Engine Cummins QSL8.9

Cummins QSL8.9 engine after overhaul — complete drop-in unit

Available Cummins QSL8.9 engine after a full workshop Overhaul, prepared for immediate installation or reconfiguration for a specific machine. A solution for companies that need reliability, minimal downtime, and complete documentation from dynamometer tests.

Scope of work and verification

• Block and crank-piston assembly measured and inspected: new liners, pistons, rings, pins, bearings; clearances and alignment checked.
• Cylinder head machined: resurfacing, leak/pressure test, new guides, valves, and stem seals.
• Lubrication and cooling systems: new oil pump, serviced water pump, thermostat, oil cooler cleaned and pressure-tested.
• Fuel system fully verified: pump/injectors refurbished or replaced, flow and return tests; clean fuel system.
• Boost and intake: turbocharger inspected or rebuilt, leak-free intercooler, new sealing hardware.
• Final loaded test on the dyno: pressures, temperatures, smoke, and operating parameters confirmed with a test report.

Configurations and conversions

We match the accessory configuration (timing gear housing, flywheel/clutch housing, alternator, air compressor, wiring harness, ECU, manifolds) to your machine. We can install ancillaries from the old engine and adapt the harness — we minimize modifications so the installation is plug-and-play.

Applications

• Engine for excavators, wheel loaders, dumpers, rollers, screeners, crushers, and generator sets.
• Common cooperation with machines from JCB, Doosan, Terex, Volvo, Case, and New Holland.

What you get

• Available off the shelf — fast replacement keeps downtime to a minimum.
• Fully overhauled — operating parameters and compression within spec.
• Flexibility — conversion for a specific application and ECU maps according to the machine’s requirements.
• Warranty and dyno report — full documentation from commissioning and tests.

Service and support

Stationary and mobile service: Diagnostics (computer and mechanical), Repair, Overhaul, selection of Parts (OEM and aftermarket). We serve including Kraków, Lesser Poland (Małopolska) and Podhale; shipping and installation available across Poland, the EU, and worldwide.

Our headquarters is in Kojszówka, Lesser Poland Voivodeship.

FAQ

• Does the engine deliver full power? — Yes. Every overhauled unit undergoes a loaded dyno test and calibration of idle and system pressures.
• Will you match the ancillaries? — Yes. We transfer or supply compatible ancillaries and prepare the installation for the specific frame/driveline.
• What about warranty? — Workshop warranty with the option to extend after completing scheduled Service inspections.

Contact

Provide the ESN number and machine application — we will prepare a quote for a Cummins QSL8.9 engine with installation or shipping, including lead time and conversion options.