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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.

X1 Patrol Craft

Checking

6861 X1 Patrol Craft

50 pieces in 25 part and color combinations, plus 1 minifigure.

The official 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.

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Piece checklist

Bricks Round and Cones 14 pieces

  • Brick Round 2 x 2 with Axle Hole Light Gray Part 3941 Element 614302 or 394102 ×8
  • Cone 2 x 2 x 2, Solid Stud Light Gray Part 3942a ×2
  • Cone 4 x 4 x 2, No Axle Hole Light Gray Part 3943a ×2
  • Brick Round 1 x 1 Open Stud Trans-Red Part 3062b Element 6514235 or 6238673 ×2

Plates 10 pieces

  • Plate 1 x 1 Light Gray Part 3024 Element 302402 ×2
  • Plate 2 x 10 Light Gray Part 3832 Element 383202 ×1
  • Plate 2 x 3 Light Gray Part 3021 Element 302102 ×1
  • Plate 2 x 8 Light Gray Part 3034 Element 303402 ×2
  • Plate 4 x 6 Light Gray Part 3032 Element 303202 ×1
  • Plate 6 x 8 Light Gray Part 3036 Element 303652 or 303602 ×1
  • Plate 1 x 1 Trans-Red Part 3024 Element 6513963 or 6252042 ×2

Plates Special 5 pieces

  • Bracket 2 x 2 - 2 x 2 Light Gray Part 3956 Element 395602 ×4
  • Plate Special 1 x 2 with Handles [Round Ends, Mid Attachment] Light Gray Part 3839a ×1

Plates Wedged 4 pieces

  • Wedge Plate 8 x 4 Wing Right without Stud Notch Light Gray Part 3934a ×2
  • Wedge, Plate 8 x 4 Wing Left without Underside Stud Notch Light Gray Part 3933a ×2

Supports, Girders and Cranes 4 pieces

  • Support Round 2 x 2 x 2 Stand with Blocked Center Hole Light Gray Part 3940a ×4

Bricks 3 pieces

  • Brick 1 x 2 Light Gray Part 3004 Element 300402 ×2
  • Brick 1 x 2 without Bottom Tube Trans-Green Part 3065 Element 6514266 or 6244908 ×1

Transportation - Sea and Air 3 pieces

  • Brick Special 1 x 1 with 3 Speakers / Loudspeakers / Space Positioning Rockets Light Gray Part 3963 Element 396302 ×2
  • Tail 4 x 2 x 2 Light Gray Part 3479 Element 347952 or 347902 ×1

Bars, Ladders and Fences 2 pieces

  • Antenna 1 x 4 with Rounded Top Light Gray Part 3957a Element 395702 ×2

Bricks Sloped 2 pieces

  • Brick Sloped 33° 3 x 2 with Classic Space Logo Print Light Gray Part 3298pr0039 ×1
  • Brick Sloped 45° 2 x 2 Light Gray Part 3039 Element 303902 ×1

Minifig Shields, Weapons, & Tools 2 pieces

  • Weapon Gun / Torch (Space) [with Grooves] Light Gray Part 3959 Element 4254948 or 395952 ×2

Transportation - Land 1 piece

  • Steering Stand 1 x 2 with Black Steering Wheel Light Gray Part 3829c01 Element 9556 ×1

Minifigures 1 figure

  • Classic Spaceman, Red with Airtanks (3842a Helmet) 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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