BrandDenso
Part Number5604
ModelVK20
Product LineIridium Tough
Center Electrode MaterialIridium
Center Electrode TypeFine Wire
Center Electrode Size0.4mm
Ground Electrode MaterialPlatinum
Ground Electrode TypeStandard
Thread Diameter14mm
Thread Pitch1.25mm
Reach19mm (3/4")
Hex Size5/8" (16mm)
Seat TypeGasket
Terminal TypeRemovable Nut
Gap0.043" (1.1mm)
ResistorYes
Resistor Value5k Ohm
Heat Range20
Torque Specs (Cast Iron)26-30 lb. ft.
Torque Specs (Aluminum)15-22 lb. ft.
Longevity80k-100k Miles
Warranty12 Months
PlatingBurnished nickel
Insulator MaterialPurified alumina powder
Seal TypeCopper-glass seal
Thread FeatureMachine rolled threads
Insulator FeatureFive rib insulator
Pre-firing100% pre-fired