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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.

Road and Rail Repair

Checking

4525 Road and Rail Repair

81 pieces in 42 part and color combinations, plus 1 minifigure.

The 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

Hinges, Arms and Turntables 18 pieces

  • Hinge Bar 2.5L with 2 and 3 Fingers on Ends (Pantograph Shoe Holder) Black Part 2923 Element 292326 ×4
  • Hinge Plate 1 x 2 with 3 Fingers On Side Black Part 2452 Element 245226 ×1
  • Turntable 2 x 2 Plate - Top Light Gray Part 3679 Element 367952 or 367902 ×1
  • Hinge Brick 1 x 2 Base Red Part 3937 Element 393721 ×2
  • Hinge Brick 2 x 2 Top Plate Thin Red Part 6134 Element 613421 ×2
  • Hinge Plate 1 x 2 with 2 Fingers and Hollow Studs Red Part 4276b Element 4238277 or 427621 ×4
  • Turntable 2 x 2 Plate, Base Red Part 3680 Element 368021 ×1
  • Hinge Plate 1 x 2 with 3 Fingers [Hollow Studs] Yellow Part 4275b Element 4256391 or 4225510 ×1
  • Hinge Plate 1 x 6 with 2 and 3 Fingers On Ends Yellow Part 4504 Element 4280161 or 4225511 ×1
  • Hinge Tile 1 x 2 1/2 with 2 Fingers on Top Yellow Part 4531 Element 4280162 or 4225512 ×1

Wheels and Tyres 12 pieces

  • Train Wheel Small Black Part 2927 Element 4227798 or 4163080 ×4
  • Tyre 21 x 12 with Offset Tread Small Wide Black Part 6015 Element 601526 ×4
  • Wheel 11 x 12 with Hole Round for Wheels Holder Pin Light Gray Part 6014a ×4

Plates 10 pieces

  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate 2 x 8 Red Part 3034 Element 303421 ×1
  • Plate 1 x 3 Yellow Part 3623 Element 362324 ×2
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×2
  • Plate 2 x 2 Corner Yellow Part 2420 Element 242074 or 242024 ×2
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×1
  • Plate 4 x 6 Yellow Part 3032 Element 303224 ×1

Tiles 7 pieces

  • Tile 2 x 2 with Groove Red Part 3068b Element 306821 ×4
  • Tile 1 x 1 with Groove Yellow Part 3070b Element 307024 1 spare in the box ×2
  • Tile 1 x 4 with Groove Yellow Part 2431 Element 243124 ×1

Plates Special 6 pieces

  • Plate Special 1 x 4 with Wheels Holder Light Gray Part 2926 Element 292602 ×2
  • Plate Special 3 x 2 with Rounded End, Hole Red Part 3176 Element 4188189 or 317621 ×2
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Yellow Part 4081b Element 6281992 or 4632569 ×2

Tiles Special 5 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×3
  • Tile Special 1 x 2 with Handle Yellow Part 2432 Element 243224 ×2

Bars, Ladders and Fences 4 pieces

  • Bar 1 x 4 x 2 with Studs Yellow Part 4083 Element 408324 ×1
  • Lever Small Base with Black Lever Yellow Part 298c02 Element 74156 1 spare in the box ×3

Bricks Sloped 4 pieces

  • Brick Sloped 33° 3 x 1 Yellow Part 4286 Element 428624 ×2
  • Brick Sloped 45° 2 x 3 Yellow Part 3038 Element 4225502 or 4190423 ×2

Plates Round Curved and Dishes 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×2

Transportation - Land 3 pieces

  • Construction Vehicle Bucket 2 x 3 Curved Bottom, Hollow, with Hinge 2 Fingers Black Part 4626 Element 462626 ×1
  • Wheel Holder, Sprung 2 x 2 Red Part 2484c01 Element 74321 ×2

Magnets and Holders 2 pieces

  • Magnet Cylindrical Black Part 73092 Element 73092 ×1
  • Train Coupling New Black Part 2920 Element 4299239 or 292076 ×1

Technic Bricks 2 pieces

  • Technic Brick 1 x 1 with Pin Hole Yellow Part 6541 Element 654124 ×2

Technic Pins 2 pieces

  • Technic Pin 1/2 without Friction Ridges Light Gray Part 4274 Element 427402 1 spare in the box ×2

Bricks 1 piece

  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×1

Stickers 1 piece

  • Sticker Sheet for Sets 4525-1, 4544-1 [No Color/Any Color] Part 168265 Element 168265 ×1

Minifigures 1 figure

  • Train Worker - Red Vest, Blue Legs, White Helmet, Plain Face 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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