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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.

Burlington Northern Santa Fe Locomotive

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10133 Burlington Northern Santa Fe Locomotive

400 pieces in 100 part and color combinations, plus 2 minifigures.

LEGO counts 407 pieces. This inventory comes from a separate parts catalog and lists 409, including the 9 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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

Black 149 pieces

  • Arm Mechanical with 2 Clips [Battle Droid] Black Part 30377 Element 6330086 or 4223247 1 spare in the box ×14
  • Bar 4L (Lightsaber Blade / Wand) Black Part 30374 Element 6116604 or 4140303 ×2
  • Brick 1 x 2 Black Part 3004 Element 300426 ×1
  • Brick 1 x 4 Black Part 3010 Element 301026 ×1
  • Brick 2 x 4 Black Part 3001 Element 300126 ×4
  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×8
  • Brick Special 1 x 4 with 4 Studs on One Side Black Part 30414 Element 4162443 ×2
  • Brick Special 2 x 4 x 2 with Studs on Sides Black Part 2434 Element 4494850 or 4201520 ×1
  • Brick Wedged, Curved Triple 4 x 4 x 2/3, 2 Studs Black Part 45677 Element 4191191 ×1
  • Hose Rigid 3mm D. 19L / 15.2cm Black Part 75c19 Element 6024272 or 4207524 ×2
  • Magnet Cylindrical Black Part 73092 Element 73092 ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×10
  • Plate 1 x 4 Black Part 3710 Element 371026 ×12
  • Plate 1 x 6 Black Part 3666 Element 366626 ×6
  • Plate 1 x 8 Black Part 3460 Element 346026 ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 ×2
  • Plate 2 x 3 Black Part 3021 Element 302126 ×5
  • Plate 2 x 4 Black Part 3020 Element 302026 ×3
  • Plate 4 x 6 Black Part 3032 Element 303226 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Black Part 2540 Element 4140588 or 254026 ×12
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×7
  • Plate Special 1 x 2 with Door Rail Black Part 32028 Element 4107761 ×8
  • Plate Special 1 x 6 with Train Wagon End Fence Black Part 6583 Element 6271649 or 658326 ×2
  • Plate Special 4 x 4, Studs on One Edge Plain] Black Part 6179 Element 617926 ×1
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×3
  • Technic Disc 3 x 3 Black Part 2723 Element 4218868 or 4121619 ×3
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×6
  • Tile Special 1 x 1 with Clip and Straight Tips Black Part 2555 Element 255526 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×20
  • Tile Special 6 x 4 with Beveled Edges and 5mm Pin (Train Bogie Plate) Black Part 4025 Element 6096842 or 6051914 ×2
  • Train Buffer Beam with Rectangular Buffers and Plow Black Part 45708 Element 4195776 ×2
  • Train Coupling New Black Part 2920 Element 4299239 or 292076 ×2

Dark Green 95 pieces

  • Brick 1 x 2 Dark Green Part 3004 Element 6618072 or 4245570 ×12
  • Brick 1 x 3 Dark Green Part 3622 Element 6609902 or 4252318 ×3
  • Brick 1 x 4 Dark Green Part 3010 Element 6618074 or 4245571 ×4
  • Brick 1 x 6 Dark Green Part 3009 Element 6047258 or 4249167 ×6
  • Brick 2 x 4 Dark Green Part 3001 Element 4260493 ×1
  • Brick Curved 2 x 2, Two Top Studs Dark Green Part 30165 Element 4264413 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Green Part 54200 Element 6618111 or 4504375 ×4
  • Brick Sloped 45° 2 x 3 Dark Green Part 3038 Element 4528779 or 4264399 ×2
  • Brick Sloped 45° 2 x 4 Dark Green Part 3037 Element 4264401 ×2
  • Brick Special 1 x 2 with Grille Dark Green Part 2877 Element 6618071 or 6484030 ×11
  • Brick Special 1 x 4 with 4 Studs on One Side Dark Green Part 30414 Element 6626280 or 6055239 ×3
  • Brick Wedged, Angled 3 x 2 Left Dark Green Part 6565 Element 4264403 ×2
  • Brick Wedged, Angled 3 x 2 Right Dark Green Part 6564 Element 4264402 ×2
  • Door 1 x 3 x 1 Left Dark Green Part 3822 Element 4264412 ×2
  • Door 1 x 3 x 1 Right Dark Green Part 3821 Element 4264410 ×3
  • Plate 1 x 10 Dark Green Part 4477 Element 4251662 ×4
  • Plate 1 x 2 Dark Green Part 3023 Element 6618076 or 6013797 ×11
  • Plate 1 x 3 Dark Green Part 3623 Element 6618081 or 6013975 ×2
  • Plate 1 x 4 Dark Green Part 3710 Element 6618083 or 6020923 ×6
  • Plate 1 x 8 Dark Green Part 3460 Element 4264408 ×2
  • Plate 2 x 4 Dark Green Part 3020 Element 6618075 or 4586057 ×5
  • Plate 4 x 6 Dark Green Part 3032 Element 6266737 or 4252317 ×3
  • Tile 1 x 4 with Groove Dark Green Part 2431 Element 4543949 or 4248267 ×2
  • Tile 2 x 2 with Groove Dark Green Part 3068b Element 6618078 or 4528778 ×1

Orange 61 pieces

  • Brick 1 x 2 Orange Part 3004 Element 4613981 or 4121739 ×10
  • Brick 1 x 4 Orange Part 3010 Element 4118827 ×2
  • Brick 1 x 6 Orange Part 3009 Element 4189007 or 4162760 ×5
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Orange Part 54200 Element 4504371 or 4248195 ×6
  • Brick Sloped 45° 2 x 4 Orange Part 3037 Element 4653658 or 4195424 ×2
  • Brick Special 1 x 1 with Headlight Orange Part 4070 Element 4521571 or 4212455 ×2
  • Plate 1 x 2 Orange Part 3023 Element 4177932 or 4163009 ×7
  • Plate 1 x 3 Orange Part 3623 Element 6147047 or 4513281 ×2
  • Plate 1 x 4 Orange Part 3710 Element 4118782 ×8
  • Plate 1 x 6 Orange Part 3666 Element 4173332 or 4122466 ×6
  • Plate Special 1 x 2 with Door Rail Orange Part 32028 Element 6021787 or 4521364 ×4
  • Technic Brick 1 x 2 [1 Pin Hole] Orange Part 3700 Element 6136553 or 4160555 ×1
  • Window 1 x 2 x 2 Plane, Solid Studs Orange Part 2377 Element 4264098 ×6

Light Bluish Gray 41 pieces

  • Bracket 1 x 2 - 1 x 4 [Square Corners] Light Bluish Gray Part 2436 Element 4282740 or 4211358 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Light Bluish Gray Part 6091 Element 6285778 or 4211519 ×12
  • Minifig Head [Plain] [Blocked Open Stud] Light Bluish Gray Part 3626b Element 4568890 ×4
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×4
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×4
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×4
  • Plate 2 x 6 Light Bluish Gray Part 3795 Element 4211452 or 3795194 ×1
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×4
  • Train Motor Decorative Side 10 x 2 x 2 with Closed Hub Points (for 9V Train Motor) Light Bluish Gray Part 2871a Element 4211776 ×2
  • Wheel Holder, Train with Wheels [Complete Assembly] Light Bluish Gray Part 2878c01 Element 4255636 ×4

Yellow 35 pieces

  • Brick Wedged, Curved Triple 4 x 4 x 2/3, 2 Studs Yellow Part 45677 Element 6492532 or 4193073 ×1
  • Plate 1 x 10 Yellow Part 4477 Element 6079138 or 6078095 ×2
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×12
  • Plate 1 x 6 Yellow Part 3666 Element 366624 ×5
  • Plate 1 x 8 Yellow Part 3460 Element 346024 ×1
  • Plate 2 x 10 Yellow Part 3832 Element 383224 ×2
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×3
  • Plate 2 x 2 Corner Yellow Part 2420 Element 242074 or 242024 ×2
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×2
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×2
  • Tile 1 x 6 with Groove Yellow Part 6636 Element 6388488 or 663624 ×2
  • Vehicle Base, Train 6 x 28 with Two 1 x 2 Openings [3 Round Holes Each End] Yellow Part 4093a ×1

Trans-Clear 7 pieces

  • Glass for Window 1 x 2 x 2 Plane Trans-Clear Part 4862 Element 4174748 or 486240 ×6
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 2 spares in the box ×1

Dark Bluish Gray 6 pieces

  • Brick Round 2 x 2 with Axle Hole Dark Bluish Gray Part 3941 Element 4249139 ×3
  • Equipment Radio [Extended Handle, Compact Speaker Grille] Dark Bluish Gray Part 3962b Element 4211116 ×2
  • Tile 1 x 4 with Train Controls Print Dark Bluish Gray Part 2431pr0028 Element 6020825 or 4215740 ×1

Chrome Silver 2 pieces

  • Horn / Car Air Horn Chrome Silver Part 71182 Element 4161127 or 4129931 ×2

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

Blue 1 piece

  • Seat / Chair 2 x 2 Blue Part 4079 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 10133-1 [No Color/Any Color] Part 53049 Element 4263304 ×1

Minifigures 2 figures

  • Conductor - Dark Blue Jacket, Dark Blue Legs, Dark Red Hat, Glasses Minifigure, checked as a whole figure ×1
  • Train Machinist - White Torso, Blue Overall, Blue Hat, Red Scarf 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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