NGK BR9EIX 3981 Iridium IX Spark Plug for DSM & Evo 1-8

NGK's Iridium IX spark plugs are commonly used with higher boost builds in the Evo 1-8 and DSM. Sold individually. Price is for one plug, please adjust quantity as needed.

Vehicle Fitment:
Mitsubishi 4G63
1992-2005 Evolution I-VIII
1990-1999 Eclipse GST/GSX
1990-1998 Talon TSi
1990-1994 Laser RS
1991-1993 Galant VR4

Part Number: BR9EIX
Stock Number: 3981
Heat Range: 9
Thread Size: 14mm

More Info:
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

Shell:
Thread Size: 14mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Resistor Value: 5K Ohm
Reach: 19mm (3/4")
Hex Size: 13/16" (21mm)
Terminal Type: Removable Nut
Overall Height: ISO
Gap: .031" (0.8mm)

Center Electrode:
Material: Iridium
Type: Fine Wire
Size: 0.6mm
Projection: Non-Projected

Ground Electrode:
Material: Nickel
Type: Standard
Shape: Taper Cut
Quantity: 1

Torque Specs:
Cast Iron: 18-25.3 lb. ft.
Aluminum: 18-21.6 lb. ft.