Engine Cummins QSB3.3

Cummins QSB3.3 Engine After Overhaul – Ready to Install

We offer a fully remanufactured Cummins QSB3.3 engine, prepared for immediate installation or reconfiguration for a specific machine. The unit has undergone a complete Overhaul and has been tested on a dynamometer, making it a practical alternative to a new engine – with an emphasis on reliability and availability.

Scope of work and verification

• Complete Overhaul – new pistons, liners, rings, bearings; refurbishment or replacement of the oil and water pumps.
• Fuel system diagnostics – precision diagnostics, cleaning, calibration, and testing of high-pressure components.
• Cylinder head and crankshaft – machining, leak testing, replacement of valves and guides; crankshaft measured and ground as required.
• Power tests – load tests on a Dynamometer verifying operating parameters and thermal stability.

Configuration and fitment

• Available in a quick-swap „plug & play” variant.
• Ancillary reconfiguration – adapting manifolds (intake/exhaust), turbocharger, wiring harness, ECU, alternator, couplings, and hydraulic pumps.
• Installation support: mobile service and in-house workshop – including Kraków / Małopolska / Podhale.

Applications

Engine for construction machinery operating in tough conditions: excavators, wheel loaders, dumpers, as well as generator sets and hydraulic drives. Proven in continuous duty, for both construction and industrial equipment service.

Why choose it

• Post-overhaul reliability – dependable starts, correct pressures and temperatures, smooth, even operation.
• Short downtime – quick replacement of a ready unit minimizes machine downtime.
• Flexibility – configuration tailored to a specific machine model, including non-standard ancillaries.

Service, repair, and operational support

We provide Service and Engine Repair for Cummins, full engine overhauls, routine inspections, and spare parts and subassemblies. We perform electronic and mechanical Diagnostics, valve timing setup, and injector calibration. Construction machinery service and a mobile services are available in the region: including Kraków, Małopolska, Podhale.

Warranty

The unit is covered by a post-overhaul warranty. Conditions include operation in line with the manufacturer’s recommendations, regular maintenance, and the use of correct fluids and filters.

Logistics and availability

• Available from stock.
• Installation at our facility or by our mobile service.
• Domestic and international shipping – secure packing and full transport arrangements.

Shipping – Poland and worldwide

We deliver throughout Poland and ship internationally – within the EU and beyond. We provide packing and full organization of transport and customs documentation.

FAQ – frequently asked questions

• Does an overhauled Cummins QSB3.3 deliver full power?
  Yes. Every unit undergoes load testing on a Dynamometer, confirming factory performance parameters.
• What are the warranty conditions?
  Operation must follow the manufacturer’s recommendations, with regular Service and inspections – details are provided for each specific unit.
• My engine has a different timing gear housing, an additional hydraulic pump, or a different turbocharger – what can you do?
  We offer reconfiguration and adaptation of ancillaries to your setup to ensure a trouble-free installation.

Contact

Get in touch to select the right Cummins QSB3.3 configuration for your machine. We will advise you, quote an Overhaul or Repair, and supply Parts.

Cummins brand– a few words about the brand

Cummins (Cummins Inc.) is an American brand founded in 1919 in Columbus, Indiana. It specializes in the design and manufacture of diesel and natural gas engines, as well as complete power and drivetrain systems for trucks, construction and agricultural machinery, rail, mining, and power generation. The portfolio also includes generator sets and components (turbochargers, filtration, exhaust aftertreatment, control electronics). The company maintains a global service and parts supply network. In parallel, it develops low- and zero-emission technologies (including electric and hydrogen systems, e.g., under the Accelera brand), combining durability and reliability with lower operating costs.