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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.

The Water Dragon Adventure

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41172 The Water Dragon Adventure

208 pieces in 98 part and color combinations, plus 1 minifigure.

The official piece count includes the 4 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

Medium Azure 44 pieces

  • Brick 1 x 4 Medium Azure Part 3010 Element 6603319 or 6036238 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Medium Azure Part 6091 Element 6335566 or 4655246 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Medium Azure Part 11477 Element 6603334 or 6071246 ×8
  • Brick Curved 2 x 2 x 2/3 Medium Azure Part 15068 Element 6119126 ×4
  • Brick Curved 3 x 1 No Studs Medium Azure Part 50950 Element 6035598 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Medium Azure Part 54200 Element 6603283 or 4619520 1 spare in the box ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Medium Azure Part 3660 Element 6070756 ×1
  • Brick Wedged, Curved 4 x 3 No Studs [Plain] Medium Azure Part 64225 Element 6610386 or 6368071 ×1
  • Creature Body Part, Dragon Head Lower Jaw with 1 Stud Medium Azure Part 24199 Element 6133334 ×1
  • Creature Body Part, Dragon Head Upper Jaw with 2 Studs on Top and White Decorations Print Medium Azure Part 24196pr0002 Element 6136945 ×1
  • Creature Body Part, Dragon Wing 13 x 8, with Marbled Trans-Purple Pattern Medium Azure Part 23989pat0002 Element 6133820 1 spare in the box ×2
  • Launcher, 1 x 4 with 1 x 2 Plate with Pin Hole and Bucket (Catapult) Medium Azure Part 88289 Element 6138779 ×1
  • Plate 1 x 2 Medium Azure Part 3023 Element 6603337 or 6097419 ×2
  • Plate 2 x 3 Medium Azure Part 3021 Element 6604733 or 6013828 ×1
  • Plate Round Corner 4 x 4 Medium Azure Part 30565 Element 6481835 or 6056271 ×2
  • Plate Special 1 x 1 with Vertical Tooth Medium Azure Part 15070 Element 6138770 ×8

Light Bluish Gray 23 pieces

  • Bracket 1 x 2 - 1 x 2 Light Bluish Gray Part 99781 Element 4654582 ×2
  • Brick 2 x 4 Light Bluish Gray Part 3001 Element 4211385 ×2
  • Brick 2 x 6 Light Bluish Gray Part 2456 Element 4274668 or 4211795 ×1
  • Brick Sloped 45° 2 x 2 Double Convex Light Bluish Gray Part 3045 Element 4216250 ×2
  • Brick Special 1 x 2 with 2 Studs on 1 Side Light Bluish Gray Part 11211 Element 6015344 ×1
  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×5
  • Plate Special 1 x 2 5.9mm Towball Socket Light Bluish Gray Part 14418 Element 6414556 or 6338163 ×5
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Light Bluish Gray Part 60478 Element 4515369 ×1
  • Plate Special 1 x 2, Top Clip [Split] Light Bluish Gray Part 92280 Element 4598526 ×1
  • Technic Axle Towball Light Bluish Gray Part 2736 Element 6443149 or 4211375 ×1
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×2

Medium Lavender 18 pieces

  • Brick Curved 2 x 2 x 2/3 Medium Lavender Part 15068 Element 6139090 ×1
  • Brick Curved Inverted 4 x 1 Medium Lavender Part 13547 Element 6138771 ×2
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed Medium Lavender Part 4871 Element 6133798 ×1
  • Plate 1 x 1 Medium Lavender Part 3024 Element 4619521 1 spare in the box ×2
  • Plate 1 x 2 Medium Lavender Part 3023 Element 4619512 ×5
  • Plate 1 x 4 Medium Lavender Part 3710 Element 6015108 or 4619524 ×2
  • Plate 2 x 6 Medium Lavender Part 3795 Element 6015115 or 4625027 ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Medium Lavender Part 2654 Element 6552575 or 6330097 ×4

Dark Bluish Gray 17 pieces

  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] Dark Bluish Gray Part 15672 Element 6069164 or 4621917 ×1
  • Plate Special 1 x 2 with 5.9mm Centre Side Towball Dark Bluish Gray Part 14417 Element 6414560 or 6338160 ×9
  • Plate Special 1 x 2 with 5.9mm Towball Socket and Towball Dark Bluish Gray Part 14419 Element 6414554 or 6338166 ×3
  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×1
  • Technic Brick 1 x 1 with Pin Hole Dark Bluish Gray Part 6541 Element 4210639 ×2
  • Tile Special 1 x 1 with Clip with Rounded Edges Dark Bluish Gray Part 15712 Element 6344022 or 6071226 ×1

Reddish Brown 17 pieces

  • Brick 1 x 2 Reddish Brown Part 3004 Element 4613963 or 4211149 ×4
  • Brick 2 x 2 Corner Reddish Brown Part 2357 Element 4211200 ×1
  • Brick Arch 1 x 3 x 3 [Gothic] Reddish Brown Part 13965 Element 6055086 ×3
  • Brick Sloped 33° 3 x 1 Reddish Brown Part 4286 Element 4211197 ×1
  • Brick Sloped 65° 2 x 2 x 2 with Bottom Tube Reddish Brown Part 3678b Element 4585066 or 4211320 ×1
  • Panel 1 x 2 x 1 with Rounded Corners and Central Divider Reddish Brown Part 93095 Element 6670645 or 6133860 ×1
  • Plate 1 x 2 Reddish Brown Part 3023 Element 4211150 ×2
  • Plate 2 x 4 Reddish Brown Part 3020 Element 4211186 ×2
  • Plate Special 1 x 2 with Pin Hole on Top Reddish Brown Part 11458 Element 6138664 ×2

Trans-Clear 15 pieces

  • Brick Round 1 x 1 Open Stud Trans-Clear Part 3062b Element 6514232 or 6223655 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Clear Part 54200 Element 6245250 or 4244362 1 spare in the box ×7
  • Brick Sloped 45° 2 x 2 Trans-Clear Part 3039 Element 6514100 or 6244886 ×2
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Trans-Clear Part 2654 Element 6581772 or 6163901 ×1
  • Tile 1 x 2 with Groove Trans-Clear Part 3069b Element 6514223 or 6251294 ×3
  • Tile Special Round 1 x 1 with Hollow Bar Trans-Clear Part 20482 Element 6507895 or 6186867 1 spare in the box ×1

Dark Purple 8 pieces

  • Animal Body Part, Bat Wing with Shaft [Chima Bat Wing] Dark Purple Part 15082 Element 6394539 or 6133818 ×2
  • Minifig Footwear Flipper [Thick] Dark Purple Part 10190 Element 6172941 or 6133801 ×1
  • Plate Round 1 x 1 with Solid Stud Dark Purple Part 6141 Element 4566522 1 spare in the box ×5

Lime 8 pieces

  • Brick 2 x 3 Lime Part 3002 Element 4220631 or 4122452 ×3
  • Plant, Leaves 4 x 3 Lime Part 2423 Element 6268818 or 6094069 ×2
  • Tile Round 1 x 1 Lime Part 98138 Element 6284583 or 6057878 1 spare in the box ×2
  • Tile Round 2 x 2 with Green Foliage Print Lime Part 14769pr1042 Element 6142097 ×1

Magenta 8 pieces

  • Headwear Accessory Bow with Heart, Long Ribbon and Pin Magenta Part 11618 Element 6023827 1 spare in the box ×1
  • Plant, Flower, Plate Round 1 x 1 with 4 Petals Magenta Part 33291 Element 6170306 or 6078932 1 spare in the box ×5
  • Plant, Leaves 6 x 5 Magenta Part 2417 Element 6266974 or 6133021 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Magenta Part 4081b Element 6037651 ×1

Trans-Light Blue 7 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Light Blue Part 54200 Element 6245277 or 6073445 1 spare in the box ×1
  • Brick Sloped 45° 2 x 2 Trans-Light Blue Part 3039 Element 6514099 or 6244885 ×4
  • Rock - Heart Jewel with Shaft Trans-Light Blue Part 15745 Element 6167812 or 6097099 ×1
  • Wave / Flame Rounded with Base Rim Trans-Light Blue Part 6126b Element 6167739 ×1

White 7 pieces

  • Animal Body Part, Horn (Cattle) / Tentacle / Vine / Branch / Tongue - Long White Part 13564 Element 6269074 or 6032360 1 spare in the box ×2
  • Animal, Clam [Type 2 - Locking Edge on Inner Lip] White Part 18866 Element 6092203 ×1
  • Plate Special 1 x 2 with Three Teeth [Tri-Tooth] White Part 15208 Element 6046381 ×4

Trans-Dark Pink 6 pieces

  • Brick 1 x 2 without Bottom Tube Trans-Dark Pink Part 3065 Element 6514270 or 6244913 ×4
  • Rock 1 x 1 Jewel / Gem 24 Facet Trans-Dark Pink Part 30153 Element 6513975 or 6247796 ×2

Black 5 pieces

  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 5mm] Black Part 88072 Element 6261348 or 4569733 ×1
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise Black Part 15100 Element 6073231 ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×2

Bright Green 3 pieces

  • Plant, Flower, Plate Round 1 x 1 with 4 Petals Bright Green Part 33291 Element 6170300 or 4619599 1 spare in the box ×3

Bright Light Orange 3 pieces

  • Equipment Hairbrush Short Handle [10mm] Bright Light Orange Part 3852b Element 4243668 ×1
  • Plant, Flower, Plate Round 1 x 1 with 4 Petals Bright Light Orange Part 33291 Element 6170304 or 4624184 1 spare in the box ×2

Green 3 pieces

  • Dish 2 x 2 Inverted [Radar] Green Part 4740 Element 4567908 or 4239191 ×1
  • Plate 2 x 6 Green Part 3795 Element 379528 ×1
  • Plate Round Corner 3 x 3 Green Part 30357 Element 6062166 or 4541187 ×1

Tan 3 pieces

  • Plate 6 x 10 Tan Part 3033 Element 4624185 or 4218966 ×1
  • Tile 2 x 2 with Groove Tan Part 3068b Element 4185177 or 4114002 ×1
  • Tile 2 x 2 with Map of Dragon Egg Location Print Tan Part 3068bpr0291 Element 6141978 ×1

Trans-Purple 3 pieces

  • Rock 1 x 1 Jewel / Gem 24 Facet Trans-Purple Part 30153 Element 6513977 or 6247799 ×3

Dark Blue 2 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Blue Part 15573 Element 6554197 or 6092588 ×1
  • Tile 2 x 2 with Groove Dark Blue Part 3068b Element 4205004 ×1

Dark Brown 2 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Dark Brown Part 11477 Element 6046943 ×2

Trans-Dark Blue 2 pieces

  • Tile Round 1 x 1 Trans-Dark Blue Part 98138 Element 6514190 or 6273627 1 spare in the box ×1
  • Tile Round 1 x 1 with Water Power Icon Print Trans-Dark Blue Part 98138pr0032 Element 6273628 or 6104423 1 spare in the box ×1

Dark Orange 1 piece

  • Tile, Star with Stud Holder, Pin Hole Dark Orange Part 11609 Element 6167775 or 6035618 1 spare in the box ×1

Pearl Gold 1 piece

  • Equipment Binoculars Pearl Gold Part 30162 Element 6034543 ×1

Trans-Neon Green 1 piece

  • Minifig Head [Plain] [Hollow Stud] Trans-Neon Green Part 3626c Element 6109893 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 41172-1 [No Color/Any Color] Part 25774 Element 6142714 or 6142710 ×1

Minifigures 1 figure

  • Naida Riverheart Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

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