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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.

Police Boat

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7899 Police Boat

186 pieces in 100 part and color combinations, plus 3 minifigures.

LEGO counts 199 pieces. This inventory comes from a separate parts catalog and lists 200, including the 14 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.

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

Bricks 26 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×1
  • Brick 2 x 3 Blue Part 3002 Element 300223 ×4
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×4
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×6
  • Brick 1 x 2 x 2 with Inside Axle Holder White Part 3245b ×4
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×2
  • Brick 1 x 8 White Part 3008 Element 6550134 or 300801 ×1
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×4

Bricks Sloped 21 pieces

  • Brick Sloped 33° 3 x 6 Trans-Brown Part 3939 Element 4173056 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Dark Blue Part 54200 Element 6245256 or 4244366 ×6
  • Brick Sloped 18° 4 x 2 White Part 30363 Element 4143000 ×3
  • Brick Sloped 45° 2 x 1 with Bottom Pin White Part 3040b Element 6552115 or 4121932 ×2
  • Brick Sloped 45° 2 x 2 with Green Radar, Green/Red Buttons and Disk Slot Print White Part 3039pr0002 Element 4195659 ×1
  • Brick Sloped 45° 2 x 2 with Windows in Computer Screen Print White Part 3039pr0001 Element 4195657 ×1
  • Brick Sloped 65° 2 x 2 x 2 with Bottom Tube White Part 3678b Element 6552126 or 4234525 ×2
  • Brick Sloped Inverted 45° 2 x 1 White Part 3665 Element 6552106 or 366501 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] White Part 3660 Element 366001 ×2

Plates 18 pieces

  • Plate 2 x 4 Black Part 3020 Element 302026 Also in Dark Bluish Gray ×2
  • Plate 2 x 8 Black Part 3034 Element 303426 ×2
  • Plate 1 x 4 Blue Part 3710 Element 371023 ×1
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×2
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 Also in Black ×1
  • Plate 1 x 10 White Part 4477 Element 6552113 or 6550148 ×2
  • Plate 2 x 12 White Part 2445 Element 6552091 or 244501 ×2
  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×1
  • Plate 4 x 6 White Part 3032 Element 303201 ×1
  • Plate 4 x 8 White Part 3035 Element 6609533 or 303501 ×1
  • Plate 6 x 8 White Part 3036 Element 303651 or 303601 ×1
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×2

Bars, Ladders and Fences 16 pieces

  • Bar 1 x 8 with Brick 1 x 2 Curved Top End (Axle Holder Inside Small End) Black Part 30359b Element 4164067 ×2
  • Fence Lattice 1 x 4 x 1 Black Part 3633 Element 4187209 or 363326 ×2
  • Fence Spindled 1 x 4 x 2 [2 Top Studs] Black Part 30055 Element 4185652 or 3005526 ×4
  • Antenna 8H Whip Dark Bluish Gray Part 2569 Element 6608939 or 4210642 1 spare in the box ×2
  • Bar 1 x 6 [Closed Studs] White Part 6140 Element 4288961 or 4279386 ×4
  • Lever Small Base with Black Lever White Part 298c02 Element 73737 1 spare in the box ×2

Panels 14 pieces

  • Panel 1 x 1 x 1 Corner Red Part 6231 Element 4190219 or 623121 ×2
  • Panel 1 x 4 x 1 with Rounded Corners [Thick Wall] Red Part 43337 Element 4546878 or 4247100 ×2
  • Panel 1 x 4 x 1 with Rounded Corners [Thick Wall] Trans-Brown Part 43337 Element 4201201 or 4162951 ×4
  • Panel 1 x 4 x 1 with Rounded Corners [Thick Wall] White Part 43337 Element 4173477 ×2
  • Panel 1 x 2 x 1 [Square Corners] Yellow Part 4865a Element 486524 ×4

Plates Round Curved and Dishes 12 pieces

  • Plate Round 1 x 1 with Solid Stud Blue Part 6141 Element 614123 2 spares in the box ×5
  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 2 spares in the box ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 2 spares in the box ×3
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Trans-Yellow Part 2654 Element 6581773 or 6171728 ×1

Transportation - Sea and Air 11 pieces

  • Boat Hull 51 x 12 x 6 Black Part 54100 ×1
  • Helicopter Skid Rails 12 x 6 Black Part 30248 Element 6469627 or 4546206 ×1
  • Propeller 3 Blade 5.5 Diameter with Hole for Technic Pin Black Part 4617b Element 4536184 or 461776 ×1
  • Propeller 4 Blade 5 Diameter with Rounded Ends, Open Hub Black Part 2479 Element 247926 ×1
  • Boat Deck 51 x 12 x 6 Light Bluish Gray Part 54101 ×1
  • Boat, Mast 2 x 2 x 3 Inclined with Stud on Top and Two Sides White Part 4289 Element 6108866 or 4253859 ×1
  • Tail Shuttle - Small White Part 44661 Element 6253365 or 4288960 ×1
  • Wing, Tail 4 x 1 x 3 White Part 2340 Element 6347936 or 234024 ×4

Tiles 10 pieces

  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 ×1
  • Tile 1 x 8 with Groove Dark Bluish Gray Part 4162 Element 5210651 or 4211008 ×2
  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×2
  • Tile 1 x 2 with Groove Trans-Dark Blue Part 3069b Element 6514219 or 6251289 ×2
  • Tile 1 x 1 with Groove Trans-Green Part 3070b Element 6581818 or 6254249 1 spare in the box ×1
  • Tile 1 x 1 with Groove Trans-Red Part 3070b Element 6581817 or 6254248 1 spare in the box ×1
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×1

Bricks Curved 8 pieces

  • Brick Curved 2 x 2 No Studs - 3 Recessed Side Ports Light Bluish Gray Part 44675 Element 4213383 ×2
  • Brick Curved 6 x 1 White Part 42022 Element 4160387 ×4
  • Brick Curved 6 x 2 White Part 44126 Element 6619299 or 4179870 ×2

Minifig Accessories 8 pieces

  • Equipment Radio [Extended Handle, Compact Speaker Grille] Black Part 3962b Element 396226 ×2
  • Equipment Binoculars Dark Bluish Gray Part 30162 Element 4587887 or 4211051 ×3
  • Tap 1 x 1 with Hole in Spout Light Bluish Gray Part 4599a ×2
  • Equipment Signal Paddle White Part 3900 Element 390001 ×1

Tiles Special 8 pieces

  • Tile Special 1 x 1 with Clip and Straight Tips Black Part 2555 Element 255526 ×1
  • Tile Special 1 x 2 with Handle Blue Part 2432 Element 243223 ×1
  • Tile Special 2 x 2 with Top Pin Dark Bluish Gray Part 2460 Element 4211129 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Red Part 2412b Element 241221 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove White Part 2412b Element 6601902 or 241201 ×3

Plates Special 6 pieces

  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Blue Part 4081b Element 6281991 or 4632567 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Blue Part 3794a ×3
  • Bracket 1 x 2 - 2 x 2 White Part 44728 Element 6619296 or 6117940 ×2

Bricks Special 5 pieces

  • Brick Special 1 x 1 Studs on 4 Sides Black Part 4733 Element 473326 ×1
  • Brick Special 2 x 4, with 2 x 2 Brick with Top Pin and 1 x 2 Side Plates Dark Bluish Gray Part 30592 Element 6301436 or 6278507 ×1
  • Bracket 5 x 2 x 2 1/3 with Holes, Smooth Bottom White Part 6087 Element 4288959 or 4129793 ×1
  • Brick Special 1 x 2 with Vertical Clip [Thick U Clip] White Part 30237a ×2

Plates Wedged 4 pieces

  • Wedge Plate 3 x 2 Left White Part 43723 Element 6552121 or 4179875 ×1
  • Wedge Plate 3 x 2 Right White Part 43722 Element 6552120 or 4179874 ×1
  • Wedge Plate 8 x 3, 22° Left White Part 50305 Element 4256097 ×1
  • Wedge Plate 8 x 3, 22° Right White Part 50304 Element 4256095 ×1

Transportation - Land 4 pieces

  • Handlebars Black Part 30031 Element 3003126 ×1
  • Seat / Chair 2 x 2 Blue Part 4079 ×2
  • Steering Stand 1 x 2 with Black Steering Wheel Blue Part 3829c01 Element 9566 ×1

Hinges, Arms and Turntables 3 pieces

  • Hinge Brick 1 x 2 Top Plate Thin Black Part 3938 Element 393826 ×1
  • Hinge Brick 1 x 2 Base Light Bluish Gray Part 3937 Element 4211469 ×1
  • Hinge Vehicle Roof Holder 1 x 4 White Part 4315 Element 4214079 or 4190507 ×1

Windscreens and Fuselage 3 pieces

  • Windscreen 3 x 4 x 1 1/3 with 2 Studs on Top Trans-Brown Part 2437 Element 6507913 or 6253360 ×2
  • Windscreen 4 x 4 x 4 1/3 Helicopter Trans-Brown Part 2483 Element 4288958 or 2483111 ×1

Bricks Round and Cones 2 pieces

  • Brick Round 2 x 2 x 2 Robot Body, Axle Holder '+' Orientation Dark Bluish Gray Part 30361c Element 4161673 ×1
  • Brick Round 2 x 2 with Axle Hole White Part 3941 Element 6601920 or 614351 ×1

Bricks Wedged 2 pieces

  • Brick Wedged, Angled 4 x 2 Left White Part 41768 Element 4160343 ×1
  • Brick Wedged, Angled 4 x 2 Right White Part 41767 Element 4160325 ×1

Technic Pins 2 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×1
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×1

Electronics 1 piece

  • Motor, Boat Propeller and Rudder, 19 x 4 x 4, 2-Blade Propeller [Complete Assembly] Orange Part 48064c02 Element 4285432 ×1

Stickers 1 piece

  • Sticker Sheet for Set 7899-1 [No Color/Any Color] Part 55544 Element 4290765 ×1

Technic Connectors 1 piece

  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Dark Bluish Gray Part 6553 Element 4210665 ×1

Minifigures 3 figures

  • Criminal, Prison Shirt with #50380, Dark Bluish Gray Legs, Black Hat, Gold Tooth Minifigure, checked as a whole figure ×1
  • Policeman, Black Jacket with Radio and Badge, White Helmet with Visor, Sunglasses Minifigure, checked as a whole figure ×1
  • Policeman, Black Suit with Badge, White Hat, Life Vest, Glasses 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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