Perrin Manufacturing has released the PowerCube Slim, a more compact version of its popular PowerCube APU. The company said the PowerCube Slim packs the same HVAC power of its predecessor into a thinner profile that fits the mounting space requirements of the majority of North American sleeper cabs.

The original PowerCube APU and the PowerCube Slim both deliver 24,000 BTUs of AC cooling strength and 30,000 BTUs of heating power. Both units are quiet, with the PowerCube Slim performing at only 75 dB under full load, about 30% quieter than an idling Class 8 diesel truck.

 “We set our sights on building the highest quality and most effective APU for owner-operators and small fleets,” Dan Koch, president and CEO of Perrin Manufacturing, said. “When independent operators buy an APU, they want it to do its job, to last a long time and to be hassle-free, so we engineered the PowerCube to give them exactly what they want.”

Both PowerCube units utilize a two-cylinder Caterpillar CO.5i diesel power plant that carries an Environmental Protection Agency (EPA) rating of Tier-4, denoting the lowest emissions for its class.

PowerCube APUs attach to the sleeper cab’s existing fuel tank and operate on just a quarter of the fuel needed to idle a standard Class 8 diesel engine. Both PowerCube models significantly reduce nitrogen oxide (NOx) emission-related soot accumulation and the regeneration frequency of a vehicle’s diesel particulate filter (DPF).

 The PowerCube HVAC unit fits under the bunk and is fitted with a dual 600 cfm high-performance blower. With four separate vents, the PowerCube has twice the capacity of other APUs, Perrin said, which augments its ability to rapidly heat and cool a cab and to maintain the desired temperature.

Both PowerCube models can be ordered in custom colors to match cab bodies and can also be fully finished in chrome. Units come with mounting hardware, wire harness system, integrated muffler, fuel pickup apparatus, under-bunk HVAC unit, flexible ductwork and an easy-to-operate, handheld digital temperature control unit.