Sold November 2023 Back to Archive

4 inch scale Burrell 6nhp agricultural engine - stock code 11542

A 4 inch scale Burrell agricultural engine, assembled from a Steam Traction World kit the engine has come to us from a long-time friend of the company and his son - both highly experienced steam engineers - in part exchange for a full-sized engine.

Well painted when first built, it now needs some light cosmetic refurbishment - spraying in the cylinder block and front end in black, followed by a seriously good clean, would transform the look of the thing.

The engine has been serviced in our works, the boiler hydraulic and steam tested with thickness readings taken & new certification issued. Work done at this time included:

  • Replacement pressure gauge fitted, original out of calibration limits
  • Leaking regulator replaced with our standard graphite-filled PTFE type
  • Unreliable injector replaced with one of the estimable Mr. Holroyd's excellent instruments (a thing of beauty in its own right, it must be said)
  • New safety valve spring fitted, safety valve reset

The engine steams freely and runs very well - the tender-mounted seat with jockey wheel providing a comfortable perch from which to drive.

Offered complete with firing irons, a starter kit of coal and water, and 12 months warranty. We would be more than happy to give half a day's instruction on the steaming, running and disposal of the locomotive to a new owner.


scale 4 inch
length/inches 70
width/inches 30
height/inches 47
weight/kg 500
bore x stroke/inches 2 3/4 x 3 1/4
wheel material steel
axlebox type plain bearing
cylinder material cast iron
valve type slide
valve gear Stephensons
reverser type pole
governor type Pickering
injector(s) 1
boiler number STW 146
year built 2010
boiler maker Steam Traction World
CE mark yes
working pressure/psi 120
boiler type locomotive
boiler material steel
boiler construction welded, expanded tubes
hydraulic test valid to 24-Sep-2025
steam test valid to 25-Dec-2024
fusible plug yes
safety valve(s) 2
safety valve type Ramsbottom
mechanical pump 1
whistle yes
road speed(s) 2
differential yes