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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.

Police Pursuit

Checking

42091 Police Pursuit

120 pieces in 40 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

Black 34 pieces

  • Technic Axle 12 Black Part 3708 Element 370826 ×2
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Black Part 18651 Element 6089119 ×1
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Black Part 60483 Element 6265091 or 6006140 ×2
  • Technic Beam 3 x 3 L-Shape Thin Black Part 32056 Element 6271810 or 4112287 ×4
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×17
  • Tyre 37 x 22 ZR Black Part 55978 Element 6518542 or 4499234 ×4
  • Wheel 30.4 x 20 without Pinholes, with Reinforced Rim Black Part 56145 Element 4299389 or 4284946 ×4

Light Bluish Gray 21 pieces

  • Steering Wheel Small, 2 x 2 [Reinforced] Light Bluish Gray Part 16091 Element 6092956 or 6061697 ×1
  • Technic Axle 7 Light Bluish Gray Part 44294 Element 44294194 or 4211805 ×3
  • Technic Axle and Pin Connector Perpendicular Light Bluish Gray Part 6536 Element 6261375 or 4211775 ×2
  • Technic Beam 1 x 15 Thick Light Bluish Gray Part 32278 Element 4542577 or 4211770 ×2
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Light Bluish Gray Part 6629 Element 6279885 or 4255613 ×2
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×5
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×5
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Light Bluish Gray Part 32054 Element 4211865 ×1

Blue 20 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 1 spare in the box ×2
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×18

White 20 pieces

  • Axle Hose, Soft 19L White Part 32235 Element 6102484 or 4182888 ×1
  • Technic Beam 1 x 11 Thick White Part 32525 Element 6028103 or 4296265 ×1
  • Technic Beam 1 x 3 Thick White Part 32523 Element 6632140 or 4208160 ×4
  • Technic Beam 1 x 7 Thick White Part 32524 Element 6564912 or 6318056 ×1
  • Technic Beam 3 x 5 L-Shape Thick White Part 32526 Element 6632144 or 4585040 ×5
  • Technic Panel Fairing # 3 Small Smooth Long, Side A White Part 64683 Element 4547581 ×1
  • Technic Panel Fairing # 4 Small Smooth Long, Side B White Part 64391 Element 4547582 ×1
  • Technic Pin Connector Round 1L [Beam] White Part 18654 Element 6550155 or 6177114 1 spare in the box ×6

Dark Azure 7 pieces

  • Technic Beam 1 x 9 Thick Dark Azure Part 40490 Element 6443899 or 6211954 ×2
  • Technic Panel Curved 11 x 3 with 10 Pin Holes through Panel Surface Dark Azure Part 11954 Element 6163677 ×3
  • Technic Panel Fairing #1 Small Smooth Short, Side A Dark Azure Part 87080 Element 6163684 ×1
  • Technic Panel Fairing #2 Small Smooth Short, Side B Dark Azure Part 87086 Element 6163682 ×1

Yellow 5 pieces

  • Technic Axle 5 Yellow Part 32073 Element 6130008 ×1
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×4

Dark Bluish Gray 3 pieces

  • Pullback Motor 6 x 3 x 5 Dark Bluish Gray Part 12799 Element 6143751 or 6024100 ×1
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Dark Bluish Gray Part 42003 Element 6273715 or 4210857 ×2

Trans-Dark Blue 3 pieces

  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Trans-Dark Blue Part 41669 Element 6133516 or 4163569 ×2
  • Tile Round 1 x 1 Trans-Dark Blue Part 98138 Element 6514190 or 6273627 1 spare in the box ×1

Trans-Red 3 pieces

  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Trans-Red Part 41669 Element 4163567 ×2
  • Tile Round 1 x 1 Trans-Red Part 98138 Element 6514189 or 6258607 1 spare in the box ×1

Reddish Brown 2 pieces

  • Technic Axle 3 with Stop Reddish Brown Part 24316 Element 6135494 ×2

Red 1 piece

  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Red Part 11214 Element 6209519 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 42091-1 [No Color/Any Color] Part 44841 Element 6248985 ×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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