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LEGO MT-21 Mobile Mining Unit

Set #7648 · 2008 · 130 pieces · Quick build

LEGO MT-21 Mobile Mining Unit set 7648 instructions

Set Details

Set Number
7648
Name
MT-21 Mobile Mining Unit
Theme
Space
Year
2008
Pieces
130
Complexity
Quick
Build Time
20-45 minutes
Ages
6+
Type
Play-focused
LF
LegoFinder Editorial Team·Set data verified 2026·How we research sets

About LEGO MT-21 Mobile Mining Unit

LEGO MT-21 Mobile Mining Unit (set #7648) is a mid-sized build with 130 pieces from the Space theme, released in 2008. The Space line features spacecraft, moon bases, and interstellar exploration. This is a quick-level build suitable for ages 6+, with an estimated build time of 20-45 minutes.

Set Highlights

  • 130 pieces at quick complexity — a 20-45 minutes build.
  • Compatible with all standard LEGO sets — bricks extend naturally into other sets you own.
  • Play-focused build with interactive elements designed for 6+ builders.

Who Is This Set For?

Gift for Ages 6+

The quick difficulty makes this accessible without being trivial — a well-matched gift for LEGO fans in the 6+ age range.

Weekend Build Project

130 pieces with an estimated 20-45 minutes fits comfortably into a focused afternoon or weekend session.

Expanding a Space Collection

A solid addition for collectors building out their Space shelf. Introduces parts and builds that complement other sets from the same line.

Build Tips

1

Check the piece count on the bag against the parts list before starting — knowing what you have prevents mid-build surprises.

2

Even in small sets, connection order matters. Follow the steps rather than building sections independently.

3

For active play sets, key connection points (hinges, turntables, clip joints) can loosen over time — a small dab of LEGO's own tube clutch lubricant on the stud resolves most looseness without damage.

Finding Instructions

Building instructions for LEGO MT-21 Mobile Mining Unit (#7648) are available as a free PDF on LEGO.com. You can also upload a photo of this set to LegoFinder to identify it and access the instructions directly.

MT-21 Mobile Mining Unit FAQ

Related Reading

More Space Sets

See all Space

Also Released in 2008

All 2008 sets →

Similar Build Difficulty

Sets at roughly the same piece count and complexity tier — different theme and year, but a similar build experience.

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