NGK 4469 Iridium IX Spark Plug LFR5AIX11

4469 LFR5AIX11 Iridium IX Spark Plug by NGK. Designed for performance enthusiasts who want extreme ignitability, improved throttle response and superior anti-fouling, these spark plugs are a great option for modified engines and appropriate replacement for OE spark plugs, where recommended. With a 0.6 mm laser welded iridium tip and taper cut ground electrode, these plugs provide more area for flame expansion for quicker starts, improved performance, and better efficiency.

Designed for outstanding acceleration, high fuel efficiency, and durability
Ensure a consistently stable spark
Extremely high melting point, perfect for today’s high-tech, high-performance engines
Extremely resistant to heat, corrosion and electrical wear
Match OE fit and quality
0.6 mm laser welded iridium tip
Tapered ground electrode
Manufactured using triple-gasket sealing process to prevent leakage through the shell
Alumina silicate insulator for strength and optimal heat transfer
Cold-rolled threads for easier removal and installation
Corrugated ribs eliminate misfire causing “flashover”
Trivalent metal plating
Last 40 to 50 thousand miles

Thread Diameter: 14mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Reach: 26.5mm (1.04")
Hex Size: 5/8" (16mm)
Terminal Type: Solid
Overall Height: ISO
Gap: .043" (1.1mm)
Center Electrode
Material: Iridium
Type: Fine Wire
Size: 0.6mm
Projection: Projected
Ground Electrode
Material: Nickel
Type: Standard
Shape: Taper Cut
Quantity: 1
Resistor: Yes
Resistor Value: 5k Ohm
Heat Range: 5
Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.
Electrode Material: Iridium
Insulator Type: Projected
Nominal Gap: 1.1 mm

• Mfg Part No: 4469 LFR5AIX11
• Related Part No: 4469 LFR5AIX11