NGK standard plugs are constructed for longer life and optimum performance. Includes (4) CR8E Spark Plugs. Thread Size: 10mm, Thread Pitch: 1.0mm, Seat Type: Gasket, Resistor Value: 5K Ohm, Reach Includes (4) CR8E Spark PlugsThread Size: 10mm, Thread Pitch: 1., 0mm, Seat Type: Gasket, Resistor Value: 5K Ohm, Reach: 19mm (3/4). NGK Spark Plug CR8E – RTT Motorcycles OEM Replacement Spark Plugs NGK 4 Pack Of Genuine - TR5-4PK Cr8eb Spark Plug Hex Size: 5/8 (16mm), Terminal Type: Threaded Stud, Overall Height: ISO, Gap:., 031 (0., 8mm). NGK 4 Pack of OEM Standard Spark Plugs, CR8E- (1275) 4PK. P. Piedmont Small Engine (2688). 99% positive feedback. $20.00. $5.39 shipping Thread Size: 10mm, Thread Pitch: 1., 0mm, Seat Type: Gasket, Resistor Value: 5K Ohm, Reach: 19mm (3/4). Includes (4) CR8E Spark Plugs.