APS95G View Specifications APS165G Inventory Status Please contact Gas Product Sales Engine PSI® HD 8.1L Power Rating (Natural Gas - Prime) 130 kW (162 kVA) Frequency 60 Hz EPA Certified (NSPS SI emissions) View Specifications APS230G Inventory Status Please contact Gas Product Sales Engine PSI® HD 11.1L Power Rating (Natural Gas - Prime) 180 kW (225 kVA) Frequency 60 Hz EPA Certified (NSPS SI emissions) View Specifications APS290G Inventory Status Please contact Gas Product Sales Engine PSI® HD 14.6L Power Rating (Natural Gas - Prime) 230 kW (288 kVA) Frequency 60 Hz EPA Certified (NSPS SI emissions) View Specifications APS470G Inventory Status Please contact Gas Product Sales Engine PSI® HD 21.9L Power Rating (Natural Gas - Prime) 375 kW (468 kVA) Frequency 60 Hz EPA Certified (NSPS SI emissions) View Specifications