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.
Builders who report a missing piece often find it in one of these places. Tick each one off as you look.
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.
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Orange ×6Trans-Orange ×6Trans-Orange is see-through: hold the piece up to a light.
Plate 1 x 2Orange ×2Trans-Orange ×2Trans-Orange is see-through: hold the piece up to a light.
Technic Axle and Pin Connector PerpendicularBlack ×40Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin HolesBlack ×26Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Technic Beam 1 x 13 ThickBlack ×15Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Technic Beam 1 x 15 ThickBlack ×16Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
2 more look-alike pairs
Technic Beam 3 x 5 L-Shape ThickBlack ×27Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile 1 x 4 with GrooveBlack ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Technic Steering Ball Joint Large ReceptacleDark Bluish GrayPart 92911Element 4610380×2
Technic Steering Hub for Portal AxleDark Bluish GrayPart 92909Element 4610378×4
Tile 1 x 4 with GrooveDark Bluish GrayPart 2431Element 4211053Also in Black×1
Orange
74 pieces
Brick Curved 3 x 1 No StudsOrangePart 50950Element 4251969×10
Brick Curved 4 x 1 No Studs [Stud Holder with Asymmetric Ridges]OrangePart 61678Element 4523603×8
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)OrangePart 54200Element 4504371 or 42481951 spare in the boxAlso in Trans-Orange×6
Plate 1 x 2OrangePart 3023Element 4177932 or 4163009Also in Trans-Orange×2
Plate 1 x 4OrangePart 3710Element 4118782×6
Technic Beam 1 x 13 ThickOrangePart 41239Element 4629802 or 4164424×3
Technic Beam 1 x 15 ThickOrangePart 32278Element 6358259 or 6135083×7
Technic Beam 3 x 5 L-Shape ThickOrangePart 32526Element 6143015 or 4626639×8
Technic Panel 5 x 11 x 1OrangePart 64782Element 4580014×1
Technic Panel Curved 11 x 3 with 2 Pin Holes through Panel SurfaceOrangePart 62531Element 4580022×2
Technic Panel Fairing # 3 Small Smooth Long, Side AOrangePart 64683Element 6601288 or 6285295×1
Technic Panel Fairing # 4 Small Smooth Long, Side BOrangePart 64391Element 6601286 or 6285294×1
Technic Panel Fairing #17 Large Smooth, Side AOrangePart 64392Element 6135079 or 4618384×1
Technic Panel Fairing #18 Large Smooth, Side BOrangePart 64682Element 6135080 or 4618385×1
Technic Pin Connector Round [Slotted]OrangePart 62462Element 6173129 or 4538144×6
Tile 1 x 4 with GrooveOrangePart 2431Element 4160593×2
Tile 2 x 2 with GrooveOrangePart 3068bElement 4542142 or 4125268×1
Tile Special 1 x 2 Grille with Bottom GrooveOrangePart 2412bElement 4125254 or 3933106×8
Yellow
49 pieces
Pneumatic Cylinder 1 x 5 with 2 InletsYellowPart 74981Element 6005292 or 4625540×1
Pneumatic Cylinder with 2 Inlets and Rounded End Medium (48mm)YellowPart 47225Element 4563144 or 4205293×2
Technic Axle and Pin Connector Angled #1YellowPart 32013Element 6329889 or 4107066×1
Technic Beam 1 x 3 ThickYellowPart 32523Element 4153707×4
Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedYellowPart 32123bElement 6271167 or 32123241 spare in the box×27
Technic Engine Piston RoundYellowPart 2851Element 4112203 or 285124×4
Technic Knob WheelYellowPart 32072Element 6284189 or 4203493×2
Technic Pin Connector Round [Slotted]YellowPart 62462Element 6173122 or 4526983×4
Technic Shock Absorber 9.5L with Extra Hard SpringYellowPart 95292c01Element 6083113 or 4619319×4
Tan
26 pieces
Technic Axle Connector Ridged [with x Hole x Orientation]TanPart 6538bElement 4207456 or 4140453×2
Technic Axle Pin without Friction Ridges LengthwiseTanPart 3749Element 4666579 or 4186017×2
Technic Gear 12 Tooth BevelTanPart 6589Element 4565452 or 45145561 spare in the box×9
Technic Gear 20 Tooth Double Bevel with Axle Hole Type 2 [X Opening]TanPart 32269Element 4514555×2
Technic Pin Long without Friction RidgesTanPart 32556×11
Trans-Clear
12 pieces
Plate 1 x 2Trans-ClearPart 3023Element 6514001 or 6240204×8
Plate Round 1 x 1 with Solid StudTrans-ClearPart 6141Element 6514052 or 62400301 spare in the box×2
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]Trans-ClearPart 2654Element 6581772 or 6163901×2
Dark Tan
11 pieces
Technic Axle 3 with StudDark TanPart 6587Element 6031821 or 6013821×11
Trans-Orange
10 pieces
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Trans-OrangePart 54200Element 6245265 or 42443691 spare in the boxAlso in Orange×6
Plate 1 x 2Trans-OrangePart 3023Element 6514005 or 6240217Also in Orange×2
Plate Round 1 x 1 with Solid StudTrans-OrangePart 6141Element 6514059 or 62402271 spare in the box×2
Trans-Yellow
4 pieces
Brick Round 2 x 2 with Axle HoleTrans-YellowPart 3941Element 6514285 or 6273155×2
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]Trans-YellowPart 2654Element 6581773 or 6171728×2
Trans-Red
2 pieces
Plate Round 1 x 1 with Solid StudTrans-RedPart 6141Element 6514051 or 62084501 spare in the box×2
White
2 pieces
Technic Gear 24 Tooth Clutch with Dark Bluish Gray CenterWhitePart 76244Element 6198486 or 6036892×2
[No Color/Any Color]
2 pieces
Sticker Sheet 1 for Set 8110-1[No Color/Any Color]Part 95746Element 4622303×1
Sticker Sheet 2 for Set 8110-1[No Color/Any Color]Part 96988Element 4631649×1
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.
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.