RT125 – 12.5HP

The Kubota RT125 is a horizontal, water-cooled, four cycle diesel engine. With a capacity of 12.5HP at 2400RPM, the Kubota RT125 is renowned for its reliability and durability.


  • Direct injection system delivers significant fuel savings compared to competitor products.
  • Specially designed combustion system increases horsepower and decreases fuel consumption.
  • Stronger and more heat tolerant cylinder heads increases durability.
  • Complete combustion delivers 3-5% more torque when operating at low revs.
  • Capable of continuous running under heavy workloads.
  • Complete with a manual or electric start option with a backup manual crank start.


Type Water Cooled Horizontal Diesel Engine
Number of Cylinders 1
Bore & Stroke 94mm x 96mm
Total Displacement (cc) 666
Combustion System Direct Injection
Intake System Naturally Aspirated
Max Output kW/rpm (hp/rpm) 9.2/2400 (12.5/2400)
Cont Output kW/rpm (hp/rpm) 8.1/2400 (11.0/2400)
Starting System Manual/Electric
Options Engine Protection Kits
Auto Start and Shutdown

Get in Touch

Please fill in the form below
  • This field is for validation purposes and should be left unchanged.