BlockTalk Find Your Set

Free tool

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.

Mining 4 x 4

Checking

4200 Mining 4 x 4

97 pieces in 55 part and color combinations, plus 1 minifigure.

The official piece count includes the 5 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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

Show

Piece checklist

Plates 16 pieces

  • Plate 1 x 4 Black Part 3710 Element 371026 ×3
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×2
  • Plate 1 x 1 Trans-Orange Part 3024 Element 6513961 or 6252040 ×2
  • Plate 1 x 2 Trans-Red Part 3023 Element 6514003 or 6240212 ×2
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×4
  • Plate 1 x 6 Yellow Part 3666 Element 366624 ×2
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×1

Bricks Sloped 10 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 1 spare in the box Also in Dark Bluish Gray ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 1 spare in the box Also in Black ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Clear Part 54200 Element 6245250 or 4244362 1 spare in the box ×2
  • Brick Sloped Inverted 45° 6 x 1 Double with 1 x 4 Recessed Yellow Part 52501 Element 6268918 or 4503844 ×2

Plates Round Curved and Dishes 10 pieces

  • Dish 2 x 2 Inverted [Radar] Dark Bluish Gray Part 4740 Element 4211010 ×2
  • Plate Round 1 x 1 with Solid Stud Light Bluish Gray Part 6141 Element 4211525 1 spare in the box ×6
  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 1 spare in the box ×2

Wheels and Tyres 8 pieces

  • Tyre 21 x 12 with Offset Tread Small Wide and Beveled Tread Edge Black Part 60700 Element 4514560 ×4
  • Wheel 11 x 12 with Hole Notched for Wheels Holder Pin White Part 6014b Element 4170457 ×4

Transportation - Land 7 pieces

  • Steering Stand 1 x 2 with Black Steering Wheel Blue Part 3829c01 Element 9566 ×1
  • Vehicle Base 4 x 12 x 3/4 with 4 x 2 Recessed Center with Smooth Underside Dark Bluish Gray Part 52036 Element 4259673 ×1
  • Wheel Arch, Mudguard 4 x 2 1/2 x 1 Dark Bluish Gray Part 98282 Element 6170503 or 4646522 ×4
  • Seat / Chair 2 x 2 with Center Sprue Mark Red Part 4079b Element 407921 ×1

Bricks 6 pieces

  • Brick 1 x 2 x 2 with Inside Stud Holder Light Bluish Gray Part 3245c Element 4211564 ×2
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×1
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×2
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×1

Bricks Special 6 pieces

  • Brick Special 2 x 4 - 1 x 4 with 2 Recessed Studs and Thin Side Arches Dark Bluish Gray Part 14520 Element 6066119 ×2
  • Brick Special 1 x 1 with Headlight Yellow Part 4070 Element 407024 ×2
  • Brick Special 1 x 2 with Vertical Clip [Thick U Clip] Yellow Part 30237a ×2

Plates Special 6 pieces

  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Black Part 61252 Element 6308000 or 4517925 ×1
  • Plate Special 2 x 2 with Wheels Holder Wide Black Part 6157 Element 615726 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Light Bluish Gray Part 3794b ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Red Part 2540 Element 4140585 or 254021 ×1

Tiles 6 pieces

  • Tile 1 x 1 with White and Red Gauge Print Light Bluish Gray Part 3070bpr0007 Element 4255629 1 spare in the box ×1
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×1
  • Tile 1 x 1 with Groove Trans-Red Part 3070b Element 6581817 or 6254248 1 spare in the box ×2
  • Tile 1 x 2 with Groove Yellow Part 3069b Element 306924 ×2

Rock 4 pieces

  • Rock Boulder 4 x 4, Bottom Dark Bluish Gray Part 30294 Element 4506779 ×1
  • Rock Boulder 4 x 4, Top Dark Bluish Gray Part 30293 Element 4506778 ×1
  • Rock 1 x 1 Crystal 5 Point Pearl Gold Part 30385 Element 6174085 or 4516816 ×2

Bars, Ladders and Fences 2 pieces

  • Bar 1 x 4 x 2 with Studs Black Part 4083 Element 408326 ×1
  • 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

Minifig Shields, Weapons, & Tools 2 pieces

  • Tool Jackhammer / Motor Hammer Dark Bluish Gray Part 30228 Element 4261117 or 4211083 ×1
  • Tool Pickaxe Dark Bluish Gray Part 3841 Element 4211007 ×1

Panels 2 pieces

  • Panel 1 x 4 x 1 with Rounded Corners [Thin Wall] Yellow Part 15207 Element 6092648 ×2

Windows and Doors 2 pieces

  • Door 1 x 3 x 1 Left Yellow Part 3822 Element 6587460 or 4190511 ×1
  • Door 1 x 3 x 1 Right Yellow Part 3821 Element 6587459 or 4537985 ×1

Bricks Curved 1 piece

  • Brick Curved 2 x 4 x 2/3 No Studs, with Bottom Tubes Yellow Part 88930 Element 4597902 or 4549089 ×1

Bricks Round and Cones 1 piece

  • Brick Round 1 x 1 Open Stud Red Part 3062b Element 306221 ×1

Bricks Wedged 1 piece

  • Brick Wedged, Curved Triple 4 x 4 x 2/3, 2 Studs Yellow Part 45677 Element 6492532 or 4193073 ×1

Containers 1 piece

  • Box / Crate with Handholds 3 x 4 x 1 2/3 Reddish Brown Part 30150 Element 4211185 ×1

Flags, Banners and Signs 1 piece

  • Road Sign Clip-on 2.2 x 2.667 Triangular Light Bluish Gray Part 30259 Element 4211886 ×1

Minifig Accessories 1 piece

  • Equipment Dynamite Sticks Red Part 64728 Element 6270088 or 4538780 ×1

Pneumatics 1 piece

  • Pneumatic T-Piece (T Bar) [New Style] Light Bluish Gray Part 4697b Element 4211508 1 spare in the box ×1

Stickers 1 piece

  • Sticker Sheet for Set 4200-1 [No Color/Any Color] Part 10010484 Element 6004715 ×1

Tiles Special 1 piece

  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 3 x 4 x 1 1/3 Large Glass Surface Trans-Brown Part 57783 Element 6507931 or 6247359 ×1

Minifigures 1 figure

  • Miner, Dark Red Flannel Shirt, Mining Hat, Goatee Beard and Goggles 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.

We value your privacy

We use cookies 🍪 for analytics and to improve your experience. Read our privacy policy