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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.

The Origins

Checking

4851 The Origins

197 pieces in 97 part and color combinations, plus 6 minifigures.

The piece count includes the 23 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

Dark Gray 49 pieces

  • Brick 1 x 1 Dark Gray Part 3005 Element 4114079 or 300527 ×5
  • Brick 1 x 2 x 2 with Inside Axle Holder Dark Gray Part 3245b Element 4206827 ×2
  • Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges Dark Gray Part 2454a Element 4113235 or 245427 ×1
  • Brick 1 x 6 Dark Gray Part 3009 Element 4114082 or 300927 ×2
  • Brick 2 x 2 Dark Gray Part 3003 Element 4110008 or 300327 ×1
  • Brick 2 x 4 Dark Gray Part 3001 Element 4113855 or 300127 ×4
  • Brick Round 1 x 1 Open Stud Dark Gray Part 3062b Element 4113912 or 306227 ×1
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Dark Gray Part 3747a Element 4112039 ×4
  • Brick Special 1 x 2 with Groove Dark Gray Part 4216 Element 4204815 or 421627 ×6
  • Brick Special 2 x 2 x 6 with Groove Dark Gray Part 6056 Element 4206832 or 605627 ×2
  • Door Frame 1 x 4 x 6 Type 1 Dark Gray Part 30179 Element 4142714 ×1
  • Hinge Brick 1 x 2 Base Dark Gray Part 3937 Element 4112234 or 393727 ×2
  • Plate 1 x 6 Dark Gray Part 3666 Element 4109987 or 366627 ×1
  • Plate 2 x 4 Dark Gray Part 3020 Element 4112232 or 302027 ×2
  • Plate 2 x 6 Dark Gray Part 3795 Element 379527 ×2
  • Plate 6 x 10 Dark Gray Part 3033 Element 4116651 ×1
  • Plate Round 1 x 1 with Solid Stud Dark Gray Part 6141 Element 4124087 or 614127 1 spare in the box ×4
  • Tile 2 x 2 with Graduated Cylinder and Graph, Green Print Dark Gray Part 3068bpr0089 Element 4206853 ×1
  • Tile Special 1 x 1 with Clip and Straight Tips Dark Gray Part 2555 Element 4112884 1 spare in the box ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Gray Part 2412b Element 4124056 or 241227 ×4
  • Wedge Plate 3 x 6 Cut Corners Dark Gray Part 2419 Element 241927 ×1

Tan 44 pieces

  • Brick 1 x 4 Tan Part 3010 Element 4113916 or 301005 ×3
  • Brick 1 x 6 Tan Part 3009 Element 4112982 or 300905 ×3
  • Brick 2 x 3 Tan Part 3002 Element 4159739 or 300205 ×1
  • Brick 2 x 4 Tan Part 3001 Element 4114319 or 300105 ×1
  • Brick 2 x 6 Tan Part 2456 Element 4181134 or 4143256 ×1
  • Brick Round 2 x 2 with Axle Hole Tan Part 3941 Element 4125220 or 614305 ×16
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Tan Part 3660 Element 4118866 ×6
  • Brick Special 2 x 2 with Pin and Axle Hole Tan Part 6232 Element 6347700 or 4185273 ×2
  • Plate 1 x 2 Tan Part 3023 Element 4113917 or 302305 ×1
  • Plate 2 x 12 Tan Part 2445 Element 6093864 or 4526771 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Tan Part 2540 Element 4140593 or 4125271 ×6
  • Technic Brick 1 x 2 [1 Pin Hole] Tan Part 3700 Element 4205107 or 370005 ×2
  • Tile 1 x 6 with Groove Tan Part 6636 Element 4157277 or 4108151 ×1

Black 29 pieces

  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Black Part 3660 Element 366026 ×1
  • Equipment Camera Handheld with Right-Aligned Viewfinder Black Part 30089a ×1
  • Equipment Magnifying Glass with Thin Frame, Hollow Handle, Trans-Clear Lens Pattern Black Part 30152pat0001 Element 4114128 ×1
  • Fence Spindled 1 x 4 x 2 [2 Top Studs] Black Part 30055 Element 4185652 or 3005526 ×2
  • Hinge Brick 1 x 2 Base Black Part 3937 Element 393726 ×1
  • Insect, Spider Black Part 30238 Element 4113209 ×1
  • Plate 2 x 10 Black Part 3832 Element 383226 ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate 2 x 6 Black Part 3795 Element 379526 ×3
  • Plate 2 x 8 Black Part 3034 Element 303426 ×1
  • Plate Round Corner 4 x 4 Black Part 30565 Element 6101857 or 4528078 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×2
  • Plate Special 4 x 6, Studs on 3 Edges Black Part 6180 Element 4100378 or 618026 ×1
  • Support Round 2 x 2 x 2 Stand with Reach-Through Center Hole Black Part 3940b Element 394026 ×6
  • Technic Axle 8 Black Part 3707 Element 370726 ×3
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×2

Light Gray 29 pieces

  • Arm Mechanical with 2 Clips [Battle Droid] Light Gray Part 30377 Element 4142794 or 4125288 1 spare in the box ×2
  • Baseplate 16 x 16 Light Gray Part 3867 Element 4217335 or 4206787 ×2
  • Brick Round 2 x 2 with Axle Hole Light Gray Part 3941 Element 614302 or 394102 ×3
  • Brick Sloped 45° 2 x 1 with Bottom pin, with Green and Red Buttons and Keypad Print Light Gray Part 3040bpr0003 Element 4195655 ×1
  • Cylinder Half 2 x 4 x 4 Light Gray Part 6259 Element 4124176 or 621802 ×1
  • Door 1 x 3 x 2 Left Light Gray Part 3189 Element 4140490 ×1
  • Door 1 x 3 x 2 Right Light Gray Part 3188 Element 4140491 ×1
  • Door 1 x 4 x 6 with 3 Panes with Trans-Brown Glass Light Gray Part 76041c02 Element 4142729 ×1
  • Hinge Brick 1 x 2 Top Plate Thin Light Gray Part 3938 Element 393802 ×4
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Light Gray Part 73983 Element 74066 ×1
  • Lever Small Base with Black Lever Light Gray Part 298c02 Element 73588 1 spare in the box ×2
  • Panel 1 x 2 x 2 [Hollow Studs] Light Gray Part 4864b Element 4113017 ×2
  • Technic Plate 2 x 8 [7 Holes] Light Gray Part 3738 Element 373802 ×1
  • Tile 1 x 2 with Groove Light Gray Part 3069b Element 306902 ×3
  • Tile Round 2 x 2 with Bottom Cross Light Gray Part 4150 Element 415052 or 415002 ×1
  • Turntable 2 x 2 Plate - Top Light Gray Part 3679 Element 367952 or 367902 ×2
  • Window 1 x 4 x 6 Frame with 3 Panes, Fixed Glass with Trans-Brown Glass Light Gray Part 6160c04 Element 4142747 ×1

White 23 pieces

  • Bar 1 x 4 x 2 with Studs White Part 4083 Element 408301 ×2
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×1
  • Brick Round 2 x 2 with Axle Hole White Part 3941 Element 6601920 or 614351 ×2
  • Brick Sloped 45° 2 x 2 with Windows in Computer Screen Print White Part 3039pr0001 Element 4195657 ×2
  • Brick Special 1 x 1 with Handle White Part 2921 Element 6615537 or 6170567 ×4
  • Brick Special 1 x 4 with 4 Studs on One Side White Part 30414 Element 6550167 or 4143254 ×1
  • Hinge Brick 1 x 2 Base White Part 3937 Element 6619287 or 393701 ×1
  • Insect Accessory, Spider Web White Part 30240 Element 4295038 or 4164212 ×1
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×2
  • Plate 4 x 4 White Part 3031 Element 6552127 or 4243812 ×1
  • String with End Studs and Minifig Grips 21L White Part 14210 Element 6096959 or 6037448 ×1
  • Tile 1 x 2 with Simple Computer Keyboard Print White Part 3069bpr0049 Element 4227921 or 81890 ×3
  • Tile 2 x 2 with Computer Monitor, Dark Bluish Gray Power Switch Icon Print White Part 3068bpr0137 Element 4289304 ×1
  • Tile Round 2 x 2 with Bottom Cross White Part 4150 Element 415051 or 415001 ×1

Trans-Clear 8 pieces

  • Equipment Cup / Mug [Plain] Trans-Clear Part 3899 Element 6514013 or 6238856 ×1
  • Panel 1 x 2 x 3 - Solid Studs Trans-Clear Part 2362a ×2
  • Panel 1 x 4 x 3 [Hollow Studs] Trans-Clear Part 4215b Element 4129534 ×2
  • Panel 2 x 8 x 8 Trans-Clear Part 30650 Element 4152965 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×2

Trans-Green 4 pieces

  • Brick Round 1 x 1 Open Stud Trans-Green Part 3062b Element 6514234 or 6238046 ×3
  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×1

Trans-Red 4 pieces

  • Brick Round 1 x 1 Open Stud Trans-Red Part 3062b Element 6514235 or 6238673 ×2
  • Insect, Spider Trans-Red Part 30238 Element 4204863 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×1

Blue 3 pieces

  • Tile 2 x 2 with DNA Double-Helix Print Blue Part 3068bpr0090 Element 4206854 ×1
  • Turntable 2 x 2 Plate, Base Blue Part 3680 Element 368023 ×2

Trans-Dark Blue 1 piece

  • Insect, Spider Trans-Dark Blue Part 30238 Element 4206907 or 4120134 ×1

Trans-Neon Green 1 piece

  • Insect, Spider Trans-Neon Green Part 30238 Element 6109894 or 4120133 ×1

Trans-Neon Orange 1 piece

  • Insect, Spider Trans-Neon Orange Part 30238 Element 4156160 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 4851-1 [No Color/Any Color] Part 47401 Element 4206653 ×1

Minifigures 6 figures

  • Green Goblin with Gold Eyes on Helmet Minifigure, checked as a whole figure ×1
  • Spider-Man with Silver Webbing Minifigure, checked as a whole figure ×1
  • Mary Jane with Green Jacket and Light Violet Shirt Minifigure, checked as a whole figure ×1
  • Scientist with Open Jacket and Black and Brown Striped Tie Minifigure, checked as a whole figure ×1
  • Peter Parker in Sand Blue Jacket with Blue and Dark Blue Striped Shirt Minifigure, checked as a whole figure ×1
  • Norman Osborn with Plain Torso 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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