PRODUCT Detail
The Cummins QSB4.5 achieves Tier 3 and Stage IIIA compliance with in-cylinder technology that maintains a compact, simple installation that provides premium performance to every application.
The QSB4.5 makes every piece of construction equipment work harder, smarter, quieter and longer. Every time. It shares technology with the rest of our highly successful B Series, including charge air cooling and turbocharging for strong performance. Power ratings range from 110-170 hp (82-127 kW).
This engine combines proven full-authority electronic controls with the impressive reliability and durability and long maintenance intervals you expect from one of the world’s most successful and durable designs.
Every QSB4.5 has improved cold-start capability and is 5-9 decibels quieter in operation than its predecessor. Plus, it runs as quietly at full load as the previous QSB did with no load! A wide range of features are standard.
To ensure that every QSB4.5 is perfectly matched to every piece of equipment, Cummins PowerMatch and Advisor are ready to provide expert assistance with your spec’ing and installation process.
Every QSB4.5 engine is covered by Cummins three-step warranty, one of the most comprehensive and simplest plans in the industry.
Engine Type | In-Line, 4-Cylinder |
Displacement | 4.5 L* (275 cu in) |
Advertised Horsepower | 109-170 hp (81-127 kW) |
Peak Torque | 460 lb-ft (624 N•m) |
Aspiration | Turbocharged and Charge Air Cooled |
Oil System Capacity | 11.6 U.S. qt (11 L*) |
Coolant Capacity | 9 U.S. qt (8.5 L*) |
Length | 32.2 in (818 mm) |
Width | 28.1 in (713 mm) |
Height | 34.5 in (878 mm) |
Wet Weight | 818 lb (371 kg) |
*L=Liters/Litres
The QSB4.5 delivers lasting value for your farming operation, with standard features that include:
- High Pressure Common Rail Fuel System – Delivers high injection pressure (1600 bar) for improved performance and fuel efficiency at every rpm
- In-Cylinder Combustion Technology – Meets emissions standards without external components; is compatible with high-sulfur fuels for worldwide use
- Rear Gear Train – Significantly lowers noise output to meet worldwide noise emission standards
- Wastegated Turbocharger – Designed by Cummins Turbo Technology. Wastegated for better low-speed performance and high-speed boost
- Two-Stage Dual Fuel Filter – Provides a balanced level of particle separation to maximize fuel filter life and protect vital fuel system components
- Parent Bore Cylinder Block – Designed for reduced noise and increased durability
- Directed Piston Cooling – Lower piston temperatures lead to longer life
- Wider Camshaft Lobes and Larger Tappet Wear Surface – Enhance durability and reliability
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