The Workshop Sheet 10 of 22

LEGO Missing Piece Checker

Enter a set number, mark each piece found or missing, and leave with a list of what is missing, the element IDs LEGO asks for and links to buy the parts. It is free and needs no account. Rule out the usual hiding places first.

Power

Checking

8514 Power

31 pieces in 23 part and color combinations.

LEGO counts 32 pieces. This inventory comes from a separate parts catalog and lists 31; 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 19 pieces

  • Rubber Band Large [Square Cross Section] Black Part 70158 ×1
  • Technic Arm 1 x 7 x 3 with Gear Ends Black Part 32311 Element 4140501 ×1
  • Technic Axle 10 Black Part 3737 Element 373726 ×1
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×3
  • Technic Axle 4 Black Part 3705 Element 370526 ×1
  • Technic Axle 5 Black Part 32073 Element 4114740 ×1
  • Technic Axle Connector 2 x 3 with Ball Socket, Open Sides Black Part 32174 Element 4119328 ×2
  • Technic Axle Connector Block 3 x 6 with 6 Axleholes Black Part 32307 Element 4236019 or 4140422 ×2
  • Technic Axle and Pin Connector Perpendicular 3L with Pin Hole Black Part 32068 Element 6273318 or 4114670 ×1
  • Technic Beam 1 x 5 Thin Black Part 32017 Element 6114935 or 4503423 ×1
  • Technic Gear 8 Tooth Black Part 3647 Element 4120181 ×1
  • Technic Pin Connector Block 3 x 3 x 1 Black Part 32172 Element 4119317 ×2
  • Technic Wheel Holder 7 x 3 Black Part 32306 Element 4140415 ×1
  • Technic Worm Gear Black Part 4716 Element 6037533 or 471626 ×1

Yellow 6 pieces

  • Large Figure Skeletal, Limb, Angular, 2 x 7 with 2 Ball Joints Yellow Part 32173 Element 4528082 or 4193775 ×2
  • Packaging Lid, Canister Top, RoboRider Yellow Part upn0324 ×1
  • Technic Axle Connector Ridged [with x Hole x Orientation] Yellow Part 6538b Element 4140507 ×1
  • Technic Block 3 x 5 x 1 2/3 with RoboRider Power Print Yellow Part 32310pr0003 Element 4141015 ×1
  • Technic Pin Connector Block 7 x 3 Yellow Part 32305 Element 4142104 or 4140498 ×1

Light Gray 4 pieces

  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×1
  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 ×1
  • Technic Pin 1/2 without Friction Ridges Light Gray Part 4274 Element 427402 ×2

Trans-Neon Orange 2 pieces

  • Cone 1 x 1 [No Top Groove] Trans-Neon Orange Part 4589 Element 4529918 or 618847 ×2

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.