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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.

Back To School Project Box

Checking

41964 Back To School Project Box

659 pieces in 83 part and color combinations.

LEGO counts 669 pieces. This inventory comes from a separate parts catalog and lists 659; the two do not always count the same elements, so their totals differ. 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

White 119 pieces

  • Bag Tag with 3 x 6 Studs White Part 80390 Element 6393933 ×1
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×8
  • Brick 1 x 10 White Part 6111 Element 6619291 or 611101 ×2
  • Brick 1 x 2 x 2 with Inside Stud Holder White Part 3245c Element 6550139 or 4113261 ×10
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×4
  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side White Part 22885 Element 6603759 or 6218823 ×1
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×1
  • Plate 16 x 16 White Part 91405 Element 4618526 ×1
  • Plate 4 x 4 White Part 3031 Element 6552127 or 4243812 ×1
  • Plate 6 x 12 White Part 3028 Element 4120020 or 302801 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) White Part 15573 Element 6550152 or 6051511 ×1
  • Plate Special 1 x 4 with 2 Studs with Groove [New Underside] White Part 41740 Element 6249091 ×1
  • Tile 1 x 1 with Black Oval/Eye Print White Part 3070bpr0271 Element 6366561 1 spare in the box ×2
  • Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 1 spare in the box ×16
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×2
  • Tile 1 x 4 with Groove White Part 2431 Element 6548255 or 243101 ×11
  • Tile 2 x 2 Curved, Macaroni White Part 27925 Element 6550162 or 6172674 ×4
  • Tile 2 x 4 with Groove White Part 87079 Element 6548271 or 4560178 ×3
  • Tile Round 1 x 1 Half Circle White Part 24246 Element 6609539 or 6250591 1 spare in the box ×12
  • Tile Round 1 x 1 Quarter White Part 25269 Element 6548285 or 6172366 1 spare in the box ×37

Black 99 pieces

  • Attachment Ring (DOTS) Black Part 73767 Element 6375231 ×1
  • Bracket 2 x 2 with 1 x 2 Vertical Studs Black Part 41682 Element 6250020 ×2
  • Brick 1 x 12 Black Part 6112 Element 611226 ×2
  • Brick 1 x 16 Black Part 2465 Element 246576 or 246526 ×2
  • Brick 1 x 2 x 3 with Bottom Stud Holder Black Part 22886 Element 6228588 ×2
  • Brick 1 x 4 x 3 Black Part 49311 Element 6349112 ×5
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Black Part 11477 Element 6047276 ×2
  • Brick Special 1 x 2 with 2 Studs on 1 Side Black Part 11211 Element 6138173 ×2
  • Plate 2 x 16 Black Part 4282 Element 428276 or 428226 ×1
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×4
  • Plate 6 x 14 Black Part 3456 Element 345626 ×1
  • Plate Round 6 x 6 with Hole Black Part 11213 Element 6187587 ×2
  • Plate Round 8 x 8 Black Part 74611 Element 6393938 ×2
  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 2 spares in the box ×14
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×2
  • Tile 2 x 2 Curved, Macaroni Black Part 27925 Element 6191630 ×4
  • Tile Round 1 x 1 Black Part 98138 Element 6284070 or 6139403 1 spare in the box ×1
  • Tile Round 1 x 1 Half Circle Black Part 24246 Element 6256435 1 spare in the box ×6
  • Tile Round 1 x 1 Quarter Black Part 25269 Element 6172383 2 spares in the box ×34
  • Tile Round 3 x 3 Black Part 67095 Element 6376695 ×2
  • Tile Special Round 3 x 4 x 2/3 Mickey Mouse Black Part 74169 Element 6336633 ×2
  • Wedge Plate 4 x 2 Left Black Part 41770 Element 4161332 ×3
  • Wedge Plate 4 x 2 Right Black Part 41769 Element 4160869 ×3

Bright Pink 96 pieces

  • Brick 1 x 10 Bright Pink Part 6111 Element 6403267 or 4621550 ×2
  • Brick 1 x 2 x 2 with Inside Stud Holder Bright Pink Part 3245c Element 6528999 or 6403265 ×12
  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side Bright Pink Part 22885 Element 6403266 or 6273397 ×1
  • Brick Special 1 x 2 x 2 with Photo Clip Bright Pink Part 37452 Element 6303125 ×1
  • Plate 1 x 2 Bright Pink Part 3023 Element 4654128 or 4245303 ×4
  • Plate 6 x 8 Bright Pink Part 3036 Element 6553184 or 6403190 ×2
  • Tile 1 x 1 with Groove Bright Pink Part 3070b Element 6251940 or 4580007 1 spare in the box ×19
  • Tile 1 x 6 with Groove Bright Pink Part 6636 Element 6403189 ×8
  • Tile 2 x 4 with Groove Bright Pink Part 87079 Element 6106713 ×3
  • Tile Round 1 x 1 Bright Pink Part 98138 Element 6284587 or 6055380 1 spare in the box ×2
  • Tile Round 1 x 1 Half Circle Bright Pink Part 24246 Element 6258972 1 spare in the box ×10
  • Tile Round 1 x 1 Quarter Bright Pink Part 25269 Element 6240463 1 spare in the box ×32

Bright Light Orange 63 pieces

  • Brick 1 x 4 x 3 Bright Light Orange Part 49311 Element 6393940 ×11
  • Plate 8 x 16 Bright Light Orange Part 92438 Element 6393944 or 6211408 ×1
  • Tile 1 x 1 with Groove Bright Light Orange Part 3070b Element 6065504 1 spare in the box ×19
  • Tile Round 1 x 1 Half Circle Bright Light Orange Part 24246 Element 6313554 1 spare in the box ×8
  • Tile Round 1 x 1 Quarter Bright Light Orange Part 25269 Element 6214457 1 spare in the box ×24

Red 60 pieces

  • Bag Tag with 3 x 8 Studs Red Part 79996 Element 6393931 ×1
  • Brick 2 x 4 Red Part 3001 Element 300121 ×4
  • Plate 2 x 8 Red Part 3034 Element 303421 ×2
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 1 spare in the box ×19
  • Tile Round 1 x 1 Half Circle Red Part 24246 Element 6258973 1 spare in the box ×10
  • Tile Round 1 x 1 Quarter Red Part 25269 Element 6170390 1 spare in the box ×24

Dark Turquoise 56 pieces

  • Baseplate Special 8 x 8 with Adhesive Backside Dark Turquoise Part 79759c01 Element 6370224 ×1
  • Brick and Axle Separator v2.0 Dark Turquoise Part 96874 Element 6254100 ×1
  • Tile 1 x 1 with Groove Dark Turquoise Part 3070b Element 6213782 1 spare in the box ×19
  • Tile Remover Key Diamond [DOTS] Dark Turquoise Part 78169 Element 6375932 ×1
  • Tile Round 1 x 1 Half Circle Dark Turquoise Part 24246 Element 6313556 1 spare in the box ×10
  • Tile Round 1 x 1 Quarter Dark Turquoise Part 25269 Element 6240467 1 spare in the box ×24

Medium Lavender 55 pieces

  • Tile 1 x 1 with Groove Medium Lavender Part 3070b Element 6097301 1 spare in the box ×19
  • Tile Round 1 x 1 Half Circle Medium Lavender Part 24246 Element 6341398 1 spare in the box ×12
  • Tile Round 1 x 1 Quarter Medium Lavender Part 25269 Element 6199893 1 spare in the box ×24

Blue 54 pieces

  • Plate 16 x 16 Blue Part 91405 Element 4610305 ×1
  • Tile 1 x 1 with Groove Blue Part 3070b Element 4206330 or 307073 2 spares in the box ×21
  • Tile Round 1 x 1 Half Circle Blue Part 24246 Element 6268862 1 spare in the box ×8
  • Tile Round 1 x 1 Quarter Blue Part 25269 Element 6302961 1 spare in the box ×24

Yellow 54 pieces

  • Tile 1 x 1 with Groove Yellow Part 3070b Element 307024 1 spare in the box ×19
  • Tile Round 1 x 1 Half Circle Yellow Part 24246 Element 6300104 1 spare in the box ×11
  • Tile Round 1 x 1 Quarter Yellow Part 25269 Element 6195183 1 spare in the box ×24

Light Bluish Gray 3 pieces

  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side Light Bluish Gray Part 22885 Element 6123809 ×3

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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