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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.

Mobile Crane

Checking

8053 Mobile Crane

1,289 pieces in 141 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 502 pieces

  • Plate 1 x 10 Black Part 4477 Element 447726 ×1
  • Plate 1 x 3 Black Part 3623 Element 362326 ×2
  • Plate 1 x 6 Black Part 3666 Element 366626 ×2
  • Steering Wheel Small, 2 x 2 Black Part 30663 Element 4153044 ×1
  • String Cord Thin (0.5mm) 200cm Black Part 56823c200 Element 4276325 or 71162 ×1
  • Technic Axle 10 Black Part 3737 Element 373726 ×2
  • Technic Axle 12 Black Part 3708 Element 370826 ×6
  • Technic Axle 4 Black Part 3705 Element 370526 ×20
  • Technic Axle 6 Black Part 3706 Element 370626 ×9
  • Technic Axle 8 Black Part 3707 Element 370726 ×7
  • Technic Axle Connector Smooth [with x Hole + Orientation] Black Part 59443 Element 6084612 or 4512363 ×15
  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×10
  • Technic Axle and Pin Connector Angled #2 - 180° Black Part 32034 Element 6271869 or 4107783 ×8
  • Technic Axle and Pin Connector Angled #5 - 112.5° Black Part 32015 Element 6271346 or 4107084 ×2
  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 ×39
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Black Part 42003 Element 6273708 or 4200326 ×26
  • Technic Axle and Pin Connector Perpendicular Double Black Part 32291 Element 6280394 or 4140430 ×4
  • Technic Beam 1 x 15 Thick Black Part 32278 Element 4542573 or 4128603 ×4
  • Technic Beam 1 x 3 Thick Black Part 32523 Element 4142822 or 3252326 ×13
  • Technic Beam 1 x 4 Thin Black Part 32449 Element 6327548 or 4142236 ×12
  • Technic Beam 1 x 4 Thin with Stud Connector Black Part 2825 Element 6331570 or 4107136 ×2
  • Technic Beam 3 x 0.5 Liftarm with Boss and Pin / Crank Black Part 33299a Element 4156980 ×8
  • Technic Beam 3 x 3 T-Shape Thick Black Part 60484 Element 4552347 or 4535771 ×2
  • Technic Beam Triangle Thin [Type I] Black Part 2905 Element 4142543 or 290526 ×2
  • Technic Brick 1 x 12 [11 Pin Holes] Black Part 3895 Element 389526 ×3
  • Technic Gear 12 Tooth Double Bevel Black Part 32270 Element 4177431 ×7
  • Technic Gear 20 Tooth Double Bevel with Axle Hole Type 2 [X Opening] Black Part 32269 Element 4177430 ×3
  • Technic Gear Rack 1 x 7 with Axle and Pin Holes Black Part 87761 Element 6327430 or 4562009 ×4
  • Technic Link 1 x 6 with Stoppers Black Part 32005b ×4
  • Technic Pin Connector Toggle Joint Smooth Double with Axle and Pin Holes Black Part 87408 Element 6278412 or 4558692 ×1
  • Technic Pin Double with Axle Hole Black Part 32138 Element 4130597 or 4119589 ×1
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black Part 32054 Element 4140801 or 4107742 ×33
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 4 spares in the box ×227
  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Black Part 41669 Element 4540065 or 4177441 ×4
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×1
  • Tyre 56 x 26 Balloon Black Part 55976 Element 6495636 or 4297209 ×8
  • Wheel 30.4 x 20 without Pinholes, with Reinforced Rim Black Part 56145 Element 4299389 or 4284946 ×8

Light Bluish Gray 302 pieces

  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Light Bluish Gray Part 6553 Element 4211536 ×4
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×25
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×25
  • Technic Axle 7 Light Bluish Gray Part 44294 Element 44294194 or 4211805 ×7
  • Technic Axle 9 Light Bluish Gray Part 60485 Element 4535768 ×1
  • Technic Axle Connector Smooth [with x Hole + Orientation] Light Bluish Gray Part 59443 Element 4512360 ×15
  • Technic Axle Towball Light Bluish Gray Part 2736 Element 6443149 or 4211375 ×12
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Light Bluish Gray Part 32184 Element 6276969 or 4211621 ×8
  • Technic Axle and Pin Connector Perpendicular Double Split Light Bluish Gray Part 41678 Element 4211889 ×4
  • Technic Axle and Pin Connector Perpendicular Triple Light Bluish Gray Part 63869 Element 6331441 or 4538007 ×1
  • Technic Beam 1 x 11 Thick Light Bluish Gray Part 32525 Element 4611705 or 4534910 ×12
  • Technic Beam 1 x 15 Thick Light Bluish Gray Part 32278 Element 4542577 or 4211770 ×8
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Light Bluish Gray Part 60483 Element 6265089 or 6004888 ×10
  • Technic Beam 1 x 2 Thin Light Bluish Gray Part 41677 Element 6348143 or 4211741 ×8
  • Technic Beam 1 x 7 Thick Light Bluish Gray Part 32524 Element 4495930 or 4211665 ×4
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Light Bluish Gray Part 32271 Element 6276836 or 4211624 ×2
  • Technic Beam 2 x 4 L-Shape Thick Light Bluish Gray Part 32140 Element 6271831 or 4211610 ×7
  • Technic Beam 3 x 3 T-Shape Thick Light Bluish Gray Part 60484 Element 4552348 or 4535772 ×3
  • Technic Beam Frame 5 x 7 with 3 x 5 Opening Thick Light Bluish Gray Part 64179 Element 4539880 ×6
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 2 spares in the box ×35
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 3 spares in the box ×42
  • Technic Gear 16 Tooth with Round Holes [Old Style] Light Bluish Gray Part 4019 Element 4562487 or 4211563 ×3
  • Technic Gear 20 Tooth Bevel with Pin Hole Light Bluish Gray Part 87407 Element 4558690 ×1
  • Technic Gear Rack 1 x 4 Light Bluish Gray Part 3743 Element 6457283 or 4211450 ×7
  • Technic Linear Actuator with Dark Bluish Gray Ends [Original Version] Light Bluish Gray Part 61927a Element 6162391 or 4528037 ×1
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 2 spares in the box ×13
  • Technic Pin Connector Hub Perpendicular 3L with 4 Pins Light Bluish Gray Part 48989 Element 4225033 ×20
  • Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Big Squared Pin Holes] Light Bluish Gray Part 87082 Element 4560175 ×3
  • Technic Pin Connector Perpendicular 2 x 2 Bent Light Bluish Gray Part 44809 Element 4211880 ×5
  • Technic Worm Gear Light Bluish Gray Part 4716 Element 4211510 ×6
  • Wheel 11 x 8 with Center Groove Light Bluish Gray Part 42610 Element 4211758 ×1
  • Wheel 18 x 8 with Fake Bolts and Shallow Spokes Light Bluish Gray Part 56902 Element 4499259 ×3

Yellow 168 pieces

  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×4
  • Plate 1 x 8 Yellow Part 3460 Element 346024 ×6
  • Technic Axle Connector with Axle Hole Yellow Part 32039 Element 4107800 or 3203924 ×6
  • Technic Beam 1 x 11 Thick Yellow Part 32525 Element 6028107 or 4534912 ×2
  • Technic Beam 1 x 11.5 Double Bent Thick Yellow Part 32009 Element 6271150 or 6257104 ×8
  • Technic Beam 1 x 13 Thick Yellow Part 41239 Element 4522935 or 4237328 ×8
  • Technic Beam 1 x 15 Thick Yellow Part 32278 Element 4542579 or 4237445 ×6
  • Technic Beam 1 x 3 Thick Yellow Part 32523 Element 4153707 ×6
  • Technic Beam 1 x 4 Thin Yellow Part 32449 Element 6327559 or 4199345 ×16
  • Technic Beam 1 x 5 Thick Yellow Part 32316 Element 4142133 or 4128590 ×21
  • Technic Beam 1 x 5 Thin Yellow Part 32017 Element 4503425 or 4199343 ×2
  • Technic Beam 1 x 7 Thick Yellow Part 32524 Element 4495934 or 4187082 ×9
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Yellow Part 6629 Element 6524459 or 6375945 ×2
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Yellow Part 32271 Element 6276838 or 4544005 ×2
  • Technic Beam 1 x 9 Thick Yellow Part 40490 Element 6115616 or 4187136 ×7
  • Technic Beam 2 x 4 L-Shape Thick Yellow Part 32140 Element 6271828 or 4141628 ×7
  • Technic Beam 3 x 3 L-Shape Thin Yellow Part 32056 Element 6271812 or 4112289 ×4
  • Technic Beam 3 x 5 L-Shape Thick Yellow Part 32526 Element 4144022 ×16
  • Technic Brick 1 x 16 [15 Pin Holes] Yellow Part 3703 Element 370324 ×8
  • Technic Knob Wheel Yellow Part 32072 Element 6284189 or 4203493 ×4
  • Technic Panel Curved 11 x 3 with 2 Pin Holes through Panel Surface Yellow Part 62531 Element 6417857 or 6211955 ×2
  • Technic Panel Fairing #1 Small Smooth Short, Side A Yellow Part 87080 Element 6252564 or 4558879 ×2
  • Technic Panel Fairing #2 Small Smooth Short, Side B Yellow Part 87086 Element 6252566 or 4558876 ×2
  • Technic Panel Fairing #5 Long Smooth, Side A Yellow Part 64681 Element 6286376 or 4558817 ×1
  • Technic Panel Fairing #6 Long Smooth, Side B Yellow Part 64393 Element 6065491 or 4558800 ×1
  • Technic Pin Connector Round [Slotted] Yellow Part 62462 Element 6173122 or 4526983 ×4
  • Tile 1 x 4 with Groove Yellow Part 2431 Element 243124 ×4
  • Tile 1 x 8 with Groove Yellow Part 4162 Element 6388482 or 4189400 ×8

Blue 141 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×57
  • Technic Beam 1 x 3 Thin Blue Part 6632 Element 6344176 or 4107829 ×2
  • Technic Beam 3 x 5 L-Shape Thick Blue Part 32526 Element 4158923 ×6
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×76

Dark Bluish Gray 74 pieces

  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×10
  • Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×6
  • Technic Axle 8 with Stop Dark Bluish Gray Part 55013 Element 4499858 ×1
  • Technic Axle and Pin Connector Block 4 x 3 x 2 1/2 [Linear Actuator Holder] Dark Bluish Gray Part 61904 Element 6356106 or 4528038 ×1
  • Technic Beam 1 x 11 Thick Dark Bluish Gray Part 32525 Element 4603472 or 4534914 ×1
  • Technic Beam 1 x 13 Thick Dark Bluish Gray Part 41239 Element 4522937 or 4261932 ×10
  • Technic Beam 1 x 3 Thin Dark Bluish Gray Part 6632 Element 6632199 or 6364452 ×7
  • Technic Beam 1 x 9 Thick Dark Bluish Gray Part 40490 Element 4645730 or 4210757 ×8
  • Technic Beam 3 x 5 L-Shape Thick Dark Bluish Gray Part 32526 Element 4210753 ×10
  • Technic Gear 16 Tooth with Clutch [Smooth] Dark Bluish Gray Part 6542b Element 6542199 or 4237267 ×6
  • Technic Gear 24 Tooth [New Style with Single Axle Hole] Dark Bluish Gray Part 3648b Element 6133119 or 4514558 ×1
  • Technic Gear 8 Tooth Dark Bluish Gray Part 3647 Element 4514559 ×5
  • Technic Pin 3/4 Dark Bluish Gray Part 32002 Element 32002199 or 4211050 1 spare in the box ×2
  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Dark Bluish Gray Part 32530 Element 4210763 ×4
  • Technic Reel 3 x 2 Dark Bluish Gray Part 32012 Element 32012199 or 4239891 ×1
  • Technic Turntable Large Type 2, 24/56 Tooth with Black Outside Gear Section [Complete Assembly] Dark Bluish Gray Part 50163 Element 4520872 or 4235858 ×1

Red 62 pieces

  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×1
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×34
  • Technic Axle Connector Smooth [with x Hole + Orientation] Red Part 59443 Element 4513174 ×2
  • Technic Axle and Pin Connector Angled #6 - 90° Red Part 32014 Element 6268922 or 4189131 ×2
  • Technic Beam 1 x 2 Thick Red Part 43857 Element 4185664 ×1
  • Technic Beam 1 x 2 Thin Red Part 41677 Element 6371442 or 4186678 ×8
  • Technic Beam 1 x 3 Thin Red Part 6632 Element 6364451 or 4107824 ×2
  • Technic Changeover Catch - + opening Red Part 6641 Element 6099696 or 4270473 ×2
  • Technic Driving Ring 2L, 4 Ridges Red Part 6539 Element 4278957 ×2
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Red Part 32054 Element 4140806 or 4125198 ×8

Tan 11 pieces

  • Technic Axle Connector Ridged [with x Hole x Orientation] Tan Part 6538b Element 4207456 or 4140453 ×2
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×2
  • Technic Gear 12 Tooth Bevel Tan Part 6589 Element 4565452 or 4514556 ×4
  • Technic Gear 20 Tooth Double Bevel with Axle Hole Type 2 [X Opening] Tan Part 32269 Element 4514555 ×1
  • Technic Pin Long without Friction Ridges Tan Part 32556 ×2

Dark Tan 10 pieces

  • Technic Axle 3 with Stud Dark Tan Part 6587 Element 6031821 or 6013821 ×10

Trans-Orange 10 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Orange Part 54200 Element 6245265 or 4244369 1 spare in the box ×2
  • Plate 1 x 2 Trans-Orange Part 3023 Element 6514005 or 6240217 ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 2 spares in the box ×4
  • Tile 1 x 2 with Groove Trans-Orange Part 3069b Element 6514225 or 6251306 ×2

Trans-Clear 6 pieces

  • Plate 1 x 2 Trans-Clear Part 3023 Element 6514001 or 6240204 ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 2 spares in the box ×4

Trans-Red 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×2

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 8053-1 [No Color/Any Color] Part 88670 Element 4569208 ×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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