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Steam Cargo Train

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7722 Steam Cargo Train

487 pieces in 133 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

Transportation - Land 99 pieces

  • Forklift Mast and Carriage, Wide 1 x 2 Hinge Plate and Light Gray Wide Forks [Complete Assembly] Black Part 4518ac01 ×1
  • Train Buffer Beam Black Part 4022 Element 4109853 or 402276 ×4
  • Train Buffer Single Black Part 3488 ×4
  • Seat / Chair 2 x 2 Blue Part 4079 ×1
  • Steering Stand 1 x 2 with Black Steering Wheel Blue Part 3829c01 Element 9566 ×1
  • Vehicle Track, Train, Sleeper Plate 2 x 8 with Cable Grooves Dark Gray Part 4166 Element 416627 ×40
  • Seat / Chair 2 x 2 Light Gray Part 4079 Element 407902 ×1
  • Vehicle Track, Train, Slotted Rail Curved Inside Light Gray Part 3230b ×16
  • Vehicle Track, Train, Slotted Rail Curved Outside Light Gray Part 3229b ×16
  • Vehicle Track, Train, Slotted Rail Straight Light Gray Part 3228b Element 322802 ×8
  • Train Direction Switch - 4.5V 2 x 3 Red Part 3218 ×2
  • Train Signal Circuit-Breaker Bar Red Part upn0387 ×1
  • Train Signal Post Red Part upn0262 ×1
  • Train, Steam Engine Cylinder, 1 x 2 Studs, Round Surfaces, Interior Grooves Red Part upn0256b ×2
  • Vehicle Base, Train 6 x 16 Red Part 4178 ×1

Plates 82 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×16
  • Plate 1 x 4 Black Part 3710 Element 371026 ×3
  • Plate 1 x 6 Black Part 3666 Element 366626 ×7
  • Plate 1 x 8 Black Part 3460 Element 346026 ×2
  • Plate 2 x 10 Black Part 3832 Element 383226 ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 ×4
  • Plate 2 x 6 Black Part 3795 Element 379526 ×6
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×1
  • Plate 6 x 16 Black Part 3027 Element 302726 ×2
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×4
  • Plate 1 x 4 Blue Part 3710 Element 371023 ×3
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×2
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×1
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×1
  • Plate 4 x 4 Blue Part 3031 Element 4243815 or 303123 ×1
  • Plate 4 x 8 Blue Part 3035 Element 303523 ×1
  • Plate 1 x 4 Light Gray Part 3710 Element 371002 ×9
  • Plate 1 x 6 Light Gray Part 3666 Element 366602 ×6
  • Plate 1 x 8 Light Gray Part 3460 Element 346002 ×2
  • Plate 2 x 4 Light Gray Part 3020 Element 302002 ×1
  • Plate 4 x 6 Light Gray Part 3032 Element 303202 ×3
  • Plate 6 x 10 Light Gray Part 3033 Element 303302 ×1
  • Plate 1 x 2 Red Part 3023 Element 302321 ×2
  • Plate 1 x 1 Trans-Red Part 3024 Element 6513963 or 6252042 ×2

Bricks Sloped 62 pieces

  • Brick Sloped 33° 3 x 2 Black Part 3298 Element 329826 ×2
  • Brick Sloped 33° 6 x 6 Double (Train Roof) Black Part 4509 Element 4107859 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×2
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×2
  • Brick Sloped 45° 2 x 2 with 3 Gauges and 3 Knobs Print Black Part 3039pr9970 Element 4251812 or 4163777 ×1
  • Brick Sloped 45° 2 x 3 Black Part 3038 Element 303826 ×6
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×20
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Black Part 3660 Element 366026 ×6
  • Brick Sloped 45° 2 x 1 with Bottom Pin Blue Part 3040b Element 4121936 or 304023 ×4
  • Brick Sloped 45° 2 x 2 Blue Part 3039 Element 303923 ×3
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Blue Part 3660 Element 366023 ×3
  • Brick Sloped 33° 3 x 2 Light Gray Part 3298 Element 329802 ×6
  • Brick Sloped 33° 6 x 6 Double (Train Roof) Light Gray Part 4509 Element 4201555 or 450902 ×4
  • Brick Sloped Inverted 45° 2 x 1 Yellow Part 3665 Element 366524 ×2

Bricks 59 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×6
  • Brick 1 x 2 Black Part 3004 Element 300426 ×6
  • Brick 1 x 4 Black Part 3010 Element 301026 ×3
  • Brick 1 x 6 Black Part 3009 Element 300926 ×3
  • Brick 1 x 8 Black Part 3008 Element 300826 ×2
  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×2
  • Brick 2 x 3 Black Part 3002 Element 300226 ×6
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×3
  • Brick 1 x 2 with Black Grill Print Blue Part 3004pr9981 ×2
  • Brick 2 x 3 Blue Part 3002 Element 300223 ×2
  • Brick 1 x 4 Red Part 3010 Element 301021 ×4
  • Brick 1 x 6 Red Part 3009 Element 300921 ×4
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×4
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×6
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×2
  • Brick 1 x 6 Yellow Part 3009 Element 300924 ×4

Bricks Round and Cones 38 pieces

  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×1
  • Brick Round 1 x 1 Open Stud Red Part 3062b Element 306221 ×4
  • Cone 1 x 1 [No Top Groove] Red Part 4589 Element 458921 ×8
  • Brick Round 2 x 2 with Axle Hole White Part 3941 Element 6601920 or 614351 ×12
  • Brick Round 2 x 2 with Axle Hole Yellow Part 3941 Element 614324 or 394124 ×12
  • Cone 1 x 1 [No Top Groove] Yellow Part 4589 Element 458924 ×1

Wheels and Tyres 24 pieces

  • Plate Special 2 x 2 with Wheels Red Black Part 122c01 ×4
  • Tyre 15 x 6 Offset Tread Small Black Part 3641 Element 4501046 or 364126 ×6
  • Tyre 21 x 8 Offset Tread Medium Black Part 4084 ×2
  • Wheels Train Spoked Small (23mm D.) and Black Brick, Modified 2 x 4 [Black] Black Part 4180c01 ×4
  • Tyre for Train Wheel for Electric Train Motor 12V Light Gray Part 458 ×4
  • Train Wheel Spoked for Motor Red Part upn0383a ×4

Plates Round Curved and Dishes 23 pieces

  • Dish 4 x 4 Inverted [Radar] Black Part 3960 Element 396026 ×1
  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 Also in Trans-Red ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Red Part 4032a Element 403221 ×12
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 Also in Red ×4
  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 ×2

Windows and Doors 18 pieces

  • Door 1 x 4 x 5 Train Left Black Part 4181 Element 6192824 or 4111856 ×1
  • Door 1 x 4 x 5 Train Right Black Part 4182 Element 6192825 or 6040299 ×1
  • Window 1 x 2 x 3 Train Black Part 4035 Element 6016824 or 4108109 ×2
  • Door Sliding - Type 1 Red Part 4511 ×2
  • Glass for Train Door Lip On Top and Bottom Trans-Clear Part 4183 Element 418340 ×4
  • Glass for Train Window 1 x 2 x 3 Trans-Clear Part 4036 Element 403640 ×4
  • Door 1 x 4 x 5 Train Left with Red Bottom Half Print Yellow Part 4181pr0002 ×1
  • Door 1 x 4 x 5 Train Right with Red Bottom Half Print Yellow Part 4182pr0002 ×1
  • Window 1 x 2 x 3 Train Yellow Part 4035 Element 403524 ×2

Hinges, Arms and Turntables 14 pieces

  • Hinge Plate 1 x 2 with 2 Fingers and Hollow Studs Black Part 4276b Element 4264363 or 4256402 ×2
  • Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×1
  • Hinge Plate 1 x 2 with 3 Fingers [Hollow Studs] Blue Part 4275b Element 4239024 or 427523 ×4
  • Hinge Tile 1 x 2 1/2 with 2 Fingers on Top Blue Part 4531 Element 4240367 or 453123 ×4
  • Turntable 2 x 2 Plate, Base Blue Part 3680 Element 368023 ×1
  • Turntable 2 x 2 Plate - Top Light Gray Part 3679 Element 367952 or 367902 ×2

Bricks Special 13 pieces

  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×6
  • Bracket 8 x 2 x 1 1/3 Blue Part 4732 Element 473223 ×1
  • Brick Special 1 x 1 with Headlight Blue Part 4070 Element 407023 ×4
  • Brick Special 1 x 1 with Headlight Yellow Part 4070 Element 407024 ×2

Magnets and Holders 12 pieces

  • Magnet Cylindrical Black Part 73092 Element 73092 ×6
  • Train Coupling Black Part 4023 ×6

Tiles 12 pieces

  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×2
  • Tile 2 x 2 with Groove Blue Part 3068b Element 306823 ×1
  • Tile 2 x 2 with Groove Light Gray Part 3068b Element 306802 ×4
  • Tile 1 x 2 with Mail Envelope, Letter, Address and Red Stamp Print White Part 3069bpr0099 Element 4521848 or 80170 ×5

Plates Special 11 pieces

  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×2
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] Black Part 4623 Element 4597267 or 462326 ×1
  • Plate Special 1 x 8 with Door Rail Black Part 4510 Element 4286009 or 451026 ×2
  • Plate Special 2 x 2 with Towball Black Part 3729 Element 4124111 or 4107856 ×1
  • Plate Special 2 x 2 with Towball Socket, Short, 4 Slots Black Part 3730 Element 373026 ×1
  • Plate Special 1 x 8 with Door Rail Light Gray Part 4510 Element 451002 ×2
  • Plate Special 1 x 2 with Ladder Red Part 4175 Element 6285246 or 6179575 ×2

Bars, Ladders and Fences 9 pieces

  • Bar 1 x 4 x 2 with Studs Black Part 4083 Element 408326 ×1
  • Lever Small Base with Black Lever Black Part 298c02 Element 73587 ×2
  • Fence Lattice 1 x 4 x 1 Blue Part 3633 Element 4106807 or 363323 ×2
  • Fence Lattice 1 x 4 x 1 Red Part 3633 Element 4187280 or 363321 ×4

Electronics 4 pieces

  • Motor, Train, 4.5V 12 x 4 x 3 1/3 Type III, Open Contacts Black Part upn0259c02 ×1
  • Battery Cover, Train Car Roof 6 x 14 Light Gray Part 699 ×1
  • Wire with 2-Prong Connectors, 12V / 4.5V 28L Light Gray Part 766c28 Element 74531 ×1
  • Battery Box, Train Car with Black Base, Black Wheels and Magnets Red Part 3443c01 ×1

Tubes and Hoses 2 pieces

  • Flexible Hose 8.5L with Tabless Ends (Ends same color as Tube) Black Part 73590c01a ×2

Gear Parts 1 piece

  • Activity Card, Train Track Layout Template 1:13 Scale for 4.5V & 12V, 159mm x 134mm, with Lego logo [No Color/Any Color] Part 196926 ×1

Minifig Heads 1 piece

  • Minifig Head [Plain] [Solid Stud] Black Part 3626a ×1

Stickers 1 piece

  • Sticker Sheet for Set 7722-1 [No Color/Any Color] Part 196935 Element 196935 ×1

Technic Bricks 1 piece

  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×1

Technic Pins 1 piece

  • Technic Pin 1/2 without Friction Ridges Light Gray Part 4274 Element 427402 ×1

Minifigures 3 figures

  • Postal Worker, Red Shirt with Horn Logo, Black Legs, Black Hat (3626a Head) Minifigure, checked as a whole figure ×1
  • Man - Blue Jacket, Blue Legs, Red Hat Minifigure, checked as a whole figure ×1
  • Man - White Torso, Red Overall, Red Cap (3626a Head) 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.

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