911 Carrera Coupe F6-3164cc 3.2L (1984)
Spark Plug: Customer Interest
Ignition System - Radio Interference
Subject
Resistor Spark Plugs
Part Identifier 28 70
Applies To
911
CARRERA
1984
Group
28
Key Points
Factory installed resistor spark plugs
C
Number
84-06
June 21, 1984
To eliminate radio interference from secondary ignition system, resistor type spark plugs have been installed in production as of:
December 20, 1983 Engine no. 63E02294
Note Standard plugs were installed in production from Engine no. 64E03810 to 64E04622
Resistor type plugs:
Bosch
WR7DC
Beru
14R7DU
Champion
RN7YC
These spark plugs can be installed on earlier produced vehicles, however only the Champion version is currently available as a spare part; part no. ZVP
120 074C
CAUTION
Pan numbers are for reference only. Always check with your Parts Department for latest information.
