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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.

Red Planet Cruiser

Checking

7311 Red Planet Cruiser

68 pieces in 36 part and color combinations, plus 1 minifigure.

The official piece count includes the 5 parts inside the set's minifigures, which this inventory lists separately. 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.

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Piece checklist

Dark Gray 22 pieces

  • Bar 1 x 8 with Brick 1 x 2 Curved Top End (Original, No Axle Holder) Dark Gray Part 30359a Element 4124064 ×2
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed Dark Gray Part 4871 Element 4113237 or 487127 ×1
  • Brick Special 1 x 1 with Headlight Dark Gray Part 4070 Element 4108044 or 407027 ×2
  • Hinge Brick 1 x 2 Locking with 2 Fingers Horizontal End, 9 Teeth Dark Gray Part 30540 Element 4142957 ×2
  • Hinge Brick 1 x 2 Locking with Single Finger On Top Dark Gray Part 76385 Element 4125384 ×2
  • Hinge Cylinder 1 x 3 Locking with 1 Finger and 2 Fingers On Ends, without Hole, 9 Teeth Dark Gray Part 30554a ×6
  • Plate 1 x 6 Dark Gray Part 3666 Element 4109987 or 366627 ×1
  • Plate 2 x 3 Dark Gray Part 3021 Element 4108041 or 302127 ×1
  • Plate 2 x 4 Dark Gray Part 3020 Element 4112232 or 302027 ×1
  • Plate Special 6 x 6 x 2/3 Cross with Dome Dark Gray Part 30303 Element 4120146 ×1
  • Tile 1 x 2 with Elliptical Display Print Dark Gray Part 3069bpr0046 Element 4142971 ×1
  • Wedge Plate 3 x 4 without Stud Notches Dark Gray Part 4859 Element 4181035 ×1
  • Wedge Plate 3 x 6 Cut Corners Dark Gray Part 2419 Element 241927 ×1

Light Gray 16 pieces

  • Arm Mechanical with 2 Clips [Battle Droid] Light Gray Part 30377 Element 4142794 or 4125288 ×1
  • Brick Special 1 x 2 with Grille Light Gray Part 2877 Element 287702 ×1
  • Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End, 9 Teeth Light Gray Part 30365 Element 4144500 or 4124100 ×2
  • Hinge Brick 1 x 4 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Light Gray Part 30387 Element 4144571 or 4142993 ×2
  • Lever Small Base with Black Lever Light Gray Part 298c02 Element 73588 ×1
  • Plate 2 x 2 Corner Light Gray Part 2420 Element 242052 or 242002 ×4
  • Plate Special 1 x 2 Side Handle [Free Ends] Light Gray Part 2540 Element 4140584 or 254052 ×2
  • Tile Round 2 x 2 with Flame and Sand Green Border Print Light Gray Part 4150pr0031 Element 4142974 ×1
  • Wedge Plate 3 x 6 Cut Corners Light Gray Part 2419 Element 241902 ×2

Green 11 pieces

  • Brick 1 x 2 Green Part 3004 Element 4107736 or 300428 ×2
  • Brick Sloped Inverted 45° 2 x 1 Green Part 3665 Element 4142989 or 4119659 ×2
  • Plate 1 x 2 Green Part 3023 Element 302328 ×5
  • Plate 2 x 2 Green Part 3022 Element 302228 ×2

Trans-Neon Orange 7 pieces

  • Cone 1 x 1 [No Top Groove] Trans-Neon Orange Part 4589 Element 4529918 or 618847 ×2
  • Dish 2 x 2 Inverted [Radar] Trans-Neon Orange Part 4740 Element 6245295 or 3006347 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Neon Orange Part 6141 Element 6240218 or 3005747 1 spare in the box ×4

Sand Green 6 pieces

  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Sand Green Part 6091 Element 6411367 or 6258321 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Sand Green Part 3040b Element 6083976 or 4597014 ×2
  • Wedge Plate 3 x 6 Cut Corners Sand Green Part 2419 Element 4143042 ×2

Black 4 pieces

  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Black Part 30383 Element 6338799 or 4144575 ×2
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×1
  • Tile Special 1 x 2 with Handle Black Part 2432 Element 243226 ×1

Orange 2 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Orange Part 2412b Element 4125254 or 3933106 ×2

Minifigures 1 figure

  • Martian, Altair - Medium Lime Torso 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.

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