Engine Cummins QSB6.7

Cummins QSB6.7 engine after overhaul – ready to work

We offer a fully reconditioned Cummins QSB6.7 engine after a complete overhaul. The unit has been tested on a dynamometer and is prepared for immediate installation or reconfiguration for a specific machine. A great choice for companies that need reliability and minimal downtime.

Scope of work and configuration

• Complete overhaul: new pistons, liners, rings, main and rod bearings, oil and water pump, full gasket set, head bolts.
• Machining: crankshaft grinding and balancing, cylinder head skimming, seat, valve and guide refurbishment.
• Common Rail fuel system diagnosed and tested – injectors and high-pressure pump refurbished or replaced.
• Power and pressure tests on the dynometer under full load – operating parameters confirmed.
• Accessory configuration: option to match manifolds, turbocharger, wiring harness, ECU, oil coolers – “plug&play” reconfiguration.

Applications

QSB6.7 is a popular engine for: excavators, loaders, dump trucks, crushers, screeners, and generator sets. It performs well in continuous duty and harsh conditions.

Why an overhauled unit?

• Available immediately – shorter downtime than repairing your own engine.
• High reliability thanks to the full scope of work and quality control.
• Cost-effective: lower total cost compared with a new engine.
• Flexible: can be reconfigured to your application.

Service and support

We provide service and maintenance for Cummins engines. Our mobile service travels to job sites; we perform diagnostics, calibrations, replacements, and selection of parts. Our headquarters is in Kojszówka (Małopolskie / Lesser Poland).

Warranty

The overhauled unit is covered by a workshop warranty. Conditions: installation and operation in accordance with the manufacturer’s recommendations, regular service, and timely filter/oil changes.

FAQ – common questions

• Does the overhauled engine meet factory parameters?
  Yes, confirmed by full-load dyno testing and test reports.
• What about differences in accessories?
  We perform reconfiguration: timing gear housing, auxiliary pumps, pulleys, wiring harness – matched to your machine.
• Do you provide post-installation support?
  Yes – consumable and fuel-system parts, ongoing repair, diagnostics, and technical advice.

FAQ – additional questions about the QSB6.7

• Compatibility with my machine?
  Send the model/serial number. We’ll select the accessories and perform “plug&play” reconfiguration for a trouble-free installation.
• ECU and calibration?
  We provide diagnostics and controller configuration tailored to your application.
• Warranty conditions?
  Operation per the manufacturer’s guidelines and regular periodic service are required.
• What about the old engine?
  A 1:1 exchange is possible with core return for evaluation; details agreed at ordering.
• Delivery and installation?
  Shipping within Poland/EU. Installation at our workshop or on-site via mobile service (including Kraków, Małopolska, Podhale).

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.

Contact & availability

The overhauled engine QSB6.7 is ready for dispatch. Send your machine model / part number and we will select the configuration and schedule. Installation at our site or a 1:1 swap in the field (mobile service).