BlockTalk Find Your Set

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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.

Blue Hopper Car

Checking

4536 Blue Hopper Car

166 pieces in 47 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

Bricks Sloped 36 pieces

  • Brick Sloped 33° 3 x 4 Blue Part 3297 Element 6088711 or 329723 ×2
  • Brick Sloped 45° 2 x 4 Blue Part 3037 Element 4107437 or 303723 ×16
  • Brick Sloped Inverted 45° 2 x 1 Blue Part 3665 Element 366523 ×8
  • Brick Sloped Inverted 45° 2 x 2 Double Convex Blue Part 3676 Element 4240166 or 4101706 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Blue Part 3660 Element 366023 ×6

Plates 33 pieces

  • Plate 1 x 4 Black Part 3710 Element 371026 ×3
  • Plate 1 x 6 Black Part 3666 Element 366626 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×4
  • Plate 2 x 6 Black Part 3795 Element 379526 ×1
  • Plate 1 x 10 Blue Part 4477 Element 447723 ×2
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×4
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×2
  • Plate 1 x 10 Light Gray Part 4477 Element 447702 ×2
  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×5
  • Plate 1 x 6 Light Gray Part 3666 Element 366602 ×2
  • Plate 2 x 2 Corner Light Gray Part 2420 Element 242052 or 242002 ×6
  • Plate 6 x 16 Light Gray Part 3027 Element 4160991 or 302702 ×1

Bricks Round and Cones 24 pieces

  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×12
  • Brick Round 1 x 1 Open Stud Yellow Part 3062b Element 306844 or 306224 ×12

Bars, Ladders and Fences 18 pieces

  • Antenna 1 x 4 with Rounded Top Light Gray Part 3957a Element 395702 ×2
  • Bar 1 x 6 [Open Studs] Light Gray Part 4873 ×2
  • Lever Small Base with Light Gray Lever Light Gray Part 298c03 Element 73777 1 spare in the box ×2
  • Fence Gate 1 x 4 x 2 White Part 3186 Element 4164409 or 318601 ×4
  • Fence Gate 1 x 4 x 2 Base White Part 3187 Element 4164410 or 318701 ×4
  • Fence Lattice 1 x 4 x 1 White Part 3633 Element 4550171 or 363301 ×4

Tiles 17 pieces

  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 1 spare in the box ×1
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×1
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×2
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×3
  • Tile 1 x 2 with Groove Light Gray Part 3069b Element 306902 ×2
  • Tile 1 x 4 with Groove Light Gray Part 2431 Element 243102 ×4
  • Tile 1 x 8 with Groove Light Gray Part 4162 Element 416202 ×2
  • Tile 1 x 8 with Groove White Part 4162 Element 6552110 or 416201 ×2

Bricks 16 pieces

  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×8
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×2
  • Brick 1 x 6 Blue Part 3009 Element 300923 ×4
  • Brick 1 x 8 Blue Part 3008 Element 300823 ×2

Bricks Special 4 pieces

  • Brick Special 1 x 1 with Headlight Light Gray Part 4070 Element 407002 ×4

Magnets and Holders 4 pieces

  • Magnet Cylindrical Black Part 73092 Element 73092 ×2
  • Train Coupling New Black Part 2920 Element 4299239 or 292076 ×2

Panels 4 pieces

  • Panel 1 x 2 x 2 [Solid Studs] Blue Part 4864a Element 486423 ×4

Plates Special 4 pieces

  • Plate Special 1 x 2 with Ladder Light Gray Part 4175 Element 4100526 or 417502 ×4

Transportation - Land 3 pieces

  • Vehicle Base, Train 6 x 16 Black Part 4178 ×1
  • Wheel Holder, Train with Wheels [Complete Assembly] Black Part 2878c01 Element 4207401 or 74784 ×2

Hinges, Arms and Turntables 2 pieces

  • Hinge Vehicle Roof 4 x 4 Black Part 4213 Element 421326 ×1
  • Hinge Vehicle Roof Holder 1 x 4 Black Part 4315 Element 4250225 or 431576 ×1

Stickers 1 piece

  • Sticker Sheet for Sets 4536-1, 4543-1, 4546-1, 4551-1 [No Color/Any Color] Part 164585 Element 164585 ×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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