Free tool

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.

Monster Jumper

Checking

8165 Monster Jumper

91 pieces in 41 part and color combinations.

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 42 pieces

  • Bracket 1 x 2 - 2 x 2 Black Part 44728 Element 6117973 or 6048855 ×2
  • Brick 1 x 6 Black Part 3009 Element 300926 ×2
  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×2
  • Brick Sloped 33° 3 x 1 Black Part 4286 Element 428626 ×2
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Black Part 3660 Element 366026 ×2
  • Brick Wedged, Curved 2 x 3 x 2/3 Two Studs, Wing End Black Part 47456 Element 4285883 or 4218569 ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×4
  • Plate 1 x 6 Black Part 3666 Element 366626 ×2
  • Plate 1 x 8 Black Part 3460 Element 346026 ×2
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×1
  • Technic Axle 12 Black Part 3708 Element 370826 ×2
  • Technic Beam 1 x 9 Thick Black Part 40490 Element 4645732 or 4542788 ×2
  • Technic Brick 1 x 8 [7 Pin Holes] Black Part 3702 Element 370226 ×2
  • Technic Pin Connector Round [Slotted] Black Part 62462 Element 6173119 or 4526982 ×4
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×2
  • Technic Plate 2 x 4 [3 Holes] Black Part 3709 Element 370926 ×3
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×1
  • Tyre 43.2 x 26 Balloon Small Black Part 61481 Element 4518826 ×4

Dark Bluish Gray 13 pieces

  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Dark Bluish Gray Part 61409 Element 4540386 or 4521185 ×2
  • Brick Special 1 x 2 Palisade [aka Log] Dark Bluish Gray Part 30136 Element 4211095 ×2
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×1
  • Plate Special 1 x 2 with Door Rail Dark Bluish Gray Part 32028 Element 4543086 or 4541289 ×2
  • Pullback Motor 9 x 4 x 2 2/3 Dark Bluish Gray Part 47715 Element 4221427 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 ×3
  • Wheel Arch, Curved Wedge 4 x 3 with 2 x 2 Opening and 4 Studs Dark Bluish Gray Part 47755 Element 4294289 ×2

Lime 12 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Lime Part 54200 Element 4504372 or 4298015 1 spare in the box ×2
  • Brick Wedged, Curved Triple 4 x 4 x 2/3, 2 Studs Lime Part 45677 Element 6146900 or 6030275 ×1
  • Brick Wedged, Curved Triple 4 x 6 x 2/3 with 4 Studs Lime Part 52031 Element 6146890 or 4500755 ×1
  • Plate 1 x 2 Lime Part 3023 Element 4164037 or 4122439 ×2
  • Plate 1 x 8 Lime Part 3460 Element 6392872 or 4271565 ×2
  • Wedge Plate 3 x 2 Left Lime Part 43723 Element 4539907 or 4183168 ×2
  • Wedge Plate 3 x 2 Right Lime Part 43722 Element 4539908 or 4183167 ×2

Light Bluish Gray 8 pieces

  • Plate Round 1 x 1 with Solid Stud Light Bluish Gray Part 6141 Element 4211525 1 spare in the box ×4
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×4

Orange 4 pieces

  • Wheel 30.4 x 20 without Pinholes, with Reinforced Rim Orange Part 56145 Element 6597019 or 6207477 ×4

Tan 4 pieces

  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×4

Trans-Yellow 4 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Yellow Part 54200 Element 6245272 or 4260942 1 spare in the box ×4

Blue 2 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×2

White 1 piece

  • Ramp, Safety Stripes and Tire Tracks Print White Part 84605 Element 4540612 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 8165-1 [No Color/Any Color] Part 84563 Element 4540328 ×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.