This NGK Laser Spark Plug provides superior ignitability and long service life, with a fine wire iridium tipped center electrode and platinum tipped round electrode to ensure slow wear rate, improve fuel efficiency and lower emissions.

This spark plug features trivalent metal plating for superior anti-corrosion and anti-seizing properties, as well as corrugated ribs to prevent flashover.

It also includes a pure alumina silicate ceramic insulator to provide superior strength and better heat transfer. Additionally, a copper core aids in heat removal and a triple seal prevents leakage.

Product Features:

  • Laser welded tips
  • Trivalent metal plating
  • Corrugated ribs 
  • Pure alumina silicate ceramic insulator
  • Copper core
  • Triple seals
Shell Specifications Center Electrode Ground Electrode
Thread Size: 14mm Heat Range: 4 Type: Fine Wire Type: Standard
Hex Size: 5/8" (16mm) Brand: NGK Material: Iridium Material: Platinum
Reach: 17.5mm (.689") Longevity: 80-100k Size: 0.6mm  
Seat Type: Tapered   Projection: Projected  
Gap: .059" (1.5mm)      
Terminal Type: Solid      
Resistor: Yes      
Overall Height: ISO      
Thread Pitch: 1.25mm      
Resistor Value: 5K Ohm
SKU NGK-ITR4A15
Barcode # 87295155998
Shipping Weight 0.0550kg
Shipping Width 0.030m
Shipping Height 0.020m
Shipping Length 0.090m
Unit Of Measure ea

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