Our verdict
The NikolaToy TR900 is an eye-catching, 3D-printed turbofan engine model styled after a large airliner engine, with a cutaway look that shows the fan, compressor and turbine stages. It is available ready to display or as a DIY kit for about the same price, which makes it a great gift for aviation and engineering fans. The main drawback is the very limited official product information; check details such as power and movement with NikolaToy before buying.
Pros & cons
Pros
- Detailed cutaway styling that shows the engine's internal stages
- Choice of assembled model or DIY kit at nearly the same price
- Good display size (25 × 12 × 10 cm) and light at 450 g
- Ships with NikolaToy's advertised 1-year warranty and parts replacement service
Cons
- Very limited official specifications (power, motor and lighting details aren't listed)
- Made from PLA plastic, not metal
- Return terms on NikolaToy's site are inconsistent
Overview
The NikolaToy TR900 Turbofan Engine Model is one of the store's best sellers and one of its most eye-catching pieces. It is a 25 cm, 3D-printed model styled after a large airliner turbofan, with a cutaway design that shows the fan at the front, the compressor and turbine stages along the core, and the exhaust cone at the back.
This review is based on NikolaToy's official product information and photos as of October 2026. The official specifications are brief, so we stick to what NikolaToy states and point out what you should confirm before buying.
Design and build
The TR900's appeal is visual. The front fan is shown in silver, and the cutaway core is colored to highlight the different sections, from the compressor stages to a red-accented hot section and the exhaust cone, mounted on a branded black stand. It works as a desk or shelf display piece and a conversation starter for anyone interested in how jet engines work.
NikolaToy lists the model as PLA, made with high-precision 3D printing. That keeps it light at 450 g, though it won't have the heft of a metal model.
What isn't listed: the product page doesn't specify whether the fan is motorized, how it is powered or whether the lighting shown in photos is included in both versions. If those matter to you, email NikolaToy before ordering.
Assembled or DIY kit?
| Version | Price | Best for |
|---|---|---|
| Finished product | $89.90 | Gifts and display, ready out of the box |
| DIY kit | $85.90 | Hands-on builders who want to understand the engine's layout |
The two versions are only $4 apart, so choose based on whether the recipient will enjoy the build.
Specifications
- Size: 25 × 12 × 10 cm (10 × 5 × 4 in)
- Weight: 450 g
- Material: PLA
- Manufacturing: high-precision 3D printing
- Regular price: listed at $125, currently $85.90–$89.90
Buying from NikolaToy
NikolaToy offers free standard shipping (7–15 business days, faster for items in its U.S. warehouse) and advertises a 1-year warranty and a parts replacement service on product pages. Its return terms, however, aren't consistent across the site, so confirm them with customer service before buying. Read our full NikolaToy review for details.
Who should buy it?
A great fit if you:
- Want a striking desk display or gift for an aviation or engineering fan.
- Like the idea of building a model engine yourself (DIY kit).
Look elsewhere if you:
- Want a heavy metal model or detailed technical specifications.
- Need guaranteed, clearly documented return terms.
For a science gift that demonstrates real energy conversion, see our guide to the best NikolaToy Stirling engine models.
The bottom line
The TR900 is a fun, good-looking turbofan model at a fair price, with the flexibility of an assembled or DIY version. It earns a solid recommendation as a gift, held back mainly by thin official product information and NikolaToy's unclear return terms.
Specifications
| Model | TR900 turbofan engine model, flagship version |
|---|---|
| Versions | Finished product $89.90 · DIY kit $85.90 |
| Size | 25 × 12 × 10 cm (10 × 5 × 4 in) |
| Weight | 450 g |
| Material | PLA |
| Manufacturing | High-precision 3D printing |
| Shipping | Free standard shipping |
| Warranty | 1 year (as stated on the product page) |
