Engine installation harness for installing a Caterpillar 40 pin engine (ADEM2 engine electronics) into a Pre-NAMUX 1994-1997 Peterbilt truck with Caterpillar 40 Pin ADEM2 chassis electronics.
The Firewall Connector on this harness uses an Aluminum Connector. Peterbilt trucks with a Plastic Firewall Connector use Kustom Truck PN: 19105033-1
NOTE: This harness is only compatible with a Caterpillar 40 Pin ADEM2 based Peterbilt Pre-NAMUX (analog) electronics chassis. If you are uncertain of your exact chassis electronics please call for fitment confirmation.