2005 Mercury Grand Marquis Spark Plugs
More 2005 Mercury Grand Marquis Spark Plugs
Find your specific 2005 Mercury Grand Marquis original or aftermarket Spark Plugs below. Order your parts online and have delivered to your home or pick up in-store at Advance Auto.
Essential 2005 Mercury Grand Marquis Spark Plugs
Champion – Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RS14ZPYC5 (Part No.3407)
from
$3.99
Champion® Platinum Power¿ spark plugs deliver powerful performance. Made from exclusive Heat-Active¿ alloy, a fine-wire center electrode and V-trimmed ground electrode provides sharp spark focus.
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Product Features:
- Platinum Power- Premium Spark Plug. Powerful Performance.
- Platinum center electrode for long life
- Fine-wire center electrode for greater ignitability
- V-trimmed ground electrode promotes sharper spark focus
- Heat-Active┐ alloy allows electrodes to reach optimal temperature
- Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug
Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP103)
from
$9.99
Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.
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Product Features:
- 0.6 mm finewire design improves ignitability
- Patented V-trimmed platinum sidewire technology resists wear
- OE equivalent design is engineered for every engine
- Designed for better overall durability with virtually no gap erosion
NGK – OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, TR55-1 (Part No.2683)
from
$4.49
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.
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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
- Enhanced Ignitability: The V-cut nickel alloy center electrode and concave ground electrode design of NGK V-Power spark plugs provide quicker starts and smoother idle.
- OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring compatibility and reliable performance.
- V-Groove Tip Design: The unique V-Groove tip design of the TR55-1 model enhances ignitability and overall engine performance.
Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP666)
from
$4.29
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Platinum spark plugs provide a center wire platinum firing tip which provides reduced gap erosion, fewer misfires, better performance and increased durability. Consider upgrading to Autolite Double Platinum or Iridium XP spark plugs for increased performance.
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Product Features:
- High nickel alloy side electrode maintains precise gap
- Full platinum tip assures virtually no gap erosion for long life
- Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)
Motorcraft – Spark Plug (AGSF32FM) (Part No.SP-432)
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$6.99
Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles engineered to meet strict Ford engineering standards to provide original equipment performance and reliability. Delivering performance, reliability and confidence, Motorcraft spa
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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.
Accel – High-Performance Shorty Spark Plugs for Header Clearance (Part No.8199)
from
$52.99
ACCEL’s patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around. ACCEL Shorty Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL Shorty Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL Shorty Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.
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Product Features:
- Shorty Spark Plugs For Tubular Exhaust Headers
- Eliminates Dimpling Headers For Added Clearance
- Improves Spark Plug Access To Fit Socket Or Wrench
- Shorter Overall Plug Length Vs. OE Style Plug
- Copper Core Center Electrode
- Projected Tip
- Helps Eliminate Burned Spark Plug Boots
- Shorty Header Spark Plug
Champion – Copper Plus Spark Plug: Dependable Performance, OE Replacement, RV17YC (Part No.25)
from
$3.49
Dependable performance. This Champion® spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.
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Product Features:
- Copper Plus – Dependable Performance and Durability
- Copper core center electrode allows for accurate control of heat range for longer life
- Superior corrosion resistance
- Built to ISO and SAE standards for proven performance
- Built to ISO and SAE standards for proven performance
Motorcraft – Spark Plug (Part No.SP-493-X)
from
$9.99
The Motorcraft Spark Plug is a high-quality replacement spark plug designed to provide reliable performance and long-lasting durability for your vehicle. It features a nickel alloy electrode that provides superior wear resistance and a platinum tip that ensures consistent performance over the life of the plug. The Motorcraft Spark Plug also has a ribbed insulator design that helps prevent misfires and a copper core that provides efficient heat transfer. It is designed to meet or exceed OEM specifications and is compatible with a wide range of vehicles. Whether you’re looking to replace worn-out spark plugs or upgrade to a higher-quality option, the Motorcraft Spark Plug is an excellent choice that will help keep your engine running smoothly and efficiently.
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Autolite – Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (Part No.5145)
from
$2.99
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Guaranteed to deliver quick starts, good fuel economy and smooth acceleration, Autolite Copper Core spark plugs are designed to meet or exceed OES design requirements. Consider upgrading to Autolite Platinum, Double Platinum or Iridium XP plugs for improved engine performance. Copper core plugs are the industry standard.
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Product Features:
- Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
- Multi-rib insulator reduces danger of “flash-over”
- One-piece terminal post adds strength
- Resistor reduces radio frequency interference (RFI) and electrode erosion
Champion – Double Platinum & Power Spark Plug Exceptional Perf OE Replacement RS14ZPYPB (Part No.7407)
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$6.29
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- Platinum center and ground electrode for greater wear resistance
DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, ITF16 (Part No.5330)
from
$10.79
Increased performance with World’s smallest Iridium Center Eletrode (0.4mm).
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Product Features:
- World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
- Patented 360-degree laser welding assembly process
- U-groove and taper cut ground electrode to maximize flame propagation.
- Withstands temperatures greater than 4000┬░ Fahrenheit
- Burnished nickel plating for high temperature endurance and superior corrosion resistance
- Wide range of part numbers for thousands of applications, including classic and collector cars
- Iridium Power
- Superior Performance: Designed for maximum performance under extreme conditions, this spark plug delivers more horsepower, faster and easier starts, and fewer misfires under heavy loads.
- Enhanced Fuel Efficiency: The advanced iridium technology of the DENSO Iridium Power spark plug contributes to better fuel efficiency, making it an economical choice for your vehicle.
- Low Voltage Requirement: This spark plug requires 5,000 volts less to fire compared to conventional spark plugs, ensuring reliable ignition with lower energy consumption.
NGK – Ruthenium HX High Ignitability Spark Plug: DFE Tip Design, TR5AHX (Part No.94567)
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$14.99
NGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE technology as a high ignitability plug; Ruthenium HX spark plugs come with patented, specialized OEM DFE and PSPE tip designs. NGK Ruthenium HX High Ignitability spark plugs provide a more complete fuel burn resulting in a quicker throttle response, smoother idle and better cold starts. Ruthenium center electrode provides industry leading durability.
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Product Features:
- HIGH IGNITABILITY DOUBLE FINE ELECTRODE DESIGN: Combines 0.6 millimeter ruthenium center with opposed fine wire platinum ground electrode
- RUTHENIUM ALLOY CENTER ELECTRODE: NGK’s patented ruthenium technology produces maximum performance, ignitability & durability at high temperatures
- PLATINUM PIN TYPE GROUND ELECTRODE: Provides more complete fuel burn, quicker throttle response, smoother idle and better cold starts
- 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: Modern vehicles using OE DFE type spark plugs or for those seeking an aftermarket plug with the latest OE technology
- Specialized OEM Tip Designs: Features DFE and PSPE tip designs for enhanced ignitability and efficiency.
- Industry-Leading Durability: Ruthenium center electrode ensures long-lasting performance and reliability.
NGK – Ruthenium HX High Ignitability Spark Plug: DFE Tip Design, TR6AHX (Part No.92714)
from
$14.49
NGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE technology as a high ignitability plug; Ruthenium HX spark plugs come with patented, specialized OEM DFE and PSPE tip designs. NGK Ruthenium HX High Ignitability spark plugs provide a more complete fuel burn resulting in a quicker throttle response, smoother idle and better cold starts. Ruthenium center electrode provides industry leading durability.
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Product Features:
- HIGH IGNITABILITY DOUBLE FINE ELECTRODE DESIGN: Combines 0.6 millimeter ruthenium center with opposed fine wire platinum ground electrode
- RUTHENIUM ALLOY CENTER ELECTRODE: NGK’s patented ruthenium technology produces maximum performance, ignitability & durability at high temperatures
- PLATINUM PIN TYPE GROUND ELECTRODE: Provides more complete fuel burn, quicker throttle response, smoother idle and better cold starts
- 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: Modern vehicles using OE DFE type spark plugs or for those seeking an aftermarket plug with the latest OE technology
Champion – Copper Plus Spark Plug: Dependable Performance, OE Replacement, RS12YC (Part No.401)
from
$2.99
Dependable Performance, OE Replacement, RS12YC. This Champion® spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear. The Copper Plus design ensures dependable performance and durability, while the copper core center electrode allows for accurate control of heat range, extending the spark plug’s life. Built to ISO and SAE standards, it offers superior corrosion resistance and proven performance. The nickel center electrode tip and tapered seat type further enhance its reliability, making it an excellent choice for maintaining your engine’s efficiency.
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Product Features:
- Copper Plus – Dependable Performance and Durability
- Copper core center electrode allows for accurate control of heat range for longer life
- Superior corrosion resistance
- Built to ISO and SAE standards for proven performance
- Built to ISO and SAE standards for proven performance
- Enhanced Conductivity and Heat Control: The Champion Copper Plus Spark Plug features a copper core electrode that provides increased conductivity and heat control, ensuring good overall wear and extending the spark plug’s life.
- Reliable Nickel Center Electrode Tip: Featuring a nickel center electrode tip and a tapered seat type, this spark plug enhances reliability and ensures optimal engine performance.
ACDelco – Premium Double Platinum Tip Copper Core Spark Plug: Long-Lasting Performance & Durability (Part No.41-905)
from
$9.79
ACDelco Professional Double Platinum Spark Plugs are premium aftermarket plugs, and are a high quality replacement for many vehicles on the road today. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.
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Product Features:
- One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
- Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
- Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance
- Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
- ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
- Tapered Seat Design: The tapered seat type ensures a secure fit and optimal sealing in the engine.
- High-Quality Aftermarket Replacement: Manufactured to meet high standards of fit, form, and function, making it a reliable replacement for many vehicles on the road today.
NGK – Iridium IX Spark Plug: Single Iridium Fine Wire, UR4IX (Part No.7401)
from
$11.99
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.
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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
- High Performance: The Iridium IX Spark Plug is designed for the performance enthusiast, providing outstanding acceleration and exceptional anti-fouling.
- Improved Ignitability: With extreme ignitability, this spark plug ensures improved starting, idling and throttle response.
- Fuel Efficiency: The Iridium fine wire center electrode’s durability is six times harder than platinum, which provides high fuel efficiency.
NGK – G-Power Spark Plug: Single Platinum Tip Design, TR6GP (Part No.5141)
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$5.99
NGK G-Power Platinum spark plugs are the best single platinum spark plugs at an economical price. G-Power plugs feature a fine wire platinum center electrode and a trapezoidal cut ground electrode that offers increased durability, improved fuel efficiency
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Product Features:
- SINGLE PLATINUM TIP: Fine wire 0.6 millimeter platinum tip center electrode ensures improved durability and a consistently stable spark
- PLATINUM ALLOY: G-Power platinum provides exceptional value with increased performance and longer service intervals than factory nickel plugs
- TRAPEZOIDAL CUT GROUND ELECTRODE: Reduces quenching design produces improved ignitability and 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
- RECOMMENDED USAGE: Lower cost alternative to double precious metal spark plugs or as an upgrade to OE nickel alloy spark plugs
Champion – Copper Plus Spark Plug: Dependable Performance, OE Replacement, RS9YC (Part No.304)
from
$3.99
The Champion Spark Plug Copper Plus Spark Plug RS9YC is a reliable and high-performing OE replacement spark plug. It features a copper core center electrode that provides accurate control of heat range, ensuring optimal performance and fuel efficiency. The spark plug is built to ISO and SAE standards, ensuring proven performance and durability. The center electrode tip material is made of nickel, while the resistor type is designed to reduce electromagnetic interference. The tapered seat type ensures a secure fit and easy installation. Overall, the Champion Spark Plug Copper Plus Spark Plug RS9YC is a dependable choice for those seeking a high-quality spark plug replacement that delivers consistent performance and fuel efficiency.Copper core center electrode allows for accurate control of heat range for longer life Built to ISO and SAE standards for proven performance Built to ISO and SAE standards for proven performance Dependable Performance: The Copper Plus Spark Plug is designed to provide reliable and consistent performance, ensuring that your vehicle runs smoothly and efficiently. OE Replacement: This spark plug is an exact replacement for the original equipment (OE) part, ensuring a perfect fit and optimal performance. Nickel Center Electrode Tip Material: The center electrode tip of this spark plug is made from nickel, which provides superior conductivity and durability compared to other materials. Tapered Seat Type with Resistor: The tapered seat type of this spark plug ensures a secure fit in the engine block, while the built-in resistor helps reduce electromagnetic interference for improved performance.
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Motorcraft – High-Performance Spark Plug: Enhances Fuel Efficiency (Part No.SP-432-X)
from
$7.79
This premium spark plug is engineered to optimize your engine’s performance, ensuring a smoother and more efficient combustion process. Designed with advanced materials and precision manufacturing, it significantly improves fuel efficiency and reduces emissions. Ideal for both everyday driving and high-performance applications, the Motorcraft High-Performance Spark Plug offers reliable ignition and long-lasting durability, making it a smart choice for maintaining your vehicle’s peak performance.
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Product Features:
- Optimizes Engine Performance: The Motorcraft High-Performance Spark Plug is engineered to enhance your engine’s performance, ensuring a smoother and more efficient combustion process.
- Improves Fuel Efficiency: Designed with advanced materials and precision manufacturing, this spark plug significantly improves fuel efficiency, helping you save on fuel costs.
- Reduces Emissions: By ensuring a more efficient combustion process, the Motorcraft High-Performance Spark Plug helps reduce harmful emissions, contributing to a cleaner environment.
- Reliable Ignition: Ideal for both everyday driving and high-performance applications, this spark plug offers reliable ignition, ensuring your vehicle starts smoothly every time.
- Long-Lasting Durability: Built to last, the Motorcraft High-Performance Spark Plug provides long-lasting durability, making it a smart choice for maintaining your vehicle’s peak performance over time.
- Optimizes Engine Performance: The Motorcraft High-Performance Spark Plug is engineered to enhance your engine’s performance, ensuring a smoother and more efficient combustion process.
- Improves Fuel Efficiency: Designed with advanced materials and precision manufacturing, this spark plug significantly improves fuel efficiency, helping you save on fuel costs.
- Reduces Emissions: By ensuring a more efficient combustion process, the Motorcraft High-Performance Spark Plug helps reduce harmful emissions, contributing to a cleaner environment.
- Reliable Ignition: Ideal for both everyday driving and high-performance applications, this spark plug offers reliable ignition, ensuring your vehicle starts smoothly every time.
- Long-Lasting Durability: Built to last, the Motorcraft High-Performance Spark Plug provides long-lasting durability, making it a smart choice for maintaining your vehicle’s peak performance over time.
Motorcraft – Spark Plug (AGSF32C) (Part No.SP-447)
from
$4.79
Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles engineered to meet strict Ford engineering standards to provide original equipment performance and reliability. Delivering performance, reliability and confidence, Motorcraft spark plugs are available for a broad range of applications, including domestic and import cars and trucks of all makes and sizes.
Product Features:
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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.
Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP25)
from
$4.49
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Platinum spark plugs provide a center wire platinum firing tip which provides reduced gap erosion, fewer misfires, better performance and increased durability. Consider upgrading to Autolite Double Platinum or Iridium XP spark plugs for increased performance.
Product Features:
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Product Features:
- High nickel alloy side electrode maintains precise gap
- Full platinum tip assures virtually no gap erosion for long life
- Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)
DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IT20 (Part No.5326)
from
$11.99
Increased performance with World’s smallest Iridium Center Eletrode (0.4mm).
Product Features:
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Product Features:
- World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
- Patented 360-degree laser welding assembly process
- U-groove and taper cut ground electrode to maximize flame propagation.
- Withstands temperatures greater than 4000° Fahrenheit
- Burnished nickel plating for high temperature endurance and superior corrosion resistance
- Wide range of part numbers for thousands of applications, including classic and collector cars
- Iridium Power
Champion – Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RV17PMC4 (Part No.3018)
from
$4.99
Champion Platinum Power spark plugs deliver powerful performance. Made from exclusive Heat-Active alloy, a fine-wire center electrode and V-trimmed ground electrode provides sharp spark focus.
Product Features:
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Product Features:
- Heat-Active alloy allows electrodes to reach optimal temperature
- Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug
Champion – Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RS10PYC4 (Part No.3401)
from
$4.49
Champion Platinum Power spark plugs deliver powerful performance. Made from exclusive Heat-Active alloy, a fine-wire center electrode and V-trimmed ground electrode provides sharp spark focus.
Product Features:
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Product Features:
- Platinum Power- Premium Spark Plug. Powerful Performance.
- Platinum center electrode for long life
- Fine-wire center electrode for greater ignitability
- V-trimmed ground electrode promotes sharper spark focus
- Heat-Active alloy allows electrodes to reach optimal temperature
- Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug
ACDelco – Double Platinum Spark Plug (Part No.41-816)
from
$9.49
ACDelco Gold (Professional) Double Platinum Spark Plug are a high quality alternative to Original Equipment (OE) parts. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. 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:
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Product Features:
- One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
- Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
- Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance
- 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
Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP104)
from
$9.99
Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.
Product Features:
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Product Features:
- 0.6 mm finewire design improves ignitability
- Patented V-trimmed platinum sidewire technology resists wear
- OE equivalent design is engineered for every engine
- Designed for better overall durability with virtually no gap erosion
Motorcraft – SPARK PLUG (Part No.SP-409-AX)
from
$2.99
SPARK PLUG
NGK – OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, UR4 (Part No.6630)
from
$4.99
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:
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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
- Enhanced Ignitability: The V-cut nickel alloy center electrode and concave ground electrode design of NGK V-Power spark plugs provide quicker starts and smoother idle.
- OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring compatibility and reliable performance.
- V-Groove Tip Design: The unique V-groove tip design enhances ignitability and overall engine performance.
Popular 2005 Mercury Grand Marquis Spark Plugs Categories
2005 Mercury Grand Marquis Spark Plugs
Maybe you’re in the middle of a full rebuild of that 2005 Mercury Grand Marquis. Maybe you just need a couple of Spark Plugs. Either way, Advance Auto Parts has 25 different Spark Plugs in our inventory ranging from $2.99 to $18.99. That means you can find the exact parts or products you need to keep that 2005 Mercury Grand Marquis running smoothly.
Spark Plugs are only as good as their brand. We stock 7 different brands to make sure you have plenty of trusted parts to choose from for your 2005 Mercury Grand Marquis. Autolite, NGK, and Motorcraft are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!
We know you’ll find the perfect Spark Plugs for your 2005 Mercury Grand Marquis, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 2,350 reviews in this category, some of the top rated parts include PT16TT Platinum TT Spark Plug with 4.6 stars and DiamondFIRE Automotive Spark Plug: More Power, Saves Gas with 3.9 stars.
So if you’re in the market for aftermarket Spark Plugs to keep your 2005 Mercury Grand Marquis rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!
Spark Plugs Brands To Make Your 2005 Mercury Grand Marquis Last
Simple repair, complete replacement, or a full rebuild. No matter the job, your 2005 Mercury Grand Marquis demands trusted brand parts and products to keep it running. Many trusted brands of Spark Plugs make up Advance Auto Parts’ inventory, and all are ready to help make your Grand Marquis the best it can be. Be sure to browse some of our top Spark Plugs brands and parts.
Popular Motorcraft Spark Plugs
We carry Motorcraft parts in our stock across Spark Plugs categories, plus more. For a 2005 Mercury Grand Marquis, our most popular Motorcraft Spark Plugs include:
Top 2005 Mercury Grand Marquis Spark Plugs from Autolite
Autolite products are another trusted brand when it comes to Spark Plugs for your 2005 Mercury Grand Marquis. Popular Autolite parts include:
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$4.79
(203)
Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration
Spark Plugs
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$6.79
(96)
Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life
Spark Plugs
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$3.49
(67)
Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration
Spark Plugs
FAQs for 2005 Mercury Grand Marquis Spark Plugs
What are the most purchased Spark Plugs for the 2005 Mercury Grand Marquis?
Out of 25 Spark Plugs for the 2005 Mercury Grand Marquis, the most popular in our inventory are:
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$9.99
This product is not rated
Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition
Spark Plugs
What are the top-rated 2005 Mercury Grand Marquis Spark Plugs?
Top-rated Spark Plugs for your 2005 Mercury Grand Marquis based on customer reviews/ratings are:
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$2.99
(51)
Copper Plus Spark Plug: Dependable Performance, OE Replacement, RS12YC
“Good price.”
