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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.

ROCKA Crawler

Checking

44023 ROCKA Crawler

37 pieces in 21 part and color combinations, plus 2 minifigures.

The official piece count includes the 12 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

Black 11 pieces

  • Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip] Black Part 48729b Element 6278152 or 6037347 1 spare in the box ×2
  • Large Figure Foot, with Ball Socket 3 x 5 x 2 Black Part 15976 Element 6057727 ×2
  • Large Figure Skeletal, Limb with Ball Joint and Ball Socket, Short Black Part 90612 Element 4593557 ×1
  • Large Figure Skeletal, Limb, 5L with Ball Joint on Axle and Ball Socket Black Part 90609 Element 4593555 ×2
  • Large Figure Skeletal, Torso with 6 Ball Joints, and 4 Holes, Extra Small Black Part 98590 Element 4667277 ×1
  • Launcher, Weapon Gun / Blaster / Shooter Mini Black Part 15391 Element 6051331 ×1
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×2

Pearl Titanium 7 pieces

  • Arm Mechanical with Clip [Thick Support] Pearl Titanium Part 98313 Element 6276869 or 6008484 ×4
  • Large Figure Limb Cover, Size 4, Armor with Ball Joint Socket Pearl Titanium Part 90640 Element 6061054 or 6013698 ×1
  • Large Figure Shield, with Handle for Clip Pearl Titanium Part 92222 Element 4623002 ×2

Pearl Gold 6 pieces

  • Large Figure Limb Cover, Size 4, Armor with Ball Joint Socket Pearl Gold Part 90640 Element 6092885 or 6013699 ×4
  • Tool Chainsaw Blade Pearl Gold Part 6117 Element 6202609 or 4655309 ×2

Dark Bluish Gray 4 pieces

  • Large Figure Skeletal, Limb, 4L with Ball Joint on Axle and Ball Socket Dark Bluish Gray Part 90611 Element 6056934 or 6014009 ×2
  • Launcher Trigger, Weapon Gun Trigger Dark Bluish Gray Part 15392 Element 6051334 1 spare in the box ×1
  • Technic Beam 1 x 3 with Ball Joint in Middle Dark Bluish Gray Part 98577 Element 6001085 ×1

Trans-Neon Green 3 pieces

  • Bar 4L (Lightsaber Blade / Wand) Trans-Neon Green Part 30374 Element 6507881 or 6170186 ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Neon Green Part 6141 Element 6240223 or 3005749 1 spare in the box ×1

Trans-Red 3 pieces

  • Large Figure Creature Cocoon Petal with Black Base Pattern Trans-Red Part 15358pat0001 Element 6100514 or 6071210 ×3

Dark Brown 1 piece

  • Technic Axle and Pin Connector Angled Triple [120° Offset] Dark Brown Part 10288 Element 6273219 or 6005755 ×1

Flat Silver 1 piece

  • Large Figure Limb Cover, Size 5, Armor with Ball Joint Socket with Red Arrows, Black and Gold Chevrons, and Hero Factory Logo Print Flat Silver Part 90639pr0030 Element 6060849 ×1

Lime 1 piece

  • Large Figure Cockpit Seat with Ball Joint Lime Part 15353 Element 6058121 ×1

Minifigures 2 figures

  • Rocka in Pearl Dark Gray Armor Minifigure, checked as a whole figure ×1
  • Hero Factory Jumper, Blue Top, Orange Base 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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