NGK BPR9ES vs. BR9ES

[Poleman]

I understand the 'P' stands for Projected Insulator Type. What exactly is this?
Can a person use the BR9ES safely if the sled came with BPR9ES plugs?

 

[Polarismaster26]

Napa was telling me something about this with my lawn mower and he said it didn't matter. But yea i would check for sure and get more info with a sled.

 

[POLZIN]

what sled do you have ? tHE BPR9ES is the replacement for a Champion RN57YCC plug that comes in most Polaris sleds stock. Yes the P does me protruded electrode . The BR9ES will not run well.

 

[Surly1]

The "P" does stand for projected tip. The electrode does stick out a little farther. You cannot swap the BR9ES for a BPR9ES (yes the will thread into the same hole). The electrode of the BR9ES will not reach far enough down into the head, thus not giving you a very strong spark for ignition. Your sled will run, but it will run like crap (I had a dealer swap them out one time without me knowing when it was in for some warranty work, they were out of the Champion plugs).