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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.

Solo Trainer

Checking

6673 Solo Trainer

70 pieces in 48 part and color combinations, plus 1 minifigure.

The official piece count includes the 4 parts inside the set's minifigures, which this inventory lists separately. 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

White 30 pieces

  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×1
  • Brick Round 2 x 2 with Axle Hole White Part 3941 Element 6601920 or 614351 ×1
  • Brick Sloped 33° 3 x 2 White Part 3298 Element 329801 ×2
  • Brick Wedged, Sloped 4 x 4 Taper White Part 4858 Element 485801 ×1
  • Brick Wedged, Sloped Inverted 4 x 4 Triple [2 Connections between Front Studs] White Part 4855 Element 485501 ×1
  • Brick Wedged, Sloped Inverted 6 x 4 with 2 Stud Connections White Part 4856a ×1
  • Hinge Vehicle Roof 4 x 4 White Part 4213 Element 4256454 or 421301 ×1
  • Hinge Vehicle Roof Holder 1 x 4 White Part 4315 Element 4214079 or 4190507 ×1
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×1
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×2
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×1
  • Plate 2 x 12 White Part 2445 Element 6552091 or 244501 ×1
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×2
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×3
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) White Part 3794a ×1
  • Plate Special 2 x 2 with Wheel Holder White Part 4488 Element 448801 ×2
  • Tile 1 x 4 with Groove White Part 2431 Element 6548255 or 243101 ×1
  • Wedge Plate 3 x 4 without Stud Notches White Part 4859 Element 4215973 or 4199395 ×1
  • Wedge Plate 4 x 9 without Stud Notches White Part 2413 Element 241351 or 241301 ×2

Red 8 pieces

  • Bar 1 x 4 x 2 with Studs Red Part 4083 Element 6001207 or 4550383 ×1
  • Plate 1 x 4 Red Part 3710 Element 371021 ×1
  • Plate 1 x 6 Red Part 3666 Element 366621 ×2
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Red Part 4032a Element 403221 ×1
  • Wedge Plate 3 x 4 without Stud Notches Red Part 4859 ×2

Black 7 pieces

  • Brick Sloped 45° 2 x 2 with 3 Gauges and 3 Knobs Print Black Part 3039pr9970 Element 4251812 or 4163777 ×1
  • Propeller 3 Blade Small Black Part 2421 Element 6170693 or 4289255 ×2
  • Tool Screwdriver and Spanner / Wrench Black Part 4006 Element 6034000 or 4569095 ×1
  • Tyre 14 x 4 Smooth Small Single Black Part 3139 Element 313926 ×3

Blue 7 pieces

  • Brick 1 x 4 Blue Part 3010 Element 301023 ×1
  • Brick 2 x 2 Blue Part 3003 Element 4103589 or 300373 ×1
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Blue Part 3747a Element 4500460 or 374723 ×1
  • Brick Wedged 3 x 4 [No Stud Notches] Blue Part 2399 Element 239923 ×1
  • Brick Wedged, Sloped 4 x 4 Taper Blue Part 4858 Element 485823 ×1
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×1
  • Tail 4 x 2 x 2 Blue Part 3479 Element 4118824 or 347973 ×1

Light Gray 6 pieces

  • Cone 1 x 1 [No Top Groove] Light Gray Part 4589 Element 458902 ×1
  • Minifig Hose Nozzle Simple with 13L Black String Light Gray Part 194c04 Element 4105188 ×1
  • Plate 2 x 8 Light Gray Part 3034 Element 303402 ×1
  • Wheel Holder 2 x 2 Thin with Clips, Plane Single Light Gray Part 2415 Element 241502 ×3

Trans-Light Blue 5 pieces

  • Panel 1 x 2 x 1 [Square Corners] Trans-Light Blue Part 4865a Element 4618924 or 4239181 ×4
  • Windscreen 3 x 4 x 1 1/3 with 2 Studs on Top Trans-Light Blue Part 2437 Element 6507914 or 6253361 ×1

Trans-Clear 3 pieces

  • Wheel Centre Small with Stub Axles (Pulley Wheel) Trans-Clear Part 3464 ×3

Trans-Red 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 ×2

Trans-Green 1 piece

  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×1

Yellow 1 piece

  • Brick Round 2 x 2 with Axle Hole Yellow Part 3941 Element 614324 or 394124 ×1

Minifigures 1 figure

  • Man, Blue Torso, Red Legs, Red Cap (3626a Head) Minifigure, checked as a whole figure ×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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