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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.

Wild Collection

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4101 Wild Collection

487 pieces in 173 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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Hinges, Arms and Turntables 150 pieces

  • Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End, 9 Teeth Black Part 30365 Element 4144502 or 4129975 ×15
  • Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 9 Teeth Black Part 30553 Element 4143372 ×18
  • Hinge Cylinder 1 x 3 Locking with 1 Finger and 2 Fingers On Ends, without Hole, 9 Teeth Black Part 30554a ×8
  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Black Part 30383 Element 6338799 or 4144575 ×10
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Black Part 44302a Element 4183060 ×2
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Black Part 73983 Element 6102782 or 74011 ×8
  • Hinge Brick 2 x 2 Locking with 1 Finger Vertical and Axle Hole [X Opening] Blue Part 30389c Element 4163903 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Blue Part 44301a Element 4518451 or 4183040 ×8
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Blue Part 73983 Element 6102759 or 4119371 ×4
  • Hinge Brick 1 x 2 Locking with 2 Fingers Horizontal End, 9 Teeth Brown Part 30540 Element 4187367 ×4
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Brown Part 73983 Element 4187366 ×4
  • Hinge Bar 8L with 3 Fingers and Open End Stud Dark Gray Part 4319 Element 4187369 ×2
  • Hinge Cylinder 1 x 2 Locking with 1 Finger and Axle Hole On Ends Dark Gray Part 30552 Element 4142724 ×12
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Dark Gray Part 44301a Element 4183044 ×2
  • Hinge Brick 1 x 2 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Green Part 30386 Element 4187742 or 3038628 ×8
  • Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End, 9 Teeth Green Part 30365 Element 4188788 or 3036528 ×4
  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Green Part 30383 Element 4561793 or 4183128 ×4
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Green Part 73983 Element 6102767 or 4187931 ×8
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Orange Part 44301a Element 4183047 ×2
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Orange Part 44302a Element 4183063 ×2
  • Hinge Brick 1 x 2 Locking with 1 Finger Horizontal End Red Part 30541 Element 4507196 or 4183012 ×2
  • Hinge Brick 1 x 2 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Red Part 30386 Element 6195080 or 4189231 ×10
  • Hinge Brick 1 x 4 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Red Part 30387 Element 6195079 or 4144570 ×8
  • Hinge Plate 1 x 8 Locking with Angled Side Extensions, Rounded Plate Underside, 9 Teeth Trans-Clear Part 30407 Element 4522776 or 4182186 ×4

Plates 83 pieces

  • Plate 1 x 3 Black Part 3623 Element 362326 ×1
  • Plate 1 x 4 Black Part 3710 Element 371026 ×2
  • Plate 1 x 8 Black Part 3460 Element 346026 ×1
  • Plate 2 x 2 Black Part 3022 Element 302226 ×5
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×4
  • Plate 2 x 6 Black Part 3795 Element 379526 ×1
  • Plate 1 x 6 Blue Part 3666 Element 366623 ×1
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×2
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×1
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×2
  • Plate 1 x 2 Brown Part 3023 Element 302325 ×2
  • Plate 2 x 8 Brown Part 3034 Element 4141046 or 303425 ×2
  • Plate 1 x 2 Dark Gray Part 3023 Element 4111983 or 302327 ×1
  • Plate 2 x 2 Dark Gray Part 3022 Element 4114003 or 302227 ×1
  • Plate 2 x 4 Dark Gray Part 3020 Element 4112232 or 302027 ×2
  • Plate 1 x 3 Dark Red Part 3623 Element 4539076 or 4164223 ×1
  • Plate 1 x 3 Green Part 3623 Element 4107758 or 362328 ×4
  • Plate 1 x 4 Green Part 3710 Element 371028 ×1
  • Plate 2 x 2 Green Part 3022 Element 302228 ×3
  • Plate 2 x 3 Green Part 3021 Element 302128 ×4
  • Plate 2 x 4 Green Part 3020 Element 302028 ×6
  • Plate 2 x 6 Green Part 3795 Element 379528 ×2
  • Plate 2 x 8 Green Part 3034 Element 303428 ×1
  • Plate 2 x 2 Light Gray Part 3022 Element 302202 ×1
  • Plate 1 x 4 Lime Part 3710 Element 4187743 or 4122441 ×4
  • Plate 1 x 4 Orange Part 3710 Element 4118782 ×6
  • Plate 2 x 2 Corner Orange Part 2420 Element 6106027 or 4513271 ×2
  • Plate 2 x 3 Orange Part 3021 Element 4125278 ×1
  • Plate 1 x 1 Red Part 3024 Element 302421 ×2
  • Plate 1 x 3 Red Part 3623 Element 362321 ×2
  • Plate 1 x 4 Red Part 3710 Element 371021 ×1
  • Plate 1 x 6 Red Part 3666 Element 366621 ×1
  • Plate 2 x 3 Red Part 3021 Element 302121 ×2
  • Plate 6 x 6 Red Part 3958 Element 4144302 ×1
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×2
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×1
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×2
  • Plate 1 x 8 Yellow Part 3460 Element 346024 ×2
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×1

Bricks Sloped 69 pieces

  • Brick Sloped 33° 3 x 2 Black Part 3298 Element 329826 ×1
  • Brick Sloped 45° 2 x 1 Triple with Ovoid Bottom Pin Black Part 3048c Element 304826 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×2
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×1
  • Brick Sloped 33° 3 x 1 Blue Part 4286 Element 428623 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Blue Part 3040b Element 4121936 or 304023 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Blue Part 3660 Element 366023 ×1
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed Brown Part 4871 Element 4187753 or 487125 ×1
  • Brick Sloped 33° 2 x 2 Double Green Part 3300 Element 4188814 or 4107636 ×1
  • Brick Sloped 33° 3 x 1 Green Part 4286 Element 4107637 or 428628 ×2
  • Brick Sloped 33° 3 x 2 Green Part 3298 Element 6226928 or 4497188 ×4
  • Brick Sloped 45° 2 x 1 Triple with Ovoid Bottom Pin Green Part 3048c Element 4519973 or 4188370 ×4
  • Brick Sloped 45° 2 x 2 Green Part 3039 Element 303928 ×6
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Green Part 3747a Element 4500456 or 4113071 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Green Part 3660 Element 4142717 ×4
  • Brick Sloped 45° 2 x 1 Triple with Ovoid Bottom Pin Lime Part 3048c Element 4183214 ×6
  • Brick Sloped 45° 2 x 1 with Bottom Pin Medium Blue Part 3040b Element 4626883 or 4128582 ×2
  • Brick Sloped 33° 3 x 2 Orange Part 3298 Element 4121742 ×8
  • Brick Sloped 45° 2 x 2 Orange Part 3039 Element 4118828 ×3
  • Brick Sloped 45° 2 x 2 Double Convex Orange Part 3045 Element 4593330 or 4118936 ×2
  • Brick Sloped 33° 3 x 2 Red Part 3298 Element 329821 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×2
  • Brick Sloped 45° 2 x 2 Red Part 3039 Element 303921 ×1
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Red Part 3747a Element 374721 ×4
  • Brick Sloped Inverted 45° 2 x 1 Red Part 3665 Element 366521 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Red Part 3660 Element 366021 ×2

Plates Round Curved and Dishes 53 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×6
  • Plate Round 1 x 1 with Solid Stud Dark Gray Part 6141 Element 4124087 or 614127 1 spare in the box ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Green Part 4032a Element 403228 ×12
  • Plate Round 1 x 1 with Solid Stud Lime Part 6141 Element 4183133 1 spare in the box ×12
  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 1 spare in the box ×5
  • Plate Round Corner 4 x 4 Red Part 30565 Element 6297811 or 6106370 ×4
  • Dish 2 x 2 Inverted [Radar] Trans-Clear Part 4740 Element 6514246 or 6245306 Also in White ×2
  • Dish 2 x 2 Inverted [Radar] Trans-Neon Green Part 4740 Element 6245297 or 4112517 ×2
  • Dish 2 x 2 Inverted [Radar] White Part 4740 Element 6601845 or 474001 Also in Trans-Clear ×2
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box ×4
  • Plate Round 1 x 1 with Solid Stud Yellow Part 6141 Element 614124 1 spare in the box ×2

Bricks 41 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×1
  • Brick 1 x 6 Black Part 3009 Element 300926 ×2
  • Brick 2 x 4 Black Part 3001 Element 300126 ×2
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×1
  • Brick 1 x 3 Blue Part 3622 Element 362223 ×1
  • Brick 1 x 2 Brown Part 3004 Element 300425 ×4
  • Brick 1 x 4 Brown Part 3010 Element 4143915 or 301025 ×4
  • Brick 1 x 2 Green Part 3004 Element 4107736 or 300428 ×3
  • Brick 1 x 4 Green Part 3010 Element 4112838 or 301028 ×5
  • Brick 2 x 2 Green Part 3003 Element 300328 ×3
  • Brick 2 x 2 Corner Green Part 2357 Element 4125281 or 4112544 ×2
  • Brick 2 x 3 Green Part 3002 Element 4109674 or 300228 ×2
  • Brick 1 x 2 Lime Part 3004 Element 4613965 or 4164022 ×1
  • Brick 1 x 3 Medium Dark Pink Part 3622 Element 4188782 or 4130304 ×1
  • Brick 1 x 2 Orange Part 3004 Element 4613981 or 4121739 ×1
  • Brick 1 x 6 Orange Part 3009 Element 4189007 or 4162760 ×2
  • Brick 1 x 3 Red Part 3622 Element 362221 ×2
  • Brick 1 x 4 Red Part 3010 Element 301021 ×1
  • Brick 2 x 3 Red Part 3002 Element 300271 or 300221 ×1
  • Brick 2 x 4 Red Part 3001 Element 300121 ×1
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×1

Bricks Wedged 23 pieces

  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges Brown Part 41748 Element 4163761 ×2
  • Brick Wedged, Curved 6 x 2 Right, Inner Ridges Brown Part 41747 Element 4163759 ×2
  • Brick Wedged, Curved Inverted 6 x 4 Brown Part 43713 Element 4180468 ×1
  • Brick Wedged, Sloped 4 x 4 Taper Brown Part 4858 Element 4187757 or 485825 ×1
  • Brick Wedged, Sloped 4 x 4 Triple, Stud Notches Brown Part 48933 Element 4234724 or 4222982 ×1
  • Brick Wedged, Sloped Inverted 4 x 4 Triple [2 Connections between Front Studs] Brown Part 4855 Element 4187771 or 485525 ×3
  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges Green Part 41748 Element 6371648 or 4621951 ×1
  • Brick Wedged, Curved 6 x 2 Right, Inner Ridges Green Part 41747 Element 6371650 or 4621952 ×1
  • Brick Wedged, Curved Inverted 6 x 4 Green Part 43713 Element 4535204 or 4180471 ×3
  • Brick Wedged, Sloped 45° 4 x 2 Left Green Part 43721 Element 4180520 ×1
  • Brick Wedged, Sloped 45° 4 x 2 Right Green Part 43720 Element 4180528 ×1
  • Brick Wedged, Sloped 4 x 2 Triple Left Orange Part 43710 Element 6338227 or 4662204 ×1
  • Brick Wedged, Sloped 4 x 2 Triple Right Orange Part 43711 Element 4662210 or 4180427 ×1
  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges Red Part 41748 Element 6191993 or 4286467 ×2
  • Brick Wedged, Curved 6 x 2 Right, Inner Ridges Red Part 41747 Element 6268534 or 4286466 ×2

Technic Axles 18 pieces

  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×6
  • Technic Axle 4 Black Part 3705 Element 370526 ×6
  • Technic Axle 6 Black Part 3706 Element 370626 ×6

Plates Special 15 pieces

  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Black Part 4081b Element 6281993 or 4632571 ×2
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Black Part 4085c Element 408526 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Black Part 2540 Element 4140588 or 254026 ×3
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×1
  • Plate Special 2 x 2 with Towball Socket, Short, 4 Slots Black Part 3730 Element 373026 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Green Part 3794a ×1
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Lime Part 3839b Element 4168244 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Red Part 4085c Element 408521 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Red Part 3794a ×1
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] Red Part 4623 Element 462321 ×1
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Red Part 3839b Element 4286611 or 383921 ×1

Plates Wedged 10 pieces

  • Wedge Plate 4 x 4 with 2 x 2 Cutout Black Part 43719 Element 6275401 or 4561035 ×1
  • Wedge Plate 4 x 4 with 2 x 2 Cutout Brown Part 43719 Element 4234931 or 4180431 ×2
  • Wedge Plate 3 x 2 Left Lime Part 43723 Element 4539907 or 4183168 ×1
  • Wedge Plate 3 x 2 Right Lime Part 43722 Element 4539908 or 4183167 ×1
  • Wedge Plate 3 x 2 Left Medium Blue Part 43723 Element 4185670 ×1
  • Wedge Plate 3 x 2 Right Medium Blue Part 43722 Element 4185669 ×1
  • Wedge Plate 3 x 6 Cut Corners Red Part 2419 Element 241921 ×1
  • Wedge Plate 4 x 4 with 2 x 2 Cutout Red Part 43719 Element 6275399 or 4561034 ×2

Bricks Curved 7 pieces

  • Brick Curved Inverted 6 x 1 Medium Blue Part 42023 Element 4160415 ×1
  • Brick Curved 2 x 2 with Lip, No Studs Orange Part 30602 Element 4169355 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Red Part 6091 Element 6184782 or 609121 ×3
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Sand Blue Part 6091 Element 4165660 ×1

Bricks Special 6 pieces

  • Brick Special 1 x 1 with Headlight Green Part 4070 Element 4187334 or 4109676 ×4
  • Brick Special 1 x 1 with Headlight White Part 4070 Element 6548267 or 407001 ×2

Bars, Ladders and Fences 4 pieces

  • Lever Small Base with Black Lever Black Part 298c02 Element 73587 1 spare in the box ×2
  • Lever Small Base with Black Lever Red Part 298c02 Element 74335 1 spare in the box ×2

Tiles Special 3 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×1
  • Tile Special 1 x 1 with Clip and Straight Tips Yellow Part 2555 Element 4164060 or 255524 ×2

Minifig Heads 2 pieces

  • Minifig Head [Plain] [Blocked Open Stud] White Part 3626b ×2

Bricks Round and Cones 1 piece

  • Cone 1 x 1 [No Top Groove] Green Part 4589 Element 4188820 or 458928 ×1

Technic Bricks 1 piece

  • Technic Brick 1 x 2 [1 Pin Hole] Green Part 3700 Element 6230235 or 4519977 ×1

Tools 1 piece

  • Brick Separator v1.0 Dark Gray Part 6007 Element 600727 ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

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