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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

42081 Volvo Concept Wheel Loader ZEUX

1,167 pieces in 145 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. 1 part in this set come in two colors that are easy to mix up; they are listed below.
The spare pieces. This set comes with 26 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 Panel 3 x 11 x 1 Black ×1 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.

Piece checklist

Technic Gears 23 pieces

Technic Gear 12 Tooth Double Bevel Black Part 32270 Element 4177431 ×11
Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening] Black Part 18575 Element 6346535 or 6093977 ×1
Technic Gear Rack 1 x 13 with Axle and Pin Holes Black Part 64781 Element 6302830 or 4540906 ×1
Technic Gear Rack 1 x 7 with Axle and Pin Holes Black Part 87761 Element 6327430 or 4562009 ×1
Technic Gear Rack 1 x 14 x 2 with Axle and Pin Holes Dark Bluish Gray Part 18942 Element 6273338 or 6114979 ×1
Technic Worm Gear Short Dark Bluish Gray Part 27938 Element 6170153 ×1
Technic Gear Rack 1 x 14 x 2 Housing Light Bluish Gray Part 18940 Element 6173197 ×1
Technic Gear 12 Tooth Bevel Tan Part 6589 Element 4565452 or 4514556 ×4
Technic Gear 20 Tooth Bevel Tan Part 32198 Element 6031962 or 4514557 ×2

Technic Bushes 22 pieces

Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×12
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 2 spares in the box ×10

Large Buildable Figures 18 pieces

Large Figure Weapon Lightsaber Hilt Half 2L with Axle Hole Black Part 21755 Element 6133888 ×3
Large Figure Armor Plate, Small Yellow Part 28220 Element 6227169 ×15

Tiles Round and Curved 18 pieces

Tile Round 1 x 1 Trans-Green Part 98138 Element 6514194 or 6274742 1 spare in the box ×2
Tile Round 1 x 1 Trans-Light Blue Part 98138 Element 6514192 or 6274739 2 spares in the box ×8
Tile Round 1 x 1 Trans-Red Part 98138 Element 6514189 or 6258607 2 spares in the box ×8

Technic Beams Special 13 pieces

Technic Beam 1 x 2 with Ball Joint Straight, Smooth Ball Black Part 64276 Element 4560108 or 4537514 ×2
Technic Beam 3 x 0.5 Liftarm with Boss and Pin Semi-Reduced Black Part 33299b Element 4563044 ×3
Technic Beam Frame 5 x 7 with 3 x 5 Opening Thick Black Part 64179 Element 6016154 ×8

Bricks Sloped 12 pieces

Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Metallic Silver Part 61409 Element 6546109 or 6092115 ×4
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Clear Part 54200 Element 6245250 or 4244362 1 spare in the box ×8

Technic Steering, Suspension and Engine 11 pieces

Technic Steering Wheel Hub Holder with 2 Pin Holes and 2 Axle Holes, Slots Black Part 23801 Element 6145859 ×4
Technic Steering Hub for Portal Axle Dark Bluish Gray Part 92909 Element 4610378 ×4
Technic Universal Joint 3L [Complete Assembly] Light Bluish Gray Part 61903 Element 6335279 or 6321309 ×3

Wheels and Tyres 8 pieces

Tyre 107 x 44 Tractor Black Part 23798 Element 6141782 ×4
Wheel 56 x 34 Technic Racing Medium with 6 Pin Holes Yellow Part 15038 Element 6276852 or 6065490 ×4

Plates 7 pieces

Plate 1 x 4 Black Part 3710 Element 371026 ×2
Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×3
Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×2

Bars, Ladders and Fences 6 pieces

Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip] Black Part 48729b Element 6278152 or 6037347 2 spares in the box ×4
Bar 3L Bright Green Part 87994 Element 6161772 1 spare in the box ×2

Tiles 6 pieces

Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×2
Tile 1 x 2 with Groove Trans-Red Part 3069b Element 6514220 or 6251290 ×4

Transportation - Sea and Air 6 pieces

Propeller 3 Blades 5 Diameter, Pin Hole Black Part 92842 Element 6360206 or 4599984 ×4
Propeller 7 Blade 6 Diameter Flat Silver Part 87751 Element 6493590 or 6176468 ×2

Bricks Round and Cones 4 pieces

Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end Orange Part 25214 Element 6629148 or 6372659 ×4

Plates Round Curved and Dishes 4 pieces

Dish 6 x 6 Inverted (Radar) with Solid Studs Black Part 44375b Element 6058341 ×4

Technic Special 4 pieces

Technic Digger Bucket 13 x 23 Black Part 15265 Element 6219605 or 6055632 ×1
Technic Linear Actuator with Dark Bluish Gray Ends [Improved Version] Light Bluish Gray Part 61927b Element 6153715 or 4638507 ×3

Tubes and Hoses 3 pieces

Hose, Ribbed 7mm D. 3L / 2.4cm Flat Silver Part 78c03 Element 6420614 or 6116017 ×1
Axle Hose, Soft 12L Orange Part 32200 Element 6472522 or 6142996 ×2

Tiles Special 2 pieces

Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] Orange Part 99563 Element 6149656 ×2

Transportation - Land 2 pieces

Spoiler 2 x 4 with Handle [Plain] Yellow Part 98834 Element 6539770 or 6103399 ×2

Bricks Special 1 piece

Brick Special 1 x 2 x 2/3 with Studs on Sides Light Bluish Gray Part 4595 Element 6681658 or 4211502 ×1

Minifig Shields, Weapons, & Tools 1 piece

Weapon Sword / Foil / Épée Black Part 93550 Element 6222185 or 6160821 1 spare in the box ×1

Plates Special 1 piece

Plate Special 1 x 2 5.9mm Towball Socket Light Bluish Gray Part 14418 Element 6414556 or 6338163 ×1

Stickers 1 piece

Sticker Sheet for Set 42081-1 [No Color/Any Color] Part 38959 Element 6228528 ×1

String, Bands and Reels 1 piece

String with End Studs 11L Overall Black Part 14226c11 Element 6096955 or 6037558 ×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

42081 Volvo Concept Wheel Loader ZEUX

Before you call it missing

Look-alike colors in this set

Your missing list

Piece checklist

Technic Pins 492 pieces

Technic Beams 205 pieces

Technic Connectors 155 pieces

Technic Axles 107 pieces