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 E

March 13, 2024March 13, 2024 Master Builder 4831 Views

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

  • ← 6391 – Back D
  • 6391 – Back F →

You May Also Like

6808 – Back B

January 21, 2021May 18, 2023 Master Builder

6465: Space Port Jet

March 3, 2025March 3, 2025 Master Builder

6396 – Inside A

July 14, 2021July 14, 2021 Master Builder

Book 200 – Page 48-49

November 2, 2021November 11, 2021 Master Builder

6951 – Back C

September 21, 2019October 25, 2021 Master Builder

1750 – Back C

July 13, 2021July 13, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

2333: Animal
Basic Set Duplo Duplo Sets Official Sets Very Small Builds 

2333: Animal

May 16, 2023May 16, 2023 Master Builder

Year Released: 1987Bricklink

6642: Police Helicopter
Classic Town Official Sets Police Small Builds Town Town Sets 

6642: Police Helicopter

April 8, 2020April 8, 2020 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
1616: Space Combi-Pack
Bonus/Value Packs Futron Sets Futuron Official Sets Small Builds Space 

1616: Space Combi-Pack

September 6, 2023September 6, 2023 Master Builder
801: Gear Set
Gears Medium Builds Official Sets Universal Building Set 

801: Gear Set

December 17, 2025December 17, 2025 Master Builder
7783: The Batcave: The Penguin and Mr. Freeze’s Invasion
Batman I BATMAN™ BATMAN™ Sets Extra Large Builds Official Sets 

7783: The Batcave: The Penguin and Mr. Freeze’s Invasion

March 27, 2026March 27, 2026 Master Builder
6384: Police Station
Classic Town Large Builds Official Sets Police Town Town Sets 

6384: Police Station

December 28, 2021December 28, 2021 Master Builder
1967: System Bonus Pack
Bonus/Value Packs Classic Space Classic Space Sets Duplicate Set Number Official Sets Small Builds Space 

1967: System Bonus Pack

February 13, 2025February 13, 2025 Master Builder
6493: Flying Time Vessel
Large Builds Official Sets Time Cruisers Time Cruisers Sets 

6493: Flying Time Vessel

July 14, 2021December 29, 2021 Master Builder
8926: Toa Undersea Attack
BIONICLE BIONICLE Sets Large Builds Official Sets Playsets 

8926: Toa Undersea Attack

March 3, 2026March 3, 2026 Master Builder
4559: Cargo Railway (High Speed Train Starter Set)
9V Extra Large Builds Official Sets Town Train Train Sets 

4559: Cargo Railway (High Speed Train Starter Set)

October 26, 2026October 26, 2026 Master Builder
6261: Raft Raiders
Medium Builds Official Sets Pirates Pirates I Pirates Sets 

6261: Raft Raiders

April 7, 2026April 7, 2026 Master Builder
1476: 5 Set Bonus Pack
Bonus/Value Pack Sets Bonus/Value Packs Official Sets Small Builds 

1476: 5 Set Bonus Pack

July 22, 2024October 2, 2024 Master Builder
5978: Sphinx Secret Surprise
Adventurers Adventurers Sets Desert Large Builds Official Sets 

5978: Sphinx Secret Surprise

October 28, 2019April 4, 2020 Master Builder
4554: Metro Station
9V Extra Large Builds Official Sets Town Train Train Sets 

4554: Metro Station

August 10, 2026August 10, 2026 Master Builder
6017: King’s Oarsman
Castle Castle Sets Lion Knights Official Sets Small Builds 

6017: King’s Oarsman

September 24, 2024September 24, 2024 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.