BlockTalk Find Your Set

Free tool

LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Solar Explorer

Checking

7315 Solar Explorer

234 pieces in 81 part and color combinations, plus 3 minifigures.

LEGO counts 242 pieces. This inventory comes from a separate parts catalog and lists 249, including the 15 parts inside the minifigures; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Show

Piece checklist

White 69 pieces

  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×4
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×4
  • Brick 2 x 6 White Part 2456 Element 6552122 or 4249698 ×1
  • Brick Arch 1 x 6 x 2 Curved Top White Part 6183 Element 6552159 or 6132772 ×1
  • Brick Arch 1 x 6 x 3 1/3 Curved Top White Part 6060 Element 6185956 or 6077803 ×4
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top White Part 6091 Element 6285777 or 609101 ×2
  • Brick Curved 1 x 4 x 1 1/3 No Studs, Lowered Inside Support White Part 6191 Element 4297949 or 619101 ×2
  • Brick Special 1 x 1 with Headlight White Part 4070 Element 6548267 or 407001 ×4
  • Brick Special 1 x 2 with 2 Pins, Round Pin Holes White Part 30526 Element 4143276 ×9
  • Brick Wedged, Angled 3 x 2 Left White Part 6565 Element 4527764 or 656501 ×2
  • Brick Wedged, Angled 3 x 2 Right White Part 6564 Element 4526928 or 656401 ×2
  • Dome Hemisphere 4 x 4 Multifaceted White Part 30208 Element 4501729 or 4256739 ×1
  • Hinge Brick 1 x 2 Top Plate Thin White Part 3938 Element 393801 ×4
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×1
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×6
  • Square 14 x 14 with Solar Panel Print White Part 23248pr0001 Element 4143264 ×1
  • Technic Brick 1 x 16 [15 Pin Holes] White Part 3703 Element 4508661 or 370301 ×2
  • Technic Brick 1 x 2 [2 Pin Holes] White Part 32000 Element 6564911 or 3200001 ×9
  • Tile Round 2 x 2 with Light Blue Vitruvian Minifig Print White Part 4150pr0043 Element 4143038 ×1
  • Wedge Plate 6 x 12 Left White Part 30355 Element 6535488 or 4141475 ×1
  • Wedge Plate 6 x 12 Right White Part 30356 Element 4141476 ×1
  • Wedge, Plate 16 x 14 Shuttle White Part 6219 Element 4143245 or 621901 ×1
  • Wheel 8 x 6 White Part 4624 Element 462401 ×4
  • Wing, Tail 4 x 1 x 3 White Part 2340 Element 6347936 or 234024 ×2

Black 58 pieces

  • Antenna 8H Whip Black Part 2569 Element 6265148 or 6164379 ×1
  • Brick 2 x 3 Black Part 3002 Element 300226 ×3
  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×4
  • Brick Round 2 x 2 with Axle Hole Black Part 3941 Element 614376 or 614326 ×2
  • Cone 4 x 4 x 2, Axle Hole [Plain] Black Part 3943b Element 4143243 or 394326 ×1
  • Dish 4 x 4 Inverted [Radar] Black Part 3960 Element 396026 ×1
  • Equipment Camera with Side Sight [aka Space Gun] Black Part 4360 Element 436026 ×1
  • Hinge Cylinder 1 x 3 Locking with 1 Finger and 2 Fingers On Ends, without Hole, 9 Teeth Black Part 30554a ×4
  • Plate 2 x 8 Black Part 3034 Element 303426 ×3
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×16
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Black Part 4085c Element 408526 ×2
  • Technic Axle 4 Black Part 3705 Element 370526 ×1
  • Technic Pin with Friction Ridges Lengthwise and Towball Black Part 6628 Element 4184169 or 662826 ×6
  • Tile 1 x 2 with Arrow Short Yellow without Black Border Print Black Part 3069bpr0038 Element 82057 ×1
  • Tile 1 x 2 with Mars Orbit Display Print Black Part 3069bpr0044 Element 4114640 ×1
  • Tile 2 x 2 with Insectoid Logo in Triangle Print Black Part 3068bpr0353 Element 4114641 ×2
  • Tile Special 1 x 1 with Clip and Straight Tips Black Part 2555 Element 255526 ×2
  • Tyre 15 x 6 Offset Tread Small Black Part 3641 Element 4501046 or 364126 ×4
  • Vehicle Base 4 x 7 x 2/3 with 3 x 4 Recessed, Wheel Pins Black Part 2441 Element 6482877 or 6349350 ×1
  • Weapon Gun / Torch (Space) [with Grooves] Black Part 3959 Element 4254942 or 395976 ×2

Blue 26 pieces

  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×5
  • Brick 1 x 6 Blue Part 3009 Element 300923 ×2
  • Brick 2 x 2 Blue Part 3003 Element 4103589 or 300373 ×1
  • Brick 2 x 3 Blue Part 3002 Element 300223 ×1
  • Brick Special 1 x 2 with Pin Blue Part 2458 Element 245823 ×2
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×3
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×6
  • Plate 2 x 2 Corner Blue Part 2420 Element 242073 or 242023 ×6

Light Gray 26 pieces

  • Brick Special 1 x 2 with Vertical Clip [Thick U Clip] Light Gray Part 30237a Element 4117069 ×4
  • Hinge Brick 1 x 2 Base Light Gray Part 3937 Element 393702 ×4
  • Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End, 9 Teeth Light Gray Part 30365 Element 4144500 or 4124100 ×4
  • Lever Small Base with Black Lever Light Gray Part 298c02 Element 73588 1 spare in the box ×1
  • Plate 2 x 6 Light Gray Part 3795 Element 379502 ×2
  • Tile 1 x 6 with Groove Light Gray Part 6636 Element 4106326 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Light Gray Part 2412b Element 241202 ×9

Dark Gray 24 pieces

  • Brick 2 x 4 Dark Gray Part 3001 Element 4113855 or 300127 ×3
  • Brick Sloped 45° 2 x 2 with Blue/Copper Radar Display Print Dark Gray Part 3039pr9952 Element 4114637 ×1
  • Engine 2 x 4 x 4 Dark Gray Part 30535 Element 4143058 ×2
  • Hinge Brick 1 x 2 Locking with Single Finger On Top Dark Gray Part 76385 Element 4125384 ×1
  • Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 9 Teeth Dark Gray Part 30553 Element 4142725 ×2
  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Dark Gray Part 30383 Element 4144572 or 4124434 ×5
  • Plate 2 x 4 Dark Gray Part 3020 Element 4112232 or 302027 ×2
  • Plate 4 x 4 Dark Gray Part 3031 Element 4243823 or 4113911 ×3
  • Plate Special 1 x 2 Side Handle [Free Ends] Dark Gray Part 2540 Element 4140589 or 4109721 ×2
  • Technic Axle 3 with Stud Dark Gray Part 6587 Element 4113884 or 658727 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Dark Gray Part 3700 Element 4114529 or 370027 ×1
  • Tile 1 x 2 with Joystick and Vehicle Control Panel Print Dark Gray Part 3069bpr0090 Element 4120171 ×1

Trans-Red 15 pieces

  • Cone 1 x 1 [No Top Groove] Trans-Red Part 4589 Element 618841 ×6
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 3 spares in the box ×9

Medium Blue 11 pieces

  • Brick Sloped 33° 3 x 1 Medium Blue Part 4286 Element 4143136 ×2
  • Brick Sloped 33° 3 x 2 Medium Blue Part 3298 Element 4142994 ×2
  • Brick Sloped 45° 2 x 2 Medium Blue Part 3039 Element 6092038 or 4143135 ×7

Trans-Neon Orange 2 pieces

  • Rock Boulder 4 x 4, Bottom Trans-Neon Orange Part 30294 Element 4164087 or 4143273 ×1
  • Rock Boulder 4 x 4, Top Trans-Neon Orange Part 30293 Element 4143272 ×1

Orange 1 piece

  • Rock 2 x 2 with Centre Stud Orange Part 30596 Element 4154651 or 4143236 ×1

Trans-Brown 1 piece

  • Windscreen 6 x 8 x 3 Curved Canopy with Life on Mars Print Trans-Brown Part 30485pr0001 Element 4143034 ×1

Trans-Green 1 piece

  • Brick Round 1 x 1 Open Stud Trans-Green Part 3062b Element 6514234 or 6238046 ×1

Minifigures 3 figures

  • Spaceman, Doc Minifigure, checked as a whole figure ×1
  • Spaceman, Mac Minifigure, checked as a whole figure ×1
  • Spaceman, BB Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

We value your privacy

We use cookies 🍪 for analytics and to improve your experience. Read our privacy policy