We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Colourful plastic building blocks in a box with PDF instructions

ZITIANYOUBUILD

ZITIANYOUBUILD educational

SKU CH-SA1T-7ZG4C

A 100% LEGO-compatible MOC-158931 reciprocating engine building set with PDF instructions for ages 14+ to develop spatial skills and creativity

  • TypeToy Interlocking Building Sets
  • ThemeStar Wars
  • Manufacturer Recommended Age14+
  • ColorMulti-Color
  • Color MappingMulti-Color
  • MaterialPlastic
  • Compatible with major brick brands for easy expansion
  • 100% LEGO-compatible pieces integrate with existing collections
  • ABS plastic construction resists breaking and bending
  • Develops spatial recognition and hands-on problem-solving skills
  • Includes wheels and axles for moving model creations

Reciprocating Engine MOC-158931 Building Set

This custom MOC-158931 set provides a dynamic reciprocating engine model built from interlocking plastic bricks. The kit includes one building toys set with PDF instructions for assembly. It is designed for builders aged 14 and older who enjoy mechanical construction projects.

Compatible With Major Brick Brands

The ABS plastic bricks are fully compatible with LEGO and other major building block systems, fitting tightly for stable builds. The multi-colour selection includes various shapes, wheels and axles to expand creative possibilities. This set suits hobbyists who want brand-agnostic parts, but it is not for buyers seeking officially licensed Star Wars models or motorised functions.

Verify Age Suitability And Parts Inventory

Confirm the intended builder meets the 14+ age recommendation before ordering. Check that the PDF instruction format works with your devices, as no printed manual is included. Ensure you have a clean workspace for sorting the many small pieces supplied in the single set package.

Highlights

  • Compatible with major brick brands for easy expansion
  • 100% LEGO-compatible pieces integrate with existing collections
  • ABS plastic construction resists breaking and bending
  • Develops spatial recognition and hands-on problem-solving skills
  • Includes wheels and axles for moving model creations

Specifications

BrandMarvel
TypeToy Interlocking Building Sets
ThemeStar Wars
Manufacturer Recommended Age14+
ColorMulti-Color
Color MappingMulti-Color
MaterialPlastic
GenderUnisex
AgeTeen
Sports TeamNO
FormatGames & Puzzles

Questions about this item

Does the ZITIANYOUBUILD set require a baseplate or existing bricks to start building?

The set includes a full assortment of bricks, wheels and axles so no extra pieces are needed to complete the MOC-158931 reciprocating engine model.

Will the bricks in this set hold firmly with the LEGO Technic elements I already own?

Yes, the ABS bricks are 100 % compatible with LEGO and all major brands, clamping tightly on existing Technic pins, axles and studs.

How can I confirm the reciprocating motion works once the model is assembled?

Turn the crank by hand; the pistons should move smoothly in sequence, showing the engine cycle without binding or loose connections.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.