Lincoln Ranger 300MP LPG – K5940-1

The Lincoln Ranger 300MP LPG K5940-1 combines multi-process welding and generator power for restricted or specialized jobsites where gasoline or diesel may not be acceptable. It uses the LPG Rehlko CH730 LP engine platform and extends the published CC range to 300 amps.
Key Specifications
Welding output
250A/30V CC/Stick and 272A/27.6V CV/Wire at 100% IEC rating; 300A/25V non-IEC
Output range
35–300A CC; 15–30V CV; 85VDC maximum OCV
Generator output
10,000W peak; 9,500W continuous; 120/240V AC, single phase
Engine
Rehlko CH730 LP, 21.5 hp, 725 cc
Fuel / controls
LPG; manual choke; carburetor; 2,500 RPM idle and 3,600 RPM high idle
Dimensions
26.4 × 20.0 × 36.4 in; 33.1 in to top of exhaust pipe
Net weight
424 lb (193 kg)
Battery
12V Group 26, 500 CCA
Manufacturer source: Lincoln Electric product literature for K5940-1.
Recommended Use Cases
Restricted or specialized jobsites that specify liquefied petroleum gas
Higher-output field Stick and compatible CV wire-welding work
Jobs that need 120/240V AC generator power alongside a 300-amp-class engine drive
Ordering Guidance
Order by the exact product number K5940-1 and confirm the LPG configuration. Match the published output range and generator rating to the job, then confirm required welding leads, wire-feeding equipment, fuel-system components, and other accessories before checkout. No accessory is represented as included unless the live offer explicitly says so.
Compare Ranger Models
Lincoln Ranger 230MP K5938-1
Lincoln Ranger 260MP K5937-1
Lincoln Ranger 260MP LPG K5939-1
Browse Lincoln Ranger engine-driven welders, compare the full engine-driven welders and welder generators, or read the engine-driven welder buyer’s guide.
Frequently Asked Questions
What fuel does the Ranger 300MP K5940-1 use?
K5940-1 is the LPG version. Confirm that the jobsite and fuel setup are compatible with Lincoln’s LPG configuration before ordering.
What is the Ranger 300MP LPG generator rating?
Lincoln publishes 10,000 watts peak and 9,500 watts continuous at 120/240V AC, single phase.
What is the rated welding output?
The 100% IEC ratings are 250A/30V for CC/Stick and 272A/27.6V for CV/Wire. Lincoln also publishes a 300A/25V non-IEC rating.
How does K5940-1 differ from K5939-1?
K5940-1 is the 300MP LPG model with a 35–300A CC range. K5939-1 is the 260MP LPG model with a 35–260A CC range.
What should I confirm before ordering?
Confirm the exact K5940-1 product number, LPG requirements, generator load, welding process, and any compatible leads, wire feeder, or other accessories needed for the planned setup.