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.

Locomotive with Driver & Passenger

Checking

252 Locomotive with Driver & Passenger

115 pieces in 35 part and color combinations.

LEGO counts 121 pieces. This inventory comes from a separate parts catalog and lists 115; the two do not always count the same elements, so their totals differ. 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.

Show

Piece checklist

Bricks 77 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×2
  • Brick 2 x 2 without Inside Ridges Black Part 3003a ×3
  • Brick 2 x 4 without Cross Supports Black Part 3001a ×8
  • Brick 2 x 2 without Inside Ridges Blue Part 3003a ×6
  • Brick 2 x 4 without Cross Supports Blue Part 3001a ×8
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×4
  • Brick 1 x 6 Red Part 3009 Element 300921 ×4
  • Brick 2 x 10 Red Part 3006 Element 4617857 or 300621 ×2
  • Brick 2 x 2 without Inside Ridges Red Part 3003a ×8
  • Brick 2 x 4 without Cross Supports Red Part 3001a ×18
  • Brick 2 x 8 Red Part 3007 Element 6036408 or 300721 ×3
  • Brick 1 x 6 Trans-Clear Part 3009 Element 4235131 or 4130397 ×3
  • Brick 2 x 2 without Inside Ridges Yellow Part 3003a ×4
  • Brick 2 x 4 without Cross Supports Yellow Part 3001a ×4

Hinges, Arms and Turntables 14 pieces

  • Arm Holder Brick 2 x 2 with Hole and 2 Arms Blue Part 792c03 ×1
  • Arm Piece Straight with 2 and 3 Fingers Blue Part 3612 Element 610123 ×2
  • Arm Piece with Towball Socket, 3 Fingers Blue Part 3613 ×2
  • Arm Holder Brick 2 x 2 with Hole and 2 Arms Red Part 792c03 ×1
  • Arm Piece Straight with 2 and 3 Fingers Red Part 3612 Element 4174740 ×2
  • Arm Piece with Towball Socket, 3 Fingers Red Part 3613 ×2
  • Plate Round 1 x 1 with Towball and Round Hole [Maxifig Hand] Yellow Part 3614a ×4

Wheels and Tyres 12 pieces

  • Brick Special 2 x 4 with Wheel Holder Old, Clear Bottom, Red Inside Black Part 7049bc01 ×4
  • Tyre Smooth Old Style - Large Black Part 36 ×4
  • Wheel Spoked Large Red Part 35 ×4

Plates 5 pieces

  • Plate 6 x 16 Black Part 3027 Element 302726 ×1
  • Plate 6 x 8 Black Part 3036 Element 303676 or 303626 ×1
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate 6 x 10 Red Part 3033 Element 6509008 or 6249097 ×1
  • Plate 6 x 8 Red Part 3036 Element 303671 or 303621 ×1

Minifig Headwear 3 pieces

  • Homemaker Hair Long Black Part upn0223 ×1
  • Homemaker Hair Short Brown Part upn0225 ×1
  • Homemaker Hat, Police Style Red Part upn0247 ×1

Bricks Round and Cones 2 pieces

  • Brick Round 1 x 1 Solid Stud Yellow Part 3062a ×2

Minifig Heads 2 pieces

  • Homemaker Figure Head with Eyes, Eyebrows and Smile Print Yellow Part 685pr0004 ×1
  • Homemaker Figure Head with Face Print Yellow Part 685pr0001 ×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.