Includes (24) 63 Spark Plugs. Thread Size: 14mm Thread Pitch: 1.25mm Seat Type: Gasket Reach: 19mm (3/4 ). Hex Size: 13/16 (21mm) Terminal Type: Removable Nut. Center Electrode: Material: Nickel Type: Standard Projection: Projected. Copper core improves resistance to fouling. Compatible with the Following: Bosch: 7591 7592 7594 7595 7992 7995 W200T30 W200TR30 W215T30 W5D1 W5DC W6D W6D1 W6DC W6DI W7DC W7DTC W8DC W8DTC WR5DC WR6D WR6DC WR7DC WR7DTC WR7F Champion: 2105 300 301 332 415 813 N11YC N65Y N66Y N89GY N89Y N9Y N9YC N9YC4 OE006 RN11YC4 RN9GY RN9Y RN9YC RN9YC4 UN10Y UN9Y XN9Y NGK: 1034 1128 1263 2023 2212 2489 2712 2817 3172 3785 3995 4007 4008 4539 4680 5428 6261 6411 6427 7031 7131 7133 7226 7333 7334 7532 7632 7726 7727 7822 7824 7834 913 914 915 923 924 929 933 BP5EA-L BP5EA-L-11 BP5EAL BP5EAL-11 BP5ES BP6EK-A BP6EKA BP6EQ-13 BP6ES BP6ES-11 BP6ES-13 BP6ET BP6EV BP6EY BP6EY-11 BP7ES BP7ES-11 BP7EV BPR5EA-L BPR5EA-L-11 BPR5EAL BPR5EAL-11 BPR6E BPR6EK-A BPR6EKN BPR6ES BPR6ES-11 BPR6EY BPR6EY-11 BPR7ES BPR7ES-11 BUR6EA BUR6EA-11 BUR6ET BUR7EA-11 GR4 GR5