BlockTalk Find Your Set

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.

Jay's Dragon Mech Fight

Checking

71853 Jay's Dragon Mech Fight

99 pieces in 49 part and color combinations, plus 2 minifigures.

The official piece count includes the 8 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.

Show

Piece checklist

Black 15 pieces

  • Animal / Creature Body Part, Claw with Clip Black Part 3171 Element 6420198 ×4
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Black Part 60470b Element 6310268 or 4556158 ×2
  • Plate Special 1 x 2 with Handles on Ends Black Part 18649 Element 6099483 ×1
  • Plate Special 2 x 2 x 2/3 with Axle Hole and Grill on Sides (Haybale) Black Part 71752 Element 6325254 ×2
  • Technic Brick Special 2 x 2 with Pin Hole, with 2 Rotation Joint Sockets Black Part 48172 Element 6296186 or 4275826 ×2
  • Technic Pin with Friction Ridges Lengthwise with No Center Slots Black Part 61332 Element 6279875 1 spare in the box ×2
  • Wheel Arch, Mudguard 3 x 4 with 2 x 2 Plate Black Part 28326 Element 6170597 ×2

Green 13 pieces

  • Plate 2 x 3 Green Part 3021 Element 302128 ×1
  • Plate 2 x 6 Green Part 3795 Element 379528 ×2
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Green Part 60470b Element 6347288 or 4556159 ×2
  • Plate Special, 2 x 2 Studs and Handle, Closed Ends (Mech Chest Plate / Armor) Green Part 27167 Element 6591550 or 6346745 ×1
  • Tile Round 1 x 2 Half Circle Green Part 1748 Element 6510079 or 6493697 1 spare in the box ×2
  • Tile Special 2 x 3 Pentagonal Green Part 22385 Element 6290600 ×3
  • Weapon Bladed Claw Spread Green Part 10187 Element 6329651 1 spare in the box ×2

Dark Bluish Gray 12 pieces

  • Cockpit 4 x 2 x 3 with Pin Hole, and 2 Clips Dark Bluish Gray Part 98876 Element 6384443 ×2
  • Plate Angled 2 x 2 with Step and Hole in Center Dark Bluish Gray Part 79846 Element 6395097 ×4
  • Plate Special 1 x 2 with End Towball Dark Bluish Gray Part 22890 Element 6370802 or 6338168 ×4
  • Plate Special 1 x 2 with Ladder Dark Bluish Gray Part 4175 Element 6285244 or 6179567 ×2

Lime 11 pieces

  • Animal Body Part / Plant, Tail / Trunk / Tentacle / Tongue / Vine / Tree Branch (Long Tip) Lime Part 80497 Element 6382563 ×4
  • Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder Lime Part 15571 Element 6310287 ×4
  • Plate 2 x 2 Lime Part 3022 Element 4613977 or 4537937 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Lime Part 3700 Element 6132372 ×1
  • Wedge Plate 2 x 4 Lime Part 51739 Element 6464975 or 6025027 ×1

Pearl Gold 11 pieces

  • Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End Pearl Gold Part 47457 Element 4286597 ×2
  • Flames 5 x 7 x 1 x 1/3 with Studs, Handle Pearl Gold Part 7727 Element 6585952 ×3
  • Plate Special 1 x 2 [Side Handle Closed Ends] Pearl Gold Part 48336 Element 4585493 ×2
  • Tile Round 2 x 2 with Gold Dragon Head on Dark Blue Background Print Pearl Gold Part 14769pr0027 Element 6578513 ×1
  • Tile Special 2 x 3 Pentagonal Pearl Gold Part 22385 Element 6343767 ×1
  • Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard] Pearl Gold Part 21459 Element 6116596 1 spare in the box ×1
  • Weapon Sword, Big Blade with Bar Pearl Gold Part 98137 Element 6270131 or 4646843 ×1

Blue 10 pieces

  • Brick Wedged, Curved 4 x 3 No Studs [Plain] Blue Part 64225 Element 6411631 or 6174964 ×2
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×4
  • Plate Special 1 x 2, Top Clip [Open O] Blue Part 44861 Element 6537693 ×3
  • Plate Special, 2 x 2 Studs and Handle, Closed Ends (Mech Chest Plate / Armor) Blue Part 27167 Element 6463374 ×1

Bright Green 6 pieces

  • Mech Leg, Left, with Black Pin Bright Green Part 70946c01 Element 6647731 or 6600620 ×1
  • Mech Leg, Right, with Black Pin Bright Green Part 70943c01 Element 6647696 or 6600618 ×1
  • Plate Special 1 x 3 Rounded with 3 Open Studs Bright Green Part 77850 Element 6545373 ×4

Bright Light Yellow 5 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Bright Light Yellow Part 54200 Element 6296498 1 spare in the box ×2
  • Plate 2 x 2 Bright Light Yellow Part 3022 Element 6554804 or 6316265 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Bright Light Yellow Part 3700 Element 6467807 ×1

Light Bluish Gray 5 pieces

  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×4
  • Plate Special 1 x 2 with Clip Horizontal on End Light Bluish Gray Part 63868 Element 6319336 or 4535738 ×1

Dark Tan 4 pieces

  • Plate Special 1 x 2 with Three Teeth [Tri-Tooth] Dark Tan Part 15208 Element 6421619 ×4

Dark Blue 3 pieces

  • Animal, Dragon Leg Left with Black Pin Dark Blue Part 114912c01 Element 6576400 ×1
  • Animal, Dragon Leg Right with Black Pin Dark Blue Part 114888c01 Element 6576354 ×1
  • Wedge Plate 2 x 4 Dark Blue Part 51739 Element 4613335 or 4251895 ×1

Reddish Brown 2 pieces

  • Plate Special 2 x 2 with Only 2 studs Reddish Brown Part 33909 Element 6196221 ×2

Flat Silver 1 piece

  • Weapon Pike / Spear Flat End Flat Silver Part 93789 Element 4611883 ×1

Tan 1 piece

  • Plate Special 1 x 2 with Clip Horizontal on Side Tan Part 11476 Element 6313119 or 6177314 ×1

Minifigures 2 figures

  • Mutation Monster Minifigure, checked as a whole figure ×1
  • Jay (Draconus Form, No Wings or Tails) 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.

We value your privacy

We use cookies 🍪 for analytics and to improve your experience. Read our privacy policy