NGK 6743 BMR4A Spark Plug Blister Pack

• 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 Diameter14mm
• Thread Pitch1.25mm
• Seat TypeGasket
• Reach9.5mm (3/8")
• Hex Size3/4" (19mm)
• Terminal TypeRemovable Nut
• Overall HeightBantam
• Gap.028" (0.7mm)

• Center Electrode
• MaterialNickel
• TypeStandard
• Size2.5mm
• ProjectionNon-Projected

• Ground Electrode
• MaterialNickel
• TypeStandard
• Quantity1

• Specifications
• ResistorYes
• Resistor Value10k Ohm
• Heat Range4
• Torque SpecsCast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.

• Part Information
• BrandNGK/NTK
• Warranty60 Days
• Longevity30k Miles

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