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
Airport Alternate Builds LEGOLAND LEGOLAND Alternate Builds Small Builds 

371-3 – Back A

October 8, 2024October 8, 2024 Master Builder 4308 Views

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

  • ← 371-3: Seaplane
  • 371-3 – Top A →

You May Also Like

6534 – Back C

July 8, 2022July 8, 2022 Master Builder

6991 – Back B

September 28, 2019September 28, 2019 Master Builder

6813 – Back B

April 8, 2020October 25, 2021 Master Builder

6693 – Back E

May 10, 2022May 10, 2022 Master Builder

6848 – Back C

March 11, 2024March 11, 2024 Master Builder

6932 – Back A

August 16, 2022May 17, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

6279: Skull Island
Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets 

6279: Skull Island

February 21, 2025February 21, 2025 Master Builder

Year Released: 1995BricklinkInstructions The box reads, “Captain Redbeard and his renegade Pirates want to get their hands on the Imperial

6516: Moon Walker
Launch Command Official Sets Recreation Town Town Sets Very Small Builds 

6516: Moon Walker

April 9, 2020April 9, 2020 Master Builder
6740: Xtreme Tower
Island Xtreme Stunts Island Xtreme Stunts Sets Large Builds Official Sets 

6740: Xtreme Tower

April 16, 2026April 16, 2026 Master Builder
1555: Santa Claus Polybag
Holiday and Event Holiday and Event Sets Official Sets Very Small Builds 

1555: Santa Claus Polybag

April 28, 2023May 5, 2026 Master Builder
6952: Solar Power Transporter
ABCs Classic Space Classic Space Sets Large Builds Official Sets 

6952: Solar Power Transporter

September 22, 2019March 20, 2025 Master Builder
6805: Astro Dasher
Classic Space Classic Space Sets Official Sets Space Very Small Builds 

6805: Astro Dasher

December 10, 2025December 10, 2025 Master Builder
7133: Bounty Hunter Pursuit
Episode II Large Builds Official Sets Star Wars Star Wars Sets 

7133: Bounty Hunter Pursuit

July 14, 2021July 14, 2021 Master Builder
6259: Broadside’s Brig
Imperial Soldiers Official Sets Pirates Pirates I Pirates Sets Small Builds 

6259: Broadside’s Brig

April 16, 2024April 16, 2024 Master Builder
6862: Secret Space Voyager
Large Builds M:Tron M:Tron Alternate Builds M:Tron Sets Official Sets Space Super Model 

6862: Secret Space Voyager

July 29, 2023July 29, 2023 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
6851: Tri-Wheeled Tyrax
ABCs Blacktron II Blacktron II Sets Official Sets Very Small Builds 

6851: Tri-Wheeled Tyrax

October 24, 2019July 31, 2023 Master Builder
6210: Jabba’s Sail Barge
Episode IV/V/VI Extra Large Builds Official Sets Star Wars Star Wars Sets 

6210: Jabba’s Sail Barge

February 1, 2024February 1, 2024 Master Builder
3442: Legoland California Truck Limited Edition
Classic Town Official Sets Small Builds Town Town Sets Traffic 

3442: Legoland California Truck Limited Edition

October 13, 2021October 13, 2021 Master Builder
6034: Black Monarch’s Ghost
Black Knights Castle Castle Sets Official Sets Very Small Builds 

6034: Black Monarch’s Ghost

January 16, 2022January 16, 2022 Master Builder
6381: Motor Speedway
Medium Builds Official Sets Town Town Sets 

6381: Motor Speedway

October 5, 2019February 19, 2023 Master Builder
1702: Fire Fighter 4 x 4
Bonus/Value Pack Sets Classic Town Fire Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space Town 

1702: Fire Fighter 4 x 4

September 6, 2023September 7, 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.