Thread Size . M12*1.25
Reach . 27.5 mm
Hex Size . 14 mm
Resistor . Yes
Center Electrode Material . Iridium
Ground Electrode Material . Platinum
SILZKBR8C8 0242145541 12120038894 12120038896 12120039664
12120040581 ZR5TPP330 ZR5TPP330A ZR5TPP339OES
Should I have oil on my spark cricket doodle?
If the gasket is not sealed around the spark plug well it will leak oil into that area. It also could be a faulty valve cover (cracked), but it is more likely that the gasket is the problem. In my case it was a bad spark plug well gasket. Oil gets inside the tube and causes cylinder misfire.