Rotary 2504. 

SR-1

Details about Champion cj8:

Threaddiameter: 14mm
Threadreach: 9.5mm
Seattype: flat
Hexsize: 19mm
Tipconfiguration: non projected
Construction: Standard construction
Terminaltype: Removable
Replacement spark plugs for Champion cj8:
AC Delco C47W
AC Delco CS41
AC Delco CS42
AC Delco CS45
AC Delco CS49
Autolite 235
Autolite 254
Autolite 255
Autolite 258
Autolite 2995
Autolite 2996
Autolite XST255
Bosch W230T30
Bosch WK145T1
Bosch WK175T1
Bosch WKA145T3
Bosch WS7E
Bosch WS8E
Bosch WS9EC
Bosch stk 7542
Bosch stk 7543
Brisk P17
Champion CJ11
Champion HT10J
Champion J91
Champion JT8
Champion TJ8J
Champion UCJ7G
Champion UCJ8G
Champion stk 843
Denso T20M-U
Denso W14M-U
Denso W14M-U10
Denso W14M-US
Denso W14MR-U
Denso W20M
Denso W20M-U
Denso W20M-US
Denso W22M-U
Denso W22M-US
Denso stk 6015
Denso stk 6016
Denso stk 6019
Denso stk 6022
Denso stk 6026
Denso stk 6034
Denso stk 6036
Denso stk 6039
Denso stk 6048
Eyquem 500CT
General Motors 5612891
General Motors 5613166
General Motors 5613234
General Motors 5613322
KLG FSC50
LD L6
Mopar 4419643
Motorcraft A3NX
Motorcraft A7N
Motorcraft A7NU
Motorcraft A7NX
Motorcraft AR7N
Motorcraft stk 118
Motorcraft stk 94
Newstar L5C
NGK BM4A
NGK BM6
NGK BM6A
NGK BM6A10
NGK BM7
NGK BM7A
NGK BMR4A
NGK stk 5628
NGK stk 5728
NGK stk 5921
NGK stk 6321
NGK stk 6521
NHSP L6
Prestolite 14-11N
Prestolite 14-11X
Prestolite 14-3N
Prestolite 14-7N
Torch L6C

Southland A200730

Fits: (this plug fits many products including)

Huskee Cultivator  MC43