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4BT 3.9L cummins marine diesel engine

  • 1.Brand : cummins
  • 2.Fuel type: Diesel
  • 3.Cylinder NO: 4
  • 4.Application: Marine
  • 5.Cooling type: water cooled
  • 6.Aspiration: Turbocharged
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Product Details

4BT turbo diesel cummins marine engine is marinised worldwide, here we provide

3 power range for this model

Engine Technical Datasheet

In-line, 4 Cylinder, 4 Cycle, Turbo Diesel Cummins marine Engine

Reference model

4BT3.9-M80

4BT3.9-M100

4BT3.9-M105

Bore×Stroke

102mm×120mm

Displacement

 3.9L

3.9L 

3.9L 

Rated Power/Speed

80HP/2000rpm

100HP/2200rpm

105HP/2400rpm

Lubricant Capacity

9L

Net Weight

385kg

Overall Dimension

930*765*910mm

Cooling Way

Heat exchanger, sea water pump

 Test Condition

Standard Air Intake Temperature

25

Air Intake Pressure

100kPa

Standard Light Diesel

0# or –10# Light Diesel

Fuel Intake Temperature

40

Air Intake Restriction

254mmHg

Exhaust Back Pressure

76mmHg

Lubricant Oil

15W40-CF4 Upgrade

Design Characteristic

Belt drive system : 4BT marine engine Belt drive system with tensioner offering automatic belt tension.

Maintenance: Both cylinder bore and cylinder head valve guide tube can be repaired by resisting.

Connecting rod: 4BT marine inboard engine Alloy steel with high strength and inclined cutting.

Crankshaft: Alloy steel with whole bearing supporting and bearing and round corner harden.

Cylinder block: Dragon door style cylinder block without liner and with water pump turbo house resisted.

Cummins 4BT Fuel system: BYC A fuel injection pump with electrical governor.

Garret turbocharger: Bypass high efficient turbocharger.

Piston: 4BT propulsion engine Silicon- aluminium alloy piston with dual Ni-resist and oil cooling.

Starting function: Be started at -12 without assistant installation; Be started at -35 with assistant installation.

Fuel consumption: 4BT marine diesel engine Excellent fuel consumption with B.S.F.C 215g/kw.h.

Construction characteristic: Simple and compact construction, fewer components and light weight.

PreviousSmall marine engine Cummins 4BTA3.9

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