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MOC-89126 1/40 4014 Big Boy RC Train Model Bricks Kit Building Blocks MOC Set 3200PCS+

MOC-89126 1/40 4014 Big Boy RC Train Model Bricks Kit is a 3200+ piece building set featuring a remote-controlled, highly detailed steam locomotive replica. Priced at $279.99, it's ideal for advanced builders and train enthusiasts seeking a display-worthy, functional model.

$279.99

● In stock

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Price and availability may change. Click to see current details on EngineDIYShop.

Key features

  • 1:40 scale Big Boy steam locomotive replica
  • Remote-controlled movement and operation
  • 3200+ high-precision ABS building pieces
  • Accurate 4-8-8-4 wheel configuration
  • 89cm long assembled model with detailed finish
  • Step-by-step illustrated assembly instructions
  • Ideal for display, education, or gifting

Pros

  • +Highly detailed and accurate design
  • +Smooth RC functionality after build
  • +Premium, eco-friendly ABS materials
  • +Excellent for STEM and mechanical learning
  • +Impressive display presence
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Cons

  • Not suitable for young children
  • Advanced build level required
  • Small parts require careful handling

About MOC-89126 1/40 4014 Big Boy RC Train Model Bricks Kit Building Blocks MOC Set 3200PCS+

What is MOC-89126 1/40 4014 Big Boy RC Train Model Bricks Kit Building Blocks MOC Set 3200PCS+?

The MOC-89126 1/40 4014 Big Boy RC Train Model Bricks Kit is a premium 3200+ piece building set that replicates the iconic Union Pacific Big Boy steam locomotive. Designed by morningstrummer on Rebrickable, this MOC (My Own Creation) set delivers a highly accurate 1:40 scale model with a 4-8-8-4 wheel configuration—the only steam locomotive ever built with this design. Measuring 89cm in length, 8.5cm in width, and 13.5cm in height, it combines engineering precision with remote-controlled functionality for an immersive building and operating experience.

Key features

  • Highly Accurate Design — Faithful 1:40 scale reproduction of the Big Boy locomotive with authentic 4-8-8-4 wheel layout.
  • Remote-Controlled Operation — Full RC functionality allows for realistic movement and control after assembly.
  • Premium ABS Construction — Made from high-quality, eco-friendly ABS plastic with precise molding, smooth edges, and vibrant colors.
  • Detailed Instructions — Step-by-step illustrated guide ensures clear, easy-to-follow assembly for complex builds.
  • Display and Gift Ready — Once built, serves as an impressive desktop or shelf display and makes a unique gift for train or model enthusiasts.
  • Educational Value — Enhances STEM learning through hands-on mechanical assembly and engineering principles.
  • After-Sales Support — Sold by EngineDIYShop with attention to safe handling due to small parts.

Who is MOC-89126 1/40 4014 Big Boy RC Train Model Bricks Kit Building Blocks MOC Set 3200PCS+ for?

This set is tailored for advanced hobbyists, adult LEGO enthusiasts, and railroad history buffs seeking a challenging and rewarding build. It’s also suitable for educators or parents looking for STEM-focused projects for older teens. Given its complexity and RC features, it’s not recommended for young children. The model’s size and visual impact make it ideal for collectors and display purposes.

How does MOC-89126 1/40 4014 Big Boy RC Train Model Bricks Kit Building Blocks MOC Set 3200PCS+ compare?

Compared to standard polypropylene brick sets or basic train models, this MOC set offers superior scale accuracy, remote control functionality, and a unique historical design. It surpasses typical static display models by integrating motion and mechanical realism. While not an official LEGO set, its precision and build quality rival premium licensed sets, especially in the niche of large-scale locomotive replicas.

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Best use cases

  • Advanced hobbyist building project
  • RC train model collection display
  • STEM education for older teens
  • Unique gift for train enthusiasts
  • Historical engineering showcase
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Is MOC-89126 1/40 4014 Big Boy RC Train Model Bricks Kit Building Blocks MOC Set 3200PCS+ right for you?

This set is best for advanced builders aged 14+ with experience in complex brick models. It requires patience and attention to detail due to its 3200+ pieces and RC integration. Ideal for train enthusiasts or STEM-focused learners. If you prefer simpler builds, consider smaller-scale train sets. For similar realism without RC, explore static MOC locomotive kits.

How it compares: Compared to standard brick train sets, this MOC offers superior scale, remote control, and historical accuracy. It outperforms basic display models with functional mechanics and premium materials, positioning it as a top-tier choice among enthusiast-grade building kits.

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Frequently Asked Questions

What is the scale of the MOC-89126 Big Boy RC Train Model?

The model is built at a 1:40 scale, accurately representing the Union Pacific Big Boy locomotive with precise proportions and a 4-8-8-4 wheel configuration.

Does the MOC-89126 set include remote control components?

Yes, the set includes all necessary parts for remote-controlled operation, allowing the assembled train to move forward, backward, and turn with precision.

How many pieces are in the MOC-89126 kit?

The kit contains 3200+ high-quality ABS building pieces, designed for a detailed and durable assembly of the Big Boy locomotive model.

Is the MOC-89126 suitable for children?

It is recommended for ages 14 and up due to small parts and complex assembly. Adult supervision is advised for younger builders.

Can this model be used for educational purposes?

Yes, the kit supports STEM learning by teaching mechanical assembly, engineering concepts, and historical context of steam locomotives through hands-on building.

How much does MOC-89126 1/40 4014 Big Boy RC Train Model Bricks Kit Building Blocks MOC Set 3200PCS+ cost?

MOC-89126 1/40 4014 Big Boy RC Train Model Bricks Kit Building Blocks MOC Set 3200PCS+ is $279.99 at EngineDIYShop. Prices may change — click through to EngineDIYShop for the latest.

Is MOC-89126 1/40 4014 Big Boy RC Train Model Bricks Kit Building Blocks MOC Set 3200PCS+ in stock at EngineDIYShop?

Yes, MOC-89126 1/40 4014 Big Boy RC Train Model Bricks Kit Building Blocks MOC Set 3200PCS+ is currently in stock at EngineDIYShop.

Are there coupon codes for EngineDIYShop?

Yes — Love Those Deals currently tracks 4 active EngineDIYShop coupons. See the coupons section on this page to copy a code before checkout.

Specifications

SKU
3384665
Last updated May 14, 2026