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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.

Sonic the Hedgehog: Knuckles & Shadow

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40672 Sonic the Hedgehog: Knuckles & Shadow

298 pieces in 78 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

Red 124 pieces

  • Brick 1 x 1 Red Part 3005 Element 300521 ×2
  • Brick 1 x 4 Red Part 3010 Element 301021 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Red Part 11477 Element 6029946 ×9
  • Brick Curved 3 x 1 No Studs Red Part 50950 Element 4251162 ×4
  • Brick Curved 3 x 2 No Studs Red Part 24309 Element 6132210 ×1
  • Brick Curved 4 x 2 No Studs Red Part 93606 Element 4613174 ×1
  • Brick Sloped 30° 1 x 2 x 2/3 Red Part 85984 Element 4651524 ×1
  • Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder Red Part 15571 Element 6075074 ×1
  • Brick Sloped 45° 2 x 2 Red Part 3039 Element 303921 ×1
  • Brick Wedged, Curved 2 x 1 with Stud Notch Left Red Part 29120 Element 6177505 ×9
  • Brick Wedged, Curved 2 x 1 with Stud Notch Right Red Part 29119 Element 6177507 ×9
  • Plate 1 x 1 Red Part 3024 Element 302421 2 spares in the box ×19
  • Plate 1 x 2 Red Part 3023 Element 302321 ×14
  • Plate 1 x 4 Red Part 3710 Element 371021 ×5
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×3
  • Plate 2 x 2 Corner Red Part 2420 Element 242071 or 242021 ×12
  • Plate 2 x 3 Red Part 3021 Element 302121 ×3
  • Plate 2 x 4 Red Part 3020 Element 302021 ×3
  • Plate 4 x 4 Red Part 3031 Element 4243814 or 303121 ×4
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Red Part 15573 Element 6092565 ×10
  • Plate Special 1 x 2 with Clip Horizontal on Side Red Part 11476 Element 6313120 or 6178488 ×1
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Red Part 60478 Element 4515365 ×1
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×4
  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×1
  • Tile 45° Cut 2 x 2 (Triangle) Red Part 35787 Element 6351892 ×2
  • Tile Round 1 x 1 with Brickheadz Eye, White Squares, Black Circle Print Red Part 98138pr0338 Element 6471276 1 spare in the box ×2

Black 92 pieces

  • Bracket 1 x 1 - 1 x 1 Inverted Black Part 36840 Element 6234695 ×2
  • Brick 1 x 1 Black Part 3005 Element 300526 ×4
  • Brick 1 x 2 Black Part 3004 Element 300426 ×1
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Black Part 11477 Element 6047276 ×4
  • Brick Curved 3 x 1 No Studs Black Part 50950 Element 4251161 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 1 spare in the box ×6
  • Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder Black Part 15571 Element 6051508 ×1
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×1
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×2
  • Brick Wedged, Curved 2 x 1 with Stud Notch Left Black Part 29120 Element 6181720 ×5
  • Brick Wedged, Curved 2 x 1 with Stud Notch Right Black Part 29119 Element 6181713 ×5
  • Plate 1 x 2 Black Part 3023 Element 302326 ×12
  • Plate 1 x 3 Black Part 3623 Element 362326 ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 ×3
  • Plate 2 x 4 Black Part 3020 Element 302026 ×5
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×5
  • Plate 6 x 6 Black Part 3958 Element 395826 ×2
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 2 spares in the box ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Black Part 15573 Element 6092585 ×3
  • Plate Special 1 x 4 with 2 Studs with Groove [New Underside] Black Part 41740 Element 6254045 ×2
  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 1 spare in the box ×10
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×4
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×2
  • Tile 1 x 4 with Red Triangle Print Black Part 2431pr0204 Element 6471095 ×1
  • Tile 2 x 4 with Groove Black Part 87079 Element 4560182 ×2
  • Tile 45° Cut 2 x 2 (Triangle) Black Part 35787 Element 6214807 ×2

Light Bluish Gray 30 pieces

  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side Light Bluish Gray Part 22885 Element 6123809 ×28
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×2

White 22 pieces

  • Bracket 1 x 2 - 2 x 2 White Part 44728 Element 6619296 or 6117940 ×1
  • Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] White Part 22388 Element 6314487 1 spare in the box ×4
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) White Part 4032a Element 6601914 or 403201 ×1
  • Plate Special 1 x 2 with Clip Horizontal on Side White Part 11476 Element 6313115 or 6070712 ×4
  • Plate Special 1 x 4 with 2 Studs with Groove [New Underside] White Part 41740 Element 6249091 ×2
  • Plate Special 2 x 2 with Only 2 studs White Part 33909 Element 6552170 or 6548287 ×2
  • Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 2 spares in the box ×4
  • Tile 45° Cut 2 x 2 (Triangle) White Part 35787 Element 6550176 or 6217875 ×1

Tan 8 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Tan Part 15573 Element 6092587 ×2
  • Tile Round 1 x 1 Quarter Tan Part 25269 Element 6145570 2 spares in the box ×6

Bright Light Orange 4 pieces

  • Plate Special Round 1 x 2 Half Circle with Stud (Jumper) Bright Light Orange Part 1745 Element 6510065 or 6470884 ×4

Orange 4 pieces

  • Brick Round 2 x 2 with Axle Hole Orange Part 3941 Element 4141089 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Orange Part 15573 Element 6092599 ×2

Green 3 pieces

  • Brick 2 x 2 Green Part 3003 Element 300328 ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Green Part 4032a Element 403228 ×1

Bright Green 2 pieces

  • Plate 1 x 2 Bright Green Part 3023 Element 6343326 or 6014491 ×2

Bright Light Yellow 2 pieces

  • Brick 2 x 2 Bright Light Yellow Part 3003 Element 6212064 ×2

Bright Pink 2 pieces

  • Brick 2 x 2 Bright Pink Part 3003 Element 4550359 or 4245307 ×2

Dark Purple 2 pieces

  • Tile Round 1 x 1 with Brickheadz Eye, White Squares, Black Circle Print Dark Purple Part 98138pr0338 Element 6471274 1 spare in the box ×2

Yellow 2 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Yellow Part 4032a Element 403224 ×1
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Half Hollow Anti-stud] - Updated Version Yellow Part 4304 Element 6469455 ×1

Dark Turquoise 1 piece

  • Brick Round 2 x 2 with Axle Hole Dark Turquoise Part 3941 Element 6290502 ×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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