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.

Hydro Racer / Swamp Boat

Checking

8246 Hydro Racer / Swamp Boat

46 pieces in 25 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 Connectors 9 pieces

  • Technic Axle Connector with Axle Hole Black Part 32039 Element 4107081 or 3203926 ×2
  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×2
  • Technic Axle and Pin Connector Angled #6 - 90° Black Part 32014 Element 6268905 or 4107767 ×2
  • Technic Axle and Pin Connector Perpendicular 3L with Pin Hole Light Gray Part 32068 Element 4114669 ×1
  • Technic Axle and Pin Connector Angled #1 Yellow Part 32013 Element 6329889 or 4107066 ×2

Technic Axles 7 pieces

  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×1
  • Technic Axle 4 Black Part 3705 Element 370526 ×3
  • Technic Axle 5 Black Part 32073 Element 4114740 ×3

Technic Beams 6 pieces

  • Technic Beam 1 x 4 Thin with Stud Connector Black Part 2825 Element 6331570 or 4107136 ×2
  • Technic Beam 1 x 6 Thin Black Part 32063 Element 6163980 or 4114634 ×2
  • Technic Beam Triangle Thin [Type I] Yellow Part 2905 Element 4296140 or 4251461 ×2

Technic Pins 6 pieces

  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×3
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×2
  • Technic Pin Double with Axle Hole Yellow Part 32138 Element 4130596 or 4119438 ×1

Tubes and Hoses 6 pieces

  • Hose, Ribbed 7mm D. 13L / 10.4cm Black Part 78c13 Element 4189289 or 4111943 ×1
  • Hose, Ribbed 7mm D. 3L / 2.4cm Black Part 78c03 Element 6439887 or 6357746 ×2
  • Hose Rigid 3mm D. 12L / 9.6cm Yellow Part 75c12 Element 4195781 ×1
  • Hose Rigid 3mm D. 8L / 6.4cm Yellow Part 75c08 Element 6623851 or 4116945 ×2

Technic Bushes 3 pieces

  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Gray Part 32123a 1 spare in the box ×3

Wheels and Tyres 3 pieces

  • Wheel with Split Axle hole Black Part 3482 Element 4279396 or 4199226 ×3

Technic Gears 2 pieces

  • Technic Gear 12 Tooth Bevel Light Gray Part 6589 Element 658902 ×2

String, Bands and Reels 1 piece

  • Rubber Belt Small [15mm ID] [Round Cross Section] White Part 85543 Element 6699001 or 4580665 2 spares in the box ×1

Technic Bricks 1 piece

  • Technic Brick 1 x 2 [2 Pin Holes] Light Gray Part 32000 Element 3200002 ×1

Technic Special 1 piece

  • Technic Plate Rotor 3 Blade with Smooth Ends and 6 Studs (Propeller) Red Part 32125 Element 4118892 ×1

Tiles 1 piece

  • Tile 1 x 2 with Blue Screen, Red and Silver Panel Print Black Part 3069bpr0040 Element 82058 ×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.