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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.

High-Speed City Express Passenger Train

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7745 High-Speed City Express Passenger Train

697 pieces in 120 part and color combinations, plus 10 minifigures.

LEGO counts 736 pieces. This inventory comes from a separate parts catalog and lists 737, including the 40 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 329 pieces

  • Bar 1 x 4 x 2 with Studs Black Part 4083 Element 408326 ×1
  • Brick 1 x 1 Black Part 3005 Element 300526 ×8
  • Brick 1 x 2 Black Part 3004 Element 300426 ×41
  • Brick 1 x 4 Black Part 3010 Element 301026 ×4
  • Brick 1 x 6 Black Part 3009 Element 300926 ×8
  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×5
  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×8
  • Brick Sloped 33° 3 x 1 Black Part 4286 Element 428626 ×8
  • Brick Sloped 33° 3 x 2 Black Part 3298 Element 329826 ×6
  • Brick Sloped 33° 3 x 3 Double Convex Black Part 3675 Element 367526 ×4
  • Brick Sloped 33° 6 x 6 Double (Train Roof) Black Part 4509 Element 4107859 ×8
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×3
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Black Part 3660 Element 366026 ×26
  • Brick Special 2 x 6 x 2 Weight with Bottom Openings and Center Seams on Ends Black Part 73090a ×2
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Black Part 4349 Element 434926 ×2
  • Fence Lattice 1 x 4 x 1 Black Part 3633 Element 4187209 or 363326 ×2
  • Hinge Plate 1 x 2 with 2 Fingers and Hollow Studs Black Part 4276b Element 4264363 or 4256402 ×2
  • Hinge Plate 1 x 2 with 3 Fingers [Hollow Studs] Black Part 4275b Element 427526 ×2
  • Hinge Tile 1 x 2 1/2 with 2 Fingers on Top Black Part 4531 Element 453126 ×2
  • Hinge Vehicle Roof 4 x 4 Black Part 4213 Element 421326 ×2
  • Hinge Vehicle Roof Holder 1 x 4 Black Part 4315 Element 4250225 or 431576 ×2
  • Magnet Cylindrical Black Part 73092 Element 73092 ×6
  • Motor, Train Base, 12V Slotted with 3-Hole Plugs Black Part 501c ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×26
  • Plate 1 x 3 Black Part 3623 Element 362326 ×8
  • Plate 1 x 4 Black Part 3710 Element 371026 ×9
  • Plate 1 x 6 Black Part 3666 Element 366626 ×12
  • Plate 1 x 8 Black Part 3460 Element 346026 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×4
  • Plate 2 x 4 Black Part 3020 Element 302026 ×15
  • Plate 2 x 6 Black Part 3795 Element 379526 ×12
  • Plate 2 x 8 Black Part 3034 Element 303426 ×3
  • Plate 4 x 10 Black Part 3030 Element 303076 or 303026 ×1
  • Plate 4 x 12 Black Part 3029 Element 302926 ×1
  • Plate 4 x 6 Black Part 3032 Element 303226 ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×6
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×8
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×7
  • Tile Special 6 x 4 with Beveled Edges and 7mm Pin (Train Bogie Plate) Black Part 4092 ×5
  • Train Buffer Beam Black Part 4022 Element 4109853 or 402276 ×6
  • Train Coupling Black Part 4023 ×6
  • Vehicle Base, Train 6 x 28 with Two 1 x 2 Openings [10 Round Holes Each End and 1 Round Hole at Center] Black Part 4093b ×3
  • Wheel Train for 12V Electric Motor Black Part 867 ×2
  • Wheels Train Spoked Small (23mm D.) and Black Brick, Modified 2 x 4 [Black] Black Part 4180c01 ×11
  • Window 1 x 2 x 3 Shutter Black Part 3856 Element 4189085 or 385626 ×8
  • Window 1 x 2 x 3 Train Black Part 4035 Element 6016824 or 4108109 ×4
  • Window 1 x 4 x 3 Black Part 3853 Element 4216388 or 4189082 ×4
  • Window 1 x 4 x 3 Train with All Studs Hollow Black Part 4033 Element 4295755 or 403326 ×12

Light Gray 128 pieces

  • Bracket 2 x 3 - 1 x 3 (Train Signal Stand) Light Gray Part 4169 Element 416902 ×2
  • Brick 2 x 4 Light Gray Part 3001 Element 4116259 or 300102 ×3
  • Brick Round 1 x 1 Open Stud Light Gray Part 3062b Element 306202 ×8
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Gray Part 3040b Element 4121933 or 304002 ×8
  • Brick Sloped 45° 2 x 2 with Computer Panel Print Light Gray Part 3039pr9994 ×2
  • Brick Sloped 45° 2 x 2 with Computer Screen Print Light Gray Part 3039pr0026 ×2
  • Dish 4 x 4 Inverted [Radar] Light Gray Part 3960 Element 4143013 or 396002 ×2
  • Electric Connector, 2 Way Male Squared Narrow Short, 12V / 4.5V 28L Light Gray Part 2776c28 ×1
  • Equipment Signal Paddle Light Gray Part 3900 Element 4166550 ×1
  • Hinge Plate 1 x 2 with 2 Fingers and Hollow Studs Light Gray Part 4276b Element 427602 ×2
  • Hinge Plate 1 x 2 with 3 Fingers [Hollow Studs] Light Gray Part 4275b Element 427502 ×4
  • Plate 1 x 3 Light Gray Part 3623 Element 362302 ×2
  • Plate 2 x 4 Light Gray Part 3020 Element 302002 ×6
  • Plate 4 x 4 Light Gray Part 3031 Element 4243813 or 303102 ×2
  • Plate 6 x 10 Light Gray Part 3033 Element 303302 ×3
  • Plate 6 x 8 Light Gray Part 3036 Element 303652 or 303602 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thin Ring] Light Gray Part 4081a ×2
  • Support 1 x 16 Lattice (Train Signal Mast) Light Gray Part 4168 Element 416802 ×2
  • Track 12V Conducting Rail Curved, Interference-Free Light Gray Part 3241c ×15
  • Train Track 12V Conducting Rail Curved with Connection Wire and Short Connector Light Gray Part 2731a ×1
  • Train Track 12V Conducting Rail Straight Light Gray Part 3242 ×6
  • Tyre for Train Wheel for Electric Train Motor 12V Light Gray Part 458 ×6
  • 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 ×12
  • Wire with 2-Prong Connectors, 12V / 4.5V 28L Light Gray Part 766c28 Element 74531 ×3

Red 97 pieces

  • Brick 1 x 1 Red Part 3005 Element 300521 ×4
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×10
  • Brick 1 x 3 Red Part 3622 Element 362221 ×8
  • Brick 1 x 4 Red Part 3010 Element 301021 ×10
  • Brick 1 x 6 with Bottom Tubes and 2 Lowered Cross Supports Red Part 3009b ×10
  • Brick 1 x 8 with Bottom Tubes and 3 Lowered Cross Supports Red Part 3008b ×6
  • Brick 2 x 3 Red Part 3002 Element 300271 or 300221 ×2
  • Brick Sloped 33° 3 x 2 Red Part 3298 Element 329821 ×4
  • Brick Sloped 33° 3 x 4 Red Part 3297 Element 329721 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Red Part 3660 Element 366021 ×4
  • Cupboard 2 x 3 x 2 Door Red Part 4533 Element 453321 ×2
  • Cupboard 2 x 3 x 2 with Solid Studs Red Part 4532 Element 6106113 or 453221 ×2
  • Door 1 x 4 x 5 Train Left with White Stripe Print Red Part 4181pr0003 ×4
  • Door 1 x 4 x 5 Train Right with White Stripe Print Red Part 4182pr0003 ×4
  • Light Prism Brick, Train, 1 x 6 Holder Red Part 4170 ×2
  • Panel 1 x 4 x 3 with Diagonal 1/2 Black Left Print Red Part 4215apr0014 ×2
  • Panel 1 x 4 x 3 with Diagonal 1/2 Black Right Print Red Part 4215apr0015 ×2
  • Plate 1 x 10 Red Part 4477 Element 447721 ×12
  • Plate 1 x 8 Red Part 3460 Element 346021 ×2
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 ×3

Dark Gray 44 pieces

  • Vehicle Track, Train, Sleeper Plate 2 x 8 with Cable Grooves Dark Gray Part 4166 Element 416627 ×44

Trans-Clear 40 pieces

  • Brick 1 x 2 without Bottom Tube Trans-Clear Part 3065 Element 6514262 or 6244904 ×4
  • Brick Sloped 33° 3 x 6 Trans-Clear Part 3939 Element 4190513 or 4124070 ×4
  • Glass for Train Door Lip On Top and Bottom Trans-Clear Part 4183 Element 418340 ×8
  • Glass for Train Window 1 x 2 x 3 Trans-Clear Part 4036 Element 403640 ×4
  • Glass for Train Window 1 x 4 x 3 Trans-Clear Part 4034 Element 403440 ×12
  • Light Prism, Train, 1 x 3 Trans-Clear Part 4171 ×4
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 ×4

White 34 pieces

  • Bag / Briefcase White Part 4449 Element 4154858 or 444901 ×2
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×2
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×6
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×7
  • Brick 1 x 8 White Part 3008 Element 6550134 or 300801 ×4
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×7
  • Brick 2 x 8 White Part 3007 Element 6619309 or 6033776 ×2
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin White Part 3747a Element 374701 ×1
  • Light Brick 2 x 2 Type 2 12V with Clear Diffusor White Part 266bc01 ×2
  • Tap 1 x 2 Base with Light Gray Spout White Part 69c01 Element 4171368 ×1

Yellow 14 pieces

  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×2
  • Plate 2 x 8 Yellow Part 3034 Element 303424 ×1
  • Seat / Chair 2 x 2 Yellow Part 4079 ×11

Trans-Red 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 ×4

Brown 3 pieces

  • Bag / Briefcase Brown Part 4449 Element 4154856 or 444925 ×3

Blue 2 pieces

  • Equipment Cup / Mug [Plain] Blue Part 3899 Element 389923 ×2

[No Color/Any Color] 2 pieces

  • 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
  • Sticker Sheet for Set 7745-1 [No Color/Any Color] Part 196955 ×1

Minifigures 10 figures

  • Man - Red Torso, Black Legs Minifigure, checked as a whole figure ×1
  • Woman - Red Torso, Blue Legs Minifigure, checked as a whole figure ×1
  • Chef - White Torso, Light Gray Legs (3626a Head) Minifigure, checked as a whole figure ×1
  • Man - Red Torso, Blue Legs, Light grey Cowboy Head Minifigure, checked as a whole figure ×1
  • Woman - Blue Torso, White Legs, Black tails Minifigure, checked as a whole figure ×1
  • Man, White Torso, Black Legs, Brown Hair Minifigure, checked as a whole figure ×1
  • Man - Blue Jacket, Blue Legs, Red Hat Minifigure, checked as a whole figure ×2
  • Man - Blue Torso, Black Legs Minifigure, checked as a whole figure ×1
  • Woman - White Torso, Red 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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