BRISK Silver Racing GR17YS Spark Plug 14mm thread, .708"(19mm) reach, 5/8'(16mm) hex, tapered seat, projected tip, resistor, fine wire 1.5mm Silver center el., tapered ground electrode. 

Params

• Thread 14mm
• Reach 18mm- .708
• Hexagon 16mm-5/8
• Seat tapered
• Design Silver Center Electrode
• Resistor yes
• Projected yes