4JB1 diesel engine are use FOTON technology and improvement. 4JB1 engine power from 24kw-38kw. 4JB1 diesel engine is suitable for continue power plant. 4JB1 engine is small size and full power supply. 4JB1 diesel engine is good quality and competitive price.

3. Technical configuration
3.1 Fuel injection pump
3.1.1 BQ2000 inline plunger fuel injection pump
3.1.2 GAC digital electronic governor

3.2 Flywheel housing
3.2.1 for 4JB1 & 4JB1T
3.2.1.1 Flywheel housing S.A.E. 4#
3.2.1.2 Spigot diameter Φ361.95 +0.089
3.2.1.3 Mounting bolt hole 12-M10-6H
3.2.1.4 Pitch circle diameter of mounting bolt hole Φ381
3.2.1.5 Runout tolerance between flywheel end face/spigot and crankshaft center <0.3mm
3.2.2 for 4JB1TA
3.2.2.1 Flywheel housing S.A.E. 3#
3.2.2.2 Spigot diameter Φ409.575 +0.155
3.2.2.3 Mounting bolt hole 12-M10-6H
3.2.2.4 Pitch circle diameter of mounting bolt hole Φ428.625
3.2.2.5 Runout tolerance between flywheel end face/spigot and crankshaft center <0.3mm
3.3 Flywheel disc
3.3.1 for 4JB1 & 4JB1T
3.3.1.1 Flywheel disc standard S.A.E. 7½”
3.3.1.2 Spigot diameter Φ241.3 +0.072
3.3.1.3 Mounting bolt hole 8-M8-7H
3.3.1.4 Pitch circle diameter of mounting bolt hole Φ222.25
3.3.1.5 Distance to the end face of flywheel housing 30.2mm
3.3.2 for 4JB1TA
3.3.2.1 Flywheel disc standard S.A.E. 11½”

3.3.2.2 Spigot diameter Φ352.42 +0.081
3.3.2.3 Mounting bolt hole 8-M10-7H
3.3.2.4 Pitch circle diameter of mounting bolt hole Φ333.38
3.3.2.5 Distance to the end face of flywheel housing 39.6mm
3.4 Cooling fan
3.4.1 Direct connection cooling fan
3.4.2 Diameter of cooling fan: Φ420 for 4JB1 and 4JB1T; Φ430 for 4JB1TA
3.5 Air filter & intake hose
3.5.1 Air flow rate 250m³/h
3.5.2 To be installed above flywheel housing and connected with air intake port by rubber hose
3.6 Exhaust pipe
3.6.1 To be installed upward, coming with bellow, joint flange of exhaust & plastic dust cap
3.7 Fuel filter
3.7.1 Coming with fuel filter, replacement instruction imprinted outside of fuel filter element in English
3.8 Oil filter
3.8.1 Coming with oil filter/cooler, replacement instruction imprinted outside of oil filter element in English
3.9 Starter
3.9.1 Voltage 12V, output 2.8kW

3.10 Alternator
3.10.1 AC generator, output 14V, 50A