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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.

Challenger Set 350

Checking

4225 Challenger Set 350

240 pieces in 99 part and color combinations, plus 1 minifigure.

The piece count includes the 4 parts inside the set's minifigures, which this inventory lists separately. 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.

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Piece checklist

Bricks 129 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×4
  • Brick 1 x 2 Black Part 3004 Element 300426 ×4
  • Brick 1 x 4 Black Part 3010 Element 301026 ×4
  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×2
  • Brick 2 x 3 Black Part 3002 Element 300226 ×2
  • Brick 2 x 4 Black Part 3001 Element 300126 ×2
  • Brick 1 x 1 Blue Part 3005 Element 300523 ×4
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×6
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×6
  • Brick 1 x 6 Blue Part 3009 Element 300923 ×2
  • Brick 2 x 2 Blue Part 3003 Element 4103589 or 300373 ×2
  • Brick 2 x 3 Blue Part 3002 Element 300223 ×2
  • Brick 2 x 4 Blue Part 3001 Element 300173 or 300123 ×2
  • Brick 1 x 1 with Simple Eye Black and White Print Green Part 3005pr9996 Element 4107722 ×2
  • Brick 1 x 1 Red Part 3005 Element 300521 ×4
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×8
  • Brick 1 x 3 Red Part 3622 Element 362221 ×2
  • Brick 1 x 4 Red Part 3010 Element 301021 ×6
  • Brick 1 x 4 with Black Smile Print Red Part 3010pr9980 Element 4107820 ×1
  • Brick 1 x 6 Red Part 3009 Element 300921 ×2
  • Brick 1 x 8 Red Part 3008 Element 300821 ×2
  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×2
  • Brick 2 x 3 Red Part 3002 Element 300271 or 300221 ×2
  • Brick 2 x 4 Red Part 3001 Element 300121 ×2
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×4
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×6
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×6
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×2
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×2
  • Brick 2 x 3 White Part 3002 Element 6550133 or 300251 ×2
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×2
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×4
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×8
  • Brick 1 x 3 Yellow Part 3622 Element 362224 ×2
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×6
  • Brick 1 x 6 Yellow Part 3009 Element 300924 ×2
  • Brick 1 x 8 Yellow Part 3008 Element 300824 ×2
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×2
  • Brick 2 x 3 Yellow Part 3002 Element 300224 ×2
  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×2

Bricks Sloped 26 pieces

  • Brick Sloped 33° 2 x 2 Double Blue Part 3300 Element 330023 ×2
  • Brick Sloped 33° 2 x 4 Double Blue Part 3299 Element 329923 ×2
  • Brick Sloped 33° 3 x 1 Blue Part 4286 Element 428623 ×4
  • Brick Sloped 33° 3 x 2 Blue Part 3298 Element 6294307 or 6141996 ×2
  • Brick Sloped 33° 3 x 2 with Red on Yellow Triangles Print Blue Part 3298pr0005 Element 4107821 ×2
  • Brick Sloped 33° 3 x 4 Blue Part 3297 Element 6088711 or 329723 ×2
  • Brick Sloped 33° 3 x 4 with Red Triangles with Yellow Border Print Blue Part 3297pr0017 Element 4107822 ×2
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Blue Part 3747a Element 4500460 or 374723 ×2
  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Blue Part 4287a ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Yellow Part 3040b Element 4121965 or 304024 ×2
  • Brick Sloped Inverted 45° 2 x 1 Yellow Part 3665 Element 366524 ×2

Plates 18 pieces

  • Plate 1 x 6 Blue Part 3666 Element 366623 ×2
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×2
  • Plate 2 x 6 Blue Part 3795 Element 379523 ×2
  • Plate 4 x 10 Blue Part 3030 Element 303073 or 303023 ×1
  • Plate 4 x 4 Blue Part 3031 Element 4243815 or 303123 ×1
  • Plate 1 x 6 Red Part 3666 Element 366621 ×2
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×2
  • Plate 2 x 3 Red Part 3021 Element 302121 ×2
  • Plate 2 x 4 Red Part 3020 Element 302021 ×2
  • Plate 2 x 6 Red Part 3795 Element 379521 ×2

Windows and Doors 11 pieces

  • Door 1 x 4 x 5 with 4 Panes, Squared Base Blue Part 3861b Element 386123 ×1
  • Window 1 x 4 x 3 Blue Part 3853 Element 385323 ×2
  • Window 1 x 2 x 3 Shutter Green Part 3856 Element 385628 ×4
  • Window 1 x 2 x 3 Pane Yellow Part 3854 Element 385424 ×4

Wheels and Tyres 8 pieces

  • Tyre Offset Tread 24 x 8 Black Part 3483 Element 4501048 or 348326 ×4
  • Wheel Freestyle with 2 x 2 Studs and Pin Hole White Part 6248 Element 4144355 or 624801 ×4

Bricks Round and Cones 6 pieces

  • Cone 1 x 1 [No Top Groove] White Part 4589 Element 458901 ×6

Bars, Ladders and Fences 5 pieces

  • Lever Small Base with Yellow Lever Black Part 298c01 Element 74138 ×2
  • Antenna 1 x 4 with Rounded Top White Part 3957a ×1
  • Fence Lattice 1 x 4 x 1 Yellow Part 3633 Element 4190509 or 363324 ×2

Bricks Special 5 pieces

  • Brick Special 2 x 4 with Pins Dark Gray Part 6249 Element 4143669 or 4100411 ×2
  • Brick Special 1 x 1 with Headlight Red Part 4070 Element 407021 ×2
  • Brick Special 1 x 2 with Pin Yellow Part 2458 Element 245824 ×1

Plates Wedged 5 pieces

  • Wedge Plate 4 x 9 without Stud Notches Blue Part 2413 Element 241323 ×2
  • Wedge Plate 3 x 3 Cut Corner Green Part 2450 Element 6529282 or 6114672 ×2
  • Wedge Plate 3 x 6 Cut Corners Green Part 2419 Element 241928 ×1

Bricks Curved 4 pieces

  • Brick Curved 2 x 3 Green Part 6215 Element 621528 ×2
  • Brick Arch 1 x 6 x 2 - Thick Top with Reinforced Underside Yellow Part 3307 Element 330724 ×2

Hinges, Arms and Turntables 4 pieces

  • Turntable 2 x 2 Plate - Top Light Gray Part 3679 Element 367952 or 367902 ×1
  • Hinge Plate 2 x 5 with Large Hole [Complete Assembly] Red Part 3149bc01 Element 4188477 or 4106942 ×1
  • Hinge Tile 1 x 4 Red Part 4625 Element 4240360 or 462521 ×1
  • Turntable 2 x 2 Plate, Base Yellow Part 3680 Element 4667211 or 4597261 ×1

Tiles Special 4 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Yellow Part 2412b Element 241224 ×2
  • Tile Special 1 x 2 with Handle Yellow Part 2432 Element 243224 ×1
  • Tile Special 2 x 2 with Top Pin Yellow Part 2460 Element 246024 ×1

Plants & Trees 3 pieces

  • Plant, Bush 2 x 2 x 4 Green Part 6064 Element 6269009 or 606428 ×1
  • Plant, Round 1 x 1 - 3 Bamboo Leaves Green Part 30176 Element 6270003 or 6248461 ×2

Bricks Wedged 2 pieces

  • Brick Wedged, Angled 3 x 2 Left Red Part 6565 Element 6256588 or 4527765 ×1
  • Brick Wedged, Angled 3 x 2 Right Red Part 6564 Element 6256585 or 4526929 ×1

Plates Special 2 pieces

  • Plate Special 1 x 2 with Ladder Yellow Part 4175 Element 6252195 or 6186664 ×2

Transportation - Land 2 pieces

  • Seat / Chair 2 x 2 Yellow Part 4079 ×1
  • Steering Stand 1 x 2 with Black Steering Wheel Yellow Part 3829c01 Element 9553 ×1

Transportation - Sea and Air 2 pieces

  • Propeller 3 Blade 3 Diameter with Axle Cross Black Part 6041 Element 604126 ×1
  • Propeller 4 Blade 5 Diameter with Rounded Ends, Open Hub Light Gray Part 2479 Element 247902 ×1

Windscreens and Fuselage 2 pieces

  • Windscreen 1 x 4 x 1 1/3 with Bottom Hinge Trans-Clear Part 30161 Element 4109966 ×1
  • Windscreen 2 x 4 x 2 Trans-Light Blue Part 3823 Element 6581802 or 6253682 ×1

Baseplates 1 piece

  • Baseplate 8 x 16 Green Part 3865 Element 4219812 or 4179599 ×1

Flags, Banners and Signs 1 piece

  • Flag 4 x 1 Wavy [First Wave Left] Yellow Part 4495a ×1

Minifigures 1 figure

  • Timmy - Blue Legs, Red Cap Minifigure, checked as a whole figure ×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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