Want this question answered?
According to the Champion plug web site they are both bantam height. But a different bantam height. I ran into this and found that the plug looked different where the wire connected and sealed t the plug and that was the only difference.
Champion DJ7Y (gap of 0.025")
Champion DJ7Y. Not sure of the plug gap though.
The Sear's website recommends spark plug number DJ7Y, but the brand is not listed.
the R stands for Resistor. It is a resistor plug.
This part number is for a Champion RDJ7Y spark plug. Set gap at 0.025" I bought a replacement plug, DJ7Y, at Home Depot on 10/6/13 for $2.38 + tax. The DJ7Y replaces the RDJ7Y. This plug is used for other tools such as my Ryobi trimmer and McCulloch chain saw.
The Champion dj7y, when used in a Homelite string trimmer is gapped at .025. I do not know if it is a safe bet to extrapolate from trimmer to chainsaw, but I would think so.
These are the matches to Jenn Feng 9295-320001 spark plug NGK: BPM6F AC-DELCO: CS42T AUTOLITE: 2954 BOSH: HS8E CHAMPION: DJ7Y DENSO: T20MP-U MOTORCRAFT: AF3NX PRETOLITE: 14F3N
mcculloch 14" 2.0 chain saw using champion dj7y plug....what is correct gap?