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.

Thunder

Checking

7157 Thunder

47 pieces in 28 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

Large Buildable Figures 18 pieces

  • Large Figure Skeletal, Limb, with 2 Ball Joints, and 3 Holes (Vahki) Black Part 47328 Element 4289376 or 4224135 ×2
  • Large Figure Skeletal, Limb, with 2 Ball Sockets Black Part 87839 Element 4566781 ×2
  • Large Figure Skeletal, Torso, Angular with Ball Joints Black Part 87794 Element 4578958 ×1
  • Large Figure Foot, Small with Axle Connector Flat Silver Part 87791 Element 4609591 or 4581800 ×2
  • Large Figure Limb Cover (Toa Inika) Flat Silver Part 53543 Element 4612762 ×1
  • Large Figure Limb Cover / Torso Cover (Toa Inika) Flat Silver Part 53544 Element 4612763 ×1
  • Large Figure Mask, Thunder Flat Silver Part 87824 Element 4609589 or 4579145 ×1
  • Large Figure Weapon Blade, Double Curved (Mata Nui Scarab Shield Half) Flat Silver Part 64299 Element 4612764 ×1
  • Large Figure Weapon Crush Claw Flat Silver Part 87828 Element 4609590 or 4579146 ×3
  • Large Figure Shield, Type 1 Light Bluish Gray Part 87820 Element 4614401 or 4583943 ×3
  • Large Figure Head Connector Block (Glatorian) Trans-Neon Orange Part 64262 Element 4543426 or 4540702 ×1

Technic Connectors 9 pieces

  • Technic Axle and Pin Connector 2 x 7 with Two Ball Joint Sockets, Squared Ends, Open Side Axle Holes Black Part 89651 Element 4598410 ×2
  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 ×3
  • Technic Axle Connector 2 x 3 with Ball Socket, Closed Sides, Squared Ends Dark Bluish Gray Part 60176 Element 4519225 ×2
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Light Bluish Gray Part 32184 Element 6276969 or 4211621 ×1
  • Technic Axle and Pin Connector Perpendicular Double Split Light Bluish Gray Part 41678 Element 4211889 ×1

Technic Pins 9 pieces

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×3
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×4
  • Technic Pin 3/4 Dark Bluish Gray Part 32002 Element 32002199 or 4211050 1 spare in the box ×2

Projectiles / Launchers 3 pieces

  • Launcher, Large Figure Weapon, Zamor Sphere Launcher, with Hole and Axle Hole Black Part 64275 Element 4581740 ×2
  • Projectile, Large Figure Weapon, Zamor Sphere / Ball with Marbled Trans-Bright Green Pattern Bright Green Part 54821pat0002 Element 4296080 ×1

Technic Axles 3 pieces

  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×1
  • Technic Axle 3 with Stud Dark Tan Part 6587 Element 6031821 or 6013821 ×1
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×1

Technic Beams Special 3 pieces

  • Technic Beam 1 x 2 with Ball Joint Straight, Smooth Ball Black Part 64276 Element 4560108 or 4537514 ×1
  • Technic Beam 1 x 2 with Ball Joint Angled Dark Bluish Gray Part 50923 Element 4503381 or 4289258 ×2

Stickers 1 piece

  • Sticker Sheet for Set 7157-1 [No Color/Any Color] Part 90066 Element 4582478 ×1

Technic Beams 1 piece

  • Technic Beam 1 x 3 Thick Dark Bluish Gray Part 32523 Element 32523199 or 4210751 ×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.