Plug & Play adapter harness that adapts from Cat 3126B, 3126E, C7 or C9 70 Pin engine electronics to Cat 3116 or 3126 with 40 Pin engine electronics. One 70 pin 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 40 Pin ECM.
Common Cat 3126B/3126E/C7 70 Pin ECM Prefixes:
- 3126B - 7AS, 8YL, 9SZ
- 3126E - CKM, BKD, HEP
- C7 - KAL, WAX, SAP
- C9 - 9DG, LFE
Common Cat 3116/3126 40 Pin ECM Prefixes:
- 3116 - 8WL
- 3126 - 1WM
NOTE: The 70 Pin connection is at the ECM
