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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.

Heavy-Duty Bulldozer

Checking

42163 Heavy-Duty Bulldozer

195 pieces in 46 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 102 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate Special 1 x 2 with Pin Hole Underneath Black Part 18677 Element 6192309 or 6167497 ×4
  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Black Part 6553 Element 4107765 or 655326 ×2
  • Technic Axle 4 Black Part 3705 Element 370526 ×2
  • Technic Axle Connector Smooth [with x Hole + Orientation] Black Part 59443 Element 6084612 or 4512363 ×1
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Black Part 18651 Element 6089119 ×3
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Black Part 60483 Element 6265091 or 6006140 ×6
  • Technic Beam 1 x 2 Thin Black Part 41677 Element 6338428 or 4167726 ×6
  • Technic Beam 1 x 4 Thin Black Part 32449 Element 6327548 or 4142236 ×4
  • Technic Beam 2 x 4 L-Shape Thick Black Part 32140 Element 6271825 or 4120017 ×4
  • Technic Beam 3 x 3 T-Shape Thick Black Part 60484 Element 4552347 or 4535771 ×1
  • Technic Gear 12 Tooth Double Bevel Black Part 32270 Element 4177431 ×1
  • Technic Link Tread with Beveled Edge Black Part 15379 Element 6047885 2 spares in the box ×48
  • Technic Pin Connector Round 1L [Beam] Black Part 18654 Element 6121485 1 spare in the box ×2
  • Technic Pin with Friction Ridges Lengthwise with No Center Slots Black Part 61332 Element 6279875 1 spare in the box ×14
  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×3

Yellow 45 pieces

  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×1
  • Technic Axle 3 Yellow Part 4519 Element 6130007 ×2
  • Technic Axle 7 Yellow Part 44294 Element 6130009 ×2
  • Technic Axle and Pin Connector Angled #1 Yellow Part 32013 Element 6329889 or 4107066 ×4
  • Technic Axle and Pin Connector Perpendicular Yellow Part 6536 Element 6261367 or 4173666 ×6
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Yellow Part 32184 Element 6276974 or 6037676 ×5
  • Technic Beam 1 x 3 Thick Yellow Part 32523 Element 4153707 ×2
  • Technic Beam 1 x 5 Thick Yellow Part 32316 Element 4142133 or 4128590 ×3
  • Technic Beam 1 x 5 Thin Yellow Part 32017 Element 4503425 or 4199343 ×1
  • Technic Beam 1 x 7 Thick Yellow Part 32524 Element 4495934 or 4187082 ×6
  • Technic Beam 2 x 3 L-Shape with Quarter Ellipse Thick Yellow Part 71708 Element 6332412 ×2
  • Technic Beam 3 x 5 L-Shape Thick Yellow Part 32526 Element 4144022 ×2
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×3
  • Technic Pin Connector Round [Slotted] Yellow Part 62462 Element 6173122 or 4526983 ×4
  • Tile 1 x 3 Yellow Part 63864 Element 4558172 ×2

Light Bluish Gray 18 pieces

  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×6
  • Technic Axle 9 Light Bluish Gray Part 60485 Element 4535768 ×1
  • Technic Axle and Pin Connector Angled #3 - 157.5° Light Bluish Gray Part 32016 Element 6261387 or 4211552 ×2
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×2
  • Technic Driving Ring Connector Smooth [2 rounded and 2 flat side walls] Light Bluish Gray Part 42195 Element 6273212 ×2
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×4
  • Technic Worm Gear Type 2 Light Bluish Gray Part 32905 Element 6185471 ×1

Blue 15 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×6
  • Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot Blue Part 42924 Element 6299413 ×9

Red 10 pieces

  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×5
  • Technic Axle 4 Red Part 3705 Element 6129995 or 4265797 ×1
  • Technic Gear 16 Tooth with Clutch on Both Sides Red Part 18946 Element 6100930 ×4

Reddish Brown 2 pieces

  • Technic Axle 5 with Stop Reddish Brown Part 15462 Element 6159763 ×2

Tan 2 pieces

  • Technic Pin 3/4 Tan Part 32002 Element 6663097 or 6013938 1 spare in the box ×2

Dark Bluish Gray 1 piece

  • Technic Gear 8 Tooth [Reinforced] Dark Bluish Gray Part 10928 Element 6631413 or 6012451 ×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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