NGK Spark Plug BU8H 6431

Price: $3.79
  • SKUBU8H
In stock - 5 units available.
- +
Other products by NGK

NGK Spark Plug BU8H 6431

NGK's Standard Plugs are Constructed for Longer Life and Optimum Performance.

    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

Body

    Thread Size: 14mm
    Thread Pitch: 1.25mm
    Seat Type: Gasket
    Resistor: No
    Reach: 12.7mm (1/2")
    Hex Size: 13/16" (21mm)
    Terminal Type: Solid
    Overall Height: ISO
    Gap: .016" (0.4mm)

Center Electrode

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

Ground Electrode

    Material: Nickel
    Type: Surface Discharge

Specifications

    Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.
    Brand: NGK
    Heat Range: 8
    Longevity: 30k

Outboard Application

  • Mariner 275 hp 275 3.4L 1994-1991
  • Mariner 265 hp 2.5L EFI 1997
  • Mariner 260 hp 2.5L EFI 1998-1995
  • Mariner 250 hp 250 3.4L 1990-1989
  • Mariner 225 hp 220 Super Magnum EFI 1997
  • Mariner 220 hp 220 Magnum EFI 1988-1987, 200 1999-1979, 200 EFI 1999-1998, 200 Magnum EFI 1997-1989, 200 Super Magnum EFI 1997
  • Mariner 175 hp 175 1998-1978, 175 EFI 1999-1998, 175 Magnum EFI 1997-1991, 175 SKI 1994-1989
  • Mariner 150 hp 150 1999-1979, 150 EFI 1999-1997, 150 Magnum, 150 Magnum EFI 1997-1993, 150 Magnum II 1991-1988, 150 Magnum III 1997-1992, 150 Work
  • Mariner 140 hp 140 Jet 1999-1995
  • Mariner 135 hp 135 1999-1986, 135 Marathon 1999-1986, 135 Work 1993-1986
  • Mariner 105 hp 105 Jet6-cyl. 1999-1995
  • Mariner 25 hp 25 1992
  • Mercury 300 hp 2.5L S3000 EFI 1997, 3.4L 1988-1984, 300 1983-1981
  • Mercury 275 hp 275 1994-1989
  • Mercury 265 hp 2.5L SS Drag EFI 1997
  • Mercury 260 hp 2.5L Offshore 1997-1995
  • Mercury 250 hp 250 3.4L 1990-1989
  • Mercury 245 hp 2.5L 1996-1995
  • Mercury 225 hp 225 1981-1980
  • Mercury 200 hp 200 1999-1979, 200 EFI 1999-1998
  • Mercury 175 hp 175 1998-1979, 175 EFI 1999-1998, 175 XRi 2002-1991
  • Mercury 150 hp 150 1984-1979, 150 1999-1991, 150 EFI 1999-1998, 150 Marathon 1988-1985, 150 XR-2 2002-1985, 150 XR-4 2002-1985, 150 XR-6 1997-1992, 150 XRi 2002-1993, 1500 1978
  • Mercury 140 hp 140 Jet 1999-1995
  • Mercury 135 hp 135 1999-1986
  • Mercury 105 hp 105 Jet 1998-1995
Write a Review