Miniature Road Steam


4″ scale Ruston Proctor Steam Tractor SO677

Model Type Steam Tractor
Boiler Construction Welded Steel
Boiler Maker Unknown
Boiler Year Unknown
Road Registered? No
Condition Ready to go
Asking Price £10,995

Presented for sale we have this 4” scale Ruston Proctor which is a good example and an ideal starter engine. Unfortunately the early history of it is unknown as we presume the paperwork must’ve gone astray at some point however it has a series of boiler reports from the seller’s ownership dating back to his purchase in c. 2015. This design has been offered by a number of companies in both kit form and as castings over the years – we presume this is a castings built engine, potentially to Live Steam Model’s design.

Key Features:

  • Welded steel boiler made by an unknown maker. It is supported by a history of boiler reports dating back to 2015. Feel free to contact us to find out about the boiler testing options going forward.
  • Working pressure 90 PSI.
  • Two-speed, single cylinder arrangement. It is a lightweight design based on the diminutive 3 ½ ton SD tractor.
  • Mechanical water pump and injector fitted for filling the boiler when in steam, as standard.
  • Mechanical foster lubricator, whistle and pressure release valves.
  • Mechanically, the engine has been built to an acceptable standard throughout. It is showing signs of age however looks presentable and turns over freely. It will, of course, be checked for running prior to leaving our workshop with the buyer.
  • Cosmetically, the paintwork isn’t the finest we have seen but suits the style of engine. It is presented in the typical brown livery of the Ruston tractor – this has been hand painted and shows brush marks. Having said that, it is certainly presentable and cleans up nicely – certainly showable and one to enjoy either as it is or after a winter of painting in the workshop.
  • The wheels are mounted on rubber tyres. It is also fitted with a canopy which adds to its charm.

Overall, a pleasant engine which is a step above the standard 3” scale traction engine and is priced to give the buyer some scope to make it their own!

Asking Price – £10,995

Warranty and Aftercare – All our ‘ready to go’ miniature steam traction engines include a 3-month warranty and a subsequent 33 months of technical support!

We always encourage prospective buyers to view vehicles and steam engines in person prior to purchase. This engine is advertised for sale by Berrybrook Steam & Classics on behalf of the owner and seller.

For more information, please speak to Matt on 01392 833301 or email [email protected]

As with all our miniature steam traction engines listed for sale, we recommend viewing in person where possible. Appointments are recommended so please try to contact us before travelling for a viewing. 

Please ask about our flexible part-exchange options. Delivery can be arranged to anywhere in the UK, and beyond, at buyer’s expense.

Height 37 3/4 inches
Width 20 inches
Length 49 inches
Weight (approx.) 200kg

Please note – dimensions and weights indicated above are approximate for guidance only. They exclude any easily removable components such as trailers, seats, spark arrestors etc and are supplied to give an indication of the storage or van space needed!

For Sale


Do you want to get involved in the world of steam? Are you considering buying a miniature steam engine? Are you stuck for a gift idea or are you simply looking for a good day out?

If so, we offer two different style days, tailored to suit your needs…

We offer a ‘Traction Engine Experience Day’, perfect as a gift and a fun day out learning a bit about what running a steam engine involves. We also offer a ‘Miniature Driving Lesson’ which is a half day course in the practical use of a scale traction engine.

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We specialise in the sale of steam engines and historic vehicles of all shapes and sizes! 

If you are looking to sell your steam engine or historic vehicle, we make both cash offers and sell on commission and would be more than happy to discuss the sale of your vehicle with you.

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Visit the official Berrybrook Steam & Classics online shop where we sell a range of steam-related products including gifts, parts and accessories for your miniature steam engine, gift vouchers for steam experience days and branded clothing!

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Milbury Model Company

We are delighted to announce the launch of our brand new partner website, the Milbury Model Company!

Our newest department is dedicated to supplying high-quality, brand new model and toy-sized steam engines, spares, accessories, gifts and more…

We are an official stockist for the complete range of Wilesco products which is sold from our Devon-based shop and is available to buy online.

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The Berrybrook Blog

Looking to find out more about the preservation movement, traction engines, historic vehicles or our heritage?

The Berrybrook Blog visits a range of topics to interest all readers!

See our Blog

We can help you sell…

We specialise in selling steam engines and historic vehicles of all shapes and sizes.

If you are looking to sell your steam engine or historic vehicle, we make both cash offers and sell on commission.

Find out more

Opening Hours















Our showrooms are open to anyone and you are more than welcome to pop in to say hello, regardless of whether a purchase is on your mind or not!

*We are occasionally open on some Saturdays by prior agreement only – please ring 01392 833301 on a normal working day to arrange a visit.

We are typically closed on Bank Holidays.

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Many of our local regulars know that we host annual ‘Boiler Test Days’ every Spring. It is attended ...

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