Engine Model	Rated Power（ Horsepower @ Number of rotations）	Maximum torque 牛頓-米 @ Number of rotations
QSB3.3	80 @ 2200	372 @ 1400
QSB3.3	85 @ 2600	372 @ 1400
QSB3.3	99 @ 2200	412 @ 1400
QSB3.3	99 @ 2600	412 @ 1400
QSB3.3	110 @ 2400	412 @ 1400
QSB4.5	110 @ 2200	489 @ 1500
QSB4.5	130 @ 2300	511 @ 1500
QSB4.5	148 @ 2300	598 @ 1500
QSB4.5	160 @ 2200	622 @ 1500
QSB4.5	170 @ 2500	622 @ 1500
QSB6.7	133 @ 2000	431 @ 1450
QSB6.7	155 @ 2200	618 @ 1500
QSB6.7	173 @ 2200	800 @ 1400
QSB6.7	190 @ 2200	929 @ 1400
QSB6.7	215 @ 2200	888 @ 1500
QSB6.7	220 @ 2200	945 @ 1500
QSB6.7	240 @ 2500	987 @ 1500
QSB6.7	260 @ 2500	990 @ 1500

QSB3.3 adhering to the mechanical properties of the B3.3 engine, become the same size engine in the first paragraph will be all-electric and high pressure common rail fuel system (HPCR) the perfect combination of small construction machinery and diesel engines. QSB3.3 maximum power up to 110 horsepower (82 kilowatts), performance reached the same level 4.0 and 4.5-liter engine, while the volume and weight is reduced by 30%, total power output lower than mechanical engine noise about 3 db, greater low-speed torque to satisfy Europe, the US and Africa highway mobile equipment phase III emission standards (Tier 3).

Compared to meet the second phase of the emissions QSB3.9 and QSB5.9 engine, meet the third phase of emissions Cummins QSB4.5 and QSB6.7 engine is a new design of a new generation of products. Full electronically controlled high pressure common rail fuel system ensures the fuel in the cylinder softer, more thorough combustion, without the use of exhaust gas recirculation, reached the third stage of emission standards. Rear gear compartment and flywheel housing design as a whole, the structure is more robust, gear noise has been further reduced. QSB4.5 and QSB6.7 engine noise at full load is equivalent to the value of the previous generation QSB engine noise without load.

After upgrading the electronic control module (ECM) data processing speed is twice before; mid-injector pair said the improved combustion chamber bowl, lower fuel consumption; monolithic cylinder displacement increases, the structure is more robust, lower noise.

QSB3.3 is matched rollers, forklifts, excavators, backhoe ideal loaders, skid steer loaders and other construction machinery.

Canton QSB4.5 and 6.7 engine power coverage, widely used in excavators, loaders, rollers, graders and airport ground support equipment (eg, aircraft tractors, power cars), and other equipment. In addition, according to the characteristics loader work, Cummins tailored properties suitable for QSB6.7 loaders use curves to achieve a perfect match with the host device.