from

$3.79

Manufactured to OEM quality standards.

Product Features:

OEM specified special ground electrode configuration
Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
Wide range of part numbers for thousands of applications, including classic and collector cars
Lasts twice as long as most conventional plugs
100% pre-fired to assure reliable operation
U-Groove Conventional

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$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

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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$25.99

NGK Laser Iridium High Ignitability spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium High Ignitability spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Laser Iridium High Ignitability spark plugs feature raised platinum pad or platinum fine wire tip on the ground electrode for even wear in distributorless ignition systems and improved spark performance.

Product Features:

ACTUAL OE or EQUIVALENT HIGH IGNITABILITY DESIGN: SPE tip & iridium alloy center electrode produce the most advanced OE spark plug technology
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
SPE DESIGN: Square platinum electrode shape of the ground electrode provides the best ignitability and service life for high heat engines
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: Best for vehicles with OE SPE iridium alloy plugs

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$9.49

The Champion Spark Plug Platinum Power Spark Plug RERX6PMCB4 is an OE replacement spark plug designed to provide powerful performance for your vehicle. Its center electrode design features a fine wire made of platinum, which ensures a consistent spark and improved fuel efficiency. The platinum firing tip material also helps to reduce wear and tear on the spark plug, resulting in a longer lifespan. The ground electrode tip material is made of nickel, which provides excellent conductivity and corrosion resistance. The spark plug also features a flat seat type and a resistor type, which helps to reduce electromagnetic interference and radio frequency noise. Overall, the Champion Spark Plug Platinum Power Spark Plug RERX6PMCB4 is a reliable and high-performing option for your vehicle’s ignition system.

Fine Wire Center Electrode Design for improved ignitability and performance.

Platinum Firing Tip on the Center Electrode for longer lifespan and consistent spark.

Nickel Ground Electrode Tip Material for better heat dissipation and durability.

Resistor Type to reduce electromagnetic interference and improve engine performance.

Flat Seat Type for easy installation and compatibility with a wide range of vehicles as an OE replacement.

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$4.49

Dependable performance. This Champion spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.

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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$3.49

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:

Copper cored center electrode for higher thermal conductivity
Specially engineered high nickel alloy center and ground electrode for extended life
High alumina ceramic for high dielectric strength
Leak proof, heat fused internal seal for durability
Multi-rib insulator prevents flash-over

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$9.99

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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$17.12

Only Bosch uses a platinum center electrode, heat-fused into an extended insulator that reaches self-cleaning temperature only seconds after starting. Lower ignition voltage requirements versus other plug designs for reliable cold weather starts and superior operation under all driving conditions.

Product Features:

OE-Equivalent and direct fit application.
Platinum center electrode, heat-fused into an extended insulator.
Nickel-plated rolled threads.
Tapered, yttrium-enhanced v-profile ground electrode.
Electrode gap is factory set and never requires adjustment.
Anti-seize and corrosion protection.

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$22.07

NGK’s Laser Iridium Spark Plugs Provide Superior Ignitability and Long Service Life. Fine Wire Iridium Tipped Center Electrode and Fine Wire Platinum Tipped Ground Electrode Ensures Slow Wear Rate Providing Stable Idle, Superior Anti Fouling, Improved Fuel Efficiency and Lower Emissions.

Product Features:

Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
Corrugated Ribs Prevent Flashover
Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
Copper Core Aids in Heat Removal
Triple Seals Prevent Leakage

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$17.65

2X longer service life compared to standard copper plugs Bosch Platinum Spark Plugs are the newest member of our OE fine wire spark plug family. From the brand trusted in the world’s most advanced engines, Bosch Platinum Spark Plugs are engineered to provide you with improved ignitability and performance.

Product Features:

OE design for optimum fit and function
Fine wire design delivers improved ignitability and performance life
Center electrode is an ultra fine wire design.
Copper core provides broader heat range to resist pre-ignition
Tapered shape ground electrode reduces flame shrouding for improved combustion
Yttrium enhanced to resist wear
Nickel-plated shell with rolled threads
Ribbed insulator design

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$6.29

Spark Plug

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$18.99

NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.

Product Features:

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire iridium alloy center electrode provides consistent performance
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
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: Best for vehicles with OE fine wire iridium alloy plugs

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$26.84

The Febi Spark Plug Tube is an ideal high quality aftermarket replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:

Engineered to withstand extremes in temperatures
High profile insulation to prevent arching
Premium aftermarket replacement
Provides performance and dependability
Manufactured to meet OE specifications

BMW 550i Spark Plugs

Your One-Stop Shop For Trusted BMW 550i Spark Plugs

Essential BMW 550i Spark Plugs

DENSO – U-Groove Spark Plug: OE Performance, lasts 30K+ Miles, KJ20CR-L11 (Part No.3169)

NGK – OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, ZFR6F-11 (Part No.4291)

NGK – OE Series Laser Iridium High Ignitability Spark Plug: SPE Tip Design, SIZKBR8B8HG (Part No.91874)

Champion – Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RERX6PMCB4 (Part No.3455)

Champion – Copper Plus Spark Plug: Dependable Performance, OE Replacement, RC9MC4 (Part No.434)

Autolite – Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (Part No.5224)

Champion – Iridium Spark Plug: Maximum Performance, OE Replacement, RC10WMPB4 (Part No.9002)

Bosch – Platinum Spark Plug (Part No.F10001541154BOS)

NGK – Laser Iridium Spark Plug (Part No.F10001191231NGK)

Bosch – OE Finewire Platinum Spark Plug (Part No.F1000163622BOS)

Autolite – Spark Plug (Part No.APP5822)

NGK – OE Series Laser Iridium Spark Plug: Fine Wire Tip Design, IZFR6H11 (Part No.4294)

Febi – Febi Spark Plug Tube (Part No.F1012318333FEB)

BMW 550i Spark Plugs List

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