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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.

NBA Slam Dunk

Checking

3427 NBA Slam Dunk

52 pieces in 32 part and color combinations, plus 1 minifigure.

The piece count includes the 3 parts inside the set's minifigures, which this inventory lists separately. 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

Plates 13 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate 1 x 4 Black Part 3710 Element 371026 ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate 2 x 10 Dark Gray Part 3832 Element 4141769 or 383227 ×2
  • Plate 2 x 4 Dark Gray Part 3020 Element 4112232 or 302027 ×2
  • Plate 6 x 6 Dark Gray Part 3958 Element 4121924 ×1
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×5

Minifig Accessories 6 pieces

  • Sports Skateboard with Trolley Wheel Holders Blue Part 42511 Element 4569105 or 4172695 ×1
  • Sports Basketball with Black Lines Print Orange Part 43702pr0001 Element 4186831 ×3
  • Sports Hoop with 2 Studs and Axle Orange Part 43373 Element 4295310 or 4174045 ×1
  • Sports Basketball Net White Part 43374 Element 4295309 or 4174044 ×1

Technic Axles 6 pieces

  • Technic Axle 10 Black Part 3737 Element 373726 ×1
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×3
  • Technic Axle 3 Light Gray Part 4519 Element 4186007 ×1
  • Technic Axle 12 Red Part 3708 Element 6147702 or 4125190 ×1

Technic Bricks 6 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×1
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Red Part 32064a Element 6196217 or 4513987 ×5

Bricks 5 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×4
  • Brick 1 x 6 x 5 with NBA Logo and Basketball Backboard Print Red Part 3754pr0005 Element 4188912 ×1

Technic Connectors 4 pieces

  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×2
  • Technic Axle and Pin Connector Angled #2 - 180° Black Part 32034 Element 6271869 or 4107783 ×1
  • Technic Axle and Pin Connector Angled #6 - 90° Red Part 32014 Element 6268922 or 4189131 ×1

Bricks Special 3 pieces

  • Brick Special 1 x 2 with Pin Red Part 2458 Element 245821 ×1
  • Brick Special 2 x 2 with Pin and Axle Hole Red Part 6232 Element 6347696 or 623221 ×2

Hinges, Arms and Turntables 2 pieces

  • Hinge Cylinder 1 x 2 Locking with 1 Finger and Axle Hole On Ends Dark Gray Part 30552 Element 4142724 ×1
  • Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 9 Teeth Dark Gray Part 30553 Element 4142725 ×1

Wheels and Tyres 2 pieces

  • Wheel Skateboard / Trolley Yellow Part 2496 Element 4173371 ×2

Bars, Ladders and Fences 1 piece

  • Picket Fence 1 x 4 x 2 Black Part 33303 Element 4186636 ×1

Containers 1 piece

  • Trash Can with 2 Cover Holders Dark Gray Part 2439 Element 243927 ×1

Plates Round Curved and Dishes 1 piece

  • Dish 2 x 2 Inverted [Radar] Light Gray Part 4740 Element 474002 ×1

Plates Special 1 piece

  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Black Part 3839b Element 383926 ×1

Technic Pins 1 piece

  • Technic Axle Towball Light Gray Part 2736 Element 273602 ×1

Minifigures 1 figure

  • Basketball Player, Violet Torso, Violet Legs 3 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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