CETRA™ EXTENSIONS PERMIT THE USE
OF LOWER COST TOP THREADED SPARK
PLUGS WITH BG'S NEW CETRA LEADS. . .
And BG's Unique Cetra™ extensions extend plug
Teflon® coated Viton "O" Ring seals tightly on the
spark plug insulator. Because the voltage necessary to
"flashover" the spark plug insulator is increased, spark
plugs will operate at larger gaps that previously resulted in plug
Greatly reduces spark plug cost by permitting the use of top
threaded spark plugs instead of shielded spark plugs.
High alumina ceramic insulator prevents dielectric breakdown.
May be used with Cetra™ leads or conventional shielded leads.
HOW TO ORDER
Select desired length, spark plug, and lead
termination and place the corresponding
"TYPE" numbers here:
SPARK PLUG MODEL
RTM77N, RTM79, ALL TOP
Standard length terminal
Extended length terminal
*Extension has a female terminal on top that accepts spark plug leads
with (1) standard male terminals such as P/N's M531, 21011 &
21981-1, or (2) extended male terminals such as 21143 & 21102.
See page 45.