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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.

Mail Van

Checking

7731 Mail Van

62 pieces in 35 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

Yellow 27 pieces

  • Brick 1 x 2 x 2 with Inside Axle Holder Yellow Part 3245b ×2
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×2
  • Brick Sloped 45° 2 x 4 Yellow Part 3037 Element 4219911 or 303724 ×1
  • Brick Special 1 x 1 with Headlight Yellow Part 4070 Element 407024 ×2
  • Brick Wedged, Curved Triple 4 x 4 x 2/3, 2 Studs Yellow Part 45677 Element 6492532 or 4193073 ×1
  • Panel 1 x 1 x 1 Corner Yellow Part 6231 Element 4201587 or 4113238 ×2
  • Panel 1 x 4 x 1 with Rounded Corners [Thick Wall] Yellow Part 43337 Element 6078611 or 4239160 ×2
  • Plate 1 x 3 Yellow Part 3623 Element 362324 ×2
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×3
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×1
  • Plate Special 1 x 2 with Door Rail Yellow Part 32028 Element 4141630 ×4
  • Wheel Arch, Mudguard 4 x 2 1/2 x 2 with 2 x 2 Plate Yellow Part 50745 Element 4288594 ×4
  • Window 1 x 4 x 3 without Shutter Tabs Yellow Part 60594 Element 6316742 or 4530591 ×1

Red 9 pieces

  • Box 2 x 2 x 2 Door with Slot Red Part 4346 Element 4521851 or 434621 ×1
  • Box 2 x 2 x 2 [Hollow Studs] Red Part 4345b Element 4261628 or 434571 ×1
  • Brick Curved 2 x 2, Two Top Studs Red Part 30165 Element 4521852 or 4142112 ×1
  • Plate 1 x 4 Red Part 3710 Element 371021 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Red Part 3794a ×1
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×2
  • Vehicle Base 4 x 10 x 2/3 with 2 x 2 Recessed Center with Smooth Underside, 1 x 2 Cutouts, No Center Hole Red Part 4212b Element 4188423 or 421221 ×1

Black 6 pieces

  • Plate Special 2 x 2 with Wheels Holder Wide - Technic Pins Black Part 47720 Element 6354604 or 4217725 ×2
  • Tyre 17.5 x 6 with Shallow Staggered Treads Black Part 51011 Element 4515290 or 4239237 ×4

Light Bluish Gray 6 pieces

  • Lever Small Base with Black Lever Light Bluish Gray Part 298c02 Element 4221775 1 spare in the box ×1
  • Panel 1 x 2 x 2 [Hollow Studs] Light Bluish Gray Part 4864b Element 4211576 ×1
  • Wheel 11 x 8 with Center Groove Light Bluish Gray Part 42610 Element 4211758 ×4

Dark Bluish Gray 4 pieces

  • Brick Special 1 x 2 with Grille Dark Bluish Gray Part 2877 Element 4210636 ×1
  • Door 1 x 2 x 3 with Vertical Handle, Round Handle Holes on Back Dark Bluish Gray Part 60614 Element 6404411 or 4521386 ×2
  • Support Round 2 x 2 x 2 Stand with Reach-Through Center Hole Dark Bluish Gray Part 3940b Element 4211110 ×1

Blue 2 pieces

  • Seat / Chair 2 x 2 Blue Part 4079 ×1
  • Steering Stand 1 x 2 with Black Steering Wheel Blue Part 3829c01 Element 9566 ×1

Trans-Red 2 pieces

  • Plate 1 x 1 Trans-Red Part 3024 Element 6513963 or 6252042 ×2

Trans-Yellow 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×2

White 2 pieces

  • Tile 1 x 2 with Mail Envelope, Letter, Address and Red Stamp Print White Part 3069bpr0099 Element 4521848 or 80170 ×2

Trans-Light Blue 1 piece

  • Windscreen 3 x 4 x 1 1/3 Large Glass Surface Trans-Light Blue Part 57783 Element 6507932 or 6247360 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 7731-1 [No Color/Any Color] Part 61968 Element 4520692 ×1

Minifigures 1 figure

  • Postal Worker, Red Jacket with Zipper and Letter Logo, Black Legs, Red Cap, Beard and Glasses 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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