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

Alternate Builds Classic Town Harbor Instructions Added Medium Alt Build Medium Builds Town Town Alternate Builds

6541 – Back D

February 5, 2023February 12, 2023 Master Builder 3922 Views

From: 6541: Intercoastal Seaport
Name: Engine Swap Bay ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on February 5, 2023 by: Valdis

← 6899 – Back C
6541 – Back F →

You May Also Like

4555: Cargo Station

January 2, 2024January 2, 2024 Master Builder

6952 – Back D

September 22, 2019September 28, 2019 Master Builder

8876 – Back B

January 20, 2026January 20, 2026 Master Builder

Book 200 – Page 8-9

November 2, 2021November 11, 2021 Master Builder

1974-3 – Back A

September 7, 2023September 7, 2023 Master Builder

920 – Back C

February 2, 2021October 25, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

Episode II Episode IV/V/VI Medium Builds Official Sets Star Wars Star Wars Sets

4500: Rebel Snowspeeder

April 9, 2020April 9, 2020 Master Builder

Year Released: 2003202 PiecesBricklink

ABCs M:Tron M:Tron Sets Official Sets Small Builds Space

6877: Vector Detector

June 7, 2021October 14, 2024 Master Builder

Castle Castle Sets Dragon Knights Official Sets Small Builds

6056: Dragon Wagon

December 28, 2021June 30, 2022 Master Builder

Extra Large Builds Official Sets Technic Technic Sets

8860: Car Chassis (Auto Chassis)

January 2, 2024January 2, 2024 Master Builder

Classic Town Official Sets Town Town Sets Traffic Very Small Builds

6530: Sport Coupe (City Car)

April 4, 2020April 19, 2021 Master Builder

Large Builds Official Sets Samsonite Samsonite Sets Town Town Sets

725-3: Town Plan

October 9, 2024October 9, 2024 Master Builder

Island Xtreme Stunts Island Xtreme Stunts Sets Medium Builds Official Sets

6735: Air Chase

April 7, 2026April 7, 2026 Master Builder

Blacktron II Blacktron II Alternate Builds Blacktron II Sets Jørn Thomsen Large Builds Official Sets Space Super Model

6861: Blacktron Super Model

July 29, 2023July 29, 2023 Master Builder

ABCs Large Builds Official Sets Space Spyrius Spyrius Sets

6949: Robo-Guardian

October 23, 2019August 15, 2023 Master Builder

ABCs Airport Classic Town Extra Large Builds Official Sets Town Town Sets

6392: Airport

June 28, 2022August 16, 2023 Master Builder

Official Sets Power Miners Power Miners Sets Small Builds

8956: Stone Chopper

March 27, 2026March 27, 2026 Master Builder

Classic Town Off-Road Official Sets Town Town Sets Very Small Builds

1730: Snow Scooter

April 11, 2023April 11, 2023 Master Builder

Cowboys Jørn Thomsen Official Sets Small Builds Western Western Sets

6716: Weapons Wagon

April 2, 2022July 29, 2023 Master Builder

Black Knights Castle Castle Sets Official Sets Small Builds

6018: Battle Dragon

October 5, 2019April 4, 2020 Master Builder

ABCs Aquanauts Aquazone Aquazone Sets Box Plus Official Sets Playscape/Play Stage Box Small Builds

1728 (6145): Crystal Crawler {with Aqua Playscape}

August 1, 2023March 22, 2025 Master Builder

Classic Town Medium Builds Official Sets Recreation Town Town Sets

6359: Horse Trailer

October 8, 2024October 8, 2024 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.