Steve, the part numbers for boost pressure sensor are for C-12 engine S/N.
Myself would not buy anything but Cat parts from Cat Dealer. The cost for
boost pressure sensor this past year $ 137.00 to $140. At Cat Dealer price
will vary some. Buying aftermarket parts that sell for less money and installing
on a Cat engine is a only going to cause problems. I have ran into this many
times, Cat ET reading engine ECM read change in values. This boost pressure
sensor is part of a group of 5 volt sensors that go direct to ECM that require
Correct voltage at all times. Change in the 5 volt in one sensor will also change
Values in others sensors and change in engine operations also.
Dave Atherton Retired Cat mechanic
