Used Cummins 4BT3.9-G2 50kW Diesel Generator – American Made, In Stock

Used Cummins 4BT3.9-G2 50kW Diesel Generator – American Made, In Stock, Serviced & Tested

This listing is for a used Cummins 4BT3.9-G2 diesel generator set, delivering 50kW (62.5kVA) of reliable prime power . Powered by the renowned Cummins 4BT3.9-G2 engine – an American-designed and manufactured workhorse – this unit represents the perfect balance of compact size, fuel efficiency, and legendary dependability for light to medium-duty applications. This generator is currently in stock and available for immediate dispatch.

American-Made Cummins – Legendary Reliability

The Cummins 4BT3.9-G2 is part of the famous B-series engine family, designed and engineered in the USA and trusted worldwide for robust construction, exceptional durability, and ease of maintenance. With proper care, these engines are known to achieve 15,000–20,000+ operating hours before major overhaul. This used unit offers the same proven American engineering at a fraction of the cost of new equipment.

Engine Specifications

The Cummins 4BT3.9-G2 features a compact yet powerful 4-cylinder in-line diesel engine with:

Generator Set Specifications

Condition & Testing

• Condition: Used, with cosmetic signs of prior service consistent with working industrial equipment

• Stock Status: In stock – available for immediate dispatch

• Engine Hours: Please contact for current hour meter reading

• Service History: Oil and filter changed, coolant and fuel levels checked, air filter inspected/replaced

• Load Test: Unit has been load bank tested and operates smoothly at rated output

• Inspection: Available for viewing by appointment

• Warranty: Basic warranty included (inquire for details)

Why Choose a Pre-Owned American-Made Cummins Generator?

The Cummins B-series engine is one of the most successful diesel engine designs in history, with millions of units operating worldwide. American engineering and manufacturing ensure:

• Proven durability – Designed for long service life in demanding conditions

• Global parts availability – Extensive network of Cummins dealers and parts suppliers worldwide

• Excellent fuel efficiency – Low operating costs compared to older mechanical engines

• Compact size – Fits where larger engines cannot

• Strong resale value – Cummins equipment maintains value well

• Versatile applications – Suitable for prime power or standby use

Key Features

Cummins Engine Advantages:

• American design & engineering – Developed and refined in the USA

• Turbocharged performance – Excellent power density and altitude capability

• Electronic governor – Precise speed control for stable frequency output

• Easy maintenance – Service points designed for quick access

• Cold start capability – Reliable starting in various conditions

Generator Features:

• Quiet operation – Optional silent canopy models available

• Weatherproof enclosure – Optional canopy protects against dust and rain for outdoor use

• Protection system – Automatic shutdown on low oil pressure, high coolant temperature, and overload

• Compact footprint – Ideal for space-constrained installations

• Dual frequency capability – 50/60 Hz selectable for international versatility

Typical Applications

• Commercial buildings: Small offices, shops, restaurants backup power

• Construction sites: Power for tools, lighting, site offices

• Small manufacturing: Workshops, small factories, processing equipment

• Agriculture: Farms, irrigation pumps, grain drying

• Telecommunications: Tower and exchange backup power

• Events: Outdoor events, weddings, festivals

• Residential: Large homes, small apartment complexes backup

• Remote sites: Cabins, field operations, temporary power

What’s Included

• Cummins 4BT3.9-G2 diesel generator unit

• Control panel with instrumentation

• Base frame with anti-vibration mounts

• Exhaust silencer and flexible connection

• Operator’s manual and maintenance records (where available)

• Basic tool kit (where available)

Options Available (please inquire)

• Sound-attenuated canopy – Weatherproof, low-noise enclosure

• Trailer mounting – Road-legal trailer for mobility

• Automatic Transfer Switch (ATS) – For automatic backup power

• Remote monitoring – Web-based monitoring and control

• Extended warranty – Optional coverage beyond standard

• Installation & commissioning – Professional setup services

• Additional fuel tank – For extended runtime requirements

Why Buy from Us?

• Immediate Availability: In stock – ready for dispatch

• Inspection Welcome: View the unit in person or request detailed photos/videos

• Professionally Serviced: Fully checked and serviced by experienced diesel technicians

• Load Tested: Verified performance at rated output

• Competitive Pricing: Significant savings compared to new equipment

• Technical Support: Our team can assist with installation and operation questions

• Shipping: We can arrange delivery worldwide