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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.

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3552 Hover Sub

126 pieces in 33 part and color combinations.

LEGO counts 123 pieces. This inventory comes from a separate parts catalog and lists 126; 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

Black 46 pieces

  • Battery Box, 9V Small [Complete Assembly] Black Part 4760c01 Element 4109849 ×1
  • Wheel 32mm Znap Propeller Black Part 32219 Element 4120493 ×4
  • Wire with Brick 2 x 2 x 2/3 Pair, 20L Black Part 5306bc020 Element 4100355 ×1
  • Znap Beam 1/2 Circle Radius 2L Black Part 32205 Element 4128656 or 4120409 ×2
  • Znap Beam 1/4 Circle Radius 8L Black Part 32230 Element 4120489 ×4
  • Znap Beam 16, 9 Holes, 5 Bends Black Part 32208 Element 4120423 ×1
  • Znap Beam 3, 1 Hole Black Part 32210 Element 4128660 or 4120411 ×18
  • Znap Beam 7, 3 Holes Black Part 32203 Element 4128652 or 4120186 ×10
  • Znap Beam 9, 5 Holes, 4 Bends (Half-Octagon) Black Part 32206 Element 4120189 ×3
  • Znap Beam 9, 8 Holes, Triangular Black Part 32214 Element 4125309 or 4125160 ×2

Purple 30 pieces

  • Znap Connector 3 x 3 - 4 way B (Beam) Purple Part 32211 Element 4120200 ×30

Light Gray 23 pieces

  • Brick Special 2 x 2 with Pin and Axle Hole Light Gray Part 6232 Element 623202 ×2
  • Motor, 9V Mini [Old Style] Light Gray Part 71427c01 Element 4107786 ×1
  • Technic Axle Connector Ridged [with x Hole x Orientation] Light Gray Part 6538b Element 4113804 or 4100408 ×1
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×5
  • Technic Gear 16 Tooth with Round Holes [Old Style] Light Gray Part 4019 Element 4107176 or 401902 ×2
  • Technic Gear 8 Tooth Light Gray Part 3647 Element 364702 ×2
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×3
  • Znap Connector 1 x 3 - 2 way A Light Gray Part 32212 Element 4120191 ×7

Green 15 pieces

  • Znap Beam 11, 4 Holes, 2 Bends Green Part 32204 Element 4120428 ×2
  • Znap Beam 15, 7 Holes Green Part 32229 Element 4120449 ×2
  • Znap Beam 16, 14 Holes, Curved Green Part 32216 Element 4125302 or 4120444 ×2
  • Znap Beam 3, 1 Hole Green Part 32210 Element 4128661 or 4120412 ×2
  • Znap Beam 7, 3 Holes Green Part 32203 Element 4128653 or 4120408 ×2
  • Znap Beam 9, 8 Holes, Triangular Green Part 32214 Element 4125310 or 4125161 ×2
  • Znap Beam Double Curve 4 Holes Green Part 32218 Element 4125306 or 4120487 ×1
  • Znap Grid 9 x 7, 15 Holes Green Part 32213 Element 4125299 or 4120442 ×1
  • Znap Grid Motor Holder Green Part 32225 Element 4121531 ×1

Dark Gray 6 pieces

  • Znap Connector 3 x 3 - 4 way A (Axial) Dark Gray Part 32221 Element 4120479 ×4
  • Znap Crank Connector 1 x 2 x 3 Dark Gray Part 32207 Element 4120472 ×2

White 6 pieces

  • Technic Axle 3 White Part 4519 Element 4124021 ×1
  • Technic Axle 5.5 with Stop [Flat Short End] White Part 32209 Element 4120471 ×3
  • Technic Axle Flexible 26L (Axle 2L and 5L Ends) with Dark Gray Cable White Part 72892 ×2

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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