NGK Single Iridium Spark Plug Box of 4 (UR45IX) (ngk7559)

This is the NGK Single Iridium Spark Plug Box of 4 (UR45IX). Part ngk7559. Ignition parts (coils, plugs and wires) deliver a strong, consistent spark.

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.

Features and benefits

• RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
• Fine iridium tip ensures durable and consistent spark
• Trivalent metal plating for superior anti-corrosion and anti-seizing properties
• Outstanding acceleration, high fuel efficiency and durability

Product details

• Part type: Ignition
• Brand: NGK
• Resistance: 5000.0
• Ground Electrode Tip Design: Taper Cut
• Ground Configuration: Standard
• Ground Electrode Core Material: Nickel
• Electrical Terminal Type: Non-Removable Nut
• Center Electrode Core Material: Copper
• Center Electrode Tip Material: Iridium
• Pre-Gap Size: .060
• Ground Electrode Quantity: 1
• Hex Size: 5/8
• Insulator Height: 55.00
• Manufacturer Heat Range: 4
• Seat Type: Tapered
• Reach: .46
• NGK part number: ngk7559

Fitment

• Vehicle: Ford Mustang (Fox)
• Application listing: NGK Single Iridium Spark Plug Box of 4 (UR45IX)
• Check the vehicle, model years, engine and trim above against your car before ordering. Not sure? Ask us and we will check it against your VIN.

Shipping & returns

• Orders are processed within 1–3 business days; standard delivery is 3–7 business days within the United States.
• Special order: this item is ordered from the manufacturer after you place your order. It is not shipped from stock and can take several weeks. We email you the expected ship date after you order.
• We currently ship within the U.S. only. See our Shipping Policy.
• 30-day returns on unused parts in original packaging — see our Return Policy.

Installation at Team ANBD

Team ANBD is a performance shop in Andover, New Jersey. We can align or corner-balance the car, and prep track cars. Book an appointment or ask us about installation and fitment before you order.