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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

42082 Rough Terrain Crane

4,056 pieces in 264 part and color combinations.

LEGO counts 4,057 pieces. This inventory comes from a separate parts catalog and lists 4,056; 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.

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. 5 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 31 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 Axle Connector Smooth [with x Hole + Orientation] Black ×60 Dark Bluish Gray ×33 Black is darker than Dark Bluish Gray.
Technic Axle and Pin Connector Angled #2 - 180° Black ×12 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.
Technic Beam 1 x 7 Thick Black ×33 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.
Technic Beam 1 x 9 Thick Black ×13 Dark Bluish Gray ×11 Black is darker than Dark Bluish Gray.
Technic Beam 3 x 3 T-Shape Thick Black ×1 Dark Bluish Gray ×20 Black is darker than Dark Bluish Gray.

Piece checklist

Blue 550 pieces

Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×147
Technic Axle and Pin Connector Angled #1 Blue Part 32013 Element 6332570 or 4107797 ×7
Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×396

Orange 77 pieces

Propeller 8 Blade 5 Diameter Orange Part 41530 Element 6325301 or 6170793 ×1
Technic Beam 3 x 5 L-Shape Thick Orange Part 32526 Element 6143015 or 4626639 ×4
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Orange Part 32054 Element 6143033 or 4229603 ×72

Yellow 59 pieces

Technic Axle 7 Yellow Part 44294 Element 6130009 ×12
Technic Beam 1 x 5 Thick Yellow Part 32316 Element 4142133 or 4128590 ×1
Technic Beam 1 x 6 Thin Yellow Part 32063 Element 6170294 or 6063252 ×12
Technic Beam Triangle Thin [Type II] Yellow Part 99773 Element 6331435 or 6010863 ×10
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×16
Technic Engine Piston Round Yellow Part 2851 Element 4112203 or 285124 ×8

Reddish Brown 39 pieces

Technic Axle 3 with Stop Reddish Brown Part 24316 Element 6135494 ×30
Technic Axle 5 with Stop Reddish Brown Part 15462 Element 6159763 ×9

Trans-Clear 14 pieces

Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 1 spare in the box ×2
Plate 1 x 2 Trans-Clear Part 3023 Element 6514001 or 6240204 ×2
Tile 1 x 1 with Groove Trans-Clear Part 3070b Element 6581822 or 6254254 1 spare in the box ×2
Tile 1 x 2 with Groove Trans-Clear Part 3069b Element 6514223 or 6251294 ×2
Tile Round 1 x 1 Trans-Clear Part 98138 Element 6514191 or 6274738 1 spare in the box ×6

Green 11 pieces

Technic Beam 3 x 5 L-Shape Thick Green Part 32526 Element 6013557 or 4143153 ×11

Trans-Orange 10 pieces

Brick Round 2 x 2 with Axle Hole Trans-Orange Part 3941 Element 6514283 or 6273154 ×1
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Orange Part 54200 Element 6245265 or 4244369 ×4
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye Trans-Orange Part 58176 Element 6507868 or 6171764 ×4
Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Trans-Orange Part 2654 Element 6513980 or 6171727 ×1

Trans-Red 6 pieces

Plate 1 x 2 Trans-Red Part 3023 Element 6514003 or 6240212 ×2
Tile 1 x 2 with Groove Trans-Red Part 3069b Element 6514220 or 6251290 ×2
Tile Round 1 x 1 Trans-Red Part 98138 Element 6514189 or 6258607 1 spare in the box ×2

Dark Tan 2 pieces

Technic Axle 3 with Stud Dark Tan Part 6587 Element 6031821 or 6013821 ×2

Trans-Green 2 pieces

Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×2

[No Color/Any Color] 1 piece

Sticker Sheet for Set 42082-1 [No Color/Any Color] Part 38739 Element 6227119 ×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

42082 Rough Terrain Crane

Before you call it missing

Look-alike colors in this set

Your missing list

Piece checklist

Black 1,551 pieces