Skip to content

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
- Town
- Universal Building Set
- Western
- More Sets
- Misc
USEFUL LINKS
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Airport Alternate Builds Classic Town Instructions Added Small Alt Build Small Builds Town Town Alternate Builds

6673 – Back A

April 20, 2025April 21, 2025 Master Builder 2921 Views

From: 6673: Solo Trainer
Name: Universal Trainer ¹
Instructions: View PDF

Contributions

Name and PDF submitted on April 20, 2025 by: KILDET

← 6900 – Back A
6673 – Back B →

You May Also Like

6541 – Back G

February 5, 2023February 13, 2023 Master Builder

7119 – Back B

February 26, 2023February 26, 2023 Master Builder

6852 – Back B

September 22, 2020October 25, 2021 Master Builder

1974-2 – Back A

September 7, 2023September 7, 2023 Master Builder

4593 – Instructions A

January 27, 2025February 21, 2025 Master Builder

6890 – Back C

October 7, 2019November 18, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

ABCs Official Sets Race Town Town Sets Very Small Builds

6677: Motocross Racing

June 8, 2023July 31, 2023 Master Builder

Year Released: 1986BricklinkInstructions *Alternate Build Connection: 1986 Medium US (112717/112817-US)

Large Builds Official Sets Star Wars Star Wars Sets

7140: X-wing Fighter

November 10, 2019April 17, 2020 Master Builder

Large Builds Model Team Model Team Sets Official Sets

5521: Sea Jet

January 12, 2021January 31, 2026 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6803: Space Patrol

September 21, 2019February 15, 2026 Master Builder

Indians Official Sets Very Small Builds Western Western Sets

2846: Indian Kayak

October 10, 2023October 10, 2023 Master Builder

Classic Town Official Sets Race Small Builds Town Town Sets

6646: Screaming Patriot

March 16, 2022March 16, 2022 Master Builder

Adventurers Adventurers Sets Dino Island Official Sets Small Builds

5920: Island Racer

July 26, 2020July 26, 2020 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6844: Seismologic Vehicle (Sismobile)

October 22, 2019September 10, 2023 Master Builder

Official Sets Power Miners Power Miners Sets Small Builds

8956: Stone Chopper

March 27, 2026March 27, 2026 Master Builder

Classic Town Fire Medium Builds Official Sets Town Town Sets

6358: Snorkel Squad

April 15, 2021April 15, 2021 Master Builder

Airport Classic Town Medium Builds Official Sets Town Town Sets

6440: Jetport Fire Squad

December 29, 2021December 29, 2021 Master Builder

Fire Official Sets Small Builds Town Town Sets World City

7043: Firefighter

January 22, 2024January 22, 2024 Master Builder

Classic Town Gas Station Official Sets Small Builds Town Town Sets

671: Shell Fuel Pumper

October 20, 2019April 4, 2020 Master Builder

Castle Castle Sets Dragon Knights Official Sets Very Small Builds

1732 (1712): Crossbow Cart

August 19, 2024October 8, 2024 Master Builder

Large Builds LL Link Official Sets Police Town Town Jr Town Sets

6332: Command Post Central

June 4, 2024July 11, 2024 Master Builder

Divers Medium Builds Official Sets Town Town Sets

6442: Sting Ray Explorer

December 29, 2021December 29, 2021 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

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
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.