The Mack Boring & Parts GPP40-WE is a 37 kW standby generator set powered by a MITSUBISHI S4SDT engine. It is available at 120/240 V and 120/208 V, 3-phase, 60 Hz and rated 120 A. It holds about 10 L (2.6 gal) of oil and 5.5 L (1.5 gal) of coolant. The set measures 2032×914×1143 mm (80.0×36.0×45.0 in) and weighs about 567 kg (1250 lb). The same MITSUBISHI S4SDT engine also powers generator sets from AceGen, Mitsubishi and SDMO.
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.