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

6673 – Back D

April 20, 2025April 21, 2025 Master Builder 3786 Views

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

Back D

Contributions

  1. Name and PDF submitted on April 20, 2025 by: KILDET
  • ← 6673 – Back C
  • 5935: Island Hopper →

You May Also Like

Book 7777 – Page 2-3

November 11, 2021November 11, 2021 Master Builder

6516 – Back B

April 9, 2020April 9, 2020 Master Builder

6662 – Back A

July 8, 2022July 13, 2022 Master Builder

4591 – Back A

February 21, 2025February 21, 2025 Master Builder

6905 – Back C

February 22, 2023February 22, 2023 Master Builder

6419 – Inside B

August 10, 2026August 10, 2026 Master Builder

EXPLORE MORE OFFICIAL SETS

6501: Sport Convertible
Classic Town Official Sets Town Town Sets Traffic Very Small Builds 

6501: Sport Convertible

July 8, 2022July 8, 2022 Master Builder

Year Released: 1987BricklinkInstructions

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

6642: Police Helicopter

April 8, 2020April 8, 2020 Master Builder
1720: Cactus Canyon Value Pack
Bonus/Value Pack Sets Bonus/Value Packs Classic Town Official Sets Recreation Small Builds Town 

1720: Cactus Canyon Value Pack

April 14, 2026April 14, 2026 Master Builder
6562: Gas Stop Shop
Classic Town Gas Station Medium Builds Official Sets Town Town Sets Wrecker 

6562: Gas Stop Shop

September 19, 2022September 19, 2022 Master Builder
5810: Vanity Fun
Belville Belville Sets Lion Knights Official Sets Playhouse Very Small Builds 

5810: Vanity Fun

April 10, 2021April 10, 2021 Master Builder
6957: Solar Snooper
ABCs Box Story Jørn Thomsen Large Builds Official Sets Space Space Police II Space Police II Sets 

6957: Solar Snooper

March 18, 2022February 18, 2025 Master Builder
6245: Harbor Sentry
Imperial Soldiers Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets Very Small Builds 

6245: Harbor Sentry

July 13, 2021July 29, 2023 Master Builder
194: Family
Building Set with People Building Set with People Sets Official Sets Small Builds 

194: Family

October 4, 2019October 6, 2019 Master Builder
4741: Blacktron Super Vehicle Value 3-Pack 
Blacktron II Blacktron II Alternate Builds Blacktron II Sets Bonus/Value Pack Sets Bonus/Value Packs Large Builds Official Sets Space Super Model 

4741: Blacktron Super Vehicle Value 3-Pack 

February 19, 2026February 20, 2026 Master Builder
6356: Med-Star Rescue Plane
Classic Town Hospital Medium Builds Official Sets Town Town Sets 

6356: Med-Star Rescue Plane

March 16, 2022March 16, 2022 Master Builder
6811: Pulsar Charger
M:Tron M:Tron Sets Official Sets Space Very Small Builds 

6811: Pulsar Charger

April 17, 2020April 17, 2020 Master Builder
6737: Wake Rider (Wave Catcher)
Island Xtreme Stunts Island Xtreme Stunts Sets Medium Builds Official Sets 

6737: Wake Rider (Wave Catcher)

April 7, 2026April 7, 2026 Master Builder
6884: Aero-Module
Bjarne Tveskov Different Box Versions Futron Sets Futuron Official Sets Small Builds 

6884: Aero-Module

September 24, 2019March 17, 2024 Master Builder
Kabaya: Alpha Team 1
Alpha Team Alpha Team Sets Mission Deep Sea Official Sets Very Small Builds 

Kabaya: Alpha Team 1

September 9, 2024September 9, 2024 Master Builder
8957: Mine Mech
Official Sets Power Miners Power Miners Sets Small Builds 

8957: Mine Mech

March 27, 2026March 27, 2026 Master Builder
6487: Mountain Rescue
Official Sets Outback Small Builds Town Town Sets 

6487: Mountain Rescue

July 25, 2022July 25, 2022 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.