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.

Gear/Wheel Set

Checking

803-2 Gear/Wheel Set

163 pieces in 31 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.

Show

Piece checklist

Bricks 50 pieces

  • Brick 1 x 1 Blue Part 3005 Element 300523 ×4
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×2
  • Brick 2 x 4 without Cross Supports Blue Part 3001a ×14
  • Brick 2 x 8 Blue Part 3007 Element 6037384 or 300723 ×2
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×4
  • Brick 1 x 6 Red Part 3009 Element 300921 ×2
  • Brick 2 x 2 without Inside Ridges Red Part 3003a ×8
  • Brick 2 x 3 without Cross Supports Red Part 3002a ×2
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×4
  • Brick 1 x 6 Yellow Part 3009 Element 300924 ×2
  • Brick 2 x 2 without Inside Ridges Yellow Part 3003a ×4
  • Brick 2 x 3 without Cross Supports Yellow Part 3002a ×2

Plates 45 pieces

  • Plate 1 x 2 Red Part 3023 Element 302321 ×8
  • Plate 2 x 4 Red Part 3020 Element 302021 ×10
  • Plate 2 x 8 Red Part 3034 Element 303421 ×20
  • Plate 4 x 10 Red Part 3030 Element 4535164 or 4188302 ×2
  • Plate 4 x 8 Red Part 3035 Element 303521 ×3
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×2

Technic Axles 18 pieces

  • Technic Axle 12 Milky White Part 3708 ×2
  • Technic Axle 4 Milky White Part 3705 ×8
  • Technic Axle 6 Milky White Part 3706 ×4
  • Technic Axle 8 Milky White Part 3707 ×4

Technic Gears 15 pieces

  • Technic Gear 15 Large Tooth Blue Part 570 ×3
  • Technic Gear 9 Large Tooth Red Part 569 ×9
  • Technic Gear 21 Large Tooth Yellow Part 572 ×3

Technic Bushes 14 pieces

  • Technic Bush with One Flange - Type One Red Part 584 ×14

Technic Bricks 12 pieces

  • Technic Brick 2 x 4 with Top/Side/End Holes and Hollow Studs Light Gray Part 3709a ×12

Wheels and Tyres 4 pieces

  • Tyre 43 x 17 Old Black Part 3634b ×4

Bricks Sloped 2 pieces

  • Brick Sloped 45° 2 x 4 Blue Part 3037 Element 4107437 or 303723 ×2

Technic Steering, Suspension and Engine 2 pieces

  • Technic Universal Joint - Old Style Red Part 9244a ×2

String, Bands and Reels 1 piece

  • String Cord Medium Thickness 50cm Black Part 7916c50 ×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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