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.

Fire Engine

Checking

374-2 Fire Engine

73 pieces in 38 part and color combinations.

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.

Show

Piece checklist

Bricks 26 pieces

  • Brick 2 x 2 without Inside Ridges Black Part 3003a ×1
  • Brick 1 x 1 Blue Part 3005 Element 300523 ×2
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×8
  • Brick 1 x 2 with LEGO Logo Closed O White with Black Outline Print Red Part 3004pr9968 ×1
  • Brick 1 x 4 Red Part 3010 Element 301021 ×3
  • Brick 1 x 6 Red Part 3009 Element 300921 ×4
  • Brick 1 x 6 with Black Car Grill Print Red Part 3009apr0004 ×1
  • Brick 2 x 2 without Inside Ridges Red Part 3003a ×1
  • Brick 2 x 4 without Cross Supports Red Part 3001a ×1
  • Brick 2 x 8 Red Part 3007 Element 6036408 or 300721 ×2
  • Brick 1 x 4 Trans-Clear Part 3010 Element 4256588 or 4227529 ×1
  • Brick 1 x 6 Trans-Clear Part 3009 Element 4235131 or 4130397 ×1

Plates 15 pieces

  • Plate 1 x 2 Red Part 3023 Element 302321 ×4
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×5
  • Plate 2 x 3 Red Part 3021 Element 302121 ×2
  • Plate 2 x 4 Red Part 3020 Element 302021 ×4

Wheels and Tyres 13 pieces

  • Brick Special 2 x 2 [Red Wheels for Single Tyre] Black Part 3137c01 ×1
  • Brick Special 2 x 4 with Wheel Holder Old, Clear Bottom, Red Inside Black Part 7049bc01 ×1
  • Tyre 14 x 4 Smooth Small Single Black Part 3139 Element 313926 ×2
  • Tyre Smooth Old Style - Small Black Part 132a ×4
  • Vehicle, Steering Gear 2 x 4 [Complete Assembly] Black Part 799c800 ×1
  • Wheel Spoked with Stud Red Part 242c01 ×4

Plates Special 6 pieces

  • Plate Special 1 x 4 with Towball Red Part 3184 Element 318421 ×1
  • Plate Special 1 x 4 with Towball Socket, Long, 4 Slots Red Part 3183b ×1
  • Plate Special 4 x 6 with Hole Red Part 709 ×1
  • Plate Special 5 x 6 with Hole Red Part 711 ×3

Windows and Doors 4 pieces

  • Door 1 x 3 x 2 Left Red Part 3189 Element 4121824 ×1
  • Door 1 x 3 x 2 Right Red Part 3188 Element 4121823 ×1
  • Door 1 x 3 x 3 Left with Window and Vertical Handle Red Part 801 ×1
  • Door 1 x 3 x 3 Right with Window and Vertical Handle Red Part 802 ×1

Bars, Ladders and Fences 3 pieces

  • Ladder 10.3cm (collapsed) 2 & 3 Piece - Bottom Section Yellow Part 850 ×1
  • Ladder 10.3cm (collapsed) 3-Piece - Middle Section Yellow Part 851a ×1
  • Ladder 10.3cm (collapsed) 3-Piece - Top Section Yellow Part 852 ×1

Bricks Sloped 2 pieces

  • Brick Sloped 45° 2 x 2 Red Part 3039 Element 303921 ×2

Hinges, Arms and Turntables 2 pieces

  • Hinge Plate 2 x 5 with Small Hole [Complete Assembly] Red Part 3149ac01 ×1
  • Turntable 4 x 4 - Old Type Complete - Faceted Red Part 3404ac01 ×1

Bricks Round and Cones 1 piece

  • Brick Round 1 x 1 Solid Stud Blue Part 3062a ×1

Transportation - Land 1 piece

  • Vehicle Base 6 x 17 for Steering Gear Red Part 806 ×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.