Overhead Gantry and Lighting Maintenance Wagon (7821): parts list and STL files
Set 7821, Overhead Gantry and Lighting Maintenance Wagon, from 1983, has 90 pieces in 42 kinds of part and colour. Here is every part, with the ones you can 3D print at home and the ones to buy.
Get the free print filesFree: an STL file for every part you can print, the parts list and a BrickLink shopping list for the rest. Pro adds print-ready plates for a 256 mm bed and our printing guide. About ProYour Pro includes the print-ready plates.
Need filament? Find PLA on Amazon. We may earn a commission if you buy.
See the finished set (photo) on Rebrickable ↗
Buy the real set on Amazon ↗ We may earn a commission if you buy.
63 to print, 27 to buy, 0 spares. Print: plain bricks, plates and beams you can make on a home 3D printer. Buy: clear, printed, rubber, electric and very thin parts, which are better ordered. Spares are the extras in the box.
Every part in set 7821
| Colour | Part | Qty | Print or buy |
|---|---|---|---|
| Black | 3665 Brick Sloped Inverted 45° 2 x 1 | 8 | |
| Yellow | 3633 Fence Lattice 1 x 4 x 1 | 5 | |
| Black | 3020 Plate 2 x 4 | 4 | |
| Black | 3660 Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] | 4 | |
| Black | 4175 Plate Special 1 x 2 with Ladder | 4 | |
| Black | 3004 Brick 1 x 2 | 3 | |
| Light Gray | 3023 Plate 1 x 2 | 3 | |
| Black | 3666 Plate 1 x 6 | 3 | |
| Black | 3710 Plate 1 x 4 | 3 | |
| Black | 3795 Plate 2 x 6 | 3 | |
| Black | 3022 Plate 2 x 2 | 2 | |
| Black | 3023 Plate 1 x 2 | 2 | |
| Light Gray | 3713 Bush | 2 | |
| Black | 4085a Plate Special 1 x 1 with Clip Vertical [Thin Open O Clip] | 2 | |
| Light Gray | 4175 Plate Special 1 x 2 with Ladder | 2 | |
| Light Gray | 3021 Plate 2 x 3 | 1 | |
| Black | 3027 Plate 6 x 16 | 1 | |
| Black | 3031 Plate 4 x 4 | 1 | |
| Yellow | 3035 Plate 4 x 8 | 1 | |
| Black | 3403c01 Turntable 4 x 4 Square Base with Top, Complete Assembly | 1 | |
| Light Gray | 3651 Axle and Pin Connector | 1 | |
| Black | 3705 Axle 4 | 1 | |
| Yellow | 3710 Plate 1 x 4 | 1 | |
| Dark Gray | 3795 Plate 2 x 6 | 1 | |
| Black | 3832 Plate 2 x 10 | 1 | |
| Light Gray | 3960 Dish 4 x 4 Inverted [Radar] | 1 | |
| Light Gray | 4168 Support 1 x 16 Lattice (Train Signal Mast) | 1 | |
| Light Gray | 4169 Bracket 2 x 3 - 1 x 3 (Train Signal Stand) | 1 | |
| Black | 4476a Support 2 x 4 x 5 Stanchion Inclined [3mm wide posts] | 4 | Buy |
| Light Gray | 3959 Weapon Gun / Torch (Space) [with Grooves] | 2 | Buy |
| Black | 4022 Train Buffer Beam | 2 | Buy |
| Black | 4023 Train Coupling | 2 | Buy |
| Yellow | 4083 Bar 1 x 4 x 2 with Studs | 2 | Buy |
| Black | 4180c01 Wheels Train Spoked Small (23mm D.) and Black Brick, Modified 2 x 4 [Black] | 2 | Buy |
| Black | 73092 Magnet Cylindrical | 2 | Buy |
| Yellow | 3626apr0001 Minifig Head Standard Grin Print [Solid Stud] | 2 | Buy |
| Red | 3833 Helmet, Construction / Hard Hat | 2 | Buy |
| Blue | 970c28 Hips and Blue Legs | 2 | Buy |
| Blue | 973c28h01pr0026 Torso, Shirt, Patch Pocket Print, Blue Arms, Yellow Hands | 2 | Buy |
| Dark Gray | 3837 Equipment Shovel [Rounded Handle End] | 1 | Buy |
| Dark Gray | 3841 Tool Pickaxe | 1 | Buy |
| Black | 4006 Tool Screwdriver and Spanner / Wrench | 1 | Buy |
Print set 7821 at home
The set tool makes an STL file for each of the 63 printable pieces, sorted by colour, plus a shopping list for the 27 to buy. Free, no account, and it runs on your own phone or computer.
Get the free print filesPro adds print-ready plates for a 256 mm bed. About Pro
Parts data: Rebrickable, and it can differ slightly from your box. Part shapes: LDraw Parts Library (CC BY 4.0). Browse all sets. Independent project, not sponsored, authorised or endorsed by any brick company.