Engine Cummins 4BT3.9

Cummins 4BT3.9 Engine After Overhaul – Ready Unit – Małopolska

We offer a fully remanufactured Cummins 4BT3.9 engine, professionally rebuilt in our service center. This is a complete overhaul unit, prepared for immediate operation in heavy conditions. The engine is available in stock, minimizing costly downtime for your business.

The engine remanufacturing process was carried out adhering to the highest technical standards. Every repaired engine undergoes rigorous testing to ensure long service life and full operational efficiency.

Technical Specifications and Scope of Work – Cummins 4BT3.9 Overhaul

• Comprehensive Crank-Piston System Overhaul – new pistons, rings, liners, and bearings (main and connecting rod) were installed using high-quality spare parts.
• Fuel and Injection System – the injection pump and injectors underwent a full service and calibration, guaranteeing optimal combustion and performance dynamics.
• Cylinder Head and Crankshaft – includes head resurfacing, seal replacement, and crankshaft alignment verification.
• Diagnostics and Dyno Testing – every engine undergoes load tests to confirm factory parameters and system tightness.
• New Consumable Components – a new water pump and oil pump have been installed, ensuring stable lubrication and cooling.

Applications for the Cummins 4BT3.9 Unit

This model is a proven engine for excavators, loaders, and a popular engine for agricultural machinery or power generators. Thanks to its mechanical design, engine repair for this type is cost-effective, and the unit is famous for its legendary resistance to overloading. It also works perfectly as an engine for dumpers or dozers.

Why Choose a Remanufactured Engine?

• Reliability and Availability – the unit is assembled and ready for shipping or installation.
• Time Savings – avoid long waits for the repair of your own component; we offer a ready-to-go solution.
• Professional Mobile Service – we provide technical support at the customer's site across the Podhale region, the entire province, and nationwide.
• Quality Guarantee – every overhauled engine is covered by a warranty, providing peace of mind for your investment.

FAQ – Frequently Asked Questions

• Has the Cummins 4BT3.9 engine been load-tested? Yes, every unit leaving our workshop undergoes tests performed on our dyno to eliminate any hidden defects.
• Do you offer spare parts for this model? Yes, we provide a wide selection and sale of parts, including originals and proven replacements.
• Is on-site engine installation possible? Yes, our construction machinery service has the necessary equipment to perform installation and the first startup at your facility.

Call to Action

Need a functional machine "as of yesterday"? Contact us! We offer expert advice, fast shipping, and professional diagnostics. Your machine deserves a second life with a quality guarantee.

Cummins – A Global Leader in Power Technology

The Cummins brand is an American legend with a history dating back to 1919. Founded by Clessie Cummins, the company became a global pioneer in diesel engine production. The B-series units, to which the Cummins 4BT3.9 belongs, are recognized as some of the most successful designs in industrial history.

Engines from this brand power millions of machines worldwide – from RAM trucks to the heaviest mining and construction equipment. By choosing Cummins, you choose technology that has stood the test of time, offering an unbeatable power-to-weight ratio and simplicity of maintenance. Our company continues this tradition, providing professional service and rebuilding of these reliable machines.