Rare parts in 31378-1: Space Exploration Telescope

This set inventory has been obtained from LEGO Customer Services replacement parts page. It was retrieved on 1 January 2026 and contains 272 pieces.

Important note: We do not control this inventory and cannot currently make changes to it. Use it as a guide to the contents of the set, or to find out part numbers when requesting replacements.

Element Image Qty Colour Category Design Element name Element
in sets		 Element
introduced in		 Design
in sets		 Design
introduced in
6451564 <h1><a href='/parts/6451564/1-4-circle-gear-rack-6x6'>1/4 CIRCLE, GEAR RACK 6X6</a></h1><div class='tags floatleft'><a href='/parts/6451564/1-4-circle-gear-rack-6x6'>6451564</a> <a href='/parts/design-78442'>78442</a> <a href='/parts/platform-Technic'>Technic</a> <a href='/parts/category-Vehicles-Transportation'>Vehicles & Transportation</a> <a href='/parts/colour-Black'>Black</a> <a href='/parts/year-2023'>2023</a></div><div class='floatright'>©2023 LEGO Group</div>

1/4 CIRCLE, GEAR RACK 6X6

6451564 78442 Technic Vehicles & Transportation Black 2023
©2023 LEGO Group
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2 Black Vehicles & Transportation 78442 1/4 CIRCLE, GEAR RACK 6X6 3 2023 5 2021
6595303 <h1><a href='/parts/6595303/1-2-sphere-5x5x3-w-cross-hole'>1/2 SPHERE 5X5X3, W/ CROSS HOLE</a></h1><div class='tags floatleft'><a href='/parts/6595303/1-2-sphere-5x5x3-w-cross-hole'>6595303</a> <a href='/parts/design-7343'>7343</a> <a href='/parts/platform-Technic'>Technic</a> <a href='/parts/category-Technic-Beams'>Technic Beams</a> <a href='/parts/colour-Bright-Yellow'>Bright Yellow</a> <a href='/parts/year-2025'>2025</a></div><div class='floatright'>©2025 LEGO Group</div>

1/2 SPHERE 5X5X3, W/ CROSS HOLE

6595303 7343 Technic Technic Beams Bright Yellow 2025
©2025 LEGO Group
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1 Bright Yellow Technic Beams 7343 1/2 SPHERE 5X5X3, W/ CROSS HOLE 2 2025 4 2025
6573537 <h1><a href='/parts/6573537/sphere-1x1-no-1'>SPHERE 1X1, NO. 1</a></h1><div class='tags floatleft'><a href='/parts/6573537/sphere-1x1-no-1'>6573537</a> <a href='/parts/design-6908'>6908</a> <a href='/parts/platform-System'>System</a> <a href='/parts/category-Bricks'>Bricks</a> <a href='/parts/colour-Light-Nougat'>Light Nougat</a> <a href='/parts/year-2026'>2026</a></div><div class='floatright'>©2026 LEGO Group</div>

SPHERE 1X1, NO. 1

6573537 6908 System Bricks Light Nougat 2026
©2026 LEGO Group
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1 Light Nougat Bricks 6908 SPHERE 1X1, NO. 1 2 2026 33 2025
6551130 <h1><a href='/parts/6551130/dome-ã˜32'>DOME Ø32</a></h1><div class='tags floatleft'><a href='/parts/6551130/dome-ã˜32'>6551130</a> <a href='/parts/design-35319'>35319</a> <a href='/parts/platform-System'>System</a> <a href='/parts/category-Bricks'>Bricks</a> <a href='/parts/colour-Transparent'>Transparent</a> <a href='/parts/year-2025'>2025</a></div><div class='floatright'>©2025 LEGO Group</div>

DOME Ø32

6551130 35319 System Bricks Transparent 2025
©2025 LEGO Group
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1 Transparent Bricks 35319 DOME Ø32 2 2025 8 2017