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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.

Passenger Train

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7938 Passenger Train

657 pieces in 118 part and color combinations, plus 3 minifigures.

The piece count includes the 12 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.

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Piece checklist

Red 195 pieces

  • Brick 1 x 1 Red Part 3005 Element 300521 ×44
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×40
  • Brick 1 x 6 Red Part 3009 Element 300921 ×27
  • Brick 1 x 8 Red Part 3008 Element 300821 ×4
  • Brick 2 x 6 Red Part 2456 Element 4181138 or 245621 ×2
  • Brick Arch 1 x 6 Raised Arch Red Part 92950 Element 6436416 or 4620762 ×3
  • Brick Curved 6 x 1 Red Part 42022 Element 4160390 ×4
  • Brick Curved 8 x 6 x 2 Double Red Part 45411 Element 4585977 or 4193848 ×7
  • Brick Sloped 33° 3 x 1 Red Part 4286 Element 428621 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×12
  • Brick Wedged 2 x 2 Facet Red Part 87620 Element 4581525 ×4
  • Plate 1 x 2 Red Part 3023 Element 302321 Also in Trans-Red ×8
  • Plate Special 1 x 2 with Ladder Red Part 4175 Element 6285246 or 6179575 ×4
  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×28
  • Window 1 x 2 x 3 Flat Front Red Part 60593 Element 6468353 or 6132807 ×4

Black 125 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×12
  • Brick 1 x 16 Black Part 2465 Element 246576 or 246526 ×2
  • Brick 1 x 2 Black Part 3004 Element 300426 ×10
  • Brick 2 x 3 Black Part 3002 Element 300226 ×2
  • Brick 2 x 4 Black Part 3001 Element 300126 ×3
  • Brick Arch 1 x 4 Black Part 3659 Element 365926 ×4
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Black Part 6091 Element 6383142 or 6184784 ×8
  • Brick Curved 2 x 2, Two Top Studs Black Part 30165 Element 4200023 or 4113231 ×1
  • Brick Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×4
  • Brick Sloped 33° 3 x 2 Black Part 3298 Element 329826 ×2
  • Brick Sloped 45° 2 x 2 with Complex Control Panel with Red and Green Lamps Print Black Part 3039pr0015 Element 4551168 ×2
  • Dish 2 x 2 Inverted [Radar] Black Part 4740 Element 474026 ×2
  • Hinge Cylinder 1 x 3 Locking with 1 Finger and 2 Fingers On Ends, with Hole, 9 Teeth Black Part 30554b Element 4507820 or 4143246 ×2
  • Motor, Train Base, RC Train with PF Cable, Orange Wheel Holders Black Part 87574 Element 6207390 or 6124610 ×1
  • Panel 1 x 4 x 3 [Side Supports / Hollow Studs] Black Part 60581 Element 4558209 or 421526 Also in Trans-Brown ×8
  • Plate 2 x 4 Black Part 3020 Element 302026 ×9
  • Plate 4 x 10 Black Part 3030 Element 303076 or 303026 ×1
  • Technic Axle 6 Black Part 3706 Element 370626 ×4
  • Technic Brick 1 x 10 [9 Pin Holes] Black Part 2730 Element 273026 ×2
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×4
  • Train Buffer with Sealed Magnets [Type 2 with Flat Bottom] Black Part 91968c01 Element 6125770 or 4589495 ×4
  • Train Motor Decorative Side 10 x 2 x 2 with Open Hub Points (for RC Train Motor) [Stepped Edges] Black Part 2871b Element 4493326 or 287126 ×4
  • Train Pantograph Shoe with Locking Hinge with 2 Fingers Black Part 2922 Element 4198998 or 4164405 ×2
  • Train Wheel RC Train Black Part 57878 Element 4496343 ×16
  • Train Wheel Spoked with Technic Axle Hole and Rubber Friction Band Black Part 57999 Element 6527255 or 6284110 ×8
  • Wheel Holder, Train Wheel RC Train Black Part 2878 Element 4207399 or 287876 ×8

Light Bluish Gray 106 pieces

  • Battery Box, Power Functions, with Dark Bluish Gray Bottom [Non-Rechargeable] Light Bluish Gray Part 64228 Element 6197414 or 6116239 ×1
  • Brick 1 x 6 Light Bluish Gray Part 3009 Element 4211393 ×1
  • Brick Arch 1 x 4 x 2 Light Bluish Gray Part 6182 Element 6031056 or 4225119 ×4
  • Brick Special 1 x 2 with Vertical Clip [Open O Clip] Light Bluish Gray Part 30237b Element 6320297 or 4641682 ×1
  • Brick Special 2 x 2 with 2 Pins and Axle Hole Light Bluish Gray Part 30000 Element 6356172 or 4211752 ×2
  • Control Unit, Power Functions, IR Speed Remote Control with Dark Bluish Gray Bottom Light Bluish Gray Part 64227 Element 6125771 or 6019910 ×1
  • Hinge Cylinder 1 x 2 Locking with 1 Finger and Axle Hole On Ends Light Bluish Gray Part 30552 Element 4211679 ×1
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Light Bluish Gray Part 44302a Element 4211804 ×3
  • Hinge Plate 1 x 4 Locking Dual 1 Finger Light Bluish Gray Part 44568 Element 6276045 or 4211840 ×2
  • Hinge Tile 1 x 3 Locking with 1 Finger on Top Light Bluish Gray Part 44300 Element 4211802 ×4
  • Plate 1 x 10 Light Bluish Gray Part 4477 Element 4251149 or 4211495 ×1
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×10
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×3
  • Receiver Unit, IR, Power Functions, with V2 Print Light Bluish Gray Part 58123b Element 6034993 or 6020087 ×1
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 3 spares in the box ×12
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×22
  • Tile 1 x 8 with Groove Light Bluish Gray Part 4162 Element 4211481 ×8
  • Tile 2 x 4 with Groove Light Bluish Gray Part 87079 Element 4560183 ×9
  • Tile Round 2 x 2 with Fine Mesh Grill Print Light Bluish Gray Part 4150pr0022 Element 4221881 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×16
  • Tile Special 1 x 2 with Handle Light Bluish Gray Part 2432 Element 4211357 ×3

Dark Bluish Gray 82 pieces

  • Brick 1 x 4 Dark Bluish Gray Part 3010 Element 4211103 ×6
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Dark Bluish Gray Part 61409 Element 4540386 or 4521185 ×16
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Dark Bluish Gray Part 3747b Element 4211064 ×2
  • Brick Sloped Inverted 45° 2 x 2 Double Convex Dark Bluish Gray Part 3676 Element 4210862 ×4
  • Brick Sloped Inverted 45° 6 x 4 Double with 4 x 4 Recessed and 3 Holes Dark Bluish Gray Part 60219 Element 4549999 ×4
  • Brick Special 1 x 2 with Grille Dark Bluish Gray Part 2877 Element 4210636 ×4
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×2
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×4
  • Plate 4 x 6 Dark Bluish Gray Part 3032 Element 4211115 or 3032199 ×2
  • Plate 6 x 8 Dark Bluish Gray Part 3036 Element 4210794 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Bluish Gray Part 87580 Element 6126083 or 4565322 ×4
  • Vehicle Track, Train Flexible Segment Dark Bluish Gray Part 64022 Element 4535745 ×16
  • Vehicle Track, Train, Plastic (RC Trains) Curved Dark Bluish Gray Part 53400 Element 4279717 ×16

Yellow 29 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Yellow Part 54200 Element 4504381 or 4283095 2 spares in the box ×4
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×1
  • Plate 1 x 8 Yellow Part 3460 Element 346024 ×1
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×4
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Yellow Part 4032a Element 403224 ×8
  • Tile 1 x 6 with Groove Yellow Part 6636 Element 6388488 or 663624 ×3
  • Tile Special 1 x 2 Grille with Bottom Groove Yellow Part 2412b Element 241224 ×3
  • Tile Special 6 x 4 with Beveled Edges and 5mm Pin (Train Bogie Plate) Yellow Part 4025 Element 6413626 or 6296796 ×5

Trans-Brown 28 pieces

  • Panel 1 x 2 x 2 [Side Supports / Hollow Studs] Trans-Brown Part 87552 Element 6581810 or 6253217 ×8
  • Panel 1 x 4 x 3 [Side Supports / Hollow Studs] Trans-Brown Part 60581 Element 6514154 or 6245264 Also in Black ×18
  • Windscreen 8 x 4 x 2 Curved [2 Dual-Fingered Click Hinges] Trans-Brown Part 46413 Element 4199601 ×2

White 24 pieces

  • Bar 6L with Stop Ring White Part 63965 Element 6170419 or 6081986 ×1
  • Brick Special, Train Front Sloping Base Wedged with 4 Studs on Front and 2 x 4 Cutout White Part 87619 Element 4560938 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×12
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box Also in Trans-Clear ×2
  • Plate Special 1 x 2 with Clip Horizontal on End White Part 63868 Element 6361170 or 4535737 ×1
  • Tile Round 2 x 2 with Clock Print White Part 4150pr0001 Element 4507355 or 4142872 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove White Part 2412b Element 6601902 or 241201 ×2
  • Vehicle Base, Train 6 x 24 with Two 2 x 2 Openings and 3 Round Holes Each End, Reinforced on Bottom Side White Part 92088 Element 6016489 ×3

Blue 21 pieces

  • Minifig Neckwear Basket [D Style] Blue Part 4523 Element 4186464 or 4128572 ×1
  • Plate 1 x 6 Blue Part 3666 Element 366623 ×4
  • Seat / Chair 2 x 2 with Center Sprue Mark Blue Part 4079b Element 407923 ×14
  • Technic Plate 2 x 4 [3 Holes] Blue Part 3709 Element 370923 ×1
  • Tile 1 x 2 with Groove Blue Part 3069b Element 306923 ×1

Trans-Red 11 pieces

  • Plate 1 x 2 Trans-Red Part 3023 Element 6514003 or 6240212 Also in Red ×8
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 2 spares in the box ×3

Tan 9 pieces

  • Bag / Messenger Pouch with Long Strap Tan Part 61976 Element 6270070 or 4550632 ×1
  • Brick Round 2 x 2 with Axle Hole Tan Part 3941 Element 4125220 or 614305 ×5
  • Plate 4 x 6 Tan Part 3032 Element 4114001 ×2
  • Technic Gear 12 Tooth Bevel Tan Part 6589 Element 4565452 or 4514556 ×1

Chrome Silver 8 pieces

  • Train Wheel RC Train, Metal Axle 5 x 100 LDU Chrome Silver Part 57051 Element 4298979 ×8

Trans-Clear 7 pieces

  • Glass for Window 1 x 2 x 3 Flat Front Trans-Clear Part 60602 Element 6581359 or 6252258 ×4
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box Also in White ×2
  • Windscreen 1 x 6 x 3 Trans-Clear Part 64453 Element 6580413 or 6514291 ×1

Green 4 pieces

  • Brick 2 x 4 Green Part 3001 Element 4106356 or 300128 ×2
  • Plate 2 x 3 Green Part 3021 Element 302128 ×2

Orange 3 pieces

  • Technic Pin Connector Round [Slotted] Orange Part 62462 Element 6173129 or 4538144 ×2
  • Tile 1 x 2 with Groove Orange Part 3069b Element 4188771 ×1

Dark Tan 1 piece

  • Technic Axle 3 with Stud Dark Tan Part 6587 Element 6031821 or 6013821 ×1

Reddish Brown 1 piece

  • Bag / Briefcase Reddish Brown Part 4449 Element 6268857 or 4211235 ×1

Trans-Green 1 piece

  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×1

Trans-Yellow 1 piece

  • Plate 1 x 2 Trans-Yellow Part 3023 Element 6514002 or 6240211 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 7938-1 [No Color/Any Color] Part 91045 Element 4586246 ×1

Minifigures 3 figures

  • Conductor - Dark Blue Jacket, Dark Bluish Grey Legs, Dark Red Hat Minifigure, checked as a whole figure ×1
  • Woman - White Shirt with Stars, White Legs Minifigure, checked as a whole figure ×1
  • Man - Hawaiian Shirt, Dark Blue Legs 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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