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NGK Iridium Racing Spark Plug Heat Range 9 - NGK-R7434-9NGK IRIDIUM SPARK PLUG 4658 14mm x 3 4" Reach, 5 8" Hex Part Number: NGK R7434 9 NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Fine wire iridium tipped center electrode and platinum tipped ground electrode improve ignitability, increase durability and enhance anti fouling capabilities. Special insulator nose configurations improve throttle response. Corrugated ribs prevent flashover. Pure alumina silicate ceramic
NGK IRIDIUM SPARK PLUG 4658
14mm x 3/4" Reach, 5/8" Hex
Part Number: NGK-R7434-9
NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Fine wire iridium tipped center electrode and platinum tipped ground electrode improve ignitability, increase durability and enhance anti fouling capabilities. Special insulator nose configurations improve throttle response. 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.
Specifications:
Shell
-Thread Diameter: 14mm
-Thread Pitch: 1.25mm
-Seat Type: Gasket
-Reach: 19mm (3/4")
-Hex Size: 5/8" (16mm)
-Terminal Type: Solid
-Overall Height: ISO
-Gap: .028" (0.7mm)
Center Electrode
-Material: Iridium
-Type: Fine Wire
-Size: 0.6mm
-Projection: Non-Projected
Ground Electrode
-Material: Platinum
-Type: Slant
-Quantity: 1
Specifications
-Resistor: Yes
-Resistor Value: 5k Ohm
-Heat Range: 9
-Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.