DENSO NICKEL SPARK PLUGS

Harley OEM factory spark plugs
U-Groove Ground Electrode Promotes Ignitability and Decreases Quenching
Fully Projected Insulator Reduces Carbon Fouling
Machine Rolled Threads Prevent Seizing or Cross Threading During Installation and Removal
100% Pre-Fired to Assure the Highest Quality Possible
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

Plug Specifications

Thread Size: 12mm
Hex Size: 5/8 (16mm)
Reach: 19mm (3/4)
Seat Type: Gasket
Gap: .028 (0.7mm)
Heat Range: 22
Terminal Type: Solid
Resistor: Yes
Brand: Denso


Center Electrode

Type: Standard
Material: Nickel
Projection: Projected


Ground Electrode

Type: U-Groove
Material: Nickel
Quantity: 1

FITS:

TC 99-17 + XL 86-22

COUNTRY OF ORIGIN:

NA

Disclaimer: Qualified Manufacturer Declared Replacement Part means any aftermarket part intended to replace an original equipment emissions related part and which is functionally identical to the original equipment part in all respects which in any way affect emissions (including durability), or a consolidated part, that has been evaluated and declared by the manufacturer to meet this definition and carry this categorization and designation label. This manufacturer has declared in writing that it has documentation, based upon sound engineering judgment, indicating the replacement part does not reduce the effectiveness of any required emission control device and it does not cause the modified vehicle/engine/ equipment to exceed applicable emissions standards for that make/model/year fitment(s) advertised