NGK 3923 BPR8ES Marine Boat Standard Spark Plug for Mercruiser 390 GM 8 Cyl Inboard

NGK 3923 BPR8ES Marine Boat Standard Spark Plug for Mercruiser 390 GM 8 Cyl Inboard

  • Sale
  • $5.95
  • Standard Spark Plug
  • Resistor: Yes
  • Size: 2.5 mm
  • Heat Range: 8
  • Type: Standard
  • Material: Nickel
  • Seat Type: Gasket
  • Overall Height: JIS
  • Thread Size: 14 mm
  • Gap: .031" (0.8 mm)
  • Projection: Projected
  • Reach: 19 mm (3/4")
  • Longevity: 30k Miles
  • Thread Pitch: 1.25 mm
  • Resistor Value: 5K Ohm
  • Hex Size: 13/16" (21 mm)
  • Triple seals prevent leakage.
  • Terminal Type: Removable Nut
  • Copper core aids in heat removal.
  • Corrugated ribs prevent flashover.
  • Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.
  • Trivalent metal plating provides superior anti-corrosion and anti-seizing properties.
  • Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer.
  • Manufacturer: NGK 
  • Model Number: 3923
  • Part Number: BPR8ES
  • For use with: 
    • Motorcycle - Aprilia, Cobra, Yamaha
    • Inboard Mercruiser 390, Inboard 8 Cyl GM Big Block
    • Automotive - 1983-1990 Mesarati, 1970-1989 Porche, 1964-1973 Ferrari
    • Recreation- Polaris, Freedom, Hurricane, PRO 1200, SL 1050, SL 700, SL 780, SL 900, SLH, SLT 780, SLTH, SLTX, SLX, SLX 780, VIRAGE