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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.

Magma Monster

Checking

3847 Magma Monster

95 pieces in 44 part and color combinations.

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

Reddish Brown 20 pieces

  • Brick Sloped 65° 2 x 2 x 2 with Bottom Tube Reddish Brown Part 3678b Element 4585066 or 4211320 ×4
  • Brick Sloped 75° 2 x 1 x 3 with Hollow Stud Reddish Brown Part 4460b Element 4270470 ×2
  • Brick Sloped Inverted 75° 2 x 1 x 3 Reddish Brown Part 2449 Element 4264755 ×2
  • Brick Special 1 x 2 Palisade [aka Log] Reddish Brown Part 30136 Element 4211180 ×10
  • Tile 1 x 1 with Groove Reddish Brown Part 3070b Element 4211288 1 spare in the box ×1
  • Tile 2 x 2 with Groove Reddish Brown Part 3068b Element 4271949 or 4264030 ×1

Black 14 pieces

  • Animal, Bat Black Part 30103 Element 4587312 or 4106513 ×2
  • Brick Special 1 x 1 Studs on 4 Sides Black Part 4733 Element 473326 ×1
  • Die - 6 Sided Rubber Frame with Red Centre Studs (Board Games) Black Part 64776pat0001 Element 4539364 ×1
  • Plate 1 x 6 Black Part 3666 Element 366626 ×3
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Black Part 87580 Element 6663108 or 4565323 ×1
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×1
  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 1 spare in the box ×1
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×1
  • Tool Screwdriver and Spanner / Wrench Black Part 4006 Element 6034000 or 4569095 ×1
  • Wedge Plate 3 x 6 Cut Corners Black Part 2419 Element 241926 ×1

Light Bluish Gray 12 pieces

  • Brick Special 1 x 2 Palisade [aka Log] Light Bluish Gray Part 30136 Element 4550325 or 4519968 ×10
  • Tile 1 x 1 with Groove Light Bluish Gray Part 3070b Element 4211415 1 spare in the box ×1
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×1

Tan 12 pieces

  • Brick Special 1 x 2 Palisade [aka Log] Tan Part 30136 Element 4218749 or 4114053 ×10
  • Tile 1 x 1 with Groove Tan Part 3070b Element 4125253 1 spare in the box ×1
  • Tile 2 x 2 with Groove Tan Part 3068b Element 4185177 or 4114002 ×1

Dark Bluish Gray 9 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 1 spare in the box ×2
  • Brick Sloped 33° 3 x 1 Dark Bluish Gray Part 4286 Element 4211045 ×2
  • Brick Sloped 45° 2 x 1 Triple with Ovoid Bottom Pin Dark Bluish Gray Part 3048c Element 4552203 or 4541244 ×4
  • Microfig Magma Monster Dark Bluish Gray Dark Bluish Gray Part 85863pr0024 Element 4585364 ×1

Dark Red 7 pieces

  • Arm Mechanical with Clip [Thin Support] Dark Red Part 53989 Element 4626928 or 4541552 ×2
  • Cone 2 x 2 x 2, Open Stud Dark Red Part 3942c Element 6092668 or 6038462 ×1
  • Plate Special 1 x 1 with Tooth Dark Red Part 49668 Element 6635729 or 4275573 ×3
  • Torso Mechanical, Bionicle Dark Red Part 54275 Element 4294547 ×1

Trans-Neon Orange 6 pieces

  • Wave / Flame Rounded with Base Rim Trans-Neon Orange Part 6126b Element 6258495 or 6167743 ×6

Orange 5 pieces

  • Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small Orange Part 53451 Element 6270112 or 6096683 1 spare in the box ×3
  • Baseplate 16 x 16 Orange Part 3867 Element 4585500 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Orange Part 4085c ×1

Red 3 pieces

  • Brick Special 1 x 4 with Groove Red Part 2653 Element 4568268 or 4530013 ×1
  • Technic Plate 2 x 4 [3 Holes] Red Part 3709 Element 370921 ×1
  • Tile 2 x 2 with Groove Red Part 3068b Element 306821 ×1

Trans-Orange 2 pieces

  • Cone 1 x 1 [Top Groove] Trans-Orange Part 59900 Element 6514017 or 6172233 ×2

White 2 pieces

  • Microfig Magma Monster White White Part 85863pr0022 Element 4594788 or 4585361 ×1
  • Plate Round 1 x 1 with Open Stud White Part 85861 Element 6168642 or 4547649 1 spare in the box ×1

Blue 1 piece

  • Microfig Magma Monster Blue Blue Part 85863pr0021 Element 4594785 or 4585362 ×1

Green 1 piece

  • Microfig Magma Monster Green Green Part 85863pr0023 Element 4585363 ×1

Pearl Gold 1 piece

  • Rock 1 x 1 Crystal 5 Point Pearl Gold Part 30385 Element 6174085 or 4516816 ×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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