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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.

Tech Machines Set

Checking

9203-2 Tech Machines Set

122 pieces in 42 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

Duplo, Quatro and Primo 107 pieces

  • Duplo Toolo Brick 2 x 4 with Holes on Sides and Top and 1 Screw in Top Black Part 31184c01 Element 4142166 or 4141849 ×7
  • Duplo Toolo Brick 4 x 6 with Holes on Sides and Top and 3 Screws in Top Black Part 86599 Element 6182798 or 4538987 ×5
  • Duplo Toolo Tyre (Tire) with Deep Tread Black Part 44970 Element 4186713 ×12
  • Duplo Tread, Thick Cleats Black Part 71981 Element 4141820 ×2
  • Duplo Winch Stand Black Part 4654 Element 4141872 ×1
  • Duplo Toolo Cockpit 4 x 6 Blue Part 31196c01 Element 6182723 or 4538984 ×1
  • Duplo Toolo Wings with 2 x 4 Brick Center Blue Part 45117c01 Element 4538972 or 4188644 ×2
  • Duplo Toolo Arm 2 x 6 with Triangular Set Screw and Clip Ends Dark Gray Part 74847 Element 4142369 or 4142030 ×8
  • Duplo Toolo Brick 2 x 2 with Angled Bracket with Forks and Two Screws, Holes at Side Dark Gray Part 45202 Element 4188429 ×7
  • Duplo Toolo Brick 2 x 2 with Holes and Clip on Bottom Dark Gray Part 74957 Element 4188719 ×3
  • Duplo Toolo Brick 2 x 4 with Holes on Sides and Top and 1 Screw in Top Dark Gray Part 31184c01 Element 4142167 or 4141850 ×4
  • Duplo Toolo Cabin Bottom Green Part 6293 Element 4188735 or 4188734 ×1
  • Duplo Toolo Scoop 6 x 4 x 3 Green Part 6294 Element 4188733 ×2
  • Duplo Toolo Wheel with Action Wheeler Screw Light Gray Part 31350c01 Element 4205135 or 4142504 ×16
  • Duplo Toolo Cockpit 4 x 6 Orange Part 31196c01 Element 6182786 or 4538986 ×1
  • Duplo Toolo Digger Bucket with 3 teeth Orange Part 6310 Element 4508937 or 4188815 ×1
  • Duplo Toolo Drill Bit, with Pearl Light Gray End Orange Part 45138c01 Element 4186714 ×1
  • Duplo Toolo Scoop 6 x 4 x 3 Orange Part 6294 Element 4188816 ×2
  • Duplo Fuel Container 1 x 2 x 2 Pearl Light Gray Part 45141 Element 4281200 or 4189248 ×2
  • Duplo Toolo Arm with Fake Pulley and Hook Pearl Light Gray Part 6295 Element 4185717 ×1
  • Duplo Toolo Exhaust Pipe Pearl Light Gray Part 4433c01 Element 4185730 ×6
  • Duplo Toolo Propeller Small with Yellow Center Screw Pearl Light Gray Part 6669c01 Element 4186395 ×2
  • Duplo Toolo, Propeller, 3 Blades Pearl Light Gray Part 86601 Element 4205920 ×3
  • Duplo Winch Drum, Black Thin Rotating Hook with Stud Case, String Pearl Light Gray Part 4653c03 ×1
  • Duplo Windscreen Roll Cage Pearl Light Gray Part 45146 Element 4189250 ×2
  • Duplo Toolo Brick 2 x 4 with Holes on Sides and Top and 1 Screw in Top Red Part 31184c01 Element 6182720 or 4538976 ×1
  • Duplo Toolo Rear Spoiler Red Part 31239c01 Element 4142533 ×3
  • Duplo Toolo Tool Screwdriver Red Part 74864 Element 6074883 or 6047910 ×5
  • Duplo Toolo Wings with 2 x 4 Brick Center Red Part 45117c01 Element 4538973 or 4188720 ×2
  • Duplo Windscreen 4 x 4 x 2 Curved Trans-Yellow Part 17562 Element 6352121 or 6073604 ×1
  • Duplo Toolo Cockpit 4 x 6 Yellow Part 31196c01 Element 6182782 or 4538985 ×1
  • Duplo Toolo Tipper Bucket Yellow Part 6311 Element 4177718 ×1

Non-Buildable Figures (Duplo, Fabuland, etc) 6 pieces

  • Duplo Figure, Early, Cap Blue, Orange Legs with Belt, Pen, Chain, Radio, and Wrench Print (Action Wheeler) Blue Part 76399pr0011 Element 4192454 ×1
  • Duplo Figure, Early, Aviator Hat Brown with Silver Goggles, Dark Gray Legs, Jumpsuit with Zipper, Red Parachute Straps, Yellow And Black Hazard Stripes Print Brown Part 74509pr0016 Element 4192562 ×1
  • Duplo Figure, Early, Aviator Hat Blue with Silver Visor, Dark Gray Legs, Dark Gray Jumpsuit, Blue Arms Print (Action Wheeler) Dark Gray Part 74509pr0026 Element 4192563 ×1
  • Duplo Figure, Early, Cap Yellow, Green Legs, Vest with Zipper, Pockets and Radio, Utility Belt with Silver Buckle, Screwdriver and Wrench Print Green Part 76399pr0006 Element 4192452 ×1
  • Duplo Figure, Early, Cap Red, Blue Legs, Shirt with Pockets and Wrench, Belt with Silver Buckle, Sunglasses and Beard Print Red Part 76399pr0005 Element 4192453 ×2

Tubes and Hoses 5 pieces

  • Hose, Ribbed 7mm D. 2L / 1.6cm Pearl Light Gray Part 78c02 Element 4495192 or 4275384 ×5

Non-System Parts 4 pieces

  • Backdrop for Set 9203-1 - Mountain and Rocks [No Color/Any Color] Part cardupn0093pr0001 ×1
  • Backdrop for Set 9203-1 - Plane [No Color/Any Color] Part cardupn0093pr0002 ×1
  • Backdrop for Set 9203-1 - Road [No Color/Any Color] Part cardupn0093pr0003 ×1
  • Backdrop for Set 9203-1 - Yard [No Color/Any Color] Part cardupn0093pr0004 ×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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