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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.

Jet-Ski

Checking

40099 Jet-Ski

33 pieces in 20 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 9 pieces

  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Bluish Gray Part 3660 Element 4211000 ×5
  • Brick Sloped 30° 1 x 2 x 2/3 Lime Part 85984 Element 6025026 ×4

Plates 6 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×3
  • Plate 6 x 6 Black Part 3958 Element 395826 ×1
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×2

Bricks Curved 4 pieces

  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Lime Part 6091 Element 6411328 or 4212446 ×4

Plates Wedged 4 pieces

  • Wedge Plate 3 x 2 Left Black Part 43723 Element 4180536 ×1
  • Wedge Plate 3 x 2 Right Black Part 43722 Element 4180508 ×1
  • Wedge Plate 3 x 2 Left White Part 43723 Element 6552121 or 4179875 ×1
  • Wedge Plate 3 x 2 Right White Part 43722 Element 6552120 or 4179874 ×1

Bricks Wedged 3 pieces

  • Brick Wedged, Curved Inverted 6 x 2 Left Dark Bluish Gray Part 41765 Element 4662199 or 4210786 ×1
  • Brick Wedged, Curved Inverted 6 x 2 Right Dark Bluish Gray Part 41764 Element 4662198 or 4210785 ×1
  • Brick Wedged, Curved 4 x 3 No Studs [Plain] Lime Part 64225 Element 6023954 ×1

Plates Special 2 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Dark Bluish Gray Part 3794b Element 4211119 ×1
  • Plate Special 2 x 2 with Wheel Holder Light Bluish Gray Part 4488 Element 6018081 or 4211496 ×1

Tiles Special 2 pieces

  • Tile Special 1 x 2 with Handle Blue Part 2432 Element 243223 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 ×1

Plates Round Curved and Dishes 1 piece

  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×1

Transportation - Land 1 piece

  • Steering Stand 1 x 2 with Black Steering Wheel Blue Part 3829c01 Element 9566 ×1

Transportation - Sea and Air 1 piece

  • Propeller 3 Blade Small Black Part 2421 Element 6170693 or 4289255 ×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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