Includes (8) 3923 Spark Plugs. Thread Diameter: 14 mm, Reach: 3/4 in, Resistor: Suppressor, Seat Type: Gasket. Genuine OEM Autolite Part. Electrode Tip Material: Resistor, Tip Configuration: Power, Wrench Diameter: 5/8 in. Copper core improves resistance to fouling. . Compatible with the Following: Bosch: 0242235668, 7410, 7413, 7555, 7556, 7955, 7956, F03DAR, F04DAR, F6DC, F6DCO, F6DTC, F6DTC-1, F7LC0R2, F7LDCR, F7LTCR, F8DC, FGR6KQC, FGR6KQE, FR6LDC, FR7D, FR7DC, FR7DCO, FR7DCX, FR7DTC, FR7DX, FR7LDC, FR8DCX, FR8DCY, Champion: 2095, 335, 344, 345, 346, 426, 430, 4430, C9YC, OE002, OE006, OE039, RC10YC, RC10YC4, RC12YC, RC12YC5, RC14YC, RC281YC, RC8YC4, RC9Y, RC9YC, RC9YC4, RC9YC5, RC9YCC, RC9YCE, RC9YCN4
