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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.

Checking

42209 Volvo L120 Electric Wheel Loader

973 pieces in 201 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. 3 parts in this set come in two colors that are easy to mix up; they are listed below.
The spare pieces. This set comes with 25 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.

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.

Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Black ×14 Dark Bluish Gray ×3 Black is darker than Dark Bluish Gray.
Technic Beam 1 x 2 Thin Black ×2 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.
Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] Black ×2 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.

Piece checklist

Technic Bushes 37 pieces

Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×3
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
Technic Bush Red Part 3713 Element 6271820 or 4227155 2 spares in the box ×10
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 2 spares in the box ×22

Tiles 18 pieces

Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×3
Tile 2 x 2 with Groove Dark Bluish Gray Part 3068b Element 4211055 ×2
Tile 1 x 1 with Groove Trans-Clear Part 3070b Element 6581822 or 6254254 1 spare in the box ×10
Tile 1 x 6 with Groove Yellow Part 6636 Element 6388488 or 663624 ×2
Tile 6 x 6 with Bottom Tubes Yellow Part 10202 Element 6469905 ×1

Technic Steering, Suspension and Engine 14 pieces

Technic Steering / CV Joint Axle Dark Bluish Gray Part 92906 Element 4610374 ×2
Technic Link 1 x 6 without Stoppers Green Part 32005a Element 6516871 ×2
Technic Axle 5L with 2 CV Joints Light Bluish Gray Part 2405 Element 6408171 ×1
Technic Engine Crankshaft Light Bluish Gray Part 2853 Element 6640384 or 4211609 ×6
Technic Universal Joint 3L [Complete Assembly] Light Bluish Gray Part 61903 Element 6335279 or 6321309 ×3

Bars, Ladders and Fences 13 pieces

Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip] Black Part 3484 Element 6439039 ×3
Bar Holder with Clip and 90° Angle (Mechanical Leg) Black Part 72869 Element 6338384 ×1
Bar, Angled with 1 x 1 Round Plate / Stud on End Black Part 65578 Element 6510193 or 6443416 1 spare in the box ×2
Light Cover with Internal Bar / Bionicle Barraki Eye with Hole in Bar Black Part 4278 Element 6448948 1 spare in the box ×2
Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip] Orange Part 3484 Element 6439042 ×2
Bar 3L Orange Part 87994 Element 6547502 1 spare in the box ×2
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye Trans-Orange Part 58176 Element 6507868 or 6171764 1 spare in the box ×1

Technic Beams Special 12 pieces

Technic Beam 3 x 0.5 Liftarm with Boss and Blocked, Squared Pin Hole Black Part 61408 Element 6313520 ×1
Technic Beam Frame 5 x 7 with 3 x 5 Opening Thick Black Part 64179 Element 6016154 ×2
Technic Beam 2 x 3 Thick [90° Offset Centre Beam Hole] Dark Bluish Gray Part 3167 Element 6475314 ×8
Technic Beam 3 x 5 Thick [90° Offset Centre Beam Holes] Light Bluish Gray Part 14720 Element 6055519 ×1

Plates 10 pieces

Plate 1 x 2 Black Part 3023 Element 302326 ×2
Plate 1 x 3 Black Part 3623 Element 362326 ×2
Plate 1 x 8 Black Part 3460 Element 346026 ×1
Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×2
Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×1
Plate 2 x 4 Yellow Part 3020 Element 302024 ×2

Wheels and Tyres 8 pieces

Tyre 68.7 x 27 S Black Part 52985 Element 6429788 or 6262361 ×4
Wheel 43.2 x 26 Technic Racing Small with 6 Pinholes Yellow Part 56908 Element 6536546 or 4644087 ×4

Tiles Special 6 pieces

Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] Black Part 99563 Element 6156991 Also in Dark Bluish Gray ×2
Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] Dark Bluish Gray Part 99563 Element 6331866 Also in Black ×4

Technic Bricks 4 pieces

Technic Brick 1 x 1 with Axle Hole Black Part 73230 Element 6344819 ×2
Technic Brick 1 x 2 [2 Pin Holes] Light Bluish Gray Part 32000 Element 4211541 ×2

Technic Special 4 pieces

Technic Digger Bucket 8 x 16 Black Part 6617 Element 6508525 ×1
Technic Linear Actuator Mini with Dark Bluish Gray Head and Orange Axle Light Bluish Gray Part 92693 Element 6221464 or 4612100 ×3

Bricks Round and Cones 3 pieces

Cone 1 x 1 [Top Groove] Red Part 59900 Element 4529234 ×1
Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end Yellow Part 25214 Element 6253294 or 6173898 ×2

Minifig Accessories 3 pieces

Equipment Hose Nozzle / Gun with Side String Hole Simplified Black Part 60849 Element 6641462 or 4537551 1 spare in the box ×1
Equipment Shovel [Rounded Handle End] Dark Bluish Gray Part 3837 Element 4211006 ×1
Equipment Bottle Trans-Clear Part 95228 Element 6507876 or 6247369 ×1

Bricks Curved 2 pieces

Brick Curved Inverted 2 x 1 Black Part 24201 Element 6147050 ×2

Bricks Sloped 2 pieces

Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no stud Dark Bluish Gray Part 28192 Element 6168776 ×2

Stickers 1 piece

Sticker Sheet for Set 42209-1 [No Color/Any Color] Part 10110653 Element 6522705 ×1

Transportation - Land 1 piece

Steering Wheel Small, 2 x 2 [Reinforced] Black Part 16091 Element 6057397 ×1

Tubes and Hoses 1 piece

Hose Rigid 3mm D. 7L / 5.6cm Orange Part 75c07 Element 6440441 or 6311175 1 spare in the box ×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.

LEGO Missing Piece Checker

42209 Volvo L120 Electric Wheel Loader

Before you call it missing

Look-alike colors in this set

Your missing list

Piece checklist

Technic Pins 289 pieces

Technic Beams 174 pieces

Technic Connectors 166 pieces

Technic Axles 85 pieces