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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.

Ambush on Mandalore Battle Pack

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75373 Ambush on Mandalore Battle Pack

88 pieces in 42 part and color combinations, plus 4 minifigures.

LEGO counts 109 pieces. This inventory comes from a separate parts catalog and lists 110, including the 22 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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 Sloped 38 pieces

  • Brick Sloped 18° 4 x 2 Dark Bluish Gray Part 30363 Element 4210637 ×1
  • Brick Sloped 30° 1 x 2 x 2/3 Dark Bluish Gray Part 85984 Element 4567887 ×4
  • Brick Sloped 65° 2 x 1 x 2 Dark Bluish Gray Part 60481 Element 6013658 ×2
  • Brick Sloped Inverted 75° 2 x 1 x 3 Dark Bluish Gray Part 2449 Element 4500975 or 4226442 ×2
  • Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no stud Dark Tan Part 28192 Element 6335228 ×6
  • Brick Sloped 45° 2 x 1 with Bottom Pin Dark Tan Part 3040b Element 4530678 or 4251973 ×8
  • Brick Sloped 65° 2 x 1 x 2 Dark Tan Part 60481 Element 6354068 ×5
  • Brick Sloped 75° 2 x 2 x 3 [Solid Studs] Dark Tan Part 98560 Element 6000852 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Bluish Gray Part 54200 Element 4521921 or 4244372 1 spare in the box ×8

Plates 10 pieces

  • Plate 4 x 4 Dark Bluish Gray Part 3031 Element 4243831 or 4211089 ×1
  • Plate 1 x 2 Dark Tan Part 3023 Element 4528604 or 4497082 ×2
  • Plate 1 x 6 Dark Tan Part 3666 Element 6015424 ×2
  • Plate 2 x 4 Dark Tan Part 3020 Element 4497077 or 4267874 ×2
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×1
  • Plate 4 x 8 Light Bluish Gray Part 3035 Element 4211407 ×2

Plates Round Curved and Dishes 10 pieces

  • Plate Round 1 x 1 with Open Stud Dark Bluish Gray Part 85861 Element 6231765 1 spare in the box ×6
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×3

Plates Special 6 pieces

  • Plate Special Round 2 x 2 with Pin Hole and 4 Bars Up Black Part 98284 Element 6313508 or 4650145 ×1
  • Bracket 1 x 2 - 2 x 2 Inverted Dark Bluish Gray Part 99207 Element 6308045 ×2
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Dark Bluish Gray Part 60897 Element 6489464 or 6296892 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Bluish Gray Part 87580 Element 6126083 or 4565322 ×1
  • Plate Special 1 x 2 5.9mm Towball Socket Light Bluish Gray Part 14418 Element 6414556 or 6338163 ×1

Minifig Shields, Weapons, & Tools 5 pieces

  • Weapon Gun / Blaster Long (Star Wars) Black Part 57899 Element 4498712 ×1
  • Weapon Gun / Blaster Short (Star Wars) Black Part 58247 Element 4498713 ×2
  • Weapon Gun Automatic Pistol Medium Barrel Black Part 62885 Element 6103643 or 6052829 ×2

Bricks 4 pieces

  • Brick 1 x 1 Dark Tan Part 3005 Element 6001824 or 4497070 ×3
  • Brick 1 x 1 x 3 Dark Tan Part 14716 Element 6310988 ×1

Bricks Special 2 pieces

  • Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud] Dark Bluish Gray Part 60475b Element 6321350 or 4580437 ×1
  • Brick Special 1 x 1 with Handle Light Bluish Gray Part 2921 Element 6170569 or 4225532 ×1

Projectiles / Launchers 2 pieces

  • Launcher Trigger, Weapon Gun Trigger Dark Bluish Gray Part 69755 Element 6360675 1 spare in the box ×1
  • Launcher, Weapon Gun / Blaster / Shooter Square Pearl Titanium Part 69767 Element 6345880 ×1

Technic Connectors 2 pieces

  • Technic Axle and Pin Connector Angled #2 - 180° Dark Bluish Gray Part 32034 Element 32034199 or 6271876 ×1
  • Technic Axle Connector Smooth [with x Hole + Orientation] Light Bluish Gray Part 59443 Element 4512360 ×1

Tiles 2 pieces

  • Tile 1 x 1 with Dark Bluish Grey Armor Print White Part 3070bpr0317 Element 6488332 1 spare in the box ×2

Tiles Round and Curved 2 pieces

  • Tile Round 1 x 1 with Thermal Detonator Print Flat Silver Part 98138pr0010 Element 6287874 or 6006541 1 spare in the box ×1
  • Tile Round 2 x 2 with Bottom Stud Holder Light Bluish Gray Part 14769 Element 6052200 ×1

Bars, Ladders and Fences 1 piece

  • Bar Curved with Axle End and 1 x 1 Round Plate Trans-Clear Part 4042 Element 6510119 or 6444527 ×1

Containers 1 piece

  • Container Box 2 x 2 x 1 Reinforced Bottom Light Bluish Gray Part 2821 Element 6435835 ×1

Plates Wedged 1 piece

  • Wedge Plate 6 x 12 Right Light Bluish Gray Part 30356 Element 4211617 ×1

Technic Axles 1 piece

  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×1

Technic Pins 1 piece

  • Technic Pin with Friction Ridges Lengthwise and Towball - Round Pin Hole Black Part 66906 Element 6344752 ×1

Minifigures 4 figures

  • Mandalorian Nite Owl Minifigure, checked as a whole figure ×1
  • Mandalorian Warrior Minifigure, checked as a whole figure ×1
  • Imperial Commando Minifigure, checked as a whole figure ×2

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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