NGK Iridium Spark Plug Box of 4 (LFR5AIX-11) (ngk4469)

This is the NGK Iridium Spark Plug Box of 4 (LFR5AIX-11). Part ngk4469. 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: .044
• Ground Electrode Quantity: 1
• Hex Size: 5/8
• Insulator Height: 50.50
• Manufacturer Heat Range: 5
• Seat Type: Flat
• Reach: 26.5
• NGK part number: ngk4469

Fitment

• Vehicle: Dodge Charger / Challenger (LX), Nissan 350Z (Z33)
• Years and trims on file: 2009-2020 Dodge Challenger R/T; 2012 Dodge Challenger R/T Classic; 2015-2016 Dodge Challenger R/T Plus; 2016 Dodge Challenger R/T Plus Shaker; 2016 Dodge Challenger R/T Shaker; 2017-2018 Dodge Challenger T/A; 2017-2018 Dodge Charger Daytona; 2012-2020 Dodge Charger Pursuit; 2009-2020 Dodge Charger R/T; 2015-2016 Dodge Charger R/T Road & Track; 2009-2013 Dodge Charger SE; 2005 Nissan 350Z 35th Anniversary Edition; plus 6 more on file
• Application listing: NGK Iridium Spark Plug Box of 4 (LFR5AIX-11)
• 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.
• NGK parts are supplied through our distributor. We confirm availability and lead time with you 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.