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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

42110 Land Rover Defender

2,573 pieces in 263 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. 6 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 28 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.

Plate 1 x 1 Black ×1 Dark Bluish Gray ×10 Black is darker than Dark Bluish Gray.
Plate 1 x 2 Black ×2 Dark Bluish Gray ×9 Black is darker than Dark Bluish Gray.
Technic Beam 1 x 15 Thick Black ×2 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.
Technic Beam 1 x 9 Thick Black ×21 Dark Bluish Gray ×2 Black is darker than Dark Bluish Gray.
Tile 1 x 4 with Groove Black ×2 Dark Bluish Gray ×1 Black is darker than Dark Bluish Gray.
Tile 1 x 6 with Groove Black ×2 Dark Bluish Gray ×1 Black is darker than Dark Bluish Gray.

Piece checklist

Technic Bushes 90 pieces

Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×1
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 2 spares in the box ×42
Technic Bush Red Part 3713 Element 6271820 or 4227155 2 spares in the box ×47

Bricks Sloped 67 pieces

Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Black Part 61409 Element 4541191 ×2
Brick Sloped 4 x 6 x 2/3 Double Dark Bluish Gray Part 32739 Element 6226932 ×1
Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no stud Dark Bluish Gray Part 28192 Element 6168776 ×4
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Bluish Gray Part 54200 Element 4521921 or 4244372 1 spare in the box ×2
Brick Sloped 30° 1 x 2 x 2/3 Light Bluish Gray Part 85984 Element 4568637 ×8
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Olive Green Part 54200 Element 6002841 1 spare in the box ×10
Brick Sloped 30° 1 x 2 x 2/3 Olive Green Part 85984 Element 6016468 ×40

Technic Steering, Suspension and Engine 45 pieces

Technic Steering Wheel Hub Holder with 2 Pin Holes and 2 Axle Holes, No Slots Black Part 65766 Element 6352693 ×4
Technic Steering Wheel Large Black Part 2741 Element 4125213 ×1
Technic Link 1 x 6 without Stoppers Dark Bluish Gray Part 32005a Element 4629920 or 4211026 ×6
Technic Steering Arm 5.5 x 2 with Towball Socket Rounded, Chamfered [Reinforced] Dark Bluish Gray Part 64872 Element 6278260 ×8
Technic Steering Hub for Portal Axle Dark Bluish Gray Part 92909 Element 4610378 ×4
Technic Shock Absorber 6.5L with Soft Spring, Tight Coil, Black Piston Rod [Complete Assembly] Light Bluish Gray Part 89953c01 Element 6378472 ×2
Technic Steering / CV Joint Light Bluish Gray Part 32494 Element 6265690 or 6122217 ×4
Technic Universal Joint 3L [Complete Assembly] Light Bluish Gray Part 61903 Element 6335279 or 6321309 ×10
Technic Shock Absorber 6.5L with Hard Spring, Tight Coil in Middle [Complete Assembly] Red Part 76537 Element 6144791 ×6

Bricks Curved 37 pieces

Brick Curved 2 x 2 with Lip, No Studs Black Part 30602 Element 6476459 or 4143875 ×2
Brick Curved Inverted 2 x 1 Dark Bluish Gray Part 24201 Element 6215212 ×1
Brick Curved 1 x 2 x 1 1/3 with Curved Top Dark Tan Part 6091 Element 6360295 or 6100644 ×6
Brick Curved 2 x 1 No Studs [1/2 Bow] Dark Tan Part 11477 Element 6101254 ×7
Brick Curved 2 x 2 x 2/3 Dark Tan Part 15068 Element 6093038 ×7
Brick Curved Inverted 2 x 2 x 2/3 Light Bluish Gray Part 32803 Element 6185676 ×2
Brick Curved 2 x 2 x 2/3 Olive Green Part 15068 Element 6046904 ×10
Brick Curved 2 x 1 No Studs [1/2 Bow] White Part 11477 Element 6552145 or 6548276 ×2

Plates Special 19 pieces

Plate Special 1 x 2 with Pin Hole Underneath Black Part 18677 Element 6192309 or 6167497 ×13
Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] Black Part 10247 Element 6061032 ×1
Plate Special 1 x 2 with Pin Hole on Top Dark Bluish Gray Part 11458 Element 6019987 ×5

Plates Round Curved and Dishes 15 pieces

Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×1
Plate Special 1 x 2 Rounded with 2 Open Studs Black Part 35480 Element 6210270 ×3
Plate Round 1 x 1 with Open Stud Light Bluish Gray Part 85861 Element 6168647 or 6124825 1 spare in the box ×2
Plate Round Corners 2 x 6 Double Light Bluish Gray Part 18980 Element 6105964 ×2
Dish 2 x 2 Inverted [Radar] Trans-Clear Part 4740 Element 6514246 or 6245306 ×2
Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box ×5

Tiles Round and Curved 15 pieces

Tile Round 1 x 1 Black Part 98138 Element 6284070 or 6139403 1 spare in the box ×12
Tile Round 2 x 2 with Bottom Stud Holder Black Part 14769 Element 6070695 ×1
Tile Round 1 x 1 Orange Part 98138 Element 6284582 or 6009459 1 spare in the box ×2

Bricks Round and Cones 14 pieces

Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end Black Part 25214 Element 6179182 ×10
Brick Round 2 x 2 [Grill] Black Part 92947 Element 6024730 ×1
Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end Light Bluish Gray Part 25214 Element 6151349 ×3

Technic Bricks 14 pieces

Technic Brick 1 x 1 with Pin Hole Black Part 6541 Element 654126 ×4
Technic Brick 1 x 2 [2 Pin Holes] Dark Bluish Gray Part 32000 Element 4210762 ×8
Technic Brick 1 x 4 [3 Pin Holes] Dark Bluish Gray Part 3701 Element 4213607 or 370127 ×2

Wheels and Tyres 10 pieces

Tyre 81.6 x 36 R Black Part 56907 Element 6241908 or 6022941 ×5
Wheel 56 x 34 Technic Racing Medium with 6 Pin Holes, Open Spokes Black Part 49294 Element 6257076 ×5

Technic Beams Special 6 pieces

Technic Beam 3 x 0.5 Liftarm with Boss and Blocked, Squared Pin Hole Black Part 61408 Element 6313520 ×2
Technic Beam Frame 5 x 7 with 3 x 5 Opening Thick Black Part 64179 Element 6016154 ×1
Technic Beam Frame 7 x 11 Black Part 39794 Element 6265643 ×1
Technic Beam 5 x 11 with 3 x 5 Opening Frame Thick Light Bluish Gray Part 64178 Element 4540797 ×2

Bricks Special 4 pieces

Brick Special 1 x 2 with 2 Studs on 1 Side Dark Bluish Gray Part 11211 Element 6230233 ×2
Brick Special 1 x 4 with 4 Studs on One Side Dark Bluish Gray Part 30414 Element 4210725 ×2

Hinges, Arms and Turntables 4 pieces

Hinge Brick 2 x 2 Top Plate Thin Black Part 6134 Element 4124096 or 613426 ×2
Hinge Brick 1 x 2 Base Dark Bluish Gray Part 3937 Element 4211066 ×2

Pneumatics 4 pieces

Pneumatic Hose Connector with Axle Connector Dark Bluish Gray Part 99021 Element 6265669 or 6020189 ×4

String, Bands and Reels 4 pieces

String Cord Medium Thickness (1mm) 150cm Dark Bluish Gray Part 37597c150 Element 6431485 or 6226157 ×1
Technic Reel 3 x 2 Dark Bluish Gray Part 32012 Element 32012199 or 4239891 ×1
Rubber Belt Small [15mm ID] [Round Cross Section] White Part 85543 Element 6699001 or 4580665 ×2

Technic Special 4 pieces

Technic Disc 3 x 3 Black Part 2723 Element 4218868 or 4121619 ×2
Technic Changeover Catch - New Style Red Part 51149 Element 6313493 ×2

Bricks 3 pieces

Brick 1 x 1 Dark Bluish Gray Part 3005 Element 4211098 ×2
Brick 1 x 8 Dark Bluish Gray Part 3008 Element 4211099 ×1

Bars, Ladders and Fences 2 pieces

Bar 3L Black Part 87994 Element 6185316 or 6093525 1 spare in the box ×2

Bricks Wedged 2 pieces

Brick Wedged, Curved Triple 4 x 6 x 2/3 with 4 Studs Dark Bluish Gray Part 52031 Element 6592401 or 4294181 ×2

Minifig Neckwear 2 pieces

Minifig Neckwear Bracket [One Stud] - Reinforced White Part 28974 Element 6277181 ×2

Plates Wedged 2 pieces

Wedge Plate 2 x 2 Cut Corner Olive Green Part 26601 Element 6278087 ×2

Tiles Special 2 pieces

Tile Special 1 x 2 with Handle Orange Part 2432 Element 6253318 or 6060855 ×2

Stickers 1 piece

Sticker Sheet for Set 42110-1 [No Color/Any Color] Part 65545 Element 6283148 ×1

Supports, Girders and Cranes 1 piece

Hook with Towball Dark Bluish Gray Part 30395 Element 30395199 or 6347464 ×1

Tubes and Hoses 1 piece

Hose, Ribbed 7mm D. 9L / 7.2cm Black Part 78c09 Element 6443871 or 6420612 ×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.