Discovery Model Engine Building Kit, DIY 4-Cylinder Combustion Engine, Working Pistons Fan Valves Belts LED Lights, STEM Mechanic Engineering Construction Experiment Set, Kids & Adults Gift
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 3 left in stock, order soon!
Arrives
Monday, Dec 15
Features
- DEVELOP THEIR CRITICAL THINKING SKILLS: The Discovery Kids DIY Toy Model Engine Kit will encourage young boys and girls to expand their creativity, think logically, and even refine their motor skills all at once!
- ALL THE TOOLS THEY NEED TO SUCCEED: Your child will have a great time constructing this comprehensive model engine toy! Tinker with the cranks, pulleys, belts, and exhaust valves to make this little gadget come to life right in front of their eyes!
- REV IT UP: Deliver the action of a classic car engine thanks to the powerful pistons and interactive cables! Simply plug the cables to the battery pack distributor and watch the engine fans turn around!
- LET YOUR CHILDREN GET HANDS ON with the Discovery Kids DIY Toy Model Engine Kit! This mini replica of a classic four cycle internal combustion gasoline car engine teaches young minds all about the wonderful world of mechanical engineering in one immersive set; It's the perfect holiday or Christmas gift for any child!
Product Dimensions: 2.72 x 12.17 x 14.96 inches
Item Weight: 3 pounds
Item model number: 1014810
Manufacturer recommended age: 8 years and up
Batteries: 2 AA batteries required.
Is Discontinued By Manufacturer: No
Release date: March 27, 2018
Manufacturer: MerchSource
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Dec 15
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
This is great. Needs patience and focus and careful reading of the instructions. My seven year old was in and out of the process but loved it. Great value for money and a great educational tool. He’s talking about pistons, cam shafts and con rods like a pro.
Reviewed in the United States on August 12, 2025 by GARETH ROBERTS
My son is obsessed with motors, fans, things that move, etc. so I bought this kit for him to put together and play with. We've had this kit for almost a year and he still plays with this (takes pieces off and puts them back on, tries the pieces in different spots to see what will happen, pretends to fix it like he's seen my dad do, etc.). He was 4 y/o when I bought this and he did need hand over hand help putting it together the first time. With practice, he's now capable of taking off most pieces and putting them back on himself. As long as your child knows how to use a screwdriver, can handle small pieces, and knows how to read instructions, they will be able to put this together without help. Once its assembled, I would say its appropriate for kids 3 y/o and older so long as they know NOT to put small items in their mouths.
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Reviewed in the United States on December 27, 2024 by Lynn Daniels
As mentioned by most all reviewers, this engine model was a bit difficult to complete. The actual motor parts are fairly straightforward and assemble easily. However, the actual plastic this is crafted from is unusually brittle, and will crack if you draw down too tightly on the screws. Was able to get it together in slightly over 2 hours, but getting it to actually RUN by way of the small electric motor was considerably more difficult. Major issue with POOR alignment of the electric motor pinion gear and the "flywheel" get on the motor model. When mounting the small electric drive motor to the back of the model you could easily see the pinion gear barely touched the flywheel drive gear. Applying power to the drive motor resulted in much gear grinding as the crankshaft end piece flexed enough to completely disengage the gears. Used a Dremel to sand down the electric motor screw mounting pins and was able to get a more substantial alignment of the gears. However, with battery power applied the crankshaft end would flex "UP" and away from the pinion gear causing it to slip. Fortunately, using a small plastic bushing from a TV wall mount kit was able to fashion a bushing which slips over the flywheel spacer bushing and is large enought to ride along the outer rim of the flywheel ring gear providing just enough DOWN force to hold the flywheel gear in alignment with the electric motor ring gear. Motor now runs nice and smooth. Kit maker needs a serious redesign of their drive motor gearing, and consider adding a small plastic bushing to hold down the crankshaft end so it maintains alignment with pinion gear when power is applied to the model.
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Reviewed in the United States on December 19, 2020 by KJ Dena
This was so fun for my son to put together. He loved it! He is 10 and basically did it all by himself and learned a lot. Definitely recommend.
Reviewed in the United States on November 22, 2025 by Emilie D
Bought this for my eight year old grandson for Christmas. He’s love putting things together. He’s a “I want to know how things work child”.
Reviewed in the United States on November 22, 2025 by Ann M.
I would give this 3.5 if I could. It basically is what it says as far as the product, but it isn't in my opinion good for smaller kids - it is definitely something a kid and adult need to build together. The instructions are okay, but not great, you really need to pay close attention to orientation of certain parts, or you will end up taking it back apart later. It is built with dozens of tiny metal screws. There is a small screwdriver included. The kid's small fingers are good at handling the screws and getting some started, but it took Dad to get them properly tightened. PRO Tip: There are places, esp. in step 6 where it is really difficult to get the screw aligned in the hole. Get a strong magnet and magnetize the screwdriver (by rubbing the screwdriver across the magnet a bunch of times). This allows the screw to stick to the screwdriver while you shove it through the plastic. Some parts, like the cams, have a part number but it is nearly impossible to read. Again the kid with better eyes was needed. As for usefulness in teaching how the engine works, it's so-so. Everything does move as it should. I was very careful to get the cam shaft together in the specified order, so the valves basically open and close in a logical sequence. If you want them to match the piston movements you will just need to keep moving the timing belt until it looks okay. There are led "spark plugs" - make sure you get the correct one on the correct cylinder. They are controlled by a small distributer that goes on the end of the cam shaft. I was very surprised to see that the gearing inside just seems to be wrong. Meaning, if a plug lights up when the piston is at the top, then a few rotations later, it is lighting up when the piston is only half way. So in the end, along with explaining how an engine works, there was a lot of having to point out how the model didn't match up well. I wish that was better.
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Reviewed in the United States on November 20, 2025 by Ed
My nephew absolutely loved it and spent two weeks straight assembling it. I recommend this for the little boys in your life who have an interest in cars or science experiments or both!
Reviewed in the United States on September 29, 2025 by Amazon Customer
I got this for my niece as a gift for her 14th birthday. She absolutely loved it! It was challenging enough to keep her busy for about a week. The parts all worked as stated. It lights up and sparks as described. It is made of plastic, but is sturdy. She now has it displayed proudly in her room.
Reviewed in the United States on June 4, 2025 by Senta Serrano