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Description
Haynes DIY Assembly Mini L4 Simulation Transparent Runnable Engine ModelHaynes DIY Assembly Mini L4 Simulation Transparent Runnable Engine Model Features: . Explore the mysteries under the hood of the car! L4 simulation engine, the parts are designed according to the real engine, and the assembly experience is different. The model can be run after assembly, and it has sound waves, the outer shell is transparent, and it can be seen directly inside the engine. . The product comes with detailed assembly instructions, a total
Haynes DIY Assembly Mini L4 Simulation Transparent Runnable Engine ModelFeatures:
.Explore the mysteries under the hood of the car! L4 simulation engine, the parts are designed according to the real engine, and the assembly experience is different. The model can be run after assembly, and it has sound waves, the outer shell is transparent, and it can be seen directly inside the engine.
.The product comes with detailed assembly instructions, a total of more than 100 components, including spark plug LED lights and sound base. The components are assembled with screws or bolts to ensure a good assembly experience without glue. Build a fully functional simulation inline four-cylinder engine model in 2.5 hours, and experience the fun of technology with you and your family!
.Working Model: The crankshaft connecting rod and piston are all available, and the engine sound wave module is integrated. In the transparent housing parts, you can see the mechanical structure and inside of the horizontally opposed engine. The crankshaft, pistons and valves operate like the original engine, and even the engine ignition sequence corresponds to each other.
.Instructions for Use: A certain hands-on ability is required, and younger ages can allow parents to assemble together. After assembling the finished product, the battery will provide power to drive the engine to run, so that the engine ignition sound starts when the piston starts to inhale and the flywheel rotates. You can watch the working principle of the engine, the speed is very slow, suitable for teaching. The battery needs to be prepared by yourself.
.Use Significance and Value: Let adults and children explore the working principle of car engines together, a good hands-on science experience after the model is built, you can use the battery-driven function to create your own straight four-engine model. The model design allows you to easily assemble them together and makes it easier for you to understand the working principle of a full-size four-stroke car engine.
.For Age: 10+.
Specifications:
.Color: As Shown
.Material: Plastic
.Product Weight: 1800g
.Package Dimensions: 11 x 30 x 42cm
.Package Weight: 2000g
.Packing: Graphic Carton
Package Content:
.1 x Engine Model
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- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.1 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Dog is Happy!
Color: 3PC-Peanut Butter-Green, Pattern Name: Tough Dog Toys
My dog likes the bones, especially because they are peanut butter-flavored. The bones are very strong and well-made, so they are good for heavy chewers. By the way, these bones are very large for big dogs only!
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Reviewed in the United States on May 15, 2026
★★★★★ 5
They last for months
Color: 3PC-Bacon-Brown, Pattern Name: Tough Dog Toys
This is my second order of this product. I have 2 medium size dogs and they love them. The nice thing is a 3 pack of these is that they will last them for a few months.
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Reviewed in the United States on June 9, 2026
★★★★★ 4
Bones
Color: 3PC-Bacon-Brown, Pattern Name: Tough Dog Toys
Great product but my dogs don't seem to be interested
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Indestructible
Color: 3PC-Bacon-Brown, Pattern Name: Tough Dog Toys
Finally found a chew bone strong enough for our pit mix, would highly recommend for an agressive chewer! Will buy again
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Reviewed in the United States on June 12, 2026
★★★★★ 5
My four approve
Color: 3PC-Bacon-Brown, Pattern Name: Tough Dog Toys
My dogs, which I have 4, 2 labradors, one Jack Russell and one medium smallish mixed breed dog, all really love the bones. Three of them seem to be vigorous chewers the mixed breed girl being the toughest one on bones. These bones are holding up really well and the dogs really seem to like them. The dogs have not been able to get any big chunks off of the bones so I feel safe letting them have them even when I’m not watching. I would recommend these to Pet owners.
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Reviewed in the United States on May 22, 2026