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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.

Doc Brown Fun Pack

Checking

71230 Doc Brown Fun Pack

65 pieces in 33 part and color combinations, plus 1 minifigure.

The official piece count includes the 4 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

Black 37 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted Black Part 99780 Element 6020193 ×2
  • Brick Curved 2 x 2, Two Top Studs Black Part 30165 Element 4200023 or 4113231 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 1 spare in the box ×4
  • Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder Black Part 15571 Element 6051508 ×1
  • Cone 1 x 1 [Top Groove] Black Part 59900 Element 4529236 ×2
  • Equipment Radio [Extended Handle, Expanded Speaker Grille] Black Part 19220 Element 6170545 or 6100054 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger on Side, with Groove Black Part 44567a Element 4185620 ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×1
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×3
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×2
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Black Part 4081b Element 6281993 or 4632571 ×6
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Black Part 15573 Element 6092585 ×1
  • Plate Special 1 x 2 with Wheel Holder, Single Slit Black Part 21445 Element 6122656 ×4
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Black Part 99206 Element 6052126 ×1
  • Plate Special 3 x 2 with Rounded End, Hole Black Part 3176 Element 317676 or 317626 ×1
  • Tile Round 2 x 2 with Bottom Stud Holder Black Part 14769 Element 6070695 ×1
  • Train Wheel Small, hole notched for wheels holder pin Black Part 50254 Element 4295370 or 4227006 ×4

Pearl Gold 9 pieces

  • Equipment Binoculars Pearl Gold Part 30162 Element 6034543 ×1
  • Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 Pearl Gold Part 64644 Element 4538126 ×2
  • Plate Round 1 x 1 with Solid Stud Pearl Gold Part 6141 Element 4523159 1 spare in the box ×6

Red 7 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Red Part 54200 Element 5074621 or 4504379 1 spare in the box ×1
  • Plate 1 x 2 Red Part 3023 Element 302321 ×2
  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 1 spare in the box ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Red Part 15573 Element 6092565 ×2

Trans-Light Blue 5 pieces

  • Brick Round 2 x 2 with Axle Hole Trans-Light Blue Part 3941 Element 6514282 or 6273153 ×1
  • Function Brick Round 4 x 4 x 2/3 with 2 Studs and Gold 'DOC BROWN' and Black Radioactive Symbol Print Trans-Light Blue Part 19981pr0041 Element 6122907 ×1
  • Function Brick Round 4 x 4 x 2/3 with 4 Studs (Generic for Gadgets) Trans-Light Blue Part 18868c00 Element 6104392 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Trans-Light Blue Part 2412b Element 6147051 or 4143190 ×2

Trans-Brown 3 pieces

  • Brick 1 x 2 without Bottom Tube Trans-Brown Part 3065 Element 6514267 or 6244909 ×3

Trans-Orange 2 pieces

  • Flame / Headwear Accessory Plume / Feather, Triple Point Trans-Orange Part 64647 Element 6314353 or 6100044 1 spare in the box ×2

Dark Bluish Gray 1 piece

  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×1

Yellow 1 piece

  • Lever Small Base with Black Lever Yellow Part 298c02 Element 74156 1 spare in the box ×1

Minifigures 1 figure

  • Doc Brown (Dimensions) 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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