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.

Batcave Adventure

Checking

10545 Batcave Adventure

59 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

Blue 13 pieces

  • Duplo Brick 1 x 2 x 2 with Bottom Tube Blue Part 76371 Element 6040229 ×2
  • Duplo Brick 2 x 2 Blue Part 3437 Element 343723 ×2
  • Duplo Brick 2 x 2 Slope 45° with Screen with Batwing and Shooting Controls Print Blue Part 6474pr0014 Element 6070647 ×1
  • Duplo Brick 2 x 3 with Curved Top Blue Part 2302 Element 230273 or 230223 ×4
  • Duplo Brick 2 x 8 Blue Part 4199 Element 4291881 or 419923 ×1
  • Duplo Cape with Elastic Loop Blue Part 17478 Element 6145261 or 6071728 ×1
  • Duplo Chair with 4 Studs and Rounded Back Blue Part 12651 Element 6194389 or 6040233 ×1
  • Duplo Plate Round 4 x 4 Blue Part 98222 Element 6001660 ×1

Yellow 10 pieces

  • Duplo Brick 1 x 2 x 2 with Bottom Tube Yellow Part 76371 Element 6030817 ×4
  • Duplo Cannon Ball 1/2 with Axle Connector Yellow Part 54043 Element 6069843 ×2
  • Duplo Door Frame 2 x 4 x 5 Yellow Part 92094 Element 4644211 ×1
  • Duplo Fence Railing 1 x 6, with 6 Posts Yellow Part 12602 Element 6036418 ×1
  • Duplo Plate 2 x 4 Yellow Part 40666 Element 4160152 ×1
  • Duplo Playground Slide Straight with Two Top Studs Yellow Part 93150 Element 6102381 or 4649363 ×1

Red 9 pieces

  • Duplo Brick 2 x 2 Slope 45° Red Part 6474 Element 647421 ×1
  • Duplo Brick 2 x 3 Red Part 87084 Element 4558881 ×1
  • Duplo Brick 2 x 4 Red Part 3011 Element 4583326 or 4290074 ×3
  • Duplo Brick 2 x 6 Red Part 2300 Element 4290387 or 230021 ×2
  • Duplo Plate 4 x 4 Red Part 14721 Element 6070650 ×1
  • Duplo Turntable 4 x 4 Base, Flush Surface Red Part 92005 Element 4603681 ×1

Black 8 pieces

  • Duplo Batman Bat-a-Rang / Boomerang Black Part 16701 Element 6303358 or 6064124 ×1
  • Duplo Batwing Body 10 x 10 Black Part 17048 Element 6172113 or 6069975 ×1
  • Duplo Brick 1 x 3 x 2 Round Top, Cut Away Sides with Batman Logo Print Black Part 14222pr0005 Element 6171064 or 6070649 ×1
  • Duplo Brick 2 x 2 Slope 45° Black Part 6474 Element 4168694 ×1
  • Duplo Brick 2 x 4 Curved Top Black Part 98223 Element 6070778 or 6001664 ×1
  • Duplo Cannon, Shooting with Axle Hole and Red Firing Button, with Batman Logo Print Black Part 17178c01pr0001 Element 6172148 or 6069193 ×1
  • Duplo Figure Catwoman with Mask / Cowl Black, with Zipper and Yellow Belt Print Black Part 16855 Element 6069135 ×1
  • Duplo Train Crossing Gate Base / Crane Base with Bottom Hole Black Part 13358 Element 6036717 ×1

Orange 7 pieces

  • Duplo Brick 1 x 2 x 2 with Lever, Controls and Screen with Robin Print (No. 11) Orange Part 4066pr0095 Element 6101852 ×2
  • Duplo Brick 2 x 2 Orange Part 3437 Element 4159527 ×2
  • Duplo Plate 2 x 4 Orange Part 40666 Element 4183518 ×2
  • Duplo Suitcase / Bag Orange Part 20302 Element 6104418 ×1

Medium Azure 6 pieces

  • Duplo Brick 1 x 2 x 2 with Bottom Tube Medium Azure Part 76371 Element 6101124 ×4
  • Duplo Brick 2 x 2 Medium Azure Part 3437 Element 6054619 ×2

Light Bluish Gray 4 pieces

  • Duplo Figure Batman with Mask / Cowl Blue, with Batman Logo Print Light Bluish Gray Part 16856pr0009 Element 6206081 or 6069122 ×1
  • Duplo Plate 6 x 12 Light Bluish Gray Part 4196 Element 6139232 or 6100459 ×1
  • Duplo Turntable 2 x 2 Light Bluish Gray Part 10888 Element 6022244 ×1
  • Duplo Winch Drum Narrow Ridged with String and Black Hook Light Bluish Gray Part 14013c01 Element 6209823 or 6039794 ×1

Flat Silver 1 piece

  • Duplo Door 1 x 4 x 4 with Nine Panes Flat Silver Part 31171 Element 4646783 or 4612786 ×1

Trans-Orange 1 piece

  • Duplo Wave (Fire, Water, Flame) 2 x 1 x 5 with Non-Marbled Tip Trans-Orange Part 51703 Element 6270047 or 4500457 ×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.