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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.

Beta Buzzer

Checking

6817 Beta Buzzer

28 pieces in 22 part and color combinations, plus 1 minifigure.

LEGO counts 32 pieces. This inventory comes from a separate parts catalog and lists 33, including the 5 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

Hinges, Arms and Turntables 6 pieces

  • Arm Holder Brick 1 x 2 with 2 Horizontal Fingers Dark Gray Part 30014 Element 4114442 ×2
  • Arm Piece 90° Turn [2 / 3 Fingers] Dark Gray Part 412 Element 4114443 ×2
  • Wing Insectoid Small with Arm Hinge and Circuitry Print Left (Print on Top, Tip at Left, Logo at Back Edge) Trans-Dark Blue Part 30231pr0002 Element 4114648 ×1
  • Wing Insectoid Small with Arm Hinge and Circuitry Print Right (Print on Top, Tip at Right, Logo at Back Edge) Trans-Dark Blue Part 30231pr0001 Element 4114647 ×1

Bricks 3 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×1
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×2

Bricks Round and Cones 3 pieces

  • Brick Round 1 x 1 Open Stud Trans-Dark Blue Part 3062b Element 6514233 or 6238044 ×1
  • Cone 1 x 1 [No Top Groove] Trans-Neon Green Part 4589 Element 618849 or 458949 ×2

Bricks Sloped 2 pieces

  • Brick Sloped 45° 2 x 2 Dark Gray Part 3039 Element 4109984 ×1
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Dark Gray Part 3747a Element 4112039 ×1

Plates 2 pieces

  • Plate 1 x 4 Black Part 3710 Element 371026 ×2

Plates Wedged 2 pieces

  • Wedge Plate 7 x 6 Boat Bow without Stud Notches Black Part 2625 ×1
  • Wedge Plate 3 x 6 Cut Corners Blue Part 2419 Element 241923 ×1

Transportation - Sea and Air 2 pieces

  • Engine - Smooth, Small 1 x 2 Side Plate [With Axle Holders] Black Part 3475b Element 347526 ×2

Bars, Ladders and Fences 1 piece

  • Antenna 1 x 4 with Rounded Top Trans-Neon Green Part 3957a ×1

Bricks Wedged 1 piece

  • Brick Wedged 3 x 4 [No Stud Notches] Dark Gray Part 2399 Element 4112038 or 239927 ×1

Minifig Accessories 1 piece

  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Black Part 4349 Element 434926 ×1

Plates Round Curved and Dishes 1 piece

  • Dish 2 x 2 Inverted [Radar] Trans-Dark Blue Part 4740 Element 6580383 or 6398233 ×1

Plates Special 1 piece

  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Blue Part 3794a ×1

Rock 1 piece

  • Rock 2 x 2 Crystal 3 Point Trans-Neon Green Part 30213 Element 4114434 ×1

Stickers 1 piece

  • Sticker Sheet for Sets 2964-1, 2965-1, 5316-1, 6817-1, 6837-1, 6903-1, 6905-1, 6907-1, 6909-1, 6919-1, 6969-1, 6977-1 [No Color/Any Color] Part stickerupn0038 Element 4114700 ×1

Tiles 1 piece

  • Tile 1 x 2 with Mars Orbit Display Print Black Part 3069bpr0044 Element 4114640 ×1

Minifigures 1 figure

  • Lieutenant Maverick 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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