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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.

Auxiliary Patroller

Checking

6850 Auxiliary Patroller

40 pieces in 24 part and color combinations, plus 1 minifigure.

The piece count includes the 6 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

Plates Round Curved and Dishes 7 pieces

  • Dish 2 x 2 Inverted [Radar] Trans-Red Part 4740 Element 6580377 or 6245303 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 ×2
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 ×4

Hinges, Arms and Turntables 6 pieces

  • Hinge Brick 1 x 2 Top Plate Thin Black Part 3938 Element 393826 ×2
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Black Part 73983 Element 6102782 or 74011 ×2
  • Hinge Brick 1 x 2 Base White Part 3937 Element 6619287 or 393701 ×2

Plates 6 pieces

  • Plate 1 x 1 Trans-Dark Blue Part 3024 Element 6513965 or 6252044 1 spare in the box ×2
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×2
  • Plate 1 x 8 White Part 3460 Element 6550141 or 346001 ×2

Plates Wedged 5 pieces

  • Wedge Plate 3 x 3 Cut Corner White Part 2450 Element 6601842 or 4280148 ×2
  • Wedge Plate 3 x 6 Cut Corners White Part 2419 Element 6552090 or 241901 ×1
  • Wedge Plate 4 x 4 Wing Left White Part 3936 Element 4280155 or 4200492 ×1
  • Wedge Plate 4 x 4 Wing Right White Part 3935 Element 4280154 or 4200491 ×1

Bricks Sloped 4 pieces

  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Black Part 4287a ×2
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×2

Bricks Special 3 pieces

  • Bracket 8 x 2 x 1 1/3 Black Part 4732 Element 473226 ×1
  • Brick Special 1 x 1 Studs on 4 Sides Black Part 4733 Element 473326 ×2

Panels 3 pieces

  • Panel 3 x 3 x 6 Corner Convex Trans-Dark Blue Part 2468 ×2
  • Panel 3 x 2 x 6 with Black Grill Print White Part 2466pr0001 ×1

Bars, Ladders and Fences 2 pieces

  • Lever Small Base with White Lever White Part 298c04 Element 6046019 or 4585623 1 spare in the box ×2

Tiles Special 2 pieces

  • Tile Special 1 x 2 with Handle Black Part 2432 Element 243226 ×1
  • Tile Special 1 x 2 with Handle White Part 2432 Element 243201 ×1

Plates Special 1 piece

  • Plate Special 1 x 2 with Long Stud Receptacle (Space Wing) White Part 4596 Element 6287500 or 4625000 ×1

Tiles 1 piece

  • Tile 1 x 2 with Space Computer Print White Part 3069bpr0039 Element 80972 ×1

Minifigures 1 figure

  • Futuron Spaceman, Yellow with Airtanks and Dark Blue Visor 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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