Set Details
- Set Number
- 7471
- Name
- Mars Exploration Rover
- Theme
- Discovery
- Year
- 2003
- Pieces
- 865
- Complexity
- Advanced
- Build Time
- 4-8 hours
- Ages
- 14+
- Type
- Both play and display
About LEGO Mars Exploration Rover
LEGO Mars Exploration Rover (set #7471) is a large, detailed build with 865 pieces from the Discovery theme, released in 2003. The Discovery line features science and space exploration educational sets. At 865 pieces, this is a advanced-level build with an estimated build time of 4-8 hours, suitable for ages 14+.
Set Highlights
- 865 pieces at advanced complexity — a 4-8 hours build.
- Compatible with all standard LEGO sets — bricks extend naturally into other sets you own.
- Versatile build — display-worthy when complete, durable enough for active play.
Who Is This Set For?
Gift for Ages 14+
The advanced difficulty makes this accessible without being trivial — a well-matched gift for LEGO fans in the 14+ age range.
Weekend Build Project
865 pieces with an estimated 4-8 hours fits comfortably into a focused afternoon or weekend session.
Expanding a Discovery Collection
A solid addition for collectors building out their Discovery shelf. Introduces parts and builds that complement other sets from the same line.
Build Tips
A five-minute sort by color or piece type before starting saves time hunting for specific bricks mid-step.
Follow the numbered steps in sequence — structural elements early in the build support everything that comes after.
Keep the instruction booklet after building — it's the most reliable reference for disassembly, cleaning, or reassembly after storage.
Finding Instructions
Building instructions for LEGO Mars Exploration Rover (#7471) 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.
Mars Exploration Rover FAQ
Related Reading
More Discovery Sets
See all Discovery →
Also Released in 2003
All 2003 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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