Denso 4065 W31FS Nickel Spark Plug

Denso spark plugs are 100% pre-fired to assure the highest quality possible. Machine rolled threads prevent seizing or cross threading during installation and removal. Purified alumina powder insulator provides exceptional strength and thermal conductivity. Five rib insulator prevents flashover. Copper-glass seal bonds center electrode and insulator for a gas-tight seal.

• Shell
• Thread Diameter14mm
• Thread Pitch1.25mm
• Seat TypeGasket
• Reach12.7mm (1/2")
• Hex Size13/16" (21mm)
• Terminal TypeRemovable Nut
• Overall HeightJIS
• Gap.028" (0.7mm)

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

• Ground Electrode
• MaterialNickel
• TypeStandard
• Quantity1

• Specifications
• ResistorNo
• Heat Range31
• Torque SpecsCast Iron: 26-30 lb. ft. Aluminum: 15-22 lb. ft.

• Part Information
• BrandDenso
• Warranty12 Months
• Longevity20-30k Miles

Automotive

Sorry, no automotive applications are associated with this part.

Powersports

• 1971
  • Kawasaki
    • F5 Base Verify fitment
• 1970
  • Kawasaki
    • F5 Base Verify fitment

Non-Automotive

Sorry, no non-automotive applications are associated with this part.