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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.

Pneumatic Excavator

Checking

8837 Pneumatic Excavator

255 pieces in 83 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

Plates 52 pieces

  • Plate 1 x 10 Light Gray Part 4477 Element 447702 ×2
  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×3
  • Plate 1 x 4 Light Gray Part 3710 Element 371002 ×4
  • Plate 2 x 2 Light Gray Part 3022 Element 302202 ×3
  • Plate 2 x 2 Corner Light Gray Part 2420 Element 242052 or 242002 ×2
  • Plate 2 x 3 Light Gray Part 3021 Element 302102 ×3
  • Plate 1 x 2 Red Part 3023 Element 302321 ×13
  • Plate 1 x 3 Red Part 3623 Element 362321 ×4
  • Plate 1 x 4 Red Part 3710 Element 371021 ×4
  • Plate 1 x 6 Red Part 3666 Element 366621 ×4
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×4
  • Plate 2 x 2 Corner Red Part 2420 Element 242071 or 242021 ×6

Technic Bricks 38 pieces

  • Technic Brick 1 x 10 [9 Pin Holes] Light Gray Part 2730 Element 273002 ×2
  • Technic Brick 1 x 12 [11 Pin Holes] Light Gray Part 3895 Element 4195006 or 389502 ×5
  • Technic Brick 1 x 2 [1 Pin Hole] Light Gray Part 3700 Element 370002 ×5
  • Technic Brick 1 x 4 [3 Pin Holes] Light Gray Part 3701 Element 370102 ×4
  • Technic Brick 1 x 10 [9 Pin Holes] Red Part 2730 Element 273021 ×4
  • Technic Brick 1 x 12 [11 Pin Holes] Red Part 3895 Element 389521 ×1
  • Technic Brick 1 x 16 [15 Pin Holes] Red Part 3703 Element 370321 ×4
  • Technic Brick 1 x 2 [1 Pin Hole] Red Part 3700 Element 370021 ×7
  • Technic Brick 1 x 4 [3 Pin Holes] Red Part 3701 Element 370121 ×6

Technic Pins 35 pieces

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×27
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×1
  • Technic Pin 1/2 without Friction Ridges Light Gray Part 4274 Element 427402 ×2
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×5

Technic Bushes 22 pieces

  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 ×8
  • Technic Bush 1/2 Toothed Type II [X Opening] Light Gray Part 4265b Element 4100501 or 657702 ×14

Technic Axles 21 pieces

  • Technic Axle 10 Black Part 3737 Element 373726 ×1
  • Technic Axle 12 Black Part 3708 Element 370826 ×1
  • Technic Axle 2 Black Part 3704 Element 370426 ×5
  • Technic Axle 3 Black Part 4519 Element 6238084 or 451926 ×5
  • Technic Axle 4 Black Part 3705 Element 370526 ×3
  • Technic Axle 6 Black Part 3706 Element 370626 ×5
  • Technic Axle 8 Black Part 3707 Element 370726 ×1

Tubes and Hoses 21 pieces

  • Hose, Pneumatic 4mm D. 10L / 8cm Black Part 5102c10 Element 6217913 ×1
  • Hose, Pneumatic 4mm D. 12.5L / 10cm Black Part 5102c12.5 ×1
  • Hose, Pneumatic 4mm D. 15L / 12cm Black Part 5102c15 ×2
  • Hose, Pneumatic 4mm D. 26.25L / 21cm Black Part 5102c26.25 ×1
  • Hose, Pneumatic 4mm D. 27.5L / 22cm Black Part 5102c27.5 ×1
  • Hose, Pneumatic 4mm D. 30L / 24.0cm Black Part 5102c30 Element 6119444 ×1
  • Hose, Pneumatic 4mm D. 32.5L / 26cm Black Part 5102c32.5 ×1
  • Hose, Pneumatic 4mm D. 8.75L / 7cm Black Part 5102c08.75 ×4
  • Hose Rigid 3mm D. 10L / 8.0cm Dark Gray Part 75c10 Element 4173690 ×2
  • Hose Rigid 3mm D. 7L / 5.6cm Dark Gray Part 75c07 ×2
  • Hose, Pneumatic 4mm D. 10L / 8cm Trans-Clear Part 5102c10 ×1
  • Hose, Pneumatic 4mm D. 2.5L / 2cm Trans-Clear Part 5102c02.5 ×1
  • Hose, Pneumatic 4mm D. 5L / 4cm Trans-Clear Part 5102c05 ×2
  • Hose, Pneumatic 4mm D. 7.5L / 6cm Trans-Clear Part 5102c07.5 ×1

Tiles Special 9 pieces

  • Tile Special 1 x 1 with Clip and Straight Tips Light Gray Part 2555 Element 255502 ×8
  • Tile Special 2 x 2 with Top Pin Light Gray Part 2460 Element 246002 ×1

Technic Beams 8 pieces

  • Technic Beam 1 x 4 Thin with Stud Connector Black Part 2825 Element 6331570 or 4107136 ×4
  • Technic Beam Triangle Thin [Type I] Black Part 2905 Element 4142543 or 290526 ×2
  • Technic Beam 1 x 4 Thin with Stud Connector Light Gray Part 2825 Element 4107133 or 282502 ×2

Wheels and Tyres 8 pieces

  • Tyre 24 x 13 Model Team Black Part 2696 Element 269676 or 269626 ×4
  • Wheel 30 x 13 Model Team White Part 2695 Element 4507077 or 4240315 ×4

Hinges, Arms and Turntables 6 pieces

  • Hinge Plate 1 x 2 with 2 Fingers and Hollow Studs Light Gray Part 4276b Element 427602 ×2
  • Hinge Plate 1 x 2 with 3 Fingers [Hollow Studs] Light Gray Part 4275b Element 427502 ×2
  • Hinge Plate 1 x 6 with 2 and 3 Fingers On Ends Light Gray Part 4504 Element 450402 ×2

Plates Special 6 pieces

  • Plate Special 2 x 2 with Pin on Bottom Light Gray Part 2476a Element 4237081 or 4170323 ×1
  • Technic Plate 2 x 8 [7 Holes] Light Gray Part 3738 Element 373802 ×2
  • Technic Plate 2 x 4 [3 Holes] Red Part 3709 Element 370921 ×2
  • Technic Plate 2 x 8 [7 Holes] Red Part 3738 Element 373821 ×1

Pneumatics 6 pieces

  • Pneumatic Switch with Top Studs Light Gray Part 75215 Element 4190775 or 75215 ×2
  • Pneumatic T-Piece (T Bar) [Old Style] Light Gray Part 4697a ×1
  • Pneumatic Cylinder 1 x 5 with 2 Inlets Yellow Part 74981 Element 6005292 or 4625540 ×1
  • Pneumatic Cylinder with 2 Inlets Medium (48mm) with Black Top Yellow Part 2793c01 Element 4190836 or 74721 ×1
  • Pneumatic Pump New Style with Black Top Yellow Part 2797c02 Element 4563134 or 74720 ×1

Technic Gears 6 pieces

  • Technic Gear 16 Tooth with Round Holes [Old Style] Light Gray Part 4019 Element 4107176 or 401902 ×1
  • Technic Gear 24 Tooth Crown with Reinforcements [New Style] Light Gray Part 3650c Element 365002 ×1
  • Technic Gear 8 Tooth Light Gray Part 3647 Element 364702 ×3
  • Technic Turntable Large Type 1, 56 Tooth [Complete Assembly] Light Gray Part 2856c01 Element 74643 ×1

Technic Special 5 pieces

  • Technic Digger Bucket 4 x 4 x 9 with 3 teeth Black Part 2950 Element 4562379 or 4248956 ×1
  • Technic Plate 1 x 4 with Toothed Ends Black Part 4263 Element 4251466 or 4225509 ×2
  • Technic Plate 1 x 8 with Toothed Ends Light Gray Part 4442 Element 444252 or 444202 ×2

Technic Steering, Suspension and Engine 3 pieces

  • Technic Steering Arm Light Gray Part 4261 Element 4225506 or 4189316 ×2
  • Technic Steering Rack Light Gray Part 2790 Element 4143357 or 279102 ×1

Bricks Sloped 2 pieces

  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×2

Tiles 2 pieces

  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×2

Bricks Round and Cones 1 piece

  • Brick Round 2 x 2 with Axle Hole Trans-Yellow Part 3941 Element 6514285 or 6273155 ×1

Panels 1 piece

  • Panel 1 x 2 x 3 - Solid Studs Red Part 2362a Element 4113024 ×1

Plates Round Curved and Dishes 1 piece

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Yellow Part 4032a Element 403224 ×1

Supports, Girders and Cranes 1 piece

  • Hook, Technic - Large Black Part 70496 Element 70644 ×1

Tiles Round and Curved 1 piece

  • Tile Round 2 x 2 with Bottom Cross Yellow Part 4150 Element 415074 or 415024 ×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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