Colonial Equipment Company

Information

2024 Cummins QSB For Agriculture (Tier 2) QSB3.9

Whether you're running a 60-acre family farm or an 8,000-acre spread, you need the precision and flexibility of full-authority electronic controls. That's where Cummins 4-cylinder and 6-cylinder QSB engines make every piece of equipment work harder, longer and better.

Ratings range from 110-275 hp, with both charge air cooled and turbocharged versions that deliver strong performance at every start. A low-maintenance filter assembly is just one of many standard features that minimize downtime for maintenance. Among the many options that let you customize your QSB are packages that reduce the overall noise level by as much as 4 dBA.

The QSB features a cast-iron parent bore block structurally designed to reduce noise and increase durability. An integrated water pump, lube pump, and cooler housings and coolant bypass eliminate possible leak points.

• Full-Authority Electronic Controls - Optimize engine performance and provide seamless integration with other components, advanced diagnostics, plus a complete set of programming options.

• A Deep, Stiff Crankcase With Structural Ribs - For lower noise and increased life.

• Wastegated HX35 Turbocharger - Wastegated design optimizes operation across the torque curve with improved response.

• Low-Maintenance Fuel Filter Assembly - The fuel filter incorporates an integral water separator and water-in-fuel sensor. 500-hour filter life with easy top-load replacement using standard Fleetguard® filters.

• Centered Injectors With Symmetrical Piston Bowls - For improved airflow and even fuel dispersion, resulting in increased power, improved transient response and reduced fuel consumption on 24-valve versions of the QSB.