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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.

Power Boat Transporter

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4643 Power Boat Transporter

247 pieces in 116 part and color combinations, plus 2 minifigures.

LEGO counts 254 pieces. This inventory comes from a separate parts catalog and lists 255, including the 8 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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Plates 37 pieces

  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×1
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×7
  • Plate 2 x 16 Dark Bluish Gray Part 4282 Element 4210796 ×1
  • Plate 2 x 8 Dark Bluish Gray Part 3034 Element 4210997 ×1
  • Plate 4 x 6 Dark Bluish Gray Part 3032 Element 4211115 or 3032199 ×2
  • Plate 6 x 8 Dark Bluish Gray Part 3036 Element 4210794 ×1
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×2
  • Plate 1 x 2 Red Part 3023 Element 302321 ×2
  • Plate 1 x 3 Red Part 3623 Element 362321 ×2
  • Plate 1 x 6 Red Part 3666 Element 366621 ×2
  • Plate 2 x 3 Red Part 3021 Element 302121 ×1
  • Plate 1 x 1 Trans-Orange Part 3024 Element 6513961 or 6252040 ×2
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×3
  • Plate 1 x 6 Yellow Part 3666 Element 366624 ×3
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×1
  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×2
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×3
  • Plate 4 x 4 Yellow Part 3031 Element 4243817 or 303124 ×1

Tiles 31 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×2
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×1
  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 ×2
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×2
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 Also in Trans-Red ×4
  • Tile 1 x 3 Red Part 63864 Element 4533742 ×2
  • Tile 1 x 6 with Groove Red Part 6636 Element 4113858 ×1
  • Tile 1 x 2 with Groove Trans-Red Part 3069b Element 6514220 or 6251290 Also in Red ×4
  • Tile 1 x 1 with Groove Yellow Part 3070b Element 307024 1 spare in the box ×2
  • Tile 1 x 4 with Groove Yellow Part 2431 Element 243124 ×1
  • Tile 1 x 6 with Groove Yellow Part 6636 Element 6388488 or 663624 ×9
  • Tile 2 x 4 with Groove Yellow Part 87079 Element 6388490 or 4560181 ×1

Bricks Sloped 28 pieces

  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×2
  • Brick Sloped 18° 4 x 2 Dark Bluish Gray Part 30363 Element 4210637 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 1 spare in the box ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Dark Bluish Gray Part 85984 Element 4567887 ×2
  • Brick Sloped Inverted 45° 2 x 1 Dark Bluish Gray Part 3665 Element 4211096 ×4
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Red Part 61409 Element 4540382 or 4535102 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Red Part 54200 Element 5074621 or 4504379 1 spare in the box ×2
  • Brick Sloped 33° 3 x 6 No Inner Walls Trans-Brown Part 58181 Element 6274668 or 6230116 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Orange Part 54200 Element 6245265 or 4244369 1 spare in the box ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Yellow Part 54200 Element 6245272 or 4260942 1 spare in the box Also in Yellow ×2
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Yellow Part 61409 Element 4540384 or 4521167 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Yellow Part 54200 Element 4504381 or 4283095 1 spare in the box Also in Trans-Yellow ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Yellow Part 85984 Element 4550348 ×2
  • Brick Sloped 33° 3 x 1 Yellow Part 4286 Element 428624 ×2

Plates Special 25 pieces

  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 5mm] Black Part 88072 Element 6261348 or 4569733 ×2
  • Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes Black Part 92593 Element 4599499 ×2
  • Plate Special 1 x 4 with Wheels Holder Black Part 2926 Element 6338416 or 292626 ×4
  • Plate Special 2 x 2 with Wheel Holder Black Part 4488 Element 6092658 or 448826 ×2
  • Technic Plate 2 x 4 [3 Holes] Black Part 3709 Element 370926 ×4
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Dark Bluish Gray Part 3794b Element 4211119 ×2
  • Bracket 1 x 2 - 1 x 4 [Square Corners] Light Bluish Gray Part 2436 Element 4282740 or 4211358 ×4
  • Plate Special 1 x 4 with Bar Down Light Bluish Gray Part 30043 Element 6173095 or 4261605 ×1
  • Plate Special 4 x 6, Studs on 3 Edges Light Bluish Gray Part 6180 Element 4211838 ×1
  • Plate Special 1 x 2 with Door Rail Yellow Part 32028 Element 4141630 ×2
  • Plate Special 2 x 6 x 2/3 with 4 Studs on Side, 1 Support Wall on Bottom Yellow Part 87609 Element 4567996 ×1

Bricks 21 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×2
  • Brick 1 x 2 Black Part 3004 Element 300426 ×1
  • Brick 1 x 6 Black Part 3009 Element 300926 ×1
  • Brick 1 x 4 Dark Bluish Gray Part 3010 Element 4211103 ×1
  • Brick 2 x 4 Light Bluish Gray Part 3001 Element 4211385 ×1
  • Brick 1 x 1 Red Part 3005 Element 300521 ×2
  • Brick 1 x 12 Red Part 6112 Element 611221 ×2
  • Brick 1 x 6 Red Part 3009 Element 300921 ×2
  • Brick 1 x 3 Yellow Part 3622 Element 362224 ×2
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×5
  • Brick 1 x 6 Yellow Part 3009 Element 300924 ×1
  • Brick 2 x 3 Yellow Part 3002 Element 300224 ×1

Wheels and Tyres 20 pieces

  • Tyre 21 x 12 with Offset Tread Small Wide and Beveled Tread Edge Black Part 60700 Element 4514560 ×10
  • Wheel 11 x 12 with Hole Notched for Wheels Holder Pin Light Bluish Gray Part 6014b Element 4211764 ×10

Hinges, Arms and Turntables 10 pieces

  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Black Part 44301a Element 4183043 ×2
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Dark Bluish Gray Part 44302a Element 4210884 ×2
  • Hinge Plate 3 x 4 Locking Dual 2 Finger, 9 Teeth Dark Bluish Gray Part 44570 Element 4552248 or 4512209 ×1
  • Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 9 Teeth Light Bluish Gray Part 30553 Element 4222047 ×2
  • Hinge Plate 1 x 4 Locking Dual 1 Finger Light Bluish Gray Part 44568 Element 6276045 or 4211840 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger on Side, with Groove Yellow Part 44567a Element 4185617 ×2

Plates Round Curved and Dishes 10 pieces

  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 2 spares in the box ×8
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Red Part 4032a Element 403221 ×2

Panels 8 pieces

  • Panel 1 x 1 x 1 Corner Black Part 6231 Element 4106347 or 4101709 ×4
  • Panel 1 x 2 x 2 [Side Supports / Hollow Studs] Trans-Brown Part 87552 Element 6581810 or 6253217 ×2
  • Panel 1 x 2 x 3 - Solid Studs Trans-Brown Part 2362a ×2

Transportation - Land 8 pieces

  • Seat / Chair 2 x 2 with Center Sprue Mark Black Part 4079b Element 407926 ×2
  • Vehicle Base, Train 6 x 28 with Two 2 x 2 Openings and 3 Round Holes Each End Dark Bluish Gray Part 92339 Element 4594847 ×1
  • Wheel Arch, Mudguard 4 x 2 1/2 x 2 with 2 x 2 Plate Dark Bluish Gray Part 50745 Element 4260124 ×2
  • Steering Stand 1 x 2 with Black Steering Wheel Light Bluish Gray Part 3829c01 Element 4226995 ×2
  • Seat / Chair 2 x 2 with Center Sprue Mark Red Part 4079b Element 407921 ×1

Bricks Special 6 pieces

  • Brick Special 1 x 4 with 4 Studs on One Side Black Part 30414 Element 4162443 ×2
  • Brick Special 2 x 4, with 2 x 2 Brick with Top Pin and 1 x 2 Side Plates Light Bluish Gray Part 30592 Element 6301425 or 6278504 ×2
  • Brick Special 1 x 1 with Handle Yellow Part 2921 Element 6584236 or 4262786 ×2

Plates Wedged 6 pieces

  • Wedge Plate 3 x 2 Left Dark Bluish Gray Part 43723 Element 4210872 ×1
  • Wedge Plate 3 x 2 Right Dark Bluish Gray Part 43722 Element 4210869 ×1
  • Wedge Plate 3 x 6 Cut Corners Dark Bluish Gray Part 2419 Element 4210984 ×2
  • Wedge Plate 4 x 2 Left Red Part 41770 Element 4161329 ×1
  • Wedge Plate 4 x 2 Right Red Part 41769 Element 4160866 ×1

Tiles Special 6 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Red Part 2412b Element 241221 ×3
  • Tile Special 1 x 2 with Handle Yellow Part 2432 Element 243224 ×1

Bricks Curved 5 pieces

  • Brick Curved 6 x 1 Black Part 42022 Element 4160393 ×2
  • Brick Curved 10 x 1 [Asymmetric Inside Ridges] Yellow Part 85970 Element 4551620 ×2
  • Brick Curved 2 x 4 x 2/3 No Studs, with Bottom Tubes Yellow Part 88930 Element 4597902 or 4549089 ×1

Bricks Wedged 4 pieces

  • Brick Wedged, Curved Triple 4 x 6 x 2/3 with 4 Studs Red Part 52031 Element 4259903 ×1
  • Brick Wedged 2 x 2 Facet Yellow Part 87620 Element 6437957 or 4581524 ×2
  • Brick Wedged, Curved Triple 4 x 6 x 2/3 with 4 Studs Yellow Part 52031 Element 4263142 ×1

Bars, Ladders and Fences 2 pieces

  • Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye Trans-Orange Part 58176 Element 6507868 or 6171764 ×2

Minifig Headwear 2 pieces

  • Helmet, Standard Red Part 2446 Element 6020371 or 4610060 ×2

Minifig Headwear Accessories 2 pieces

  • Headwear Accessory Visor For Standard Helmet Trans-Brown Part 2447 Element 6244785 or 6139158 1 spare in the box ×2

Minifig Neckwear 2 pieces

  • Minifig Neckwear Life Jacket [Old Style] Yellow Part 2610 Element 4260843 or 4106912 ×2

Minifig Upper Body 2 pieces

  • Arm Mechanical with 2 Clips [Battle Droid] Light Bluish Gray Part 30377 Element 6319333 or 4211658 1 spare in the box ×2

Technic Axles 2 pieces

  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×2

Technic Bricks 2 pieces

  • Technic Brick 1 x 4 [3 Pin Holes] Yellow Part 3701 Element 370124 ×2

Technic Pins 2 pieces

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×2

Transportation - Sea and Air 2 pieces

  • Boat Deck 8 x 28 x 3 White Part 92711 Element 4609733 ×1
  • Boat Hull 8 x 28 x 3 White Part 92710 Element 4609732 ×1

Minifig Accessories 1 piece

  • Equipment Cup / Mug [Plain] Red Part 3899 Element 389921 ×1

Stickers 1 piece

  • Sticker Sheet for Set 4643-1 [No Color/Any Color] Part 93645 Element 4611638 ×1

Technic Beams 1 piece

  • Technic Beam 1 x 4 Thin Light Bluish Gray Part 32449 Element 6370947 or 6074036 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 1 x 6 x 3 Trans-Brown Part 64453 Element 6514290 or 6254637 ×1

Minifigures 2 figures

  • Racer, Blue Jumpsuit with Octan Logo, Red Cap, Open Mouth Minifigure, checked as a whole figure ×1
  • Racer, Blue Jumpsuit with Octan Logo, Red Cap, Stubble 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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