Race Spark Plug 5/8" Hex Tapered 17.5mm Reach

Spark Plug Specifications

• Plug Type: RS57C
• Seat Type:Tapered
• Hex Size (Inch): 0.625
• Hex Size(MM): 15.880
• Thread Size (Inch): 0.551
• Thread Size (MM): 14.000
• Thread Reach (Inch): 0.708
• Taper Diameter (Inch): N/A
• Installed Height (Inch): N/A
• Insulator Projection (Inch): N/A
• Gap Style: J Gap
• Gap (Inch): 0.023-0.028
• Gap (MM): 0.58-0.71
• Center Electrdoe Diameter (Inch): 0.1
• Center Electrode Material: Nickel Copper Alloy
• Ground ElectrodeMaterial: Nickel Copper Alloy
• Ground ElectrodeQuantity: 1
• Classification: Champion Racing Plugs
• Resistor plug: No
• Resistor Type: N/A
• Manufature Heat Range: 63
• Electrical Terminal Type: Non-Removable Nut