PRODUCT Detail
When you have a tough job to do, you need the power, precision and flexibility of Cummins QSB diesel engines. These 4-cylinder and 6-cylinder electronic QSB engines feature major enhancements to make every piece of equipment work harder, smarter, quieter and longer. Plus, they achieve Tier 3/Stage IIIA compliance with in-cylinder technology that maintains a compact, simple and cost-effective design solution.
The QSB Series is based on the highly successful B Series engines and features power ratings from 110-275 hp (82-205 kW), an increase of up to 18%, with charge air cooling and turbocharging for strong performance. These engines combine proven full-authority electronic controls with the reliable performance you expect from one of the world’s most successful and durable engine designs.
In addition, every QSB has improved cold-start capability and is 5 to 9 decibels quieter in operation than its predecessor. It runs as quietly at full load as the previous QSB did at unloaded conditions.
QSB4.5 | QSB6.7 | |
Engine Type | In-Line, 4-Cylinder | In-Line, 6-Cylinder |
Displacement | 275 CU IN (4.5 L*) | 408 CU IN (6.7 L*) |
Advertised Horsepower | 110-170 HP (82-127 KW) | 133-275 HP (99-205 KW) |
Peak Torque | 459 LB-FT (622 N•M) | 730 LB-FT (990 N•M) |
Aspiration | Turbocharged and Charge Air Cooled | Turbocharged and Charge Air Cooled |
Oil System Capacity | 11.6 U.S. QT (11 L*) | 15-25.3 U.S. QT (14.2-23.9 L*) |
Coolant Capacity | 9 U.S. QT (8.5 L*) | 10.6 U.S. QT (10 L*) |
Length | 32.2 IN (818 MM) | 41.7 IN (1059 MM) |
Width | 28.1 IN (713 MM) | 28.6 IN (725 MM) |
Height | 34.5 IN (878 MM) | 37.8 IN (960 MM) |
Wet Weight | 818 LB (371 KG) | 1,047 LB (475 KG) |
*L = Liters/Litres
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