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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.

Ultimate Build Mater

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8677 Ultimate Build Mater

288 pieces in 103 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

Plates 86 pieces

  • Plate 1 x 6 Black Part 3666 Element 366626 ×3
  • Plate 1 x 8 Black Part 3460 Element 346026 Also in Dark Bluish Gray ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×2
  • Plate 4 x 8 Black Part 3035 Element 303526 ×1
  • Plate 1 x 8 Dark Bluish Gray Part 3460 Element 4210998 Also in Black ×5
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×1
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×2
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×2
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×1
  • Plate 2 x 2 Corner Light Bluish Gray Part 2420 Element 4211353 ×2
  • Plate 1 x 1 Medium Blue Part 3024 Element 4179826 ×10
  • Plate 1 x 2 Medium Blue Part 3023 Element 4179825 or 4165460 ×10
  • Plate 1 x 1 Reddish Brown Part 3024 Element 4221744 ×4
  • Plate 1 x 10 Reddish Brown Part 4477 Element 4223683 ×5
  • Plate 1 x 2 Reddish Brown Part 3023 Element 4211150 ×13
  • Plate 1 x 3 Reddish Brown Part 3623 Element 4211152 ×2
  • Plate 1 x 4 Reddish Brown Part 3710 Element 4211190 ×2
  • Plate 1 x 6 Reddish Brown Part 3666 Element 4221590 ×3
  • Plate 1 x 8 Reddish Brown Part 3460 Element 4216945 ×1
  • Plate 2 x 10 Reddish Brown Part 3832 Element 4211214 ×2
  • Plate 2 x 2 Reddish Brown Part 3022 Element 4613975 or 4216695 ×2
  • Plate 2 x 2 Corner Reddish Brown Part 2420 Element 4211257 ×2
  • Plate 2 x 3 Reddish Brown Part 3021 Element 4211189 ×3
  • Plate 2 x 4 Reddish Brown Part 3020 Element 4211186 ×1
  • Plate 2 x 6 Reddish Brown Part 3795 Element 4211247 ×5
  • Plate 4 x 10 Reddish Brown Part 3030 Element 4225715 ×1

Bricks 39 pieces

  • Brick 1 x 8 Black Part 3008 Element 300826 ×1
  • Brick 2 x 3 Dark Bluish Gray Part 3002 Element 4211105 ×2
  • Brick 2 x 2 Medium Blue Part 3003 Element 4205047 or 4201235 ×2
  • Brick 1 x 1 Reddish Brown Part 3005 Element 4211242 ×6
  • Brick 1 x 2 Reddish Brown Part 3004 Element 4613963 or 4211149 ×8
  • Brick 1 x 4 Reddish Brown Part 3010 Element 4211225 ×2
  • Brick 1 x 6 Reddish Brown Part 3009 Element 4211193 ×2
  • Brick 1 x 8 Reddish Brown Part 3008 Element 4263776 or 4245294 ×1
  • Brick 2 x 3 Sand Green Part 3002 Element 4642414 or 4618537 ×2
  • Brick 2 x 4 Sand Green Part 3001 Element 6075626 or 4642412 ×2
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×8
  • Brick 1 x 2 x 2 with Inside Stud Holder Yellow Part 3245c Element 4121625 ×2
  • Brick 1 x 8 Yellow Part 3008 Element 300824 ×1

Bricks Curved 20 pieces

  • Brick Curved 2 x 4 x 1 1/3 Dark Bluish Gray Part 6081 Element 4210968 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Reddish Brown Part 6091 Element 6335567 or 6035547 ×8
  • Brick Curved 1 x 4 x 1 1/3 No Studs, Lowered Inside Support Reddish Brown Part 6191 Element 4618543 or 4205468 ×8
  • Brick Curved 2 x 2, Two Top Studs Reddish Brown Part 30165 Element 6443904 or 4618542 ×2

Plates Round Curved and Dishes 20 pieces

  • Dish 4 x 4 Inverted [Radar] Dark Bluish Gray Part 3960 Element 4223981 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Brown Part 4032a Element 4623298 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Orange Part 4032a Element 4616027 ×2
  • Plate Round 1 x 1 with Solid Stud Light Bluish Gray Part 6141 Element 4211525 1 spare in the box ×2
  • Plate Round 1 x 1 with Solid Stud Reddish Brown Part 6141 Element 4216581 1 spare in the box ×4
  • Plate Round Corner 3 x 3 Reddish Brown Part 30357 Element 4283660 ×2
  • Dish 2 x 2 Inverted [Radar] Trans-Clear Part 4740 Element 6514246 or 6245306 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 2 spares in the box ×5
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×2

Bricks Sloped 14 pieces

  • Brick Sloped Inverted 45° 2 x 1 Medium Blue Part 3665 Element 4598015 or 4179831 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Reddish Brown Part 54200 Element 4504376 or 4260486 1 spare in the box ×2
  • Brick Sloped 75° 2 x 1 x 3 with Hollow Stud Reddish Brown Part 4460b Element 4270470 ×4
  • Brick Sloped Inverted 45° 2 x 1 Reddish Brown Part 3665 Element 4211222 ×2
  • Brick Sloped Inverted 45° 2 x 1 Sand Green Part 3665 Element 4623297 or 4153280 ×2

Bricks Special 13 pieces

  • Brick Special 1 x 1 with Clip Vertical [Thick U Clip, Solid Stud] Black Part 60475a Element 4515356 ×4
  • Brick Special 1 x 1 with Stud on 1 Side Light Bluish Gray Part 87087 Element 4558953 ×8
  • Brick Special 1 x 4 with 4 Studs on One Side Light Bluish Gray Part 30414 Element 4211636 ×1

Technic Pins 13 pieces

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×8
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×3
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 1 spare in the box ×2

Technic Bricks 11 pieces

  • Technic Brick 1 x 8 [7 Pin Holes] Black Part 3702 Element 370226 ×2
  • Technic Brick 1 x 1 with Pin Hole Dark Bluish Gray Part 6541 Element 4210639 ×2
  • Technic Brick 1 x 14 [13 Pin Holes] Dark Bluish Gray Part 32018 Element 4211137 ×4
  • Technic Brick 1 x 2 [1 Pin Hole] Dark Bluish Gray Part 3700 Element 4211111 ×1
  • Technic Brick 1 x 2 [2 Pin Holes] Light Bluish Gray Part 32000 Element 4211541 ×2

Technic Bushes 10 pieces

  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 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 ×6

Tiles 10 pieces

  • Tile 1 x 1 with Groove Reddish Brown Part 3070b Element 4211288 1 spare in the box ×2
  • Tile 1 x 2 with Groove Reddish Brown Part 3069b Element 4211151 ×3
  • Tile 1 x 6 with Groove Reddish Brown Part 6636 Element 4211204 ×4
  • Tile 2 x 4 with Teeth Print Reddish Brown Part 87079pr0026 Element 4616052 ×1

Plates Special 9 pieces

  • Plate Special 1 x 2 with Door Rail Dark Orange Part 32028 Element 6228839 or 4616022 ×8
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Light Bluish Gray Part 3794a ×1

Wheels and Tyres 8 pieces

  • Tyre 43.2 x 22 ZR Black Part 44309 Element 4184286 ×4
  • Wheel 30.4 x 20 without Pinholes, with Reinforced Rim Reddish Brown Part 56145 Element 4618633 ×4

Technic Axles 6 pieces

  • Technic Axle 10 Black Part 3737 Element 373726 ×3
  • Technic Axle 4 Black Part 3705 Element 370526 ×1
  • Technic Axle 8 Black Part 3707 Element 370726 ×1
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×1

Hinges, Arms and Turntables 4 pieces

  • Hinge Brick 1 x 2 Base Dark Bluish Gray Part 3937 Element 4211066 ×2
  • Hinge Brick 1 x 2 Top Plate Thin Light Bluish Gray Part 3938 Element 4211470 ×2

Technic Beams 4 pieces

  • Technic Beam 1 x 2 Thin Dark Bluish Gray Part 41677 Element 6338422 or 4210980 ×2
  • Technic Beam 3 x 3 T-Shape Thick Light Bluish Gray Part 60484 Element 4552348 or 4535772 ×2

Transportation - Land 4 pieces

  • Wheel Arch, Mudguard, 1 1/2 x 6 x 1 [Arch Extended] Dark Orange Part 62361 Element 4616054 ×4

Bricks Round and Cones 3 pieces

  • Brick Round 2 x 2 x 2 with Axle Hole and Fins Red Part 4591 Element 4570282 or 459121 ×1
  • Cone 2 x 2 x 2, Open Stud Red Part 3942c Element 6056297 or 6022147 ×1
  • Brick Round 2 x 2 with Axle Hole White Part 3941 Element 6601920 or 614351 ×1

Technic Connectors 3 pieces

  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×1
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Black Part 42003 Element 6273708 or 4200326 ×1
  • Technic Axle and Pin Connector Perpendicular Double Split Dark Bluish Gray Part 41678 Element 4234599 ×1

Bars, Ladders and Fences 2 pieces

  • Bar 1 x 4 x 2 Black Part 6187 Element 4141349 or 4121537 ×2

Panels 2 pieces

  • Panel 1 x 4 x 1 with Rounded Corners [Thick Wall] Reddish Brown Part 43337 Element 4585512 or 4565214 ×1
  • Panel 1 x 2 x 2 [Hollow Studs] Trans-Bright Green Part 4864b Element 4620598 ×1

String, Bands and Reels 2 pieces

  • String Cord Thin (0.5mm) 50cm Black Part 56823c50 Element 6530026 or 6489925 ×1
  • String Reel 2 x 1 x 2 Drum with Axle Hole Light Bluish Gray Part 61510 Element 4521532 ×1

Supports, Girders and Cranes 2 pieces

  • Crane Harbor Derrick 10 (Top Part) Dark Bluish Gray Part 2638 Element 4620596 ×1
  • Hook with Towball Dark Bluish Gray Part 30395 Element 30395199 or 6347464 ×1

Stickers 1 piece

  • Sticker Sheet for Set 8677-1 [No Color/Any Color] Part 95984 Element 4623306 ×1

Tiles Special 1 piece

  • Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 1 x 6 x 3 with Eyes on White Background Print Reddish Brown Part 64453pr0001 Element 4616040 ×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

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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.

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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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