Originally Posted by
jiggityjosh
Hey guys, according to the NGK site, the only difference between a Bxxxx spark plug and a BRxxxx spark plug is the hex size. The thread size is the exact same.
With that being so, would a Bxxxx spark plug work the same as a BRxxxx spark plug?
Here is a link to the site that explains what the spark plug numbers mean...
http://www.ngksparkplugs.com/docs/te...bols_plugs.pdf
The way I read the chart, the only difference between a "B" and a "BR" is the "BR" is a resistor type plug. The hex size and the thread side are the same.
RL