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.
788 pieces in 215 part and color combinations, plus 7 minifigures.
The piece count includes the 37 parts inside the set's minifigures, which this inventory lists separately. 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.
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.
Bracket 1 x 2 - 2 x 2Black ×16Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Black ×8Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Cone 1 x 1 [Top Groove]Black ×1Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Hinge Brick 1 x 2 BaseBlack ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Black ×2Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]RedPart 32054Element 4140806 or 4125198×8
Trans-Dark Blue
23 pieces
Brick 1 x 2 without Bottom TubeTrans-Dark BluePart 3065Element 6514264 or 6244906×6
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Trans-Dark BluePart 54200Element 6245256 or 42443661 spare in the box×2
Cylinder Half 2 x 4 x 5 with 1 x 2 cutoutTrans-Dark BluePart 85941Element 6246873 or 4547850×8
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki EyeTrans-Dark BluePart 58176Element 6328198 or 6171763×4
Plate Round 1 x 1 with Solid StudTrans-Dark BluePart 6141Element 6514055 or 62402141 spare in the box×1
Windscreen 12 x 6 x 6 CurvedTrans-Dark BluePart 41881Element 4548121×1
Windscreen 8 x 6 x 2 CurvedTrans-Dark BluePart 41751Element 4551541×1
Trans-Red
23 pieces
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Trans-RedPart 54200Element 6245252 or 42443631 spare in the box×3
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki EyeTrans-RedPart 58176Element 6507867 or 6171762×4
Plate Round 1 x 1 with Solid StudTrans-RedPart 6141Element 6514051 or 62084502 spares in the box×15
Wave / Flame Rounded Large with Marbled Trans-Orange PatternTrans-RedPart 85959pat0001Element 4548009×1
Trans-Neon Orange
10 pieces
Dish 2 x 2 Inverted [Radar]Trans-Neon OrangePart 4740Element 6245295 or 3006347×2
Plate Round 1 x 1 with Solid StudTrans-Neon OrangePart 6141Element 6240218 or 30057471 spare in the box×8
Tan
8 pieces
Technic Axle Pin without Friction Ridges LengthwiseTanPart 3749Element 4666579 or 4186017×4
Technic Pin Long without Friction RidgesTanPart 32556×4
Trans-Neon Green
2 pieces
Plate Round 1 x 1 with Solid StudTrans-Neon GreenPart 6141Element 6240223 or 30057491 spare in the box×2
[No Color/Any Color]
1 piece
Sticker Sheet for Set 5974-1[No Color/Any Color]Part 86487Element 4550641×1
Minifigures
7 figures
Space Police III - OfficerMinifigure, checked as a whole figure×1
Space Police III - KranxxMinifigure, checked as a whole figure×1
Space Police III - SlizerMinifigure, checked as a whole figure×1
Space Police III - Classic Space StatueMinifigure, checked as a whole figure×1
Space Police III - OfficerMinifigure, checked as a whole figure×1
Space Police III - OfficerMinifigure, checked as a whole figure×1
Space Police 3 DroidMinifigure, checked as a whole figure×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.