Description
The NGK CR9EK (4548) is a high-performance, twin-ground electrode spark plug with a 10mm thread diameter, 19mm (3/4″) reach, 16mm (5/8″) hex, and a 0.7mm gap. Known for durability in motorcycles and ATVs, it features a 5kOhm resistor, gasket seat, and a heat range of 9.
