Free tool

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.

Checking

8275 Motorized Bulldozer

1,381 pieces in 164 part and color combinations.

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.

Every bag and the box. Shake out each bag, check its corners and seams, and look inside the empty box.
Inside what you have built. Small pieces lodge inside tubes, under plates and between studs. Turn the model over and look.
The last few steps. Compare each recent step with its parts callout. A piece used in the wrong place earlier leaves you one short later.
Look-alike colors. Compare each color with the step's parts callout, especially White against Trans-Clear.
The spare pieces. This set comes with 21 spare pieces, marked on each row of the checklist. One may be the piece you need.
The floor and your building area. Check under furniture, the chair and the edges of your building surface.

Piece checklist

Technic Special 84 pieces

Technic Link Tread Wide with Two Pin Holes, Reinforced Dark Bluish Gray Part 88323 Element 4566742 ×84

Technic Bushes 71 pieces

Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 2 spares in the box ×40
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 3 spares in the box ×25
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 2 spares in the box ×6

Tiles Special 36 pieces

Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×30
Tile Special 1 x 2 Grille with Bottom Groove Yellow Part 2412b Element 241224 ×6

Tiles 26 pieces

Tile 1 x 2 with Groove Blue Part 3069b Element 306923 ×2
Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×3
Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×2
Tile 1 x 4 with Groove Yellow Part 2431 Element 243124 ×2
Tile 1 x 6 with Groove Yellow Part 6636 Element 6388488 or 663624 ×10
Tile 1 x 8 with Groove Yellow Part 4162 Element 6388482 or 4189400 ×7

Technic Steering, Suspension and Engine 23 pieces

Technic Engine Crankshaft Center Dark Bluish Gray Part 2854 Element 6007058 or 4210987 ×2
Technic Engine Connecting Rod Light Bluish Gray Part 2852 Element 6000018 or 4655728 ×6
Technic Engine Crankshaft Light Bluish Gray Part 2853 Element 6640384 or 4211609 ×2
Technic Engine Cylinder with Side Slots Light Bluish Gray Part 2850a ×6
Technic Universal Joint 4L [Complete Assembly] Light Bluish Gray Part 9244 Element 9244194 or 4240416 ×1
Technic Engine Piston Round Yellow Part 2851 Element 4112203 or 285124 ×6

Plates Special 18 pieces

Plate Special 2 x 2 with 2 Pin Holes Light Bluish Gray Part 2817 Element 4211376 ×6
Plate Special 4 x 4, Studs on One Edge Plain] Light Bluish Gray Part 6179 Element 4211837 ×6
Plate Special 4 x 6, Studs on 3 Edges Light Bluish Gray Part 6180 Element 4211838 ×2
Plate Special 6 x 12, Studs on 3 Edges Light Bluish Gray Part 6178 Element 4211836 ×2
Plate Special 1 x 2 with Door Rail Yellow Part 32028 Element 4141630 ×2

Wheels and Tyres 16 pieces

Wheel 11 x 8 with Center Groove Light Bluish Gray Part 42610 Element 4211758 ×16

Bricks Round and Cones 14 pieces

Brick Round 2 x 2 with Axle Hole Black Part 3941 Element 614376 or 614326 ×6
Brick Round 2 x 2 with Axle Hole Yellow Part 3941 Element 614324 or 394124 ×8

Plates Round Curved and Dishes 9 pieces

Dish 2 x 2 Inverted [Radar] Black Part 4740 Element 474026 ×1
Dish 3 x 3 Inverted [Radar] Black Part 43898 Element 4180087 ×2
Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×6

Electronics 8 pieces

Battery Box, Power Functions 4 x 11 x 7 with Orange Switch and Dark Bluish Gray Covers [Complete Assembly] Light Bluish Gray Part 58119 Element 4506078 ×1
Control Unit, IR, Power Functions, with Dark Bluish Gray Bottom Light Bluish Gray Part 58122 Element 6225576 or 6074396 ×1
Motor, Medium, Power Functions, 3 x 6 x 3 with Dark Bluish Gray Bottom and 20cm Wire Light Bluish Gray Part 58120 Element 6209881 or 6151440 ×2
Motor, XL, Power Functions, 6 x 5 x 6, 20cm with Dark Bluish Gray Bottom Light Bluish Gray Part 58121 Element 6102930 or 6073386 ×2
Receiver Unit, IR, Power Functions Light Bluish Gray Part 58123a Element 6194861 or 6132634 ×2

Pneumatics 4 pieces

Pneumatic Cylinder Bracket Yellow Part 53178 Element 4267463 ×4

Bricks Curved 3 pieces

Brick Curved Inverted 6 x 1 Yellow Part 42023 Element 6175158 or 4160408 ×3

Bricks Sloped 2 pieces

Brick Sloped Inverted 45° 2 x 1 Yellow Part 3665 Element 366524 ×2

Technic Panels 2 pieces

Technic Panel Fairing #22 Large Short, Small Hole, Side A Black Part 44352 Element 4296204 ×1
Technic Panel Fairing #23 Large Short, Small Hole, Side B Black Part 44353 Element 4296205 ×1

Tiles Round and Curved 2 pieces

Tile Round 2 x 2 with Bottom Cross Yellow Part 4150 Element 415074 or 415024 ×2

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.

LEGO Missing Piece Checker

8275 Motorized Bulldozer

Before you call it missing

Your missing list

Piece checklist

Technic Pins 386 pieces

Technic Beams 256 pieces

Technic Connectors 139 pieces