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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.

Water Park

Checking

41720 Water Park

360 pieces in 176 part and color combinations, plus 3 minifigures.

The official piece count includes the 13 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

Bricks 51 pieces

  • Brick 1 x 1 Dark Pink Part 3005 Element 4492224 or 4245297 ×2
  • Brick 1 x 2 Dark Pink Part 3004 Element 4621545 or 4245295 ×3
  • Brick 1 x 2 Lavender Part 3004 Element 6099352 or 6015118 ×1
  • Brick 1 x 4 Lavender Part 3010 Element 6097867 or 6097865 ×4
  • Brick 1 x 2 Lime Part 3004 Element 4613965 or 4164022 ×2
  • Brick 1 x 6 Lime Part 3009 Element 4537919 or 4271446 ×3
  • Brick 1 x 1 Medium Nougat Part 3005 Element 6057986 or 4569624 ×4
  • Brick 1 x 1 x 3 Medium Nougat Part 14716 Element 6378362 ×3
  • Brick 1 x 1 Orange Part 3005 Element 4173805 or 4119645 ×4
  • Brick 1 x 2 x 2 with Inside Stud Holder Orange Part 3245c Element 6078590 or 4545311 ×1
  • Brick 1 x 3 Orange Part 3622 Element 4118787 ×1
  • Brick 2 x 4 Orange Part 3001 Element 4153827 or 4119641 ×2
  • Brick 1 x 1 x 3 Tan Part 14716 Element 6057517 ×1
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×2
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×1
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×1
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×2
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×5
  • Brick 1 x 6 Yellow Part 3009 Element 300924 ×4
  • Brick 1 x 8 Yellow Part 3008 Element 300824 ×3
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×1
  • Brick 2 x 2 Corner Yellow Part 2357 Element 235774 or 235724 ×1

Plates 39 pieces

  • Plate 2 x 6 Dark Azure Part 3795 Element 4640891 ×1
  • Plate 2 x 8 Dark Azure Part 3034 Element 6216890 ×1
  • Plate 1 x 2 Dark Pink Part 3023 Element 6057387 or 4245302 ×1
  • Plate 1 x 6 Lavender Part 3666 Element 6204071 ×1
  • Plate 1 x 2 Lime Part 3023 Element 4164037 or 4122439 ×10
  • Plate 2 x 6 Lime Part 3795 Element 4621548 or 4563344 ×2
  • Plate 6 x 8 Lime Part 3036 Element 6100914 or 4160082 ×1
  • Plate 2 x 2 Medium Azure Part 3022 Element 6603309 or 4625032 ×1
  • Plate 2 x 3 Medium Azure Part 3021 Element 6604733 or 6013828 ×2
  • Plate 8 x 16 Medium Azure Part 92438 Element 6022010 ×2
  • Plate 1 x 1 Orange Part 3024 Element 4524929 or 4203454 ×1
  • Plate 1 x 3 Orange Part 3623 Element 6147047 or 4513281 ×2
  • Plate 1 x 6 Orange Part 3666 Element 4173332 or 4122466 ×1
  • Plate 2 x 4 Orange Part 3020 Element 4158355 or 4122468 ×2
  • Plate 2 x 12 Tan Part 2445 Element 6093864 or 4526771 ×1
  • Plate 4 x 10 Tan Part 3030 Element 6037834 or 4609328 ×1
  • Plate 4 x 6 Tan Part 3032 Element 4114001 ×2
  • Plate 8 x 8 Tan Part 41539 Element 4624223 or 4502811 ×1
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×2
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×4

Tiles 35 pieces

  • Tile 2 x 6 Dark Azure Part 69729 Element 6337197 ×2
  • Tile 1 x 1 with Groove Lavender Part 3070b Element 6211403 ×3
  • Tile 1 x 2 with Groove Lavender Part 3069b Element 6345796 or 6112962 ×10
  • Tile 1 x 8 with Groove Lavender Part 4162 Element 6304891 ×5
  • Tile 1 x 4 with Groove Lime Part 2431 Element 4164021 ×1
  • Tile 1 x 2 with Groove Medium Azure Part 3069b Element 6603315 or 4649741 ×1
  • Tile 1 x 4 with Groove Medium Azure Part 2431 Element 4624705 ×1
  • Tile 1 x 8 with Groove Medium Azure Part 4162 Element 6078339 ×1
  • Tile 1 x 1 with Groove Orange Part 3070b Element 4558595 or 4277770 ×1
  • Tile 1 x 4 with Groove Orange Part 2431 Element 4160593 ×2
  • Tile 2 x 3 Orange Part 26603 Element 6293710 ×1
  • Tile 2 x 2 with Groove White Part 3068b Element 6548263 or 306801 ×3
  • Tile 2 x 4 with Groove White Part 87079 Element 6548271 or 4560178 ×2
  • Tile 1 x 6 with Groove Yellow Part 6636 Element 6388488 or 663624 ×1
  • Tile 2 x 4 with Groove Yellow Part 87079 Element 6388490 or 4560181 ×1

Bricks Curved 28 pieces

  • Brick Curved Inverted 2 x 2 x 2/3 Bright Light Yellow Part 32803 Element 6585071 or 6296511 ×1
  • Brick Arch 1 x 6 x 2 Curved Top Dark Pink Part 6183 Element 6383174 or 6221720 ×1
  • Brick Curved 1 x 3 x 2 Dark Pink Part 33243 Element 6225620 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Dark Pink Part 11477 Element 6132918 ×1
  • Brick Arch 1 x 8 x 2 Raised Lavender Part 16577 Element 6361080 ×2
  • Brick Curved 2 x 2 x 2/3 Lime Part 15068 Element 6138661 ×1
  • Brick Curved 2 x 4 x 2/3 No Studs, with Bottom Tubes Lime Part 88930 Element 6075049 or 4597561 ×2
  • Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] Lime Part 11153 Element 6578745 or 6033782 ×2
  • Brick Curved 2 x 2 x 2/3 Medium Azure Part 15068 Element 6119126 ×1
  • Brick Arch 1 x 6 x 2 - Thin Top without Reinforced Underside [New Version] Orange Part 15254 Element 6337195 ×5
  • Brick Curved 1 x 2 x 1 No Studs Orange Part 37352 Element 6385785 ×1
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Orange Part 11477 Element 6055069 ×2
  • Brick Curved 1 x 3 x 2 Inverted [Inside Bow] Yellow Part 18653 Element 6297316 or 6173894 ×2
  • Brick Curved 2 x 2 x 2/3 Yellow Part 15068 Element 6079007 ×3
  • Brick Curved 3 x 2 No Studs Yellow Part 24309 Element 6198024 ×2

Plates Round Curved and Dishes 26 pieces

  • Dish 4 x 4 Inverted [Radar] Bright Light Orange Part 3960 Element 6003002 ×1
  • Plate Round Corner 3 x 3 Lavender Part 30357 Element 6325970 ×2
  • Plate Round Corner 3 x 3 with 2 x 2 Round Cutout Lavender Part 68568 Element 6636410 or 6381957 ×3
  • Plate Round Corners 2 x 6 Double Lavender Part 18980 Element 6204060 ×1
  • Plate Round 1 x 1 with Open Stud Lime Part 85861 Element 6190251 ×8
  • Plate Round Half 3 x 6 with 1 x 2 Cutout Lime Part 18646 Element 6109765 ×1
  • Plate Special 1 x 2 Rounded with 2 Open Studs Lime Part 35480 Element 6264062 ×2
  • Plate 8 x 8 with Rounded End Medium Azure Part 41948 Element 6296050 ×1
  • Plate Round Corner 3 x 3 Medium Azure Part 30357 Element 6264993 ×3
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Orange Part 4032a Element 6030521 or 4164243 ×1
  • Plate Round 1 x 1 with Open Stud Trans-Light Blue Part 85861 Element 6510163 or 6283590 ×2
  • Dish 2 x 2 Inverted [Radar] White Part 4740 Element 6601845 or 474001 ×1

Bricks Special 24 pieces

  • Brick Special 1 x 1 with Stud on 1 Side Lime Part 87087 Element 6073026 or 4566860 ×1
  • Brick Special 1 x 2 Palisade [aka Log] Medium Nougat Part 30136 Element 4651231 ×11
  • Brick Special 1 x 2 with 2 Studs on 1 Side Orange Part 11211 Element 6223454 ×1
  • Slide Curved Left 90° Orange Part 28387 Element 6310293 ×1
  • Brick Special 1 x 1 x 3 with 2 Clips Vertical [Hollow Stud, Open O Clips] Tan Part 60583b Element 6320357 or 6055871 ×1
  • Brick Special 1 x 2 with Pin - Bottom Stud Holder Tan Part 44865 Element 6395748 ×3
  • Tube, Slide Straight Trans-Dark Pink Part 49736 Element 6547056 or 6380028 ×1
  • Tube, Slide Curved 45deg Trans-Light Blue Part 49737 Element 6306045 ×3
  • Brick Special 1 x 1 with Stud on 1 Side Yellow Part 87087 Element 4624985 ×1
  • Slide Curved 180° Yellow Part 11267 Element 6065886 ×1

Plants & Trees 21 pieces

  • Plant, Carrot Top Bright Green Part 33183 Element 4119479 ×1
  • Plant, Leaves 6 x 5 Swordleaf with Clip [Thick Open O Clip] Bright Green Part 10884 Element 6347460 or 6299808 ×2
  • Plant, Plate 1 x 1 Round with 3 Leaves Bright Green Part 32607 Element 6182261 ×6
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Dark Pink Part 24866 Element 6209679 ×5
  • Plant, Leaves, Round 2 x 2 x 2/3 with + Axle Hole and 4 Leaf Extensions Medium Azure Part 15469 Element 6058746 ×1
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Orange Part 24866 Element 6214234 ×3
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals White Part 24866 Element 6206149 ×3

Plates Special 20 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Green Part 15573 Element 6092586 ×2
  • Plate Special 1 x 1 Rounded with Handle Light Bluish Gray Part 26047 Element 6225246 ×1
  • Plate Special 1 x 2 with Clip Horizontal on Side Light Bluish Gray Part 11476 Element 6313114 or 6028812 ×1
  • Plate Special 1 x 2 with Clip Horizontal on Side Lime Part 11476 Element 6334046 or 6237143 ×1
  • Plate Special 8 x 8 with Grille [Hole in Center] Lime Part 4151b Element 6490404 or 6391755 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Medium Azure Part 15573 Element 6603587 or 6331949 ×2
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Medium Azure Part 18674 Element 6136419 ×1
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Orange Part 99206 Element 6289113 ×1
  • Plate Special Round 1 x 1 with Hollow Stud and Horizontal Bar 1L Tan Part 32828 Element 6286492 ×1
  • Bracket 1 x 2 - 2 x 2 Inverted White Part 99207 Element 6552151 or 6548279 ×2
  • Bracket 2 x 2 - 2 x 2 White Part 3956 Element 6313593 or 395601 ×1
  • Plate Special 2 x 2 with Pin on Bottom White Part 2476a Element 6313603 or 4293876 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Yellow Part 2540 Element 4140587 or 254024 ×1
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 5mm] Yellow Part 88072 Element 6261356 or 4611704 ×2
  • Plate Special 3 x 2 with Rounded End, Hole Yellow Part 3176 Element 4188313 or 4141738 ×2

Bricks Round and Cones 17 pieces

  • Brick Round 1 x 1 Open Stud Lavender Part 3062b Element 6209673 ×1
  • Brick Round, Half 1 x 2 Medium Azure Part 68013 Element 6308034 ×1
  • Brick Round 1 x 1 Open Stud Tan Part 3062b Element 4117070 or 306205 ×3
  • Cylinder Half 2 x 4 x 2 with 1 x 2 Cutout Tan Part 24593 Element 6249554 or 6234107 ×1
  • Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end Yellow Part 25214 Element 6253294 or 6173898 ×4
  • Brick Round 2 x 2 Dome Top, Hollow Stud Yellow Part 30367c Element 4216656 ×1
  • Brick Round 2 x 2, Pin Holes Yellow Part 17485 Element 6378132 or 6102524 ×1
  • Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style] Yellow Part 85080 Element 6064227 or 4557533 ×3
  • Brick Round Corner 4 x 4 Macaroni Wide with 3 Studs Yellow Part 48092 Element 6200676 or 4552395 ×2

Bricks Sloped 17 pieces

  • Brick Sloped 75° 2 x 1 x 3 with Hollow Stud Lavender Part 4460b Element 6170322 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Lime Part 3660 Element 4529679 or 4212708 ×1
  • Brick Sloped 18° 4 x 2 Medium Azure Part 30363 Element 6383965 ×3
  • Brick Sloped 30° 1 x 2 x 2/3 Orange Part 85984 Element 6068996 or 4648855 ×6
  • Brick Sloped 45° 2 x 1 with Bottom Pin Yellow Part 3040b Element 4121965 or 304024 ×2
  • Brick Sloped 45° 2 x 4 Yellow Part 3037 Element 4219911 or 303724 ×1

Bars, Ladders and Fences 10 pieces

  • Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip] Light Bluish Gray Part 48729b Element 6278156 or 4542590 ×2
  • Curled Decorative Ornament / Plant Vine with Bar Trans-Light Blue Part 28870 Element 6210440 ×4
  • Bar 2L with Stop in Center White Part 78258 Element 6357680 ×2
  • Bar 6L with Stop Ring White Part 63965 Element 6170419 or 6081986 ×1
  • Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye White Part 58176 Element 6194512 or 4623199 ×1

Technic Pins 10 pieces

  • Technic Pin with Friction Ridges Lengthwise with No Center Slots Black Part 61332 Element 6279875 ×3
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×4
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 ×2
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×1

Panels 9 pieces

  • Panel 1 x 6 x 5 Lavender Part 59349 Element 6249322 or 6097864 ×2
  • Panel 1 x 2 x 2 [Side Supports / Hollow Studs] Tan Part 87552 Element 6063943 ×4
  • Panel 1 x 6 x 5 Tan Part 59349 Element 4512688 ×1
  • Panel 1 x 2 x 1 with Rounded Corners and 2 Sides Trans-Light Blue Part 23969 Element 6507955 or 6248908 ×1
  • Panel 1 x 4 x 3 [Side Supports / Hollow Studs] White Part 60581 Element 6615548 or 4558208 ×1

Tiles Round and Curved 9 pieces

  • Tile Round 1 x 1 with '5' Coin Print Flat Silver Part 98138pr0185 Element 6329604 ×1
  • Tile 4 x 4 Curved, Macaroni Lavender Part 27507 Element 6475595 or 6391756 ×2
  • Tile Round 1 x 1 Trans-Green Part 98138 Element 6514194 or 6274742 ×1
  • Tile Round 1 x 1 Trans-Red Part 98138 Element 6514189 or 6258607 ×1
  • Tile Round 1 x 1 with Squinted Eye, Center Side Pupil Print White Part 98138pr0083 Element 6329648 ×2
  • Tile Round Corners 4 x 4 x 2/3 White Part 68869 Element 6531022 or 6321214 ×1
  • Tile Round 2 x 2 with Bottom Stud Holder Yellow Part 14769 Element 6078279 ×1

Tiles Special 9 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Yellow Part 2412b Element 241224 ×3
  • Tile Special 1 x 2 with Handle Yellow Part 2432 Element 243224 ×6

Energy Effects 6 pieces

  • Wave / Flame Rounded with Base Rim Trans-Light Blue Part 6126b Element 6167739 ×6

Technic Bricks 6 pieces

  • Technic Brick 1 x 1 with Axle Hole Black Part 73230 Element 6344819 ×1
  • Technic Brick 1 x 1 with Pin Hole Yellow Part 6541 Element 654124 ×4
  • Technic Brick 1 x 8 [7 Pin Holes] Yellow Part 3702 Element 370224 ×1

Minifig Accessories 5 pieces

  • Equipment Net 8 x 14 Lattice Lime Part 30923 Element 6391762 ×1
  • Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 Tan Part 64644 Element 6060850 ×1
  • Food Popsicle / Lollipop Trans-Dark Blue Part 30222 Element 6514029 or 6267057 ×1
  • Food Popsicle / Lollipop Trans-Neon Green Part 30222 Element 6216057 or 4568173 ×1
  • Tap 1 x 1 without Hole in Spout White Part 4599b Element 459901 ×1

Technic Connectors 5 pieces

  • Technic Pin Connector Round with 4 Clips Black Part 90202 Element 6320293 or 6052369 ×1
  • Technic Pin Connector Hub with 1 Axle Dark Bluish Gray Part 22961 Element 6135014 ×1
  • Technic Pin Connector Round [Slotted] Lime Part 62462 Element 6308238 ×3

Containers 4 pieces

  • Box 2 x 2 x 2 [Hollow Studs] Light Bluish Gray Part 4345b Element 4211491 ×2
  • Box 2 x 2 x 2 Door with Slot White Part 4346 Element 434601 ×2

Windows and Doors 3 pieces

  • Door Frame 1 x 6 x 6 Medium Azure Part 42205 Element 6331407 ×1
  • Door 1 x 5 x 3 with 3 Studs and Handle Medium Nougat Part 93096 Element 6172430 ×1
  • Door 1 x 3 x 2 Left - Open Between Top and Bottom Hinge White Part 92262 Element 6296037 or 6115627 ×1

Minifig Shields, Weapons, & Tools 2 pieces

  • Weapon Gun / Blaster with Studs on Side White Part 44709 Element 6253694 ×2

Animal / Creature Body Parts 1 piece

  • Animal Body Part / Plant, Tail / Neck / Branch / Trunk, Middle Section with Pin, Square Pin Hole Reddish Brown Part 51274 Element 6326087 ×1

Minidoll Heads 1 piece

  • Minidoll Head, Sand Dark Pink Goggles, Bright Light Blue Glasses, Bubbles, Dark Pink Lips Print Nougat Part 92198pr0317 Element 6387273 ×1

Stickers 1 piece

  • Sticker Sheet for Set 41720-1 [No Color/Any Color] Part 01504 Element 6387456 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 1 x 6 x 3 Trans-Light Blue Part 64453 Element 6580414 or 6514292 ×1

Minifigures 3 figures

  • Santiago - Reddish Brown Hair, Life Vest Minifigure, checked as a whole figure ×1
  • Olivia - Dark Azure Top, Dark Azure Skirt Minifigure, checked as a whole figure ×1
  • Nandi - Dark Turquoise Top, Dark Pink Skirt, Yellow Ribbon 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.

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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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