---
product_id: 68884414
title: "UGEARS Heavy Boy Truck 3D Puzzle - VM-03 Mechanical Wooden Model Kits for Adults to Build - DIY Wood American Truck with Working Engine 3D Wooden Puzzles for Adults Gift for Christmas"
brand: "ugears"
price: "$238.50"
currency: USD
in_stock: true
reviews_count: 13
category: "U Gears"
url: https://www.desertcart.us/products/68884414-ugears-heavy-boy-truck-3d-puzzle-vm-03-mechanical-wooden
store_origin: US
region: United States of America
---

# 3-mode transmission system 541 precision wooden pieces rubber band-powered working engine UGEARS Heavy Boy Truck 3D Puzzle - VM-03 Mechanical Wooden Model Kits for Adults to Build - DIY Wood American Truck with Working Engine 3D Wooden Puzzles for Adults Gift for Christmas

**Brand:** ugears
**Price:** $238.50
**Availability:** ✅ In Stock

## Summary

> 🚛 Build the legend, drive the legacy—your desk’s next conversation starter!

## Quick Answers

- **What is this?** UGEARS Heavy Boy Truck 3D Puzzle - VM-03 Mechanical Wooden Model Kits for Adults to Build - DIY Wood American Truck with Working Engine 3D Wooden Puzzles for Adults Gift for Christmas by ugears
- **How much does it cost?** $238.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/68884414-ugears-heavy-boy-truck-3d-puzzle-vm-03-mechanical-wooden)

## Best For

- ugears enthusiasts

## Why This Product

- Trusted ugears brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **STEM Meets Relaxation:** Dive into mechanical engineering principles while enjoying a mindful, rewarding build that sharpens creative thinking.
- • **No Glue, No Fuss Assembly:** 541 perfectly engineered wooden pieces snap together seamlessly—no adhesives or special tools required.
- • **Intricate Mechanical Mastery:** Experience the thrill of building a fully functional six-cylinder engine and three-mode transmission—forward, reverse, and idle.
- • **The Ultimate Gift for Makers:** Perfect for professionals and hobbyists craving a sophisticated, hands-on challenge that stands out on any desk or shelf.
- • **Authentic American Truck Detailing:** Every iconic feature from ten wheels to dual exhaust stacks is meticulously crafted for a true-to-life model.

## Overview

The UGEARS Heavy Boy Truck 3D Puzzle is a sophisticated wooden mechanical model kit featuring 541 precision pieces that assemble into a detailed American semi-tractor with a rubber band-powered six-cylinder engine and a three-mode transmission. Designed for adults, it offers a glue-free, tool-free build that educates on mechanical engineering concepts while delivering a visually stunning collectible perfect for gifting or personal challenge.

## Description

Free delivery and returns on eligible orders. Buy UGEARS Heavy Boy Truck 3D Puzzle - VM-03 Mechanical Wooden Model Kits for Adults to Build - DIY Wood American Truck with Working Engine 3D Wooden Puzzles for Adults Gift for Christmas at desertcart UK.

Review: Good - Excellent model
Review: Monster Truck kit - Arrived a day earlier than expected, very well packed. I have made two kits from Ugears and this is similar but more complicated. To date have managed to assemble the gearbox for the drive mechanism. Great fun and cleverly designed. Find I must wax every gearwheel and bearing to ensure the mechanism will turn. But then it does work. I would have thought it a bit too complicated for a 14 year old unless really committed to modelling. It needs time and patience and I find it a challenge and relaxing. Would thoroughly recommend.

## Features

- Functioning Mechanical Systems: 3D wooden puzzle model kit features a rubber band-powered six-cylinder engine, three-mode transmission (forward/reverse/idle), steering front wheels with suspension
- Extraordinary Detail: Captures all iconic elements of American semi-tractors including ten wheels, fifth wheel coupling, massive grille, dual exhaust stacks, mirrors, fuel tanks, and even miniature tools inside the cab
- Educational Value: Adult craft kits demonstrates principles of mechanical engineering, gearing and transmission systems while providing insight into the importance of trucking to the modern economy
- No Glue Required: All 541 pieces of building kits for adults car kit fit together perfectly without adhesives or special tools - like an intricate wooden models for adults
- Exceptional Gift Choice: Perfect present for truck enthusiasts, mechanics, model collectors, puzzle lovers, or anyone nostalgic for the romance of the open road for Birthday, Christmas or Fathers Day

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07DNF2ZJG |
| Age Range Description | Adult |
| Best Sellers Rank | 112,042 in Toys & Games ( See Top 100 in Toys & Games ) 747 in 3-D Puzzles |
| Brand Name | UGears |
| Colour | Natural Wood |
| Country Of Origin | Ukraine |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,361) |
| Educational Objective | Creative Thinking, Motor Skill |
| Global Trade Identification Number | 04820184120860 |
| Included Components | 541 wooden pieces |
| Is Assembly Required | Yes |
| Item Dimensions | 37.8 x 17 x 5 centimetres |
| Item Dimensions L x W | 37.8L x 17W centimetres |
| Item Shape | Rectangular |
| Item Weight | 1300 Grams |
| Manufacturer | UGEARS |
| Manufacturer Part Number | 70056 |
| Material Type | Engineered Wood |
| Material Type Free | Wood, Plastic Free, Latex Free, Lead Free, Bisphenol-A (BPA) Free, Phthalate Free, Polyvinyl Chloride (PVC) Free |
| Maximum Age Recommendation | 1188.00 |
| Minimum Age Recommendation | 168.00 |
| Model Number | 70056 |
| Number of Items | 1 |
| Number of Pieces | 541 |
| Number of Players | 1 |
| Operation Mode | Manual |
| Play Activity Location | Floor |
| Power Source | Manual (Rubber band) |
| Product Style | Heavy Boy Truck |
| Puzzle Type | Assembly & Disassembly |
| Set Name | Heavy Boy Truck VM-03 |
| Size | 541 bitar eller 170mm x 378mm |
| Skill Level | Intermediate |
| Special Features | Self-propelled with rubber band motor |
| Subject Character | Truck |
| Supported Battery Types | No batteries required |
| Theme | Vehicles |
| Unit Count | 1 Count |

## Product Details

- **Brand:** UGears
- **Cartoon character:** Truck
- **Educational objective:** Creative Thinking, Motor Skill
- **Included components:** 541 wooden pieces
- **Manufacturer Minimum Age (MONTHS):** 168.00
- **Material:** Engineered Wood
- **Number of pieces:** 541
- **Product dimensions:** 37.8L x 17W centimetres
- **Puzzle type:** Assembly & Disassembly
- **Theme:** Vehicles

## Images

![UGEARS Heavy Boy Truck 3D Puzzle - VM-03 Mechanical Wooden Model Kits for Adults to Build - DIY Wood American Truck with Working Engine 3D Wooden Puzzles for Adults Gift for Christmas - Image 1](https://m.media-amazon.com/images/I/81hMgPNQ3PL.jpg)

## Questions & Answers

**Q: what is the size of truck and trailer combined?**
A: Truck is 14" and the trailor is 6.5"

**Q: what type of wax should be used for the gears?**
A: Well I use a nightlight candle , or the piece of wax provided , but I don't think I've got the answer yet ! I'm yet to get one of the very complex kits to work satisfactorily.

**Q: Can they be painted during the build process**
A: My Hubby didn't complete this model because there were too many fiddly parts. I think it would be difficult to paint during the building process.

**Q: Is it possible to buy spare parts if broken**
A: I have ordered 2 replacement parts via the ugears website. On both occasions, ugears sent me two copies of the broken part. Their follow-up service is excellent.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by J***M on 17 November 2025*

Excellent model

### ⭐⭐⭐⭐⭐ Monster Truck kit
*by R***R on 10 September 2018*

Arrived a day earlier than expected, very well packed. I have made two kits from Ugears and this is similar but more complicated. To date have managed to assemble the gearbox for the drive mechanism. Great fun and cleverly designed. Find I must wax every gearwheel and bearing to ensure the mechanism will turn. But then it does work. I would have thought it a bit too complicated for a 14 year old unless really committed to modelling. It needs time and patience and I find it a challenge and relaxing. Would thoroughly recommend.

### ⭐⭐⭐⭐⭐ Absolutely hooked
*by D***S on 26 October 2018*

Having put one of the cars together as my first attempt at these superb models and enjoying every minute, I went for the Bigboy truck. The more time I spend building this, the more I realise what a fantastic product it is. The thought that has gone into these is amazing. This one would be a difficult first go, but once you work out the instructions, and what the symbols mean, they are easy to follow. I am half way towards building the Bigboy truck and still enthralled with it. Shut myself in the shed, with the radio on and a cup of coffee, and I lose track of time. Some of the parts take some persuading to come out of the cut-outs and it's no good using brute force as breaking one of the pieces would cause problems. Everything fits together superbly, and it's great when you start to see it shaping up. I love them, and going to spend a fortune on them in the future, but they are worth every penny.

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-21*