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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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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 |
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Reference model |
4BT3.9-M80 |
4BT3.9-M100 |
4BT3.9-M105 |
Bore×Stroke |
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Displacement |
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Rated Power/Speed |
80HP/2000rpm |
100HP/2200rpm |
105HP/2400rpm |
Lubricant Capacity |
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Net Weight |
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Overall Dimension |
930*765* |
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Cooling Way |
Heat exchanger, sea water pump |
Test Condition
Standard Air Intake Temperature |
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Air Intake Pressure |
100kPa |
Standard Light Diesel |
0# or –10# Light Diesel |
Fuel Intake Temperature |
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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
Fuel consumption: 4BT marine diesel engine Excellent fuel consumption with B.S.F.C
Construction characteristic: Simple and compact construction, fewer components and light weight.
PreviousSmall marine engine Cummins 4BTA3.9