Plug & Play adapter harness that adapts from Cat ADEM2 (40 Pin) chassis electronics to a Cat 3176 2YG engine. One end of the adapter harness will plug directly into the engine control harness that is coming from the firewall. The other end of the adapter harness will plug directly into the side of a Cat 3176 ECM (PEEC engine electronics).
Specifically for 3176 Caterpillar engines with a 2YG serial prefix.
NOTE: The PEEC connection is at the ECM