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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.

Single-Drum Roller

Checking

7746 Single-Drum Roller

200 pieces in 87 part and color combinations, plus 2 minifigures.

The official piece count includes the 8 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.

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Piece checklist

Yellow 72 pieces

  • Bracket 1 x 2 - 2 x 2 Yellow Part 44728 Element 6117938 or 4615642 ×3
  • Brick 1 x 10 Yellow Part 6111 Element 4200026 or 4192022 ×2
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×2
  • Brick 1 x 6 Yellow Part 3009 Element 300924 ×2
  • Brick 2 x 6 Yellow Part 2456 Element 4181143 or 245624 ×4
  • Brick Curved 2 x 2 No Studs - 3 Recessed Side Ports Yellow Part 44675 Element 4185269 ×1
  • Brick Curved 4 x 1 No Studs [Stud Holder with Asymmetric Ridges] Yellow Part 61678 Element 4522035 ×4
  • Brick Curved 6 x 1 Yellow Part 42022 Element 4160392 ×4
  • Brick Curved 6 x 2 Yellow Part 44126 Element 4180546 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Yellow Part 3040b Element 4121965 or 304024 ×2
  • Brick Sloped 75° 2 x 1 x 3 with Hollow Stud Yellow Part 4460b Element 6375518 or 6024687 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Yellow Part 3660 Element 366024 ×2
  • Brick Special 1 x 2 with Pin Yellow Part 2458 Element 245824 ×6
  • Brick Wedged, Curved Triple 4 x 6 x 2/3 with 4 Studs Yellow Part 52031 Element 4263142 ×1
  • Panel 1 x 4 x 1 with Rounded Corners [Thick Wall] Yellow Part 43337 Element 6078611 or 4239160 ×2
  • Plate 1 x 6 Yellow Part 3666 Element 366624 ×5
  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×4
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Yellow Part 4032a Element 403224 ×12
  • Plate Special 1 x 2 Side Handle [Free Ends] Yellow Part 2540 Element 4140587 or 254024 ×1
  • Plate Special 1 x 2 with Door Rail Yellow Part 32028 Element 4141630 ×2
  • Technic Plate Rotor 6 Blade with Clip Ends Connected [aka Water Wheel] - Hollow Studs Yellow Part 64566 Element 4657288 or 4545318 ×2
  • Technic Slope Long 1 x 6 with 3 Pin Holes Yellow Part 2744 Element 4547043 or 4190417 ×2
  • Wheel 30.4 x 20 without Pinholes, with Reinforced Rim Yellow Part 56145 Element 6286380 or 4490139 ×2
  • Wheel Arch, Mudguard, 1 1/2 x 6 x 1 [Arch Extended] Yellow Part 62361 Element 4523558 ×2

Black 48 pieces

  • Arm Mechanical with 2 Clips [Battle Droid] Black Part 30377 Element 6330086 or 4223247 1 spare in the box ×1
  • Bar 1 x 3 [Clip / Anti-Stud] Black Part 4735 Element 4141580 or 473576 ×4
  • Bar 1 x 4 x 2 with Studs Black Part 4083 Element 408326 ×1
  • Bar 4L (Lightsaber Blade / Wand) Black Part 30374 Element 6116604 or 4140303 ×1
  • Brick Round 2 x 2 with Axle Hole Black Part 3941 Element 614376 or 614326 ×1
  • Dish 2 x 2 Inverted [Radar] Black Part 4740 Element 474026 ×2
  • Handlebars Black Part 30031 Element 3003126 ×1
  • Plate 1 x 4 Black Part 3710 Element 371026 ×7
  • Plate 2 x 6 Black Part 3795 Element 379526 ×4
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×1
  • Plate 4 x 8 Black Part 3035 Element 303526 ×2
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Black Part 4085c Element 408526 ×2
  • Plate Special 1 x 2 [Side Handle Closed Ends] Black Part 48336 Element 4225201 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×6
  • Road Sign Clip-on 2 x 2 Square Black Part 30258 Element 4547041 or 4210585 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×2
  • Technic Pin Connector Round [Slotted] Black Part 62462 Element 6173119 or 4526982 ×1
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 2 spares in the box ×5
  • Technic Rotation Joint Ball Loop with Two Perpendicular Pins with Friction Black Part 47455 Element 4272426 or 4213374 ×1
  • Tile Round 2 x 2 with Bottom Cross Black Part 4150 Element 415076 or 415026 ×1
  • Tyre 56 x 26 Balloon Black Part 55976 Element 6495636 or 4297209 ×2

Dark Bluish Gray 36 pieces

  • Brick Curved 6 x 2 Dark Bluish Gray Part 44126 Element 4210873 ×1
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Dark Bluish Gray Part 61409 Element 4540386 or 4521185 ×4
  • Brick Special 1 x 2 with Grille Dark Bluish Gray Part 2877 Element 4210636 ×2
  • Brick Special 1 x 2 with Handle Dark Bluish Gray Part 30236 Element 4211128 ×1
  • Equipment Shovel [Rounded Handle End] Dark Bluish Gray Part 3837 Element 4211006 ×1
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×1
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×4
  • Plate 2 x 8 Dark Bluish Gray Part 3034 Element 4210997 ×2
  • Plate Round Corner 4 x 4 Dark Bluish Gray Part 30565 Element 4222042 ×2
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Dark Bluish Gray Part 60478 Element 4521187 ×4
  • Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×2
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Socket Dark Bluish Gray Part 48169 Element 6278974 or 4225973 ×1
  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Dark Bluish Gray Part 32530 Element 4210763 ×1
  • Tile 2 x 2 with Groove Dark Bluish Gray Part 3068b Element 4211055 ×3
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 ×1
  • Tile Special 2 x 2 with Top Pin Dark Bluish Gray Part 2460 Element 4211129 ×1
  • Wheel Wagon Viking with 12 Holes [7 Studs Diameter] Dark Bluish Gray Part 55817 Element 6264148 or 6034887 ×5

Light Bluish Gray 16 pieces

  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×3
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Light Bluish Gray Part 60470b Element 6337268 or 4556157 ×2
  • Technic Beam 1 x 3 Thick Light Bluish Gray Part 32523 Element 4211655 ×2
  • Technic Brick 4 x 4 with 2 x 2 Opening Light Bluish Gray Part 32324 Element 4211640 ×1
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×2
  • Tile Special 1 x 2 with Handle Light Bluish Gray Part 2432 Element 4211357 ×6

Trans-Orange 8 pieces

  • Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye Trans-Orange Part 58176 Element 6507868 or 6171764 ×4
  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 2 spares in the box ×4

Blue 5 pieces

  • Brick 2 x 4 Blue Part 3001 Element 300173 or 300123 ×1
  • Brick Special 1 x 4 with 4 Studs on One Side Blue Part 30414 Element 4212411 or 4141768 ×1
  • Seat / Chair 2 x 2 with Center Sprue Mark Blue Part 4079b Element 407923 ×1
  • Steering Stand 1 x 2 with Black Steering Wheel Blue Part 3829c01 Element 9566 ×1
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×1

Red 4 pieces

  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Horizontal Top] Red Part 48170 Element 6384704 or 4225923 ×1
  • Technic Bush Red Part 3713 Element 6271820 or 4227155 1 spare in the box ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Red Part 2412b Element 241221 ×1

White 3 pieces

  • Cone 1 x 1 [Top Groove] White Part 59900 Element 6601844 or 4518400 ×2
  • Technic Axle 16 White Part 50451 Element 4233225 ×1

Trans-Brown 2 pieces

  • Panel 1 x 4 x 3 [Hollow Studs] Trans-Brown Part 4215b Element 4163113 ×1
  • Windscreen 3 x 4 x 3 Trans-Brown Part 84954 Element 6514069 or 6244759 ×1

Trans-Red 2 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Red Part 54200 Element 6245252 or 4244363 1 spare in the box ×2

Trans-Yellow 2 pieces

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

Reddish Brown 1 piece

  • Equipment Brush / Push Broom Reddish Brown Part 3836 Element 4211157 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 7746-1 [No Color/Any Color] Part 85025 Element 4542186 ×1

Minifigures 2 figures

  • Construction Worker, Orange Jacket with Zipper and Reflective Stripes, Orange Legs, Red Hard Hat, Moustache Minifigure, checked as a whole figure ×1
  • Construction Worker, Orange Jacket with Zipper and Reflective Stripes, Orange Legs, Red Hard Hat, Silver Sunglasses 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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