The Workshop Sheet 10 of 21

LEGO Missing Piece Checker

Enter a set number, mark each piece found or missing, and leave with a list of what is missing, the element IDs LEGO asks for and links to buy the parts. It is free and needs no account. Rule out the usual hiding places first.

Polar Explorer

Checking

6578 Polar Explorer

17 pieces in 15 part and color combinations, plus 1 minifigure.

The piece count includes the 5 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

White 10 pieces

  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×1
  • Brick Sloped 33° 3 x 2 White Part 3298 Element 329801 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin White Part 3040b Element 6552115 or 4121932 ×2
  • Brick Sloped 55° 1 x 6 x 5 White Part 30249 Element 6223277 or 6108594 ×1
  • Brick Sloped 75° 2 x 1 x 3 with Open Stud White Part 4460a ×2
  • Plate 4 x 6 White Part 3032 Element 303201 ×1
  • Wedge Plate 3 x 3 Cut Corner White Part 2450 Element 6601842 or 4280148 ×1
  • Wedge Plate 3 x 6 Cut Corners White Part 2419 Element 6552090 or 241901 ×1

Red 2 pieces

  • Antenna 8H Whip with Flag Red Part 30322 Element 4116931 ×1
  • Tap 1 x 1 with Hole in Spout Red Part 4599a ×1

Dark Gray 1 piece

  • Tool Ice Axe [6-Rib Handle] Dark Gray Part 30193 Element 4113836 1 spare in the box ×1

Light Gray 1 piece

  • Wedge Plate 3 x 3 Cut Corner Light Gray Part 2450 Element 245002 ×1

Trans-Dark Blue 1 piece

  • Insect, Spider Trans-Dark Blue Part 30238 Element 4206907 or 4120134 ×1

Trans-Light Blue 1 piece

  • Windscreen 5 x 2 x 1 2/3 Trans-Light Blue Part 6070 Element 6153478 or 607042 ×1

Trans-Yellow 1 piece

  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×1

Minifigures 1 figure

  • Arctic Crew, Black, Hood 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.