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WORKING ENGINE MODELS · METAL DIY KITS

Build a real engine. Watch it run.

Shop working V8, Stirling, steam and turbofan model kits—precision metal builds for makers, collectors and engineering enthusiasts.

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Flying-Bird Single-Cylinder Stirling Engine Model

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Flying-Bird Single-Cylinder Stirling Engine Model

Flying-Bird Single-Cylinder Stirling Engine Model is a finished single-cylinder hot-air engine that integrates a hollow flying-bird silhouette with vi..

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$68.59 $140.61

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RW-V4 Reversible Four-Cylinder Marine Steam Engine Model

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RW-V4 Reversible Four-Cylinder Marine Steam Engine Model

RW-V4 Reversible Four-Cylinder Marine Steam Engine Model is a compact flagship V-four reciprocating steam engine engineered for smooth reversible outp..

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$937.85 $1,922.59

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RETROL & OKMO B01 Ball-Top Hit-and-Miss Engine Model

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RETROL & OKMO B01 Ball-Top Hit-and-Miss Engine Model

RETROL & OKMO B01 Ball-Top Hit-and-Miss Engine Model is a distinctive red vertical gasoline engine with a spherical water hopper, exposed mechanical i..

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$470.39 $964.30

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Built for people who want to know how machines work

Engineering detail, presented with collector-grade clarity.

Every collection is organized by mechanism and operating method, so you can compare assembly complexity, material, scale, power source and display purpose without guessing. EnginesDIY is designed to help builders choose confidently—not simply browse more products.

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7Purpose-built engine collections with clear navigation

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360°Product galleries covering structure, detail and configuration

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Shop Engine Models by Type

Shop model engine kits, working engine models, steam and Stirling engines, internal combustion models, turbofan kits and radial engine kits. Compare assembly difficulty, operating method, materials and display size to choose the right DIY mechanical project.

Model Engine Kits

Detailed metal assembly projects for builders and collectors.

Steam Engine Models

Classic steam mechanisms for operation, learning and display.

Stirling Engine Kits

Heat-powered engines that demonstrate external combustion.

Turbofan & Jet Engine Kits

Aircraft engine structures with visible compressor and turbine detail.

Internal Combustion Models

Working and educational piston-engine models.

Hit & Miss Engines

Collectible stationary engines with exposed flywheels.

Radial Engine Kits

Aircraft-inspired radial mechanisms for building and display.

What are people saying about us

Arrived early, packaged perfectly, beautiful model and a very well received gift for my car enthusiast OH he is over the moon with it

- charlibaltimore

This is the 8th model I have built from this company, and once again I'm completely satisfied. It is beautiful and the workmanship is wonderful, I highly recommend it.

- chromebandit

Have build many of these, and for a plastic model, this is one of the best. All parts were included and assembled model runs perfectly. For the price, can't be beat.

- kellyhorne

Very well made and detailed. Instructions were a little to non understandable but made out. Surprised all the parts where there, only the switch hold down but was missing

- TBNWorld

I was looking for something challenging and I didn't want to be able to finish it in a day or two. This was perfect. I worked on it a little here and a little there and it took a few weeks to finish and that was exactly what I wanted this to be.

- sacredcirclegifts

High quality, great instructions and fun to build. It took me a little onger than spec'd but i would not have minded it being even longer. This is my first model. I hope there are comparable projects like this.

- thewiltingwick

Love the V8. I ran in a small issue and contacted consumer services. Very responsive and I am completely satisfied. Looking forward to my next purchase.

- DocDisco81

Bought as a gift for an older gentleman and he loved it..all metal pieces and so easy to put together..the instruction manual was easy to read. Just wish there was more like this.

- janmakuc

Very much fun to build. All metal parts fit precise and the manual has for each building step easy to understand drawings and descriptions. The model engine looks great and also works well.

- graigkarl

It was a present for my brother who graduated in mechanical engineering! He simple loved! It was perfect!

- lloydstoltz