Free tool

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.

Blackmobile

Checking

3571 Blackmobile

143 pieces in 27 part and color combinations.

LEGO counts 142 pieces. This inventory comes from a separate parts catalog and lists 143; 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

Znap 116 pieces

  • Znap Beam 15, 7 Holes Black Part 32229 Element 4120199 ×8
  • Znap Beam 16, 14 Holes, Curved Black Part 32216 Element 4125300 or 4125155 ×4
  • Znap Beam 3, 1 Hole Black Part 32210 Element 4128660 or 4120411 ×4
  • Znap Beam 7, 3 Holes Black Part 32203 Element 4128652 or 4120186 ×14
  • Znap Beam 9, 5 Holes, 4 Bends (Half-Octagon) Black Part 32206 Element 4120189 ×7
  • Znap Beam 9, 8 Holes, Triangular Black Part 32214 Element 4125309 or 4125160 ×7
  • Znap Grid 9 x 7, 15 Holes Black Part 32213 Element 4125298 or 4125163 ×5
  • Znap Connector 3 x 3 - 4 way A (Axial) Dark Gray Part 32221 Element 4120479 ×2
  • Znap Crank Connector 1 x 2 x 3 Dark Gray Part 32207 Element 4120472 ×4
  • Znap Connector 1 x 3 - 2 way A Light Gray Part 32212 Element 4120191 ×16
  • Znap Connector 3 x 3 - 4 way B (Beam) Purple Part 32211 Element 4120200 ×28
  • Technic Axle Flexible 26L (Axle 2L and 5L Ends) with Dark Gray Cable White Part 72892 ×2
  • Znap Beam 3, 1 Hole Yellow Part 32210 Element 4128659 or 4120190 ×4
  • Znap Beam 9, 5 Holes, 4 Bends (Half-Octagon) Yellow Part 32206 Element 4120188 ×2
  • Znap Beam 9, 8 Holes, Triangular Yellow Part 32214 Element 4125308 or 4120193 ×2
  • Znap Connector 3 x 3 - 4 way C (Closed) Yellow Part 76319 Element 4125496 ×6
  • Znap Grid Motor Holder Yellow Part 32225 Element 4120419 ×1

Wheels and Tyres 8 pieces

  • Wheel 32mm Znap Propeller Yellow Part 32219 Element 4120494 ×4
  • Wheel 68mm Znap Propeller (9 x 2) Yellow Part 32220 Element 4120196 ×4

Technic Axles 5 pieces

  • Technic Axle 5.5 with Stop [Flat Short End] White Part 32209 Element 4120471 ×5

Technic Pins 5 pieces

  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×5

Technic Gears 4 pieces

  • 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

Electronics 3 pieces

  • Battery Box, 9V Small [Complete Assembly] Black Part 4760c01 Element 4109849 ×1
  • Wire with Brick 2 x 2 x 2/3 Pair, 20L Black Part 5306bc020 Element 4100355 ×1
  • Motor, 9V Mini [Old Style] Light Gray Part 71427c01 Element 4107786 ×1

Bricks Special 2 pieces

  • Brick Special 2 x 2 with Pin and Axle Hole Light Gray Part 6232 Element 623202 ×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.