The Lincoln Electric Lincoln Bulldog 5500 Engine-Driven Welder Generator is a compact Kohler-powered engine-driven welder/generator designed for light-duty field welding, farm maintenance, and job-site power generation where a smaller, more portable unit is preferred over full-size engine drives. Capable of Stick (SMAW) welding and providing AC generator output, the Bulldog 5500 delivers reliable performance for maintenance technicians, ranchers, and light construction crews who need dependable welding capability in a compact package.
The Bulldog 5500 features Lincoln Electric's proven arc technology in an engine-driven platform powered by a Kohler gasoline engine. Its generator output supports power tools, lighting, and auxiliary equipment simultaneously, making it a versatile all-in-one field power solution for operations where utility grid access is unavailable. The U2708-2 is a factory-certified demo unit available at a reduced price with Lincoln Electric's full performance certification.
- K2708-2 – Bulldog 5500 Engine Driven Welder Kohler
- U2708-2 – Bulldog 5500 Factory Demo Engine Driven Welder Kohler
- Kohler gasoline engine for reliable starting and dependable field operation
- DC Stick (SMAW) welding output for structural steel, carbon steel, and maintenance repair electrodes
- Integrated AC generator output powers tools and lighting simultaneously with welding
- Compact, lightweight design relative to full-size engine drives for easier transport and positioning
- Lincoln Electric arc technology for smooth, stable Stick welding performance
- Low-maintenance design with accessible service points for field upkeep
- Factory demo unit inspected and certified to Lincoln Electric performance standards
- Farm and ranch equipment maintenance and repair in remote field locations
- Light construction and general contractor field welding
- Residential and agricultural property maintenance welding
- Emergency backup power generation for small tools and lighting
- Hunting camps, remote cabins, and off-grid applications requiring portable power and welding
The Lincoln Bulldog 5500 provides a practical, affordable engine-driven welding and power generation solution for operators who need field capability without the weight and cost of a full-size industrial engine drive. Kohler-powered and Lincoln Electric-built, the Bulldog 5500 — in new or factory-certified demo configuration — delivers the arc reliability and generator versatility that light-duty field welding demands.
Our certified reconditioned engine-driven welders include the same Lincoln reliability with significant savings. Recon inventory fluctuates — check current availability.
Shop Reconditioned Engine-Driven Welders →The Bulldog 5500 Engine-Driven Welder Generator supports Stick (SMAW) and TIG (GTAW) welding as standard processes. Many engine-driven models in this family also support MIG (GMAW) and flux-core (FCAW) welding when paired with an optional wire feeder. Check the spec sheet for the exact output range and recommended wire feeder compatibility.
Yes. Lincoln Electric engine-driven welders in this class include AC generator power — typically 120V and 240V auxiliary power outlets — making them ideal for jobsite use where power tools, lights, or other equipment need to run alongside welding operations. Refer to the spec sheet for exact generator wattage.
Lincoln engine drives in this class are available with Kohler, Kubota, or Perkins diesel/gasoline engines depending on the specific model variant. The engine brand and displacement is listed on the product label and in the owner's manual. Contact WeldingMart if you need to confirm the exact engine for a specific unit.
Duty cycle varies by amperage setting. At maximum rated output the duty cycle is typically 100% — engine drives are designed for continuous, all-day operation in demanding field environments. Refer to the spec sheet for the duty cycle curve at specific amperage levels.
Yes — this is a factory demo or low-hour unit directly from Lincoln Electric. Units may show light cosmetic marks from display use but are mechanically sound. Each unit includes any applicable remaining Lincoln Electric warranty. Contact WeldingMart for warranty status on the specific unit number.
Factory demo engine drives typically include the base machine and standard accessories as specified by Lincoln Electric. Consumables (electrodes, gas cylinders) are not included. See the product listing details or contact WeldingMart to confirm what is included with your specific unit.