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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.

Rescue Hovercraft

Checking

42120 Rescue Hovercraft

457 pieces in 115 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.

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Piece checklist

Black 176 pieces

  • Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip] Black Part 48729b Element 6278152 or 6037347 1 spare in the box ×1
  • Bar 4L (Lightsaber Blade / Wand) Black Part 30374 Element 6116604 or 4140303 ×2
  • Hose, Ribbed 7mm D. 9L / 7.2cm Black Part 78c09 Element 6443871 or 6420612 ×2
  • Jet Engine Fan with 10 Blades and Technic Pin Black Part 46667 Element 6313481 or 6088638 ×1
  • Large Figure Weapon Lightsaber Hilt with Axle Hole and Two Bar Holders Black Part 24122 Element 6280097 or 6155068 ×2
  • Propeller 3 Blades 5 Diameter, Pin Hole Black Part 92842 Element 6360206 or 4599984 ×2
  • Technic Axle 4 Black Part 3705 Element 370526 ×5
  • Technic Axle Connector Smooth [with x Hole + Orientation] Black Part 59443 Element 6084612 or 4512363 ×5
  • Technic Axle Connector with Axle Hole [Reinforced] Black Part 42135 Element 6331716 ×2
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Black Part 18651 Element 6089119 ×5
  • Technic Axle and Pin Connector Angled #4 - 135° Black Part 32192 Element 6262897 or 4121610 ×2
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Black Part 32184 Element 6276951 or 4121667 ×4
  • Technic Axle and Pin Connector Perpendicular Double Black Part 32291 Element 6280394 or 4140430 ×2
  • Technic Axle and Pin Connector Perpendicular Triple Black Part 63869 Element 6362991 or 6007966 ×1
  • Technic Beam 1 x 11 Thick Black Part 32525 Element 6029578 or 4534909 ×1
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Black Part 60483 Element 6265091 or 6006140 ×6
  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×4
  • Technic Beam 1 x 7 Thick Black Part 32524 Element 4495935 or 4155458 ×3
  • Technic Beam 2 x 3 L-Shape with Quarter Ellipse Thick Black Part 71708 Element 6326047 ×3
  • Technic Beam 3 x 3 T-Shape Thick Black Part 60484 Element 4552347 or 4535771 ×6
  • Technic Beam 3 x 5 L-Shape Thick Black Part 32526 Element 4142823 or 3252626 ×6
  • Technic Gear 12 Tooth Double Bevel Black Part 32270 Element 4177431 ×6
  • Technic Panel Curved 3 x 13 Black Part 18944 Element 6208345 or 6162372 ×2
  • Technic Panel Curved 7 x 3 with 2 Pin Holes through Panel Surface Black Part 24119 Element 6150082 ×4
  • Technic Panel Curved and Bent 6 x 3 Black Part 24116 Element 6268012 or 6133246 ×2
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge] Black Part 65487 Element 6282140 ×5
  • Technic Pin Connector Hub with 2 Perpendicular Axles Black Part 10197 Element 6099801 or 6098801 ×8
  • Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Small Squared Pin Holes] Black Part 44874 Element 6366229 ×2
  • Technic Pin Connector Round 1L [Beam] Black Part 18654 Element 6121485 1 spare in the box ×2
  • Technic Pin Connector Toggle Joint Smooth Double with Axle and Pin Holes Black Part 87408 Element 6278412 or 4558692 ×6
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole] Black Part 65304 Element 6321745 ×4
  • Technic Pin with Friction Ridges Lengthwise with No Center Slots Black Part 61332 Element 6279875 1 spare in the box ×64
  • Technic Plate 1 x 5 with Smooth Ends, 4 Studs and Centre Axle Hole Black Part 32124 Element 6280168 or 4114689 ×1
  • Technic Wedge Belt Wheel Tire Black Part 2815 Element 6028041 or 281526 ×2
  • Tile 1 x 3 Black Part 63864 Element 4558170 ×1
  • Tyre 14 x 6 Solid Smooth Black Part 50951 Element 4246901 1 spare in the box ×2

Blue 78 pieces

  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Blue Part 6553 Element 6270716 ×2
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×32
  • Technic Axle and Pin Connector Angled #1 Blue Part 32013 Element 6332570 or 4107797 ×2
  • Technic Beam 3 x 3 L-Shape Thin Blue Part 32056 Element 6344048 or 6231880 ×4
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 1 spare in the box ×15
  • Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot Blue Part 42924 Element 6299413 ×23

Light Bluish Gray 41 pieces

  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×4
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Light Bluish Gray Part 42003 Element 6273724 or 4211779 ×4
  • Technic Axle and Pin Connector Perpendicular Split Light Bluish Gray Part 92907 Element 6279023 or 4630114 ×1
  • Technic Axle and Pin Connector Perpendicular Triple Light Bluish Gray Part 63869 Element 6331441 or 4538007 ×2
  • Technic Beam 1 x 11 Thick Light Bluish Gray Part 32525 Element 4611705 or 4534910 ×3
  • Technic Beam 1 x 7 Thick Light Bluish Gray Part 32524 Element 4495930 or 4211665 ×1
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×6
  • Technic Pin 1/2 with 2L Bar Extension Light Bluish Gray Part 61184 Element 6347715 or 4520320 ×1
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×6
  • Technic Pin Connector Hub Perpendicular 3L with 4 Pins (Squared Holes) Light Bluish Gray Part 65489 Element 6282158 ×2
  • Technic Pin Double with Axle Hole - Squared Holes Light Bluish Gray Part 65098 Element 6406084 or 6315900 ×1
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×8
  • Wheel 11 x 8 with Center Groove Light Bluish Gray Part 42610 Element 4211758 ×2

Orange 40 pieces

  • Axle Hose, Soft 7L Orange Part 32580 Element 6474926 or 6326051 ×2
  • Brick Curved 3 x 1 No Studs Orange Part 50950 Element 4251969 ×1
  • Hose, Ribbed 7mm D. 5L / 4.0cm Orange Part 78c05 Element 6326215 1 spare in the box ×4
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Orange Part 24866 Element 6214234 1 spare in the box ×1
  • Plate 1 x 3 Orange Part 3623 Element 6147047 or 4513281 ×1
  • Technic Axle and Pin Connector Angled #3 - 157.5° Orange Part 32016 Element 6366185 or 6251180 ×4
  • Technic Beam 1 x 13 Thick Orange Part 41239 Element 4629802 or 4164424 ×4
  • Technic Beam 1 x 3 Thick Orange Part 32523 Element 6102618 or 4655127 ×4
  • Technic Beam 1 x 9 Thick Orange Part 40490 Element 6135086 or 4157376 ×1
  • Technic Beam 2 x 4 L-Shape Thick Orange Part 32140 Element 6271832 or 4508664 ×4
  • Technic Panel Curved 7 x 3 with 2 Pin Holes through Panel Surface Orange Part 24119 Element 6523810 or 6303440 ×4
  • Technic Panel Fairing # 3 Small Smooth Long, Side A Orange Part 64683 Element 6601288 or 6285295 ×2
  • Technic Panel Fairing # 4 Small Smooth Long, Side B Orange Part 64391 Element 6601286 or 6285294 ×2
  • Technic Panel Fairing #21 5L Small Smooth, Side B Orange Part 11946 Element 6340604 or 6022767 ×2
  • Technic Panel Fairing #22 5L Small Smooth, Side A Orange Part 11947 Element 6352662 or 6286428 ×2
  • Technic Tooth 1 x 3 with Axle Hole [Hollow Underside] Orange Part 48267 Element 6292485 ×2

Red 27 pieces

  • Large Figure Weapon, Barrel with 2 Pin Holes and 3 Axle Holes Red Part 98585 Element 6313596 ×1
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×4
  • Technic Axle 6 Red Part 3706 Element 6130002 or 4191526 ×1
  • Technic Axle Connector with Axle Hole [Reinforced] Red Part 42135 Element 6344178 ×3
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Red Part 11214 Element 6209519 ×11
  • Technic Beam 1 x 4 Thin Red Part 32449 Element 6330205 or 4141811 ×4
  • Technic Beam 1 x 5 Thick Red Part 32316 Element 4142132 or 4128589 ×1
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole] Red Part 65304 Element 6347789 ×2

Dark Bluish Gray 21 pieces

  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Dark Bluish Gray Part 61409 Element 4540386 or 4521185 ×2
  • Dish 6 x 6 Inverted, Radar / Webbed [Anti-studs at 90°] Dark Bluish Gray Part 4285b Element 4224253 ×2
  • Technic Axle 8 with Stop Dark Bluish Gray Part 55013 Element 4499858 ×2
  • Technic Axle and Pin Connector Perpendicular Dark Bluish Gray Part 6536 Element 6536199 or 6261374 ×3
  • Technic Beam 1 x 2 Thin Dark Bluish Gray Part 41677 Element 6338422 or 4210980 ×2
  • Technic Beam 2 x 4 L-Shape Thick Dark Bluish Gray Part 32140 Element 6271830 or 4210667 ×4
  • Technic Panel 3 x 7 x 1 Dark Bluish Gray Part 71709 Element 6321715 ×2
  • Technic Pin Connector Hub with 2 Axles Dark Bluish Gray Part 27940 Element 6167281 ×1
  • Tile Special Round 2 x 2 with Hole Dark Bluish Gray Part 15535 Element 6055313 ×2
  • Wheel 31 x 15 Technic, 7 Pin Holes Dark Bluish Gray Part 60208 Element 4549886 ×1

Yellow 16 pieces

  • Technic Axle 3 Yellow Part 4519 Element 6130007 ×9
  • Technic Axle 7 Yellow Part 44294 Element 6130009 ×1
  • Technic Axle and Pin Connector Angled #2 - 180° Yellow Part 32034 Element 6344325 or 6210804 ×1
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×5

Tan 15 pieces

  • Technic Axle 4 with Centre Stop Tan Part 99008 Element 4666999 ×2
  • Technic Gear 12 Tooth Bevel Tan Part 6589 Element 4565452 or 4514556 ×8
  • Technic Gear 20 Tooth Bevel Tan Part 32198 Element 6031962 or 4514557 ×1
  • Technic Pin 3/4 Tan Part 32002 Element 6663097 or 6013938 1 spare in the box ×2
  • Technic Pin Long without Friction Ridges, with Anti-Roll Notch Tan Part 39888 Element 6321305 ×2

White 14 pieces

  • Equipment Flotation Ring [Life Preserver] White Part 30340 Element 4297083 ×1
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole White Part 60483 Element 6265135 or 6177268 ×9
  • Technic Pin Connector Round 1L [Beam] White Part 18654 Element 6550155 or 6177114 1 spare in the box ×4

Trans-Clear 8 pieces

  • Brick Sloped 45° 2 x 1 with Bottom Pin Trans-Clear Part 3040b Element 6507936 or 6277460 ×2
  • Plate 1 x 2 Trans-Clear Part 3023 Element 6514001 or 6240204 ×2
  • Tile Round 1 x 1 Trans-Clear Part 98138 Element 6514191 or 6274738 1 spare in the box ×4

Reddish Brown 7 pieces

  • Technic Axle 3 with Stop Reddish Brown Part 24316 Element 6135494 ×6
  • Technic Axle 5 with Stop Reddish Brown Part 15462 Element 6159763 ×1

Lime 4 pieces

  • Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Small Squared Pin Holes] Lime Part 44874 Element 6526674 or 6366476 ×2
  • Technic Wedge Belt Wheel [aka Pulley] Lime Part 4185 Element 6335116 or 4494219 ×2

Trans-Dark Blue 4 pieces

  • Cone 1 x 1 [Top Groove] Trans-Dark Blue Part 59900 Element 6514018 or 6301313 ×2
  • Tile Round 1 x 1 Trans-Dark Blue Part 98138 Element 6514190 or 6273627 1 spare in the box ×2

Flat Silver 3 pieces

  • Handlebars Flat Silver Part 30031 Element 6158405 ×1
  • Weapon Sword / Foil / Épée Flat Silver Part 93550 Element 6222063 or 4618270 ×2

Trans-Green 1 piece

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Green Part 54200 Element 6245270 or 4244573 1 spare in the box ×1

Trans-Red 1 piece

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Red Part 54200 Element 6245252 or 4244363 1 spare in the box ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 42120-1 [No Color/Any Color] Part 72183 Element 6323403 ×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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