Cummins engine 4BTA3.9-G11 genset

Technical Specification

Cylinder In-line 4

Compression Ration 16.5:1

Displacement 3.9L

Rated Speed 1500r/min (1800r/min)

Rated Power 70KW (78KW)

Standby Power 77KW

Genset Matching Power 62KW

Fuel Injection Pump A

Steady Speed Droop ≤1%(Electrical Governor)

Lubricant Capacity 11L

Coolant Capacity 8L(Engine Only)

Net Weight 320kg

Wet Weight 340kg

Overall Dimension(LXWXH) 765X582X908mm

Coolant Intake Size Φ58mm

Coolant Outlet Size Φ45mm

Cooling Way Positive Water Cooling Cycle

Chongqing SAC Group Co., Ltd is located in Chongqing,SAC Power mainly engages in research,manufacture, sales diesel engine, gas engine and generating sets as well. SAC's prime products include Cummins diesel engines (30kw ~ 2000kw), such as NTA855, KTA19, KTA38 and KTA50-TA, gas engine (40kw ~ 700kw), diesel generator sets (200kw to 2000kw), natural gas generator sets (30kw ~ 650kw) .

The Cummins PT fuel injection system, hydraulic injection and changeable timing system, turbocharging system, and air inner-cooling system; With those features, SAC's engines possess more advantages, such as larger power, fuel-efficient, lower noise,smaller volume, and lighter weight, etc.

Continual research and innovative development in technology is the key to our success. We have obtained more than 30 nationally registered patents, including 3 invention patents (cast-steel cylinder body of diesel engine), 15 design patents (cylinder block of diesel engine), and 18 utility model patents (cast-steel individual cylinder head of diesel engine).