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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.

Twin-Arm Launcher

Checking

6039 Twin-Arm Launcher

69 pieces in 33 part and color combinations, plus 2 minifigures.

The official piece count includes the 8 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

Plates Special 12 pieces

  • Plate Special 1 x 1 with Clip Vertical [Thin U Clip] Black Part 4085b ×4
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] Black Part 4623 Element 4597267 or 462326 ×2
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Black Part 2444 Element 244426 ×2
  • Plate Special 2 x 2 with Wheel Holder Black Part 4488 Element 6092658 or 448826 ×4

Plates 11 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×2
  • Plate 1 x 4 Black Part 3710 Element 371026 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×4
  • Plate 2 x 8 Black Part 3034 Element 303426 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×1

Minifig Shields, Weapons, & Tools 7 pieces

  • Weapon Lance Brown Part 3849 Element 4160964 or 384925 ×1
  • Weapon Pike / Spear Round End Brown Part 4497 ×2
  • Shield Round with Stud Dark Gray Part 3876 ×2
  • Weapon Sword / Shortsword [Shiny Solid Smooth ABS] Dark Gray Part 3847a ×2

Bricks Round and Cones 6 pieces

  • Brick Round 1 x 1 Open Stud Red Part 3062b Element 306221 ×2
  • Brick Round 1 x 1 Open Stud Yellow Part 3062b Element 306844 or 306224 ×4

Bars, Ladders and Fences 4 pieces

  • Antenna 1 x 4 with Rounded Top Black Part 3957a ×4

Bricks Special 4 pieces

  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×2
  • Brick Special 1 x 2 with Pin Black Part 2458 Element 6116990 or 245826 ×2

Hinges, Arms and Turntables 4 pieces

  • Hinge Plate 1 x 2 with 3 Fingers On Side Black Part 2452 Element 245226 ×2
  • Hinge Plate 1 x 6 with 2 and 3 Fingers On Ends Black Part 4504 Element 4256462 or 4160816 ×2

Wheels and Tyres 4 pieces

  • Wheel Wagon Small (27mm D.) Brown Part 2470 Element 4248114 or 247075 ×4

Bricks 3 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×2
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×1

Flags, Banners and Signs 3 pieces

  • Flag 4 x 1 Wavy [First Wave Left] Red Part 4495a ×2
  • Flag 4 x 1 Wavy [First Wave Left] Yellow Part 4495a ×1

Plates Round Curved and Dishes 3 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Brown Part 4032a Element 403225 ×1
  • Plate Round 1 x 1 with Solid Stud Yellow Part 6141 Element 614124 ×2

Tiles 2 pieces

  • Tile 2 x 2 with Groove Red Part 3068b Element 306821 ×2

Transportation - Land 2 pieces

  • Construction Vehicle Bucket 2 x 3 Curved Bottom, Hollow, with Hinge 2 Fingers Black Part 4626 Element 462626 ×2

Animal / Creature Accessories 1 piece

  • Animal / Creature Accessory, Horse Barding with Yellow Lions Print Red Part 2490pr0014 ×1

Animals / Creatures 1 piece

  • Animal, Horse, Movable Head, Black Eyes, White Pupils, Brown Bridle Print White Part 4493c01pr0011 Element 4121830 or 73408 ×1

Bricks Sloped 1 piece

  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×1

Containers 1 piece

  • Barrel 2 x 2 x 2 Brown Part 2489 Element 248925 ×1

Minifigures 2 figures

  • Knight (Crusader Lion) - Blue Legs, Neck Protector Minifigure, checked as a whole figure ×1
  • Knight (Breastplate on Red) - Blue Legs, Dark Gray Neck-Protector 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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