NGK 3689 TR6IX Iridium IX Spark Plug

Fits Vehicle 

• 2009-2015 Cadillac CTS V
• 2012-2015 Chevrolet Camaro ZL1
• 2009-2013 Chevrolet Corvette ZR1
• 1999-2003 Ford F-150 Lightning
• 2004 Ford F-150 Heritage SVT Lightning

NGK IX Iridium Series plugs were designed specifically for the performance enthusiast. Fine wire center electrode ensures high durability and a consistently stable spark. Iridium alloy has an extremely high melting point, perfect for today’s high-tech, high performance engines.

• 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

PRODUCT SPECS

Shell

• Thread Diameter – 14mm
• Thread Pitch – 1.25mm
• Seat Type – Tapered
• Reach – 18mm (.709″)
• Hex Size – 5/8″ (16mm)
• Terminal Type – Solid
• Overall Height – ISO
• Gap – .039″ (1.0mm)

Center Electrode

• Material – Iridium
• Type – Fine Wire
• Size – 0.6mm
• Projection – Projected

Ground Electrode

• Material – Nickel
• Type – Standard
• Shape – Taper Cut
• Quantity – 1

Specifications

• Resistor – Yes
• Resistor Value – 5k Ohm
• Heat Range – 6
• Torque Specs – Cast Iron: 10.8-18 lb. ft. Aluminum: 7.2-14.5 lb. ft.

Part Information

• Brand – NGK/NTK
• Warranty – 60 Days
• Longevity – 50k Miles

Brand

NGK