NO.
I"ve been trying to find an answer to this question myself and belive the Autolite 3924 corresponds to the Champion RC12YC.24-7423 - Champion RC12YC Spark PlugRC12YC Champion Replaces Autolite 3924, NGK BCPR6ES..
GAP .030"
I have autolite sparks plugs ARF32M and need to know the cross reference to NGK
Champion 3071
Champion RA8HC has the same thread, seat, reach, hex size, and terminal type. I ordered a Kohler plug from Amazon and they actually shipped me this Champion Plug.
A champion RC12YC spark plug is 14mm thread diameter. The torque for this size is 18-22 foot-pounds (25 to 30Neuton·meters)
64 Autolite Replaces Champion RN11YC, NGK BPR5ES
RC12YC in Champion
champion rc12yc
Rc12yc
Rc12yc
Champion Rc12yc...Denso Q16pru-11...NKG BKR4E