Stock Spiral Uni Bk

from

$99.99
The traditional ACCEL combination of yellow wire and red spark plug boots has been added to these SuperStock Spiral Core 5000 Series wire sets, which feature color-matched wire and spark plug boots in blue, black, and red. With only 500 ohms/ft. of resistance, more ignition energy can reach the spark plug, producing a longer-lasting, hotter spark flame kernel. The results is higher performance through improved efficiency, quicker throttle response, and reduced emissions. This 8mm wire’s double silicone construction is rated to 550 degrees F. The high-gloss wire jacket resists moisture, chemicals, and heat extremes for longer life and great looks. The fiberglass braid adds greater pull strength and terminal retention, while the stainless steel spark plug terminals provide excellent long life, electrical conductivity, and corrosion resistance. Both universal and custom-fit applications are available for early and late model cars and trucks.

Product Features:
  • 500 Ohms/ft Of Resistance
  • 550 F Rated Silicone Jacket
  • Stainless Steel Plug Terminals
  • High RFI Suppression For Street And Strip Use
  • Universal And Import Coverage
  • High-strength Fiberglass Braid Construction
  • Pre And Post HEI Vehicles
  • 8mm High Gloss Silicone Jacket
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ACDelco – Copper Core Spark Plug: Reliable Performance & Durability (Part No.R85TS)

Copper Core Spark Plug: Reliable Performance & Durability

from

$3.99
ACDelco Gold (Professional) Conventional Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These Conventional Spark Plugs are designed for reliability and efficient performance, and are the high quality replacements for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Product Features:
  • Black Onyx coating helps reduce corrosion
  • Copper core provides great heat transfer and helps maximize plug durability
  • Ribbed suppressor seal extends resistance and helps prevent spark ‘flash over’ and misfires
  • Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
  • Available for use in Marine applications
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
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Autolite – Platinum Spark Plug: Enhanced Durability & Improved Performance (Part No.AP46)

Platinum Spark Plug: Enhanced Durability & Improved Performance

from

$4.99
Autolite Platinum spark plugs are crafted for exceptional performance and durability, making them ideal for older engine applications. Featuring a platinum center electrode firing tip, these spark plugs ensure quicker firing, smoother starts, and enhanced acceleration while boosting fuel efficiency. The platinum firing tip resists gap erosion, extending the service life, while the high alumina ceramic insulator provides superior thermal conductivity and insulation for added strength. A multi-rib insulator prevents flash-over, and the nickel-plated shell offers corrosion resistance for long-lasting reliability. Designed with a tapered seat type, these spark plugs enhance performance and durability, ensuring a consistent and powerful spark. With a long projection center electrode and a performance-grade design, Autolite Platinum spark plugs deliver reliable ignition and optimal engine efficiency, making them a valuable upgrade for maintaining peak engine performance.

Product Features:
  • Engineered with a platinum firing tip that prevents gap erosion for longer service life.
  • Its high alumina ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • The multi-rib insulator prevents flash-over.
  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended life.
  • Tapered Seat Type: Enhances performance and durability for a longer-lasting spark plug.
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Motorcraft – Standard Spark Plug (BSF82CA): Reliable Performance & Durability (Part No.SP-431-A)

Standard Spark Plug (BSF82CA): Reliable Performance & Durability

from

$4.79
Standard Spark Plug (BSF82CA) delivers reliable performance and durability, making it the ideal choice for maintaining your vehicle’s original equipment standards. Engineered specifically for Ford, Lincoln, and Mercury vehicles, these spark plugs ensure an exact fit while enhancing durability, reducing misfires, optimizing emissions, and improving fuel efficiency. Resistant to oxidation and arc erosion, they are built with high-quality materials to withstand demanding conditions and provide service intervals of up to 100,000 miles. The multi-rib insulator design protects against misfires, while Motorcraft ignition components help prevent false check engine lights, giving you confidence in your vehicle’s performance. Backed by Motorcraft’s Service Parts Warranty, these spark plugs are the same trusted components found in your vehicle at the time of manufacture, ensuring reliable performance for a wide range of domestic and import cars and trucks.

Product Features:
  • Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
  • Backed by Motorcraft’s Service Parts Warranty
  • Exact fit for Ford, Lincoln and Mercury vehicles
  • Resistant to oxidation and arc erosion.
  • Multi-rib insulator protects against misfire.
  • Service intervals of up to 100,000 miles.
  • Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
  • Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
  • Motorcraft ignition components help prevent false check engine lights.
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NGK – V-Power Nickel Spark Plug (WR5): Reliable Performance & Quick Starts (Part No.2438)

V-Power Nickel Spark Plug (WR5): Reliable Performance & Quick Starts

from

$6.99
NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.

Product Features:
  • ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
  • RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
  • NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
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Motorcraft – Standard Spark Plug: Excellent Heat Dissipation & Durability (Part No.SP-431)

Standard Spark Plug: Excellent Heat Dissipation & Durability

from

$2.79
The Standard Spark Plug by Motorcraft is the same high-quality part installed when your engine first rolled off the assembly line, ensuring a perfect fit and optimal performance. Designed with a 30,000-mile service interval, it features a copper core electrode and a nickel chromium alloy side electrode, providing exceptional heat dissipation and long-lasting durability. The built-in resistor minimizes radio frequency interference (RFI) while reducing electrode erosion, ensuring consistent performance over time. Its copper-glass seal securely bonds the insulator and terminal post center electrode, delivering the full required voltage at the spark gap while maintaining a gas-tight seal. With a tapered seat type for precise installation, this spark plug is engineered to meet the high standards set by Ford Motor Company, making it a reliable choice for maintaining your vehicle’s performance.

Product Features:
  • Same part installed when the engine rolled off the assembly line
  • 30,000-mile service interval
  • Copper core electrode and nickel chromium alloy side electrode for excellent heat dissipation and durability.
  • Resistor reduces radio frequency interference (RFI) and electrode erosion
  • Copper-glass seal bonds insulator and terminal post center electrode together to ensure full required voltage at spark gap and a gas-tight seal
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NGK – Iridium IX Spark Plug (WR5IX): Extreme Ignitability & Durability (Part No.7510)

Iridium IX Spark Plug (WR5IX): Extreme Ignitability & Durability

from

$12.49
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

Product Features:
  • SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
  • IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
  • TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
  • Outstanding Acceleration and High Fuel Efficiency: NGK Iridium IX spark plugs are engineered to deliver superior acceleration and enhance fuel efficiency, making them ideal for performance enthusiasts.
  • Extreme Ignitability and Anti-Fouling: These spark plugs offer exceptional ignitability and anti-fouling properties, ensuring reliable performance and longevity.
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Autolite – Copper Resistor Spark Plug: Quick Starts & Enhanced Durability (Part No.46)

Copper Resistor Spark Plug: Quick Starts & Enhanced Durability

from

$4.29
Autolite Copper spark plugs are designed to deliver reliable performance, ensuring quick starts and the power your vehicle demands. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, while the high nickel alloy center and ground electrodes provide extended life. The high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation, offering increased strength and durability. With a nickel-plated shell, these spark plugs resist corrosion for long-lasting performance. Engineered for optimal fuel economy, they help improve mileage while delivering smooth and responsive acceleration. Compliant with Original Equipment Service (OES) design Standards, they ensure dependable operation and a secure fit with their tapered seat type. The long projection center electrode and nickel tip materials further enhance their efficiency and reliability, making them a valuable addition to your vehicle’s ignition system.

Product Features:
  • The copper core center electrode aids in thermal control and improves resistance to fouling.
  • Its specially engineered high nickel alloy center and ground electrode provides extended life.
  • The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
  • Good Fuel Economy: Designed to optimize fuel consumption, these spark plugs help you achieve better mileage.
  • Smooth Acceleration: Experience smoother and more responsive acceleration with Autolite Copper Core spark plugs.
  • OES Design Compliance: These spark plugs meet or exceed Original Equipment Service (OES) design requirements, ensuring reliable performance.
  • Tapered Seat Type: Featuring a tapered seat type, these spark plugs provide a secure fit and optimal performance.
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Motorcraft – Spark Plug: Reliable Ignition & Durable Nickel Construction (Part No.SP-431-X)

Spark Plug: Reliable Ignition & Durable Nickel Construction

from

$4.99
The Spark Plug with a standard center electrode design and durable nickel construction ensures reliable ignition performance for your vehicle. Featuring a nickel center electrode tip and a nickel ground electrode tip, this spark plug is built for consistent conductivity and long-lasting durability. Its tapered seat type provides a secure fit, enhancing overall engine efficiency and performance. Designed to deliver dependable starts and smooth operation, this spark plug is an excellent choice for maintaining your vehicle’s ignition system. With its robust materials and precise engineering, it offers great value and reliability for everyday driving needs.

Product Features:
  • Standard center electrode design ensures consistent ignition performance for reliable engine starts.
  • Nickel center and ground electrode tips provide excellent conductivity and enhanced durability for long-lasting use.
  • Tapered seat type offers a secure fit, improving engine efficiency and overall performance.
  • Precisely engineered to deliver smooth operation and dependable ignition for everyday driving needs.
  • Constructed with robust materials to ensure reliability and value for maintaining your vehicle’s ignition system.
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Champion – Copper Plus Spark Plug (RF18YC): Dependable Performance & Durability (Part No.11)

Copper Plus Spark Plug (RF18YC): Dependable Performance & Durability

from

$1.29
Copper Plus Spark Plug RF18YC delivers dependable performance and durability, making it a reliable choice for your vehicle’s ignition system. Featuring a copper core center electrode, it ensures precise heat control and enhanced conductivity, promoting longer life and consistent wear. The patented TinTac and ULTRASEAL coated shell provide superior corrosion resistance, while the SAC-9 semiconductor resistor effectively suppresses EMI and RFI for optimal engine performance. Built to ISO and SAE Standards, this spark plug guarantees proven reliability and compatibility with a wide range of vehicles. Its tapered seat type ensures a secure fit, contributing to efficient combustion and smooth operation. Designed for drivers seeking quality and value, this spark plug combines advanced engineering with robust materials to keep your engine running at its best.

Product Features:
  • Copper Plus – Dependable Performance.
  • Copper core center electrode allows for accurate control of heat range for longer life
  • Patented TinTac and ULTRASEAL coated shell for maximum corrosion resistance
  • Patented SAC-9 semiconductor resistor for maximum EMI & RFI suppression
  • Built to ISO and SAE standards for proven performance
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Spark Plugs Brands You Can Trust For Your Mercury Medalist

7 trusted brands of Spark Plugs line our shelves, ready to help keep your Mercury Medalist running smooth. Below are some of the most popular brands and their top Spark Plugs offerings:

Popular Dorman – Help Spark Plugs

Dorman – Help products for the Mercury Medalist span several categories. Some of the highest-rated Dorman – Help Spark Plugs that will fit your Mercury Medalist are:
Spark Plug Non-Foulers - 18mm Tapered Seat
from $10.99
(8)
Spark Plug Non-Foulers – 18mm Tapered Seat
Spark Plug Non-Foulers

Most Purchased Mercury Medalist Spark Plugs from NGK

When you buy the most frequently purchased NGK brand Spark Plugs, you can be confident it will be the right part for your Mercury Medalist. Here are the NGK Spark Plugs Advanced Auto customers buy the most:
8Mm Super Stock Graphite Uni
from $71.99
(2)
8Mm Super Stock Graphite Uni
Spark Plug Wire Set Cut To Fits
Spark Plug Non-Foulers - 18mm Tapered Seat
from $10.99
(8)
Spark Plug Non-Foulers – 18mm Tapered Seat
Spark Plug Non-Foulers

FAQs for Mercury Medalist Spark Plugs

What are the most purchased Spark Plugs for the Mercury Medalist?

Out of 12 Spark Plugs for the Mercury Medalist, the most popular in our inventory are:
Standard Spark Plug (BSF82CA): Reliable Performance & Durability
from $4.79
This product is not rated
Standard Spark Plug (BSF82CA): Reliable Performance & Durability
Spark Plugs

What are the top-rated Mercury Medalist Spark Plugs?

Top-rated Spark Plugs for your Mercury Medalist based on customer reviews/ratings are:
8Mm Super Stock Spiral Uni Bk
from $99.99
(5)
8Mm Super Stock Spiral Uni Bk
“I’m very happy with my 8mm spiral wires from Accel. Installed in a 94 deville 4.9 and it looks like a factory install other than the labeled wires. My”
8Mm Super Stock Graphite Uni
from $71.99
(2)
8Mm Super Stock Graphite Uni
“These wires come with the spark plug end attached. You have to cut the wires to your desired length, strip, and attach the cap end yourself.”