there is no br9ecss-5 the right number is br9ecs-5 stock number 6669 for .18" gap, the -5 stands for a hotter burning plug which is what ski-doo and the dealers have told me and everyone else, i also just bought a whole box of these, i dont what the sdi plug numbers are.
There is a BR9ECSS.... BR9ECS SOLID CAPS (not the silly screw caps)
and no the - 5 is not a hotter burning plug...the 9 is the heat range...
the -5 is the gap
and the box you bought is not gapped to .018...they are gapped to .020
B = thread diameter (14mm)
R = construction (resistor type)
9 = heat range (2 being the hottest...10 being the coldest)
E = Reach (19mm 3/4")
C = Firing end (dual ground)
S = Firing end (standard Center electrode)
S = Solid Cap
- 5 = Gap
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