The NGK TR6IX 3689 Iridium IX Spark Plug is engineered to provide superior ignition performance for a variety of automotive applications. This spark plug features a fine wire iridium center electrode, which ensures exceptional ignitability, improved fuel efficiency, and reduced emissions. The iridium alloy center electrode offers six times the hardness of platinum, providing high durability and a consistently stable spark.

The spark plug’s design includes a tapered ground electrode, reducing quenching and resulting in better combustion and improved throttle response. The solid copper core and high-grade alumina silicate ceramic insulator provide excellent heat dissipation and dielectric strength. Additionally, the trivalent metal plating delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal.

Specifications & Features:

Model Number: TR6IX
Part Number: 3689
Electrode Material: Iridium center electrode, copper core
Heat Range: 6
Resistor: Yes, 5000 Ohm
Thread Size: 14mm x 1.25
Reach: 17.5mm (0.708 inch)
Hex Size: 5/8 inch (16mm)
Gap Size: 0.040 inch (1.0mm)
Seat Type: Tapered
Ground Electrode Tip Design: Tapered

Compatible with:

car	chevrolet camaro	ford mustang gt	Chevrolet Corvette	Ford Taurus	Ford Edge	Ford F150
model	2015	2014	2013	2005	2004	2004

SKU: TR6IX/02