8 Pack Genuine Authentic NGK 3690 Spark Plugs Iridium IX TR7IX

$50.38

14 in stock

Thread Diameter: 14 mm
Thread Pitch: 1.25 mm
Seat Type: Tapered
Reach: 18 mm (.709")
Hex Size: 5/8" (16 mm)
Terminal Type: Solid
Overall Height: ISO
Gap: .039" (1.0 mm)
Center Electrode
Material: Iridium
Type: Fine Wire
Size: 0.6 mm
Projection: Projected
Ground Electrode
Material: Nickel
Type: Standard
Shape: Taper Cut
Quantity: 1
Resistor: Yes
Resistor Value: 5k Ohm
Heat Range: 7
Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 7.2-14.5 lb. ft.
Electrode Material: Iridium
Nominal Gap: 1 mm

Condition:
Brand: Brand: NGK
SKU SKU: 3690-8K
Mfg Part #: 3690

Description

3690 / TR7IX - Iridium IX Spark Plug by NGK. 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.

Additional information

Weight .83 lbs
Brand

NGK

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