Nevada-based Black Rock Systems, LLC along with partner Yanmar America Corp. recently unveiled an updated model of their auxiliary power unit. The oil change interval for the new APU has been extended to 1,000 hours and the YANMAR engine warranty has also been increased to 3 yr./4,000 hr.
The frame-mounted, 455- to 510-lb. APU is designed to deliver 26,000 Btu/hr. of cooling/ heating without idling the truck's engine. www.blackrockapu.com