Fits Big Twin 1948-1974, KH+XL 1954-1978
- porcelain / steel
- thread: M14 x 1.25
- thread length: 7/16 ”
- wrench size: 13/16 ”
- connection thread: M4
- heat range: manufacturer-code H8C corresponds to HD-code 4
- replaces OEM 32307-58, and 31629-78
- gross weight: 60 g
Champion 587 H8C, Spark plug
