Welcome to triggerdisc.com! Your #1 source for custom cam/crank angle sensor applications for use with standalone engine management systems!


12-tooth disc for hall effect crank angle sensor
(EVO & DSM 7-bolt)

-This disc CANNOT be used if your engine still has balance shafts installed. The disc is flat, not stamped like the factory disc, and as such does not provide the balance shaft belt with aligning support like the factory disc does.
-Please note:

  • Installation of this disc requires removing the timing belt.
  • This disc has NOT been thoroughly tested on the EVO 9 platform. We have found that the MIVEC lacks functionality with the use of this disc. As a result, we do not recommend the use of this disc on the EVO 9 unless you are not concerned with MIVEC tuning. We are currently working on a unique version of the disc specifically designed for the EVO 9, which will allow the tuner to take full advantage of the MIVEC capability with greater accuracy than the stock ECU. Release of the EVO 9 disc is TBD.
-A detailed instruction manual (PDF) will be furnished via email at the time of purchase.

$100 + S/H*


* Flat shipping & handling fee of $10 applies for U.S. orders. International orders extra.