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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.

Ferrari F1 Pit 1:55

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8155 Ferrari F1 Pit 1:55

482 pieces in 142 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

Red 255 pieces

  • Bracket 1 x 2 - 1 x 4 [Square Corners] Red Part 2436 Element 4282742 or 243621 ×4
  • Bracket 1 x 2 - 2 x 2 Red Part 44728 Element 6117974 or 6048856 ×6
  • Brick 1 x 1 Red Part 3005 Element 300521 ×8
  • Brick 1 x 10 Red Part 6111 Element 611121 ×3
  • Brick 1 x 12 Red Part 6112 Element 611221 ×1
  • Brick 1 x 16 Red Part 2465 Element 6378410 or 246521 ×4
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×4
  • Brick 1 x 3 Red Part 3622 Element 362221 ×11
  • Brick 1 x 4 Red Part 3010 Element 301021 ×2
  • Brick 1 x 6 Red Part 3009 Element 300921 ×2
  • Brick 1 x 8 Red Part 3008 Element 300821 ×5
  • Brick 2 x 2 Corner Red Part 2357 Element 235771 or 235721 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Red Part 6091 Element 6184782 or 609121 ×6
  • Brick Curved 3 x 1 No Studs Red Part 50950 Element 4251162 ×7
  • Brick Curved 4 x 1 No Studs [Stud Holder with Asymmetric Ridges] Red Part 61678 Element 4520782 ×3
  • Brick Round 1 x 1 Open Stud Red Part 3062b Element 306221 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Red Part 54200 Element 5074621 or 4504379 ×14
  • Brick Sloped Inverted 45° 2 x 1 Red Part 3665 Element 366521 ×2
  • Brick Special 1 x 1 with Headlight Red Part 4070 Element 407021 ×6
  • Brick Special 1 x 4 with 4 Studs on One Side Red Part 30414 Element 4177991 or 4157223 ×3
  • Cupboard 2 x 3 x 2 with Solid Studs Red Part 4532 Element 6106113 or 453221 ×1
  • Door 1 x 3 x 2 Left Red Part 3189 Element 4121824 ×2
  • Door 1 x 3 x 2 Right Red Part 3188 Element 4121823 ×2
  • Flag 2 x 2 Square [Thin Clips] Red Part 2335 Element 4523404 or 4162384 ×1
  • Hinge Brick 1 x 2 Top Plate Thin Red Part 3938 Element 6534944 or 6078079 ×1
  • Panel 1 x 4 x 3 [Hollow Studs] Red Part 4215b Element 4262012 or 4105204 ×6
  • Plate 1 x 1 Red Part 3024 Element 302421 ×13
  • Plate 1 x 10 Red Part 4477 Element 447721 ×10
  • Plate 1 x 2 Red Part 3023 Element 302321 ×13
  • Plate 1 x 3 Red Part 3623 Element 362321 ×16
  • Plate 1 x 4 Red Part 3710 Element 371021 ×4
  • Plate 1 x 6 Red Part 3666 Element 366621 ×5
  • Plate 1 x 8 Red Part 3460 Element 346021 ×3
  • Plate 2 x 10 Red Part 3832 Element 383221 ×8
  • Plate 2 x 2 Corner Red Part 2420 Element 242071 or 242021 ×2
  • Plate 2 x 3 Red Part 3021 Element 302121 ×10
  • Plate 2 x 4 Red Part 3020 Element 302021 ×4
  • Plate 2 x 6 Red Part 3795 Element 379521 ×2
  • Plate 2 x 8 Red Part 3034 Element 303421 ×2
  • Plate 4 x 4 Red Part 3031 Element 4243814 or 303121 ×5
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Red Part 4085c Element 408521 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Red Part 3794a ×19
  • Plate Special 1 x 2 with Clips Horizontal [Thick U-Clips] Red Part 60470a Element 4537898 ×2
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Red Part 60478 Element 4515365 ×4
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×1
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 1 spare in the box Also in Trans-Red ×2
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×7
  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×4
  • Tile 1 x 6 with Groove Red Part 6636 Element 4113858 ×4
  • Tile 2 x 2 with Groove Red Part 3068b Element 306821 ×5
  • Wheel Arch, Mudguard 2 x 4 Studded Red Part 3788 Element 378821 ×1

Black 112 pieces

  • Bar 6.6L with Stop Ring [Umbrella Stand] Black Part 4095 Element 409526 ×2
  • Brick 1 x 3 Black Part 3622 Element 362226 ×1
  • Brick 2 x 3 Black Part 3002 Element 300226 ×4
  • Brick 2 x 4 Black Part 3001 Element 300126 ×1
  • Brick Sloped 45° 2 x 4 Black Part 3037 Element 303726 ×1
  • Cupboard 2 x 3 x 2 Door Black Part 4533 Element 4193693 or 4129637 ×1
  • Plate 1 x 1 Black Part 3024 Element 302426 ×2
  • Plate 1 x 4 Black Part 3710 Element 371026 ×1
  • Plate 2 x 2 Black Part 3022 Element 302226 Also in Dark Bluish Gray ×1
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 ×2
  • Plate 2 x 3 Black Part 3021 Element 302126 ×9
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate 2 x 6 Black Part 3795 Element 379526 ×1
  • Plate 2 x 8 Black Part 3034 Element 303426 Also in Dark Bluish Gray ×2
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 2 spares in the box ×3
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×6
  • Plate Special 1 x 2 with Door Rail Black Part 32028 Element 4107761 ×2
  • Plate Special 2 x 2 with Wheels Holder Wide Black Part 6157 Element 615726 ×12
  • String with End Studs 11L Overall Black Part 14226c11 Element 6096955 or 6037558 ×4
  • Tap 1 x 1 with Hole in Spout Black Part 4599a ×1
  • Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] Black Part 32064b ×2
  • Technic Plate 2 x 8 [7 Holes] Black Part 3738 Element 373826 ×2
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×1
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×2
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×2
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×1
  • Tool Screwdriver and Spanner / Wrench Black Part 4006 Element 6034000 or 4569095 ×1
  • Tyre 14 x 6 Solid Smooth Black Part 50951 Element 4246901 1 spare in the box ×16
  • Tyre 14 x 9 Smooth Small Wide Slick Black Part 30028 Element 4508215 or 3002826 ×12
  • Wheel 11 x 6 mm with Five Spokes and Silver Print Black Part 50944pr0001 Element 6022424 or 4248538 ×16

Light Bluish Gray 50 pieces

  • Bar 4L (Lightsaber Blade / Wand) Light Bluish Gray Part 30374 Element 6116608 or 4211628 ×1
  • Brick 1 x 1 x 5 with Blocked Open or Hollow Stud Light Bluish Gray Part 2453a ×2
  • Brick 1 x 12 Light Bluish Gray Part 6112 Element 4211522 ×2
  • Brick 1 x 16 Light Bluish Gray Part 2465 Element 4211366 ×2
  • Brick 1 x 2 x 2 with Inside Axle Holder Light Bluish Gray Part 3245b ×2
  • Brick 1 x 3 Light Bluish Gray Part 3622 Element 4211428 ×4
  • Brick 1 x 8 Light Bluish Gray Part 3008 Element 4211392 ×1
  • Brick Sloped 75° 2 x 1 x 3 with Hollow Stud Light Bluish Gray Part 4460b Element 4211494 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Light Bluish Gray Part 3660 Element 4211436 ×1
  • Brick Special 1 x 1 with Headlight Light Bluish Gray Part 4070 Element 4211476 ×2
  • Hinge Brick 1 x 2 Base Light Bluish Gray Part 3937 Element 4211469 ×1
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×2
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Bluish Gray Part 4032a Element 4211475 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Light Bluish Gray Part 3794a ×2
  • Plate Special 4 x 6, Studs on 3 Edges Light Bluish Gray Part 6180 Element 4211838 ×2
  • Tap 1 x 1 with Hole in Spout Light Bluish Gray Part 4599a ×2
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×1
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×4
  • Wheel 8 x 9 with Hole Notched for Wheels Holder Pin Light Bluish Gray Part 30027b Element 4211765 ×12
  • Wheel Holder 2 x 2 Thin with Split Wheel Clip Pins Light Bluish Gray Part 4870 Element 6510631 or 6296797 ×1

White 37 pieces

  • Antenna 1 x 4 with Rounded Top White Part 3957a ×2
  • Bracket 1 x 2 - 1 x 4 [Square Corners] White Part 2436 Element 4282737 or 4159314 ×3
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×2
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×1
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×1
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×1
  • Brick Curved 2 x 2 with Lip, No Studs White Part 30602 Element 4195869 ×1
  • Flag 2 x 2 Square with Checkered Print White Part 2335pr0019 Element 4523412 or 81267 ×1
  • Mudguard 2 x 4 with Molded Headlights White Part 44674 Element 6485272 or 4297330 ×1
  • Panel 1 x 2 x 1 [Square Corners] White Part 4865a Element 486501 ×1
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×2
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×7
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×2
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×1
  • Plate 4 x 4 White Part 3031 Element 6552127 or 4243812 ×1
  • Tile 1 x 2 with Computer Keyboard Standard Print White Part 3069bpr0030 Element 4293350 ×1
  • Tile 1 x 2 with Digital Clock Print - '12:01' or '10:21' White Part 3069bpr0025 Element 81268 ×1
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×1
  • Tile 1 x 4 with Groove White Part 2431 Element 6548255 or 243101 ×3
  • Tile 1 x 6 with Groove White Part 6636 Element 6548296 or 663601 ×2
  • Tile 2 x 2 with Groove White Part 3068b Element 6548263 or 306801 ×1
  • Wheel Arch, Mudguard 2 x 4 Studded White Part 3788 Element 4289272 ×1

Dark Bluish Gray 13 pieces

  • Brick Special 1 x 1 with Studs on 2 Sides Dark Bluish Gray Part 47905 Element 4213574 ×4
  • Plate 2 x 16 Dark Bluish Gray Part 4282 Element 4210796 ×1
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 Also in Black ×2
  • Plate 2 x 8 Dark Bluish Gray Part 3034 Element 4210997 Also in Black ×2
  • Plate 6 x 16 Dark Bluish Gray Part 3027 Element 4226358 ×2
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Dark Bluish Gray Part 4081b Element 6281996 or 4632574 ×2

Blue 7 pieces

  • Brick Round 1 x 1 Open Stud Blue Part 3062b Element 306223 ×1
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×2
  • Plate Round 1 x 1 with Solid Stud Blue Part 6141 Element 614123 1 spare in the box ×1
  • Tap 1 x 1 with Hole in Spout Blue Part 4599a Element 4279385 ×2
  • Technic Axle Connector with Axle Hole Blue Part 32039 Element 6330996 or 4107801 ×1

Yellow 4 pieces

  • Brick Special 1 x 1 with Headlight Yellow Part 4070 Element 407024 ×2
  • Plate Round 1 x 1 with Solid Stud Yellow Part 6141 Element 614124 1 spare in the box ×1
  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Yellow Part 6019 Element 4247863 or 4107445 ×1

Metallic Silver 1 piece

  • Tile Special 1 x 2 Grille with Bottom Groove Metallic Silver Part 2412b Element 6051422 or 4579833 ×1

Trans-Green 1 piece

  • Tile 1 x 1 with Groove Trans-Green Part 3070b Element 6581818 or 6254249 1 spare in the box ×1

Trans-Red 1 piece

  • Tile 1 x 1 with Groove Trans-Red Part 3070b Element 6581817 or 6254248 1 spare in the box Also in Red ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 8155-1 [No Color/Any Color] Part 61673 Element 4518986 ×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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