PLEASE NOTE: This is an exchange listing. You will receive a prepaid label in the box. Simply put your old CPC in the box and ship it back to us to receive a partial refund of $500 to your Amazon account AND to activate your warranty. We do NOT accept any aftermarket modules and will not issue a partial refund for aftermarket or critically damaged modules. This CPC4 exchange offers a completely rebuilt and pre-programmed replacement CPC compatible with 2014-2019 Freightliner Cascadia.These modules are notorious for having No start / Intermittent start, Dead throttle / Intermittent throttle, CPC reads as a different module (reads as CPC2, TCM, etc.), CPC Hardware Failure Fault Code SPN 609 FMI 12.