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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.

Epic Battle Set - Zane vs. Nindroid

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71731 Epic Battle Set - Zane vs. Nindroid

58 pieces in 37 part and color combinations, plus 2 minifigures.

LEGO counts 57 pieces. This inventory comes from a separate parts catalog and lists 66, 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.

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Piece checklist

Black 15 pieces

  • Brick 2 x 2 Corner Black Part 2357 Element 235776 or 235726 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 1 spare in the box ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×2
  • Plate 1 x 8 Black Part 3460 Element 346026 ×1
  • Plate Special 1 x 2 with Door Rail Black Part 32028 Element 4107761 ×1
  • Technic Axle Connector Smooth [with x Hole + Orientation] Black Part 59443 Element 6084612 or 4512363 ×1
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Black Part 32064a Element 6178922 or 4233487 ×1
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×1
  • Turntable 2 x 2 x 1 Black Part 40145 Element 6252373 ×1
  • Tyre 14 x 4 Smooth Small Single [New Style] Black Part 59895 Element 4516843 or 4507700 ×1
  • Window 1 x 2 x 3 Flat Front Black Part 60593 Element 6468344 or 4536522 ×2

Light Bluish Gray 10 pieces

  • Antenna 1 x 4 with Flat Top Light Bluish Gray Part 3957b Element 4211473 ×1
  • Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip] Light Bluish Gray Part 48729b Element 6278156 or 4542590 1 spare in the box ×2
  • Brick 1 x 2 x 2 with Inside Stud Holder Light Bluish Gray Part 3245c Element 4211564 ×4
  • Brick Special 1 x 2 Palisade [aka Log] Light Bluish Gray Part 30136 Element 4550325 or 4519968 ×1
  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Light Bluish Gray Part 6553 Element 4211536 ×1
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×1

Trans-Light Blue 10 pieces

  • Weapon Katana with Trailing Effect Trans-Light Blue Part 73766d ×2
  • Weapon Nunchucks with Trailing Effect Trans-Light Blue Part 73766b ×2
  • Weapon Sickle with Trailing Effect Trans-Light Blue Part 73766c ×2
  • Weapon Throwing Star / Shuriken with Trailing Effect Trans-Light Blue Part 73766a ×4

Red 8 pieces

  • Brick Round 1 x 1 Open Stud Red Part 3062b Element 306221 ×2
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Red Part 4349 Element 434921 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Red Part 15573 Element 6092565 ×2
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Red Part 60478 Element 4515365 ×2
  • Weapon Lightsaber Hilt with Bottom Ring Red Part 64567 Element 6231857 1 spare in the box ×1

Dark Bluish Gray 7 pieces

  • Bar 1 x 8 x 2 Dark Bluish Gray Part 2486 Element 6062482 ×1
  • Bar Holder with Clip Dark Bluish Gray Part 11090 Element 6336970 or 6015890 ×1
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×1
  • Plate Round Half 4 x 8 Dark Bluish Gray Part 22888 Element 6141856 ×2
  • Tool Chainsaw Blade Dark Bluish Gray Part 6117 Element 6166069 or 4211048 ×1
  • Turntable Holder with Axle Dark Bluish Gray Part 40144 Element 6252372 ×1

Dark Purple 2 pieces

  • Brick Sloped 65° 2 x 1 x 2 Dark Purple Part 60481 Element 6022070 ×2

Trans-Red 2 pieces

  • Plate 1 x 2 Trans-Red Part 3023 Element 6514003 or 6240212 ×2

White 2 pieces

  • Brick Round 2 x 2 with Axle Hole White Part 3941 Element 6601920 or 614351 ×2

Flat Silver 1 piece

  • Plate Round 1 x 1 with Solid Stud Flat Silver Part 6141 Element 4633691 1 spare in the box ×1

Pearl Gold 1 piece

  • Weapon Sword Hilt with Dragon Head Pearl Gold Part 36017 Element 6224825 ×1

Minifigures 2 figures

  • Nindroid (Legacy) Minifigure, checked as a whole figure ×1
  • Zane - Flat Silver 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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