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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.

Tractor

Checking

378 Tractor

36 pieces in 25 part and color combinations.

LEGO counts 34 pieces. This inventory comes from a separate parts catalog and lists 36; 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

Black 13 pieces

  • Black Vehicle, Tractor Chassis Steering Arm Black Part 871 ×1
  • Brick 1 x 2 Black Part 3004 Element 300426 ×1
  • Brick Round 1 x 1 Solid Stud Black Part 3062a ×1
  • Brick Special 2 x 4 with Wheel Holder Old, Clear Bottom, Red Inside Black Part 7049bc01 ×2
  • Brick Special 2 x 4 with Wheels Holder for Car Steering Gear Axle Black Part 800 ×1
  • Tile 1 x 2 without Groove Black Part 3069a ×1
  • Tyre Smooth Old Style - Large Black Part 36 ×2
  • Tyre Smooth Old Style - Small Black Part 132a ×4

Yellow 12 pieces

  • Brick 1 x 2 with LEGO Logo Open O White with Black Outline Print Yellow Part 3004pr9974 ×1
  • Brick 2 x 4 without Cross Supports Yellow Part 3001a ×1
  • Construction Vehicle Bucket Smooth 3 x 5 x 1 & 1/3 Yellow Part 3433 Element 343324 ×1
  • Panel, Trapezoid, Tipper End Flat with Pins, 1 x 2 Anti-studs Yellow Part 3145 ×1
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×2
  • Plate 2 x 8 Yellow Part 3034 Element 303424 ×1
  • Plate 4 x 8 Yellow Part 3035 Element 303524 ×2
  • Plate Special 1 x 4 with Towball Socket, Long, 4 Slots Yellow Part 3183b ×1
  • Tipper End Sloped Yellow Part 3436 Element 343624 ×1
  • Vehicle Base, Tractor Chassis [Complete Assembly] Yellow Part 827 ×1

Red 9 pieces

  • Construction Vehicle Bucket Arm, Large Red Part 828 ×1
  • Hinge Plate 2 x 5 with Large Hole [Complete Assembly] Red Part 3149bc01 Element 4188477 or 4106942 ×1
  • Vehicle Base, Trailer, 4 x 13 Swan Neck Red Part upn0125 ×1
  • Wheel Old with 12 Studs Red Part 715 ×2
  • Wheel Old with 4 Studs Red Part 7039 Element 7039 ×4

Blue 2 pieces

  • Brick 2 x 2 without Inside Ridges Blue Part 3003a ×1
  • Brick Special 1 x 2 with Digger Bucket Arm Holder Blue Part 3317 ×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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