the rc7yc3 has superseded the rc7yc in 2007.. theoretically the -3 is improved in some way. If you check the cross reference champion/ngk you'll find different codes. I Don't have knowledge in what are different, sorry.
What is the cross reference of BPR5ES to Champion Champion RN11YC
ngk BPMR4A
Champion RZ7C
8902 cross reference plug
YES
Brp6hs
The Champion part number is {| |- | QCJ8Y |}
cross reference ngk BP4HS
The equivalent NGK plug would be B2LM
there are no listings for that conversion
Cj8y