NGK 7447 BUZ8H Surface Gap Spark Plug

Excellent performance and value for money

The NGK Surface Gap Spark Plug is nearly immune to pre-ignition, delivering optimum performance and great value for money. The trivalent metal plating provides superior anti-corrosion and anti-seizing properties, while corrugated ribs prevent flashover. It also features a pure alumina silicate ceramic insulator, providing superior strength and better heat transfer. The copper core aids in heat removal and the triple seals prevent leakage. For reliable performance, grab the NGK Surface Gap Spark Plug.

NGK Surface Gap Spark Plug Features:

• Model: 7447 BUZ8H
• 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
• Warranty: 60 days

NGK Surface Gap Spark Plug Specifications:

Shell

• Thread diameter: 14mm
• Thread pitch: 1.25mm
• Seat type: Gasket
• Reach: 12.7mm
• Hex size: 21mm
• Terminal type: Solid
• Overall height: ISO
• Gap: 0.4mm

Center Electrode

• Material: Nickel
• Type: Standard
• Size: 2.5mm
• Projection: Non-Projected

Ground Electrode

• Material: Nickel
• Type: Surface Discharge

Specifications

• Resistor: Yes
• Resistor type: Inductive
• Resistor value: 35 Ohms
• Heat range: 8
• Torque specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.

Fitment

• Marine (Outboard):
  
  • Evinrude: 185 HP
  • Johnson: 155 HP, 185 HP, 200 HP
  • Mercury: 200 HP, 220 HP
• Marine (Inboard):
  
  • Mercury: M2 SPORT JET, SPORTJET 175XR