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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.

Mater's Spy Zone

Checking

8424 Mater's Spy Zone

33 pieces in 25 part and color combinations, plus 2 minifigures.

The piece count includes the 81 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

Light Bluish Gray 11 pieces

  • Brick 1 x 8 Light Bluish Gray Part 3008 Element 4211392 ×1
  • Brick 2 x 2 Corner Light Bluish Gray Part 2357 Element 4211349 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Light Bluish Gray Part 85984 Element 4568637 ×2
  • Cone 1 x 1 [Top Groove] Light Bluish Gray Part 59900 Element 4529241 ×1
  • Dish 6 x 6 Inverted, Radar / Webbed [Anti-studs at 90°] Light Bluish Gray Part 4285b Element 4211487 ×1
  • Technic Pin 1/2 with 2L Bar Extension Light Bluish Gray Part 61184 Element 6347715 or 4520320 ×2
  • Tile 2 x 4 with Groove Light Bluish Gray Part 87079 Element 4560183 ×1
  • Tile Round 2 x 2 with Bottom Cross Light Bluish Gray Part 4150 Element 4211480 ×1

Yellow 7 pieces

  • Brick Sloped 33° 3 x 1 Yellow Part 4286 Element 428624 ×1
  • Brick Special 1 x 2 with Vertical Clip [Thick U Clip] Yellow Part 30237a ×2
  • Plate Special 1 x 2 with Clip Horizontal on End Yellow Part 63868 Element 6347284 or 4535740 ×2
  • Tile 1 x 4 with Groove Yellow Part 2431 Element 243124 ×1
  • Tile 1 x 6 with Groove Yellow Part 6636 Element 6388488 or 663624 ×1

Black 4 pieces

  • Bar 1 x 6 [Closed Studs] Black Part 6140 Element 6415609 or 614026 ×1
  • Equipment Space Scanner Black Part 30035 Element 4248831 or 4143705 ×1
  • Technic Pin Connector Double with Bar [2 Holes] Black Part 85940 Element 6173124 or 4562148 ×1
  • Weapon Lance Black Part 3849 Element 6345264 or 384926 ×1

Dark Bluish Gray 3 pieces

  • Brick Special 1 x 4 with 4 Studs on One Side Dark Bluish Gray Part 30414 Element 4210725 ×1
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×1
  • Plate 4 x 10 Dark Bluish Gray Part 3030 Element 4211122 ×1

Red 3 pieces

  • Cone 1 x 1 [Top Groove] Red Part 59900 Element 4529234 ×2
  • Dish 2 x 2 Inverted [Radar] Red Part 4740 Element 4585146 or 4279383 ×1

Trans-Red 3 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×3

White 1 piece

  • Plate Special 4 x 4, Studs on One Edge Plain] White Part 6179 Element 6550149 or 617901 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 8424-1 [No Color/Any Color] Part 96191 Element 4624490 ×1

Minifigures 2 figures

  • Holley Shiftwell, Trans-Dark Blue Windscreen Minifigure, checked as a whole figure ×1
  • Tow Mater, Spy (60897 Clips) 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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