BlockTalk Find Your Set

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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.

Booster Beast

Checking

8137 Booster Beast

70 pieces in 35 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.

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Piece checklist

Technic Bushes 10 pieces

  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 ×8
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 ×2

Plates 9 pieces

  • Plate 6 x 6 Black Part 3958 Element 395826 ×1
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×1
  • Plate 2 x 8 Dark Bluish Gray Part 3034 Element 4210997 ×2
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×1
  • Plate 1 x 2 Orange Part 3023 Element 4177932 or 4163009 ×2
  • Plate 1 x 6 Orange Part 3666 Element 4173332 or 4122466 ×2

Wheels and Tyres 8 pieces

  • Tyre 37 x 22 ZR Black Part 55978 Element 6518542 or 4499234 ×4
  • Wheel 30.4 x 20 without Pinholes, with Reinforced Rim Black Part 56145 Element 4299389 or 4284946 ×4

Technic Pins 6 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×4
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 ×2

Technic Axles 5 pieces

  • Technic Axle 12 Black Part 3708 Element 370826 ×2
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×1
  • Technic Axle 4 Black Part 3705 Element 370526 ×1
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×1

Bricks Sloped 4 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 ×4

Technic Bricks 4 pieces

  • Technic Brick 1 x 8 [7 Pin Holes] Black Part 3702 Element 370226 ×2
  • Technic Brick 1 x 2 [2 Pin Holes] Dark Bluish Gray Part 32000 Element 4210762 ×2

Bricks 3 pieces

  • Brick 2 x 4 Black Part 3001 Element 300126 ×1
  • Brick 1 x 4 Dark Bluish Gray Part 3010 Element 4211103 ×2

Technic Beams 3 pieces

  • Technic Beam 1 x 9 Bent (7 - 3) Thick Black Part 32271 Element 6276835 or 4140327 ×1
  • Technic Beam 1 x 3 Thin Light Bluish Gray Part 6632 Element 6360043 or 4211566 ×2

Technic Connectors 3 pieces

  • Technic Axle and Pin Connector Angled #4 - 135° Black Part 32192 Element 6262897 or 4121610 ×2
  • Technic Axle Connector Ridged [with x Hole x Orientation] Dark Bluish Gray Part 6538b Element 6538199 or 4210672 ×1

Tiles 3 pieces

  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 ×1
  • Tile 1 x 2 with Groove Trans-Orange Part 3069b Element 6514225 or 6251306 ×2

Bricks Curved 2 pieces

  • Brick Curved 6 x 2 Dark Bluish Gray Part 44126 Element 4210873 ×2

Plates Special 2 pieces

  • Bracket 2 x 2 - 2 x 2 Black Part 3956 Element 6254808 or 6019217 ×2

Transportation - Land 2 pieces

  • Engine / Air Scoop 2 x 2 Light Bluish Gray Part 50943 Element 4259422 ×2

Transportation - Sea and Air 2 pieces

  • Engine Smooth Large [2 x 2 Thin Top Plate] Light Bluish Gray Part 4868b Element 4263610 ×2

Bricks Wedged 1 piece

  • Brick Wedged, Curved Triple 4 x 6 x 2/3 with 4 Studs Dark Bluish Gray Part 52031 Element 6592401 or 4294181 ×1

Mechanical 1 piece

  • Pullback Motor 9 x 4 x 2 2/3 Dark Bluish Gray Part 47715 Element 4221427 ×1

Stickers 1 piece

  • Sticker Sheet for Set 8137-1 [No Color/Any Color] Part 57852 Element 4496154 ×1

Tiles Special 1 piece

  • Tile Special 1 x 2 Grille with Bottom Groove Trans-Red Part 2412b Element 6250158 or 4190187 ×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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