RigMaster has expanded its APU product offerings to include two distinct APU models. The T4 CARB-compliant model utilizes a Tier 4a engine and can be equipped with a diesel particulate filter (DPF) for California compliance on 2007 or newer trucks pending final approval. The T2 model is fitted with a Tier 2 EPA-compliant engine, and is a cost-effective choice for customers looking to install an APU on pre-2007 model trucks that won’t travel to California. Both models have seen enhancements.

All 2008 RigMasters now come with a serpentine belt drive to replace the generator and compressor belts, which promises to reduce maintenance while improving serviceability and durability. The new design also offers drivers improved heating and cooling to the cab, the company says, and comes factory-installed with a quieter muffler designed with multiple exhaust options for greater installation flexibility.

Both models are available with either a Perkins or a Caterpillar engine option.