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.

Motorized Truck Set

Checking

371-2 Motorized Truck Set

314 pieces in 65 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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Plates 141 pieces

  • Plate 1 x 2 [Old Style Bottom] Black Part 3023a ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 ×2
  • Plate 1 x 1 Blue Part 3024 Element 302423 ×14
  • Plate 1 x 2 [Old Style Bottom] Blue Part 3023a ×54
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×7
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×6
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×4
  • Plate 6 x 12 Light Gray Part 3028 Element 302802 ×2
  • Plate 6 x 24 Light Gray Part 3026 Element 4114520 ×1
  • Plate 1 x 2 [Old Style Bottom] Red Part 3023a ×14
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×4
  • Plate 2 x 3 Red Part 3021 Element 302121 ×2
  • Plate 2 x 2 Trans-Clear Part 3022 Element 4541740 or 4238011 ×2
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 ×4
  • Plate 1 x 2 [Old Style Bottom] White Part 3023a ×18
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×4
  • Plate 4 x 8 with Waffle Bottom White Part 3035a ×1

Bricks 94 pieces

  • Brick 1 x 1 Blue Part 3005 Element 300523 ×18
  • Brick 1 x 2 with LEGO Logo Open O White with Black Outline Print Blue Part 3004pr9974 ×2
  • Brick 1 x 2 without Bottom Tube Blue Part 3065 ×16
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×6
  • Brick 1 x 6 without Bottom Tubes, with 2 Raised Cross Supports Blue Part 3009a ×2
  • Brick 1 x 8 without Bottom Tubes with Cross Side Supports Blue Part 3008a ×10
  • Brick 2 x 2 without Inside Ridges Blue Part 3003a ×2
  • Brick 2 x 3 without Cross Supports Blue Part 3002a ×2
  • Brick 2 x 4 without Cross Supports Blue Part 3001a ×3
  • Brick 2 x 8 Blue Part 3007 Element 6037384 or 300723 ×2
  • Brick 1 x 2 with LEGO Logo Open O White with Black Outline Print Red Part 3004pr9974 ×1
  • Brick 1 x 2 without Bottom Tube Red Part 3065 ×6
  • Brick 1 x 6 without Bottom Tubes, with 2 Raised Cross Supports Red Part 3009a ×3
  • Brick 2 x 3 without Cross Supports Red Part 3002a ×2
  • Brick 2 x 4 without Cross Supports Red Part 3001a ×1
  • Brick 1 x 1 Trans-Clear Part 3005 Element 6514207 or 6220959 Also in White ×2
  • Brick 1 x 2 without Bottom Tube Trans-Clear Part 3065 Element 6514262 or 6244904 ×9
  • Brick 1 x 4 Trans-Clear Part 3010 Element 4256588 or 4227529 ×1
  • Brick 1 x 6 without Bottom Tubes, with 2 Raised Cross Supports Trans-Clear Part 3009a ×1
  • Brick 2 x 2 without Inside Ridges Trans-Clear Part 3003a ×1
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 Also in Trans-Clear ×4

Wheels and Tyres 35 pieces

  • Tyre Smooth Old Style - Small Light Gray Part 132a ×14
  • Wheel Old with 4 Studs Red Part 7039 Element 7039 ×11
  • Wheel Old with 4 Studs and Axle Cam for Motor Red Part 7039b ×4
  • Brick Special 2 x 4 with Wheel Holder Old, Clear Bottom, Red Inside White Part 7049bc01 ×5
  • Vehicle, Steering Gear 2 x 4 [Complete Assembly] White Part 799c800 ×1

Bricks Round and Cones 18 pieces

  • Brick Round 1 x 1 Solid Stud White Part 3062a ×18

Windows and Doors 8 pieces

  • Door 1 x 3 x 4 Left Blue Part 3193 ×1
  • Door 1 x 3 x 4 Right Blue Part 3192 ×1
  • Door 1 x 5 x 4 Left Blue Part 3195 ×1
  • Door 1 x 5 x 4 Right Blue Part 3194 ×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
  • Window 1 x 1 x 1 Classic with Long Sill [Complete] White Part 3087bc01 ×2

Electronics 7 pieces

  • Battery Box, 4.5V 7 x 11 x 3 Type 1 [Complete Assembly] Blue Part 468c01 ×1
  • Electric Connector, 1 Way Male Rounded with Hollow Pin (Banana Plug) Blue Part 996ac01 ×4
  • Motor, Train, 4.5V 12 x 4 x 4 Type I Blue Part upn0284c02 ×1
  • Wire 12V / 4.5V with Two Leads [Undetermined Length] White Part 74503 ×1

Plates Special 4 pieces

  • Plate Special 6 x 16 with Motor Opening Wide Light Gray Part 3058b ×1
  • Plate Special 3 x 2 with Rounded End, Hole Red Part 3176 Element 4188189 or 317621 ×1
  • Plate Special 4 x 6 with Hole Red Part 709 ×1
  • Plate Special 5 x 6 with Hole Red Part 711 ×1

Bricks Sloped 3 pieces

  • Brick Sloped 45° 2 x 2 Red Part 3039 Element 303921 ×1
  • Brick Sloped 45° 2 x 3 Red Part 3038 Element 6303213 or 4195081 ×2

Hinges, Arms and Turntables 1 piece

  • Turntable 4 x 4 - Old Type Complete, Perfectly Round White Part 3404bc01 ×1

String, Bands and Reels 1 piece

  • Winch 4 x 4 x 2 with Sloped Top with Black Drum [Complete Assembly] Red Part 559c01 ×1

Supports, Girders and Cranes 1 piece

  • Hook, Plate 1 x 2 with Crane Hook Right Red Part 3127b ×1

Transportation - Land 1 piece

  • Vehicle Base 4 x 14 for Steering Gear Light Gray Part 804 ×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.