R=resistor
N=shell design dimensions (14mm, 3/4, 13/16)
12=heat range (automotive range)
Y=firing end design (standard projected core nose)
C=copper cored (copper plus design)
The only difference between them is one is a copper cored resistor type.
Otherwise, they are the same plug.
----- Original Message -----
From: "Henry Stike" <stiker2126@yahoo.com>
To: "Spitfire Mailing List" <spitfires@autox.team.net>
Sent: Saturday, September 09, 2006 6:56 PM
Subject: Difference in Spk Plgs
> anybody know the difference between a N-12Y and a
> RN12YC?
=== This list supported in part by The Vintage Triumph Register
=== http://www.vtr.org
|