GreenAPU recommends installing the power unit behind the passenger side diesel tank. A minimum of 26 inches of free space along the frame is recommended. The power unit may also be mounted in a different location if space is available. Make sure that the unit can be accessed for service and sufficient clearance is present to open the front cover. If possible, avoid mounting the unit underneath the truck cabin or sleeper for safety reasons. Also, avoid locations near any hot components, such as the DPF system. In some cases fairing, fender, or diesel tank modifications or relocation may be required to fit the unit.