4J Compact Power Unit
https://www.isuzuengines.com/4J-Compact-PU/
The Isuzu 4J Compact Power Unit delivers 70 hp (52 kW) of Tier 4-compliant diesel power in a compact, integration-friendly package. Designed for OEMs that need more power in less space, it combines a shallow oil pan, lower-mounted isolated air cleaner, compact radiator package, and flexible pedestal mounting to reduce footprint and improve enclosure flexibility. Comparable in size to larger 4L-Series power units while offering more horsepower, the 4J Compact Power Unit helps simplify installation into existing equipment designs without sacrificing performance.