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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.

Formula 1 Racer

Checking

5540 Formula 1 Racer

447 pieces in 128 part and color combinations.

LEGO counts 451 pieces. This inventory comes from a separate parts catalog and lists 447; 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.

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

Black 161 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×4
  • Brick 1 x 4 Black Part 3010 Element 301026 ×4
  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×6
  • Brick Sloped 33° 3 x 1 Black Part 4286 Element 428626 ×8
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×4
  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Black Part 4287a ×10
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×8
  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×12
  • Flexible Hose 8.5L with Tabless Ends (Ends same color as Tube) Black Part 73590c01a ×2
  • Hinge Brick 1 x 2 Base Black Part 3937 Element 393726 ×1
  • Hinge Brick 1 x 2 Top Plate Thin Black Part 3938 Element 393826 ×1
  • Hinge Plate 1 x 2 with 2 Fingers and Solid Studs Black Part 4276a ×2
  • Hinge Plate 1 x 2 with 3 Fingers [Solid Studs] Black Part 4275a ×4
  • Hinge Tile 1 x 2 1/2 with 2 Fingers on Top Black Part 4531 Element 453126 ×2
  • Plate 1 x 1 Black Part 3024 Element 302426 ×2
  • Plate 1 x 10 Black Part 4477 Element 447726 ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×26
  • Plate 1 x 3 Black Part 3623 Element 362326 ×4
  • Plate 1 x 4 Black Part 3710 Element 371026 ×5
  • Plate 1 x 8 Black Part 3460 Element 346026 ×4
  • Plate 2 x 10 Black Part 3832 Element 383226 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×3
  • Plate 2 x 6 Black Part 3795 Element 379526 ×4
  • Plate 2 x 8 Black Part 3034 Element 303426 ×1
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×1
  • Plate 4 x 8 Black Part 3035 Element 303526 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×4
  • Technic Axle 4 Black Part 3705 Element 370526 ×1
  • Technic Axle 6 Black Part 3706 Element 370626 ×2
  • Technic Axle 8 Black Part 3707 Element 370726 ×3
  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×4
  • Technic Brick 1 x 6 [5 Pin Holes] Black Part 3894 Element 389426 ×2
  • Technic Plate 1 x 4 with Toothed Ends Black Part 4263 Element 4251466 or 4225509 ×4
  • Technic Plate 1 x 6 with Toothed Ends Black Part 4262 Element 4225507 or 4189329 ×2
  • Technic Wedge Belt Wheel Tire Black Part 2815 Element 6028041 or 281526 ×2
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×1
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×3
  • Tyre 24 x 13 Model Team Black Part 2696 Element 269676 or 269626 ×10

Red 99 pieces

  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×4
  • Brick 1 x 3 Red Part 3622 Element 362221 ×8
  • Brick 1 x 4 Red Part 3010 Element 301021 ×3
  • Brick 1 x 6 Red Part 3009 Element 300921 ×2
  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×1
  • Brick 2 x 8 Red Part 3007 Element 6036408 or 300721 ×1
  • Brick Sloped 33° 3 x 1 Red Part 4286 Element 428621 ×4
  • Brick Sloped 33° 3 x 2 Red Part 3298 Element 329821 ×3
  • Brick Sloped 33° 3 x 3 Double Convex Red Part 3675 Element 367521 ×2
  • Brick Sloped 33° 3 x 4 Red Part 3297 Element 329721 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×2
  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Red Part 4287a ×2
  • Brick Sloped Inverted 45° 2 x 1 Red Part 3665 Element 366521 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Red Part 3660 Element 366021 ×4
  • Brick Wedged, Sloped 4 x 4 Taper Red Part 4858 Element 4570480 or 4203737 ×1
  • Panel 1 x 2 x 2 [Solid Studs] Red Part 4864a ×12
  • Plate 1 x 1 Red Part 3024 Element 302421 Also in Trans-Red ×4
  • Plate 1 x 2 Red Part 3023 Element 302321 ×12
  • Plate 1 x 3 Red Part 3623 Element 362321 ×4
  • Plate 1 x 6 Red Part 3666 Element 366621 ×4
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate 2 x 4 Red Part 3020 Element 302021 ×2
  • Plate 2 x 6 Red Part 3795 Element 379521 ×1
  • Plate 4 x 6 Red Part 3032 Element 303221 ×1
  • Plate 6 x 12 Red Part 3028 Element 4617409 or 4288289 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Red Part 3794a ×7
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 1 spare in the box ×2
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×2

Light Gray 88 pieces

  • Bar 1 x 4 x 2 with Studs Light Gray Part 4083 Element 408302 ×1
  • Brick 2 x 3 Light Gray Part 3002 Element 300252 or 300202 ×1
  • Brick 2 x 4 Light Gray Part 3001 Element 4116259 or 300102 ×1
  • Brick Sloped 33° 3 x 1 Light Gray Part 4286 Element 428602 ×4
  • Brick Special 1 x 1 with Headlight Light Gray Part 4070 Element 407002 ×8
  • Cone 1 x 1 [No Top Groove] Light Gray Part 4589 Element 458902 ×2
  • Hinge Brick 1 x 2 Base Light Gray Part 3937 Element 393702 ×4
  • Hinge Brick 1 x 2 Top Plate Thin Light Gray Part 3938 Element 393802 ×4
  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×2
  • Plate 2 x 3 Light Gray Part 3021 Element 302102 ×1
  • Plate 2 x 4 Light Gray Part 3020 Element 302002 ×2
  • Plate Round 1 x 1 with Solid Stud Light Gray Part 6141 Element 614102 ×8
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Gray Part 4032a Element 403202 ×6
  • Plate Special 1 x 2 with Ladder Light Gray Part 4175 Element 4100526 or 417502 ×4
  • Tap 1 x 1 with Hole in Spout Light Gray Part 4599a Element 459902 ×2
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×14
  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 1 spare in the box ×8
  • Technic Bush 1/2 Toothed Type I [+ Opening] Light Gray Part 4265a Element 426502 1 spare in the box ×6
  • Technic Gear 14 Tooth Bevel Light Gray Part 4143 Element 414352 or 414302 1 spare in the box ×1
  • Technic Gear Rack 1 x 4 Light Gray Part 3743 Element 374302 ×2
  • Technic Steering Arm Light Gray Part 4261 Element 4225506 or 4189316 ×2
  • Technic Wedge Belt Wheel [aka Pulley] Light Gray Part 4185 Element 4100502 or 418502 ×2
  • Tile 1 x 2 with Groove Light Gray Part 3069b Element 306902 ×3

White 87 pieces

  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×3
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×3
  • Brick 1 x 8 White Part 3008 Element 6550134 or 300801 ×4
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×1
  • Brick Sloped 33° 3 x 1 White Part 4286 Element 6632142 or 428601 ×4
  • Brick Sloped 33° 3 x 2 White Part 3298 Element 329801 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin White Part 3040b Element 6552115 or 4121932 ×2
  • Brick Sloped 45° 2 x 1 with Bottom pin, with 9 Large + 3 Small Black Buttons Print White Part 3040bpr0010 Element 4161160 or 4121973 ×2
  • Brick Sloped 45° 2 x 2 White Part 3039 Element 6552103 or 303901 ×2
  • Brick Sloped 45° 2 x 2 Double Convex White Part 3045 Element 4233370 or 304501 ×2
  • Brick Sloped 45° 2 x 4 White Part 3037 Element 6552102 or 303701 ×2
  • Brick Sloped 45° 3 x 4 Double / 33° White Part 4861 Element 486101 ×2
  • Brick Special 1 x 1 with Headlight White Part 4070 Element 6548267 or 407001 ×2
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 Also in Trans-Clear ×6
  • Plate 1 x 10 White Part 4477 Element 6552113 or 6550148 ×4
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 Also in Trans-Clear ×4
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×2
  • Plate 1 x 8 White Part 3460 Element 6550141 or 346001 ×3
  • Plate 2 x 10 White Part 3832 Element 6552109 or 383201 ×3
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 Also in Trans-Clear ×2
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×2
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 Also in Trans-Clear ×3
  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×1
  • Plate 4 x 4 White Part 3031 Element 6552127 or 4243812 ×1
  • Plate 4 x 6 White Part 3032 Element 303201 ×1
  • Plate 6 x 12 White Part 3028 Element 4120020 or 302801 ×1
  • Plate 6 x 14 White Part 3456 Element 6256981 or 4253856 ×1
  • Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 1 spare in the box ×2
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×8
  • Tile 1 x 8 with Groove White Part 4162 Element 6552110 or 416201 ×2
  • Wheel 30 x 13 Model Team White Part 2695 Element 4507077 or 4240315 ×10

Trans-Clear 7 pieces

  • Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 Also in White ×2
  • Plate 1 x 2 Trans-Clear Part 3023 Element 6514001 or 6240204 Also in White ×3
  • Plate 2 x 2 Trans-Clear Part 3022 Element 4541740 or 4238011 Also in White ×1
  • Plate 2 x 4 Trans-Clear Part 3020 Element 4541739 or 4130382 Also in White ×1

Trans-Red 2 pieces

  • Plate 1 x 1 Trans-Red Part 3024 Element 6513963 or 6252042 Also in Red ×2

Trans-Yellow 2 pieces

  • Flexible Hose 8.5L with Tabless Ends (Ends same color as Tube) Trans-Yellow Part 73590c01a ×2

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 5540-1 [No Color/Any Color] Part 197915 ×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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