Cummins B Series engine
| Cummins B Series | |
|---|---|
| Overview | |
| Manufacturer | Cummins |
| Also called | 4B/6B/6BT/6BTA |
| Production | 1984–1998 |
| Combustion chamber | |
| Configuration | I4 and I6 diesel engines |
| Displacement |
|
| Cylinder block alloy | Iron |
| Cylinder head alloy | Iron |
| Valvetrain | 2 Valves per cylinder |
| Combustion | |
| Turbocharger | Holset Engineering |
| Fuel system | Direct injection |
| Management | Mechanical |
| Fuel type | Diesel |
| Oil system | Wet sump |
| Cooling system | Water-cooled |
| Dimensions | |
| Dry weight | 1100 lbs |
| Cummins B Series | |
|---|---|
| Overview | |
| Manufacturer | Cummins |
| Also called | ISB |
| Production | 1989–2007 |
| Combustion chamber | |
| Configuration | inline-six cylinder engine. |
| Displacement | 5.9 Liters |
| Cylinder bore | 102.0 MM |
| Piston stroke | 120.0 MM |
| Cylinder block alloy | Iron |
| Cylinder head alloy | Iron |
| Valvetrain | 4 Valves per cylinder |
| Combustion | |
| Turbocharger | Holset Engineering |
| Fuel system | Direct injection |
| Management | Mechanical with electronic advance. |
| Fuel type | Diesel |
| Oil system | Wet sump |
| Cooling system | Water-cooled |
| Dimensions | |
| Dry weight | 1100 lbs |
| Chronology | |
| Predecessor | 6BT |
| Cummins B Series | |
|---|---|
| Overview | |
| Manufacturer | Cummins |
| Also called | ISBe |
| Production | 2007–present |
| Combustion chamber | |
| Configuration | I4 and I6 diesel engines |
| Displacement | 6,690 cc |
| Cylinder bore | 107.0 mm |
| Piston stroke | 124.0 mm |
| Cylinder block alloy | Iron |
| Cylinder head alloy | Iron |
| Combustion | |
| Turbocharger | Holset Engineering |
| Fuel system | Direct injection(Common rail) |
| Management | Electronic |
| Fuel type | Diesel |
| Oil system | Wet sump |
| Cooling system | Water-cooled |
| Dimensions | |
| Dry weight | 1100 lbs |
The Cummins B Series is a family of American straight-four and straight-6 diesel truck and industrial piston engines that are manufactured by Cummins. The B Series is known for the popular 3.9 liters (238.0 cu in) straight-four and 5.9 liters (360.0 cu in) straight-six motors. Straight-fours displacing 3.3 liters (201.4 cu in) and 4.5 liters (274.6 cu in) are also available. The B Series is widely used in many segments, including pickup trucks (the Dodge Ram), buses, military vehicles, construction equipment, and marine vehicles. Some of the construction and marine applications use a dual installation, of two B Series Cummins engines. The engine was originally designed by Cummins and Case Corporation for commercial truck applications, and gained much of its popularity after appearing in the Dodge Ram, in 1989.
The B-series features engine bores machined directly into the block (rather than the wet liners used on earlier Cummins engines). It was also set apart by the use of a shallow one-piece head, requiring closer tolerances than in other Cummins products. The engine was first manufactured in Rocky Mount, North Carolina, and other plants were later added in Mexico, Turkey, and Darlington, UK.
Every Cummins powered Dodge Pickup (since initial production in 1989) has come equipped with a turbocharger. It uses a gear-drive camshaft for extra reliability. Also specified is a deep-skirt engine block and extra-strong connecting rods. A Holset turbocharger is used. The original B Series was updated with 24 valves and an electronic engine management system to become the ISB in 1998.
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