1999 Ford F-550 Super Duty Spark Plugs

Essential 1999 Ford F-550 Super Duty Spark Plugs

Dorman – Help – Cylinder Head Repair Kit (Part No.42025)

Cylinder Head Repair Kit

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$63.99
This spark plug thread repair kit is designed to repair stripped spark plug threads in the cylinder heads of specific Ford and Lincoln vehicles, saving you time and money by eliminating the need to remove or replace the entire cylinder head. This convenient, complete kit comes with one boot, one spring, one sleeve and one spark plug.

Product Features:
  • Direct repair – this spark plug thread repair kit is designed to repair spark plug threads that have become stripped on specific Ford and Lincoln vehicles with Triton or Intech engines
  • Complete solution – this cylinder head repair kit includes everything you need to repair spark plug threads, including one boot, one spring, one sleeve and one spark plug
  • Saves time and money – this kit replaces stripped spark plug threads and eliminates the need to replace the entire cylinder head
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, last 100K+ Miles, IT20TT (Part No.4714)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, last 100K+ Miles, IT20TT

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$10.99
Durability of an OE style plug combined with Power & Torque of high performance.

Product Features:
  • 0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
  • 0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
  • DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
  • DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
  • Durability of an OE style plug combined with Power & Torque of high performance.
  • Withstands temperatures greater than 4000° Fahrenheit
  • Iridium TT
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NGK – Iridium IX Spark Plug: Single Iridium Fine Wire, ZNAR6AIX-11 (Part No.372)

Iridium IX Spark Plug: Single Iridium Fine Wire, ZNAR6AIX-11

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$12.99
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.

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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ACDelco – Double Platinum Spark Plug (Part No.41-812)

Double Platinum Spark Plug

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$9.79
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:
  • 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
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Champion – Copper Plus Spark Plug: Dependable Performance, OE Replacement, RS9YC (Part No.304)

Copper Plus Spark Plug: Dependable Performance, OE Replacement, RS9YC

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$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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    Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP103)

    Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration

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    $4.79
    With over 100 years of engineering expertise and more than 11 billion plugs sold, Autolite delivers unmatched reliability. Designed and engineered in the USA, these spark plugs feature a high nickel alloy side electrode that maintains a precise gap and a full platinum tip that ensures virtually no gap erosion for extended life. The necked-down center electrode fires quicker and cleaner with less voltage, providing easier starts, quicker acceleration, and improved fuel economy compared to standard plugs. The tapered seat type further enhances performance and durability.

    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)
    • Tapered Seat Type: Enhances performance and durability for a longer-lasting spark plug.
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    E3 – DiamondFIRE Automotive Spark Plug: More Power, Saves Gas (Part No.E3.70)

    DiamondFIRE Automotive Spark Plug: More Power, Saves Gas

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    $10.99
    The Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new The spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3.70 is a 16mm, 0.860 reach plug with a taper seat. It fits Ford Triton applications from 2004 to 2008. E3.70 is a unique design that solves a problem with the original OE application. The shell is made as a single piece, as opposed to two pieces, so it resists seizing in the engine and breaking apart when being removed. The automotive plugs have three legs securing the Diamond FIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented Diamond FIRE ground electrode is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use.

    Product Features:
    • The design of the Ford Triton engine can a cause build of carbon on the spark Plug threads, which may make removal difficult. E3.70’s shell is made of a one-piece design, which means it WILL NOT break during removal.
    • E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn
    • Smoother Acceleration & Idle – The faster flame initiated by the The spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
    • Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
    • Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
    • E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
    • Enhanced Heat Transfer: Three legs secure the Diamond FIRE electrode to the shell, providing excellent heat transfer and creating more turbulence in the cylinder for better combustion.
    • Specific Fit for Ford Triton: The E3.70 spark plug is designed to fit Ford Triton applications from 2004 to 2008, ensuring compatibility and optimal performance for these vehicles.
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    NGK – G-Power Spark Plug: Single Platinum Tip Design, TR55GP (Part No.3403)

    G-Power Spark Plug: Single Platinum Tip Design, TR55GP

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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, lower emissions, faster starts and quicker acceleration over conventional nickel spark plugs. An excellent upgrade for vehicles which used nickel alloy spark plugs originally. For better performance consider upgrading to a NGK Iridium IX plug. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.

    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
    • Improved Fuel Efficiency: Designed to offer better fuel efficiency, the NGK G-Power Platinum spark plugs help you save on fuel costs.
    • Lower Emissions: These spark plugs contribute to lower emissions, making them an environmentally friendly choice.
    • Faster Starts and Quicker Acceleration: Experience faster starts and quicker acceleration with the advanced design of the NGK G-Power Platinum spark plugs.
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    Motorcraft – Spark Plug (HJFS24FP) (Part No.SP-509)

    Spark Plug (HJFS24FP)

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    $14.49
    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

    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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    Autolite – Racing Resistor Spark Plug: Enables Performance, Handles Intense Conditions (Part No.AR103)

    Racing Resistor Spark Plug: Enables Performance, Handles Intense Conditions

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    $4.99
    The ground electrode is cut-back from the center electrode to provide a gap, and its concave face ensures a constant gap to the center electrode. This design opens the spark face for better ignitability of the flame kernel and retains less heat, transferring it to the shell faster to reduce the risk of pre-ignition. Dyno testing has shown proven power gains, making it ideal for all aftermarket cylinder heads used in various racing venues, including oval and road racing. The cut-back ground electrode is an evolution from the practice of grinding back the side electrode, and it features a tapered seat type for optimal performance.

    Product Features:
    • Opens spark face for better ignitability of flame kernel
    • Retains less heat, transfers heat to shell faster – reduces risk of pre-ignition
    • Dyno testing has shown proven power gains
    • Cut-back ground electrode evolved from practice of grinding back the side electrode
    • Optimal Performance: Features a tapered seat type for optimal performance in various racing venues, including oval and road racing.
    • Durable Design: Specifically designed to handle intense conditions, making it suitable for all aftermarket cylinder heads used in racing.
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    Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP5363)

    Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition

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    $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:
    • 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
    • Double Iridium-Enhanced Alloy Technology Center Electrode: Offers improved durability and wear resistance for a longer-lasting spark plug.
    • Engineered in the USA: Designed with over 100 years of Autolite’s engineering experience for superior quality and performance.
    • Proven Track Record: Part of a legacy with over 11 billion spark plugs sold, ensuring trusted performance and reliability.
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    Champion – Double Platinum & Power Spark Plug Exceptional Performance, OE Replacement 7989 (Part No.7989)

    Double Platinum & Power Spark Plug Exceptional Performance, OE Replacement 7989

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    $21.99
    Champion® Double Platinum Power spark plugs deliver more powerful performance with their premium design. Featuring a platinum center and ground electrode, these spark plugs offer greater wear resistance and maintain stable operating temperatures under all engine loads. The fine-wire center electrode ensures greater ignitability, while the V-trimmed ground electrode promotes sharper spark focus. The exclusive Heat-Active alloy allows the electrodes to reach optimal temperature, ensuring maximum life and consistent performance.

    Product Features:
    • Double Platinum Power – Premium Spark Plug. More Powerful Performance.
    • Platinum center and ground electrode for greater wear resistance
    • Maintains stable operating temperature under all engine loads
    • Fine-wire center electrode for greater ignitability
    • V-trimmed ground electrode promotes sharper spark focus
    • Heat-Active alloy allows electrodes to reach optimal temperature
    • OE Replacement: Designed as an original equipment replacement, ensuring compatibility and reliable performance for your vehicle.
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    Autolite – High Thread Pro Spark Plug: OE Design Exclusively for Ford 3V Engines, Finewire (Part No.HT15)

    High Thread Pro Spark Plug: OE Design Exclusively for Ford 3V Engines, Finewire

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    $13.99
    With over 100 years of engineering expertise and over 11 billion plugs sold, Autolite delivers exceptional performance. Designed and engineered in the USA, these Double Platinum spark plugs feature a high nickel alloy side electrode that maintains a precise gap, and a full platinum tip that ensures virtually no gap erosion for long life. The necked-down center electrode fires quicker and cleaner with less voltage, providing easier starts, quicker acceleration, and improved fuel economy compared to standard plugs. The tapered seat type further enhances the plug’s durability and performance.

    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)
    • OE Design Exclusively for Ford 3V Engines: Tailored specifically for Ford 3V engines, ensuring optimal compatibility and performance.
    • Tapered Seat Type: Designed with a tapered seat type to enhance the spark plug’s durability and overall performance.
    • Engineered in the USA: Designed and engineered in the USA, leveraging over 100 years of Autolite’s engineering expertise and experience.
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    Champion – Double Platinum & Power Spark Plug Exceptional Perf OE Replacement RS12PYPB5 (Part No.7963)

    Double Platinum & Power Spark Plug Exceptional Perf OE Replacement RS12PYPB5

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    $6.29
    Champion® Double Platinum Power spark plugs deliver more powerful performance with premium features. The double platinum power ensures greater wear resistance, while the fine-wire center electrode enhances ignitability. The V-trimmed ground electrode promotes sharper spark focus, and the exclusive Heat-Active alloy allows the electrodes to reach optimal temperature, maintaining stable operating temperature under all engine loads. With a platinum center electrode tip, resistor type, and tapered seat type, this combination guarantees maximum life and exceptional performance for your engine.

    Product Features:
    • Double Platinum Power – Premium Spark Plug. More Powerful Performance.
    • Platinum center and ground electrode for greater wear resistance
    • Maintains stable operating temperature under all engine loads
    • 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 Center Electrode Tip: Guarantees maximum life and exceptional performance.
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    Motorcraft – High-Durability Spark Plug: Reduces Misfires & Fuel Consumption (Part No.SP-479-X)

    High-Durability Spark Plug: Reduces Misfires & Fuel Consumption

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    $6.79
    Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles, engineered to meet strict Ford engineering standards for performance and reliability. These spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption, and optimize emissions. They are resistant to oxidation and arc erosion, feature a multi-rib insulator to protect against misfire, and offer service intervals of up to 100,000 miles. Backed by Motorcraft’s Service Parts Warranty, these spark plugs are an exact fit for Ford, Lincoln, and Mercury vehicles, ensuring reliable performance for almost any application. Motorcraft ignition components also help prevent false check engine lights, giving you confidence and peace of mind.

    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.
    • Iridium Center Electrode Tip: The Denso Iridium Spark Plug features a center electrode tip made of iridium, providing exceptional longevity and reliable performance.
    • Flat Seat Type Design: The flat seat type design enhances the durability of the spark plug, making it an ideal choice for maintaining optimal engine efficiency.
    • Strict OE Standards: Manufactured to the strictest OE performance, durability, and emissions standards, ensuring high-quality and reliable performance.
    • Long-Life Performance: Engineered for long-lasting performance, this spark plug helps maintain optimal engine efficiency over time.
    • Reduced Emissions: Designed to help reduce emissions, contributing to a cleaner and more efficient engine operation.
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    ACDelco – RAPIDFIRE Spark Plug (Part No.16)

    RAPIDFIRE Spark Plug

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    $5.99
    ACDelco Gold (Professional) RAPIDFIRE Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These RAPIDFIRE Single Platinum Performance Spark Plugs are designed for everyday use and are a high quality replacement for many vehicles on the road today. These premium aftermarket spark plugs have high-quality suppressors that help prevent misfiring, an improved plug to boot seal, and a pure copper core for greater durability. 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:
    • Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressures
    • Pure copper core provides great heat transfer and helps maximize plug durability
    • Platinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system
    • Ribless insulator helps optimize plug to boot sea
    • 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 – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP5363)

    Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life

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    $6.49
    Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.

    Product Features:
    • Works to optimize engine performance for a longer life and improved fuel economy
    • OE design
    • Full-platinum tips; platinum on both the center and side electrodes to promote reduced gap wear
    • Platinum ball welding process provides a consistent point of contact for enhanced adhesion
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    Champion – Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RS10PYC (Part No.3408)

    Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RS10PYC

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    $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:
    • 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
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    Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP103)

    Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition

    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:
    • 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
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    Champion – Iridium Spark Plug: Maximum Performance, OE Replacement, RS8WYPB5 (Part No.9808)

    Iridium Spark Plug: Maximum Performance, OE Replacement, RS8WYPB5

    from

    $8.49
    Champion Iridium – the ultimate element. This spark plug’s fine-wire iridium center and platinum ground electrodes provide the sharpest spark focus for maximum performance.

    Product Features:
    • Champion Iridium – Maximum Performance. Premium Spark Plug
    • Iridium center electrode delivers maximum life
    • Fine-wire center electrode and V-trimmed for greater ignitability
    • V-trimmed ground electrode promotes sharper spark focus
    • Maintains stable operating temperature under all engine loads
    • Heat-Active alloy allows electrodes to reach optimal temperature quickly
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    Motorcraft – Spark Plug (AGSF22WM) (Part No.SP-479)

    Spark Plug (AGSF22WM)

    from

    $6.49
    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:
    • 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 – G-Power Spark Plug: Single Platinum Tip Design, ZNAR6AGP (Part No.1698)

    G-Power Spark Plug: Single Platinum Tip Design, ZNAR6AGP

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    $7.99
    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, lower emissions, faster starts and quicker acceleration over conventional nickel spark plugs. An excellent upgrade for vehicles which used nickel alloy spark plugs originally. For better performance consider upgrading to a NGK Iridium IX plug. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.

    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
    • Enhanced Vehicle Performance: Delivers better overall engine performance, making it an excellent choice for those seeking an upgrade from standard spark plugs.
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    Motorcraft – Spark Plug (Part No.SP-509-X)

    Spark Plug

    from

    $14.49
    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:
    • 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 – OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, TR55 (Part No.3951)

    OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, TR55

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    $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:
    • 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 model enhances ignitability and overall engine performance.
    • Lower Emissions: The NGK Laser Platinum Spark Plug contributes to lower emissions, supporting a cleaner and more environmentally friendly driving experience.
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    Autolite Iridium – Iridium Ultra Finewire Spark Plug: Optimal Performance, Durability, Ignitability (Part No.AI5363)

    Iridium Ultra Finewire Spark Plug: Optimal Performance, Durability, Ignitability

    from

    $10.99
    Autolite Iridium Ultra Laser Finewire Spark Plugs are one of our brand’s most technologically advanced products. These spark plugs provide superior durability, more focused ignition with better overall ignitability for optimum performance. Autolite Spark Plugs are the best alternative to OE spark plugs, offering OE fit form and function supporting all foreign and domestic makes and models at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs in the world.

    Product Features:
    • Autolite Iridium Ultra is an engineered OE replacement iridium spark plug.
    • A laser-welded 0.5mm pure iridium finewire center electrode provides optimal fuel efficiency, acceleration and focused ignitability.
    • Nickel-plated shell to resist corrosion.
    • High-alumina ceramic insulator for increased strength.
    • Laser welded 0.5mm Iridium finewire center electrode.
    • Proprietary platinum sidewire technology.
    • Superior Durability: Autolite Iridium Ultra Laser Finewire Spark Plugs are designed to last longer, providing extended service life compared to standard spark plugs.
    • OE Fit and Function: Autolite Spark Plugs are the best alternative to original equipment (OE) spark plugs, offering perfect fit, form, and function for all foreign and domestic makes and models.
    • High-Quality Construction: As a leading supplier of spark plugs globally, Autolite ensures the highest quality ignition products for both the automotive aftermarket and original equipment manufacturers.
    • Value Pricing: Despite their advanced technology and superior performance, Autolite Iridium Ultra Laser Finewire Spark Plugs are available at a value price, making them an economical choice for vehicle maintenance.
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    Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP103)

    Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life

    from

    $6.79
    Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.

    Product Features:
    • Works to optimize engine performance for a longer life and improved fuel economy
    • OE design
    • Full-platinum tips; platinum on both the center and side electrodes to promote reduced gap wear
    • Platinum ball welding process provides a consistent point of contact for enhanced adhesion
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    Autolite – High Thread Pro Spark Plug: OE Design Exclusively for Ford 3V Engines, Finewire (Part No.HT2)

    High Thread Pro Spark Plug: OE Design Exclusively for Ford 3V Engines, Finewire

    from

    $11.99
    Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.

    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)
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    NGK – Iridium IX Spark Plug: Single Iridium Fine Wire, TR55IX (Part No.7164)

    Iridium IX Spark Plug: Single Iridium Fine Wire, TR55IX

    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 c

    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
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    1999 Ford F-550 Super Duty Spark Plugs

    Maybe you’re in the middle of a full rebuild of that 1999 Ford F-550 Super Duty. Maybe you just need a couple of Spark Plugs. Either way, Advance Auto Parts has 23 different Spark Plugs in our inventory ranging from $3.49 to $63.99. That means you can find the exact parts or products you need to keep that 1999 Ford F-550 Super Duty running smoothly.

    Spark Plugs are only as good as their brand. We stock 8 different brands to make sure you have plenty of trusted parts to choose from for your 1999 Ford F-550 Super Duty. NGK, Autolite, 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 1999 Ford F-550 Super Duty, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 1,187 reviews in this category, some of the top rated parts include Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life with 4.8 stars and DiamondFIRE Automotive Spark Plug: More Power, Saves Gas with 4.0 stars.

    So if you’re in the market for aftermarket Spark Plugs to keep your 1999 Ford F-550 Super Duty 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 1999 Ford F-550 Super Duty Last

    Simple repair, complete replacement, or a full rebuild. No matter the job, your 1999 Ford F-550 Super Duty 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 F-550 Super Duty the best it can be. Be sure to browse some of our top Spark Plugs brands and parts.

    FAQs for 1999 Ford F-550 Super Duty Spark Plugs

    What are the most purchased Spark Plugs for the 1999 Ford F-550 Super Duty?

    Out of 23 Spark Plugs for the 1999 Ford F-550 Super Duty, the most popular in our inventory are:
    Spark Plug (AGSF22WM)
    from $6.49
    (255)
    Spark Plug (AGSF22WM)
    Spark Plugs
    Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition
    from $9.99
    This product is not rated
    Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition
    Spark Plugs

    What are the top-rated 1999 Ford F-550 Super Duty Spark Plugs?

    Top-rated Spark Plugs for your 1999 Ford F-550 Super Duty based on customer reviews/ratings are:
    Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life
    from $6.79
    (53)
    Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life
    “I debated between platinum, double platinum, and iridium plugs as a suitable replacement for my copper-based plugs in my V12 Jaguar. I settled on the ”
    DiamondFIRE Automotive Spark Plug: More Power, Saves Gas
    from $6.99
    (35)
    DiamondFIRE Automotive Spark Plug: More Power, Saves Gas
    “I’ve installed these in my S10 and not had a problem with them. I drive mainly highway miles and gained 5% in fuel mileage. Will keep useing E3’s”
    Cylinder Head Repair Kit
    from $63.99
    (34)
    Cylinder Head Repair Kit
    “Was worried about repair cost. Then I found this product. Since my number 6 sparkplug blew it was easy to do the repair. My 98 expedition runs great n”