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 LEGOLAND LEGOLAND Alternate Builds Small Builds

371-3 – Back A

October 8, 2024October 8, 2024 Master Builder 3503 Views

From: 371: Seaplane
Name: TBD
Submitted by: USER
Instructions

← 371-3: Seaplane
371-3 – Top A →

You May Also Like

6268 – Back A

April 9, 2020April 9, 2020 Master Builder

6265 – Back B

May 28, 2024May 30, 2024 Master Builder

6739 – Back B

April 16, 2026April 22, 2026 Master Builder

6666 – Back B

August 31, 2022September 19, 2022 Master Builder

6542 – Back G

December 22, 2023January 1, 2024 Master Builder

6276 – Back C

November 21, 2023November 29, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Chamber of Secrets Harry Potter Harry Potter Sets Official Sets Small Builds

4731: Dobby’s Release

January 23, 2024January 23, 2024 Master Builder

Year Released: 2002BricklinkInstructions

Castle Castle Sets Lion Knights Official Sets Small Builds

6012: Siege Cart

September 24, 2024September 24, 2024 Master Builder

Duplicate Set Number Official Sets UFO UFO Sets Very Small Builds

6901-2: Space Plane

December 16, 2025December 16, 2025 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6049: Viking Voyager

June 30, 2022June 30, 2022 Master Builder

Box Story Cowboys Jørn Thomsen Large Builds Official Sets Western Western Sets

6761: Bandit’s Secret Hide-Out

December 29, 2021April 3, 2024 Master Builder

Extra Large Builds Official Sets Technic Technic Sets

857: Motorcycle

January 6, 2025January 6, 2025 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6699: Cycle Fix-It Shop

October 28, 2025October 28, 2025 Master Builder

Classic Town Medium Builds Official Sets Recreation Town Town Sets

1817: Sea Plane with Hut and Boat

January 12, 2022January 12, 2022 Master Builder

Bonus/Value Pack Sets Futron Sets Futuron Official Sets Small Builds Space

1974-4: Star Quest

September 7, 2023September 8, 2023 Master Builder

Box Marketing Blurb Large Builds Official Sets Space Space Police I Space Police I Sets

6955: Space Lock-Up Isolation Base

February 3, 2021April 3, 2024 Master Builder

Blacktron II Blacktron II Sets Large Builds Official Sets

6988: Alpha Centauri Outpost

October 24, 2019October 24, 2019 Master Builder

Official Sets Small Builds Space UFO UFO Sets

6818: Cyborg Scout

July 18, 2022July 18, 2022 Master Builder

Classic Town Official Sets Supplemental Town

6347: Monorail Accessory Track

August 27, 2023August 27, 2023 Master Builder

Classic Town Construction Official Sets Town Town Sets Very Small Builds

607: Mini Loader

October 19, 2019April 4, 2020 Master Builder

ABCs Insectoids Insectoids Sets Official Sets Small Builds Space

6907: Sonic Stinger

October 3, 2024March 22, 2025 Master Builder

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

6675: Road & Trail 4×4

March 20, 2023March 20, 2023 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.