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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.

Derby Trotter

Checking

6355 Derby Trotter

138 pieces in 55 part and color combinations, plus 1 minifigure.

LEGO counts 140 pieces. This inventory comes from a separate parts catalog and lists 142, including the 4 parts inside the minifigures; 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.

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Piece checklist

White 78 pieces

  • Bar 1 x 8 x 2 White Part 2486 Element 248601 ×3
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×16
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×17
  • Brick 1 x 3 White Part 3622 Element 6550143 or 362201 ×9
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×4
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×4
  • Brick 1 x 8 White Part 3008 Element 6550134 or 300801 ×2
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×2
  • Brick Arch 1 x 5 x 4 [Continuous Bow] White Part 2339 Element 4528356 or 4187360 ×1
  • Brick Arch 1 x 6 x 2 - Thick Top with Reinforced Underside White Part 3307 Element 330701 ×1
  • Brick Special 1 x 1 x 2 with Shutter Holder White Part 3581 Element 358101 ×2
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 ×5
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×3
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×3
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×3
  • Plate 1 x 8 White Part 3460 Element 6550141 or 346001 ×2
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×1

Red 14 pieces

  • Bar 1 x 8 x 2 Red Part 2486 Element 4609296 or 248621 ×1
  • Brick Sloped 45° 2 x 8 Red Part 4445 Element 4550322 or 4239184 ×7
  • Plate 1 x 2 Red Part 3023 Element 302321 ×1
  • Plate 1 x 8 Red Part 3460 Element 346021 ×1
  • Plate 2 x 8 Red Part 3034 Element 303421 ×1
  • Plate 4 x 8 Red Part 3035 Element 303521 ×1
  • Window 1 x 2 x 3 Pane Red Part 3854 Element 4175391 or 385421 ×2

Black 10 pieces

  • Animal / Creature Accessory, Saddle [One Clip] Black Part 4491a ×1
  • Equipment Whip [aka Plant Vine] Black Part 2488 Element 6268824 or 4161403 ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Black Part 4081b Element 6281993 or 4632571 ×2
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Black Part 2444 Element 244426 ×2
  • Technic Wedge Belt Wheel Tire Black Part 2815 Element 6028041 or 281526 ×2

Yellow 10 pieces

  • Animal / Creature Accessory, Horse Hitching, 1 x 2 Plate and 2 x 2 Plate [Studded] Yellow Part 2397 Element 239724 ×1
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×3
  • Plant, Flower - Small Yellow Part 3742 1 spare in the box ×3
  • Plate 1 x 1 Yellow Part 3024 Element 302424 ×2
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×1

Light Gray 9 pieces

  • Baseplate 16 x 16 Light Gray Part 3867 Element 4217335 or 4206787 ×1
  • Brick Round 2 x 2 with Axle Hole Light Gray Part 3941 Element 614302 or 394102 ×1
  • Construction Vehicle Bucket 2 x 3 Curved Bottom, Hollow, with Hinge 2 Fingers Light Gray Part 4626 Element 4161147 or 462602 ×1
  • Dish 2 x 2 Inverted [Radar] Light Gray Part 4740 Element 474002 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thin U Clip] Light Gray Part 4085b ×2
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] Light Gray Part 4623 Element 462302 ×1
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×2

Brown 4 pieces

  • Animal, Horse, Movable Head, Black Eyes, Red Bridle, Black Mane Print Brown Part 4493c01pr0001 Element 74323 ×1
  • Brick 1 x 2 Brown Part 3004 Element 300425 ×1
  • Equipment Brush / Push Broom Brown Part 3836 Element 383625 ×1
  • Tile 1 x 2 with Groove Brown Part 3069b Element 306925 ×1

Trans-Yellow 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 ×4

Blue 3 pieces

  • Door 1 x 4 x 6 Blue Part 3644 Element 4163375 ×2
  • Window 1 x 4 x 3 Blue Part 3853 Element 385323 ×1

Green 3 pieces

  • Baseplate 16 x 16 Green Part 3867 Element 4217115 or 609828 ×1
  • Plant, Flower Stem Green Part 3741 Element 6277589 or 374128 ×1
  • Plant, Pine Tree - Small 2 x 2 x 4 Green Part 2435 Element 6268823 or 243578 ×1

Trans-Clear 2 pieces

  • Technic Wedge Belt Wheel [aka Pulley] Trans-Clear Part 4185 Element 6062324 or 4101678 ×2

Dark Gray 1 piece

  • Equipment Shovel [Rounded Handle End] Dark Gray Part 3837 Element 383727 ×1

Minifigures 1 figure

  • Man, Red Torso, Blue Legs, Black Hard Hat 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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