Skip to content
Back of the Box Builds

Back of the Box Builds

LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • Belville
    • BATMAN™
    • BIONICLE
    • Building Set with People
    • Castle
    • Duplo
    • Fabuland
    • Harry Potter
    • Holiday and Event
    • LEGOLAND
    • Model Team
    • Pirates
    • Space
    • Star Wars
    • Technic
    • Train
    • Town
    • Universal Building Set
    • Western
    • More Sets
    • Misc
  • USEFUL LINKS
    • Submit Instructions!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP
Alternate Builds Cargo Classic Town Large Builds Town Town Alternate Builds 

6391 – Back B

March 13, 2024March 13, 2024 Master Builder 4164 Views

From: 6391: Cargo Center
Name: TBD
Submitted by: USER
Instructions:

  • ← 6391 – Back A
  • 6391 – Back C →

You May Also Like

6776 – Back B

February 12, 2024February 12, 2024 Master Builder

6828 – Back B

January 23, 2025January 30, 2025 Master Builder

2160 – Back B

April 25, 2023April 25, 2023 Master Builder

2162 – Back C

July 18, 2022July 18, 2022 Master Builder

5928 – Back A

February 22, 2023February 22, 2023 Master Builder

6416 – Back A

June 28, 2022June 28, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

6395: Victory Lap Raceway
Extra Large Builds Official Sets Race Town Town Sets 

6395: Victory Lap Raceway

July 1, 2022July 1, 2022 Master Builder

Year Released: 1988BricklinkInstructions

6822: Space Digger
Classic Space Classic Space Sets Official Sets Small Builds Space 

6822: Space Digger

March 12, 2024March 12, 2024 Master Builder
1498: Spy-Bot
Classic Space Classic Space Sets Official Sets Small Builds Space 

1498: Spy-Bot

March 11, 2024March 11, 2024 Master Builder
6932: Stardefender 200
ABCs Futron Sets Futuron Large Builds Official Sets Space 

6932: Stardefender 200

September 24, 2019August 15, 2023 Master Builder
6861: X-1 Patrol Craft
Classic Space Classic Space Sets Official Sets Small Builds Space 

6861: X-1 Patrol Craft

May 4, 2020May 4, 2020 Master Builder
6548: Octan Gas Station
Gas Station Medium Builds Official Sets Town Town Jr Town Sets 

6548: Octan Gas Station

October 12, 2021October 12, 2021 Master Builder
6465: Space Port Jet
Official Sets Small Builds Space Port Town Town Sets 

6465: Space Port Jet

March 3, 2025March 3, 2025 Master Builder
6391: Cargo Center
Cargo Classic Town Extra Large Builds Official Sets Town Town Sets 

6391: Cargo Center

March 13, 2024March 13, 2024 Master Builder
6589: Radical Racer {with Rocky Ridge Playscape}
Box Plus Extreme Team Official Sets Playscape/Play Stage Box Small Builds Town Town Sets 

6589: Radical Racer {with Rocky Ridge Playscape}

February 27, 2023October 8, 2024 Master Builder
5540: Formula I Racer
Large Builds Model Team Model Team Sets Official Sets 

5540: Formula I Racer

February 10, 2026March 4, 2026 Master Builder
6536: Aero Hawk
Airport Classic Town Official Sets Small Builds Town Town Sets 

6536: Aero Hawk

January 22, 2026January 22, 2026 Master Builder
7141: Naboo Fighter
Episode I Medium Builds Official Sets Star Wars Star Wars Sets 

7141: Naboo Fighter

December 29, 2021December 29, 2021 Master Builder
6876: Alienator
ABCs Bjarne Tveskov Blacktron Blacktron Sets Official Sets Small Builds Space 

6876: Alienator

November 16, 2019October 16, 2024 Master Builder
6986: Mission Commander
Bjarne Tveskov Extra Large Builds Official Sets Space Space Police I Space Police I Sets 

6986: Mission Commander

April 3, 2022July 29, 2023 Master Builder
6350: Pizza To Go
Classic Town Food and Drink Medium Builds Official Sets Town Town Sets 

6350: Pizza To Go

April 9, 2020February 3, 2021 Master Builder
6896: Celestial Forager
ABCs Jørn Thomsen M:Tron M:Tron Sets Official Sets Small Builds Space 

6896: Celestial Forager

January 26, 2022July 31, 2023 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

Logo
There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

  • Adventurers
  • Aquazone
  • BATMAN
  • Bionicle
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Fabuland
  • Harry Potter
  • Holiday and Event
  • LEGOLAND
  • Model Team
  • Pirates
  • Space
  • Star Wars
  • Technic
  • Train
  • Town
  • Universal Building Set
  • Western
  • More Sets
  • Misc

Useful Links

  • Submit Instructions!
  • New Instructions
  • New Official Sets
  • New Alternate Builds
  • Minifigs
  • Very Small Builds (<35 pcs)
  • Small Builds (<100 pcs)
  • Medium Builds (<200 pcs)
  • Large Builds (<400 pcs)
  • Extra Large Builds (>400 pcs)
  • How BOTBB was Built

In Honor of 1526

The classic space set that never was.

Copyright © 2026 Back of the Box Builds. All rights reserved. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize, or endorse this site.