# LEGO 8971-1 — Aerial Defense Unit (2009)

Source: https://www.brickmissing.com/sets/8971-1-aerial-defense-unit
Publisher: BrickMissing (https://www.brickmissing.com) — free LEGO parts checker. Not affiliated with the LEGO Group.

The LEGO Agents 8971-1 Aerial Defense Unit is dispatched for a mission to protect the City from Magma Commander. His magma-drones pose a threat, requiring Agents Chase, Charge, and Swift to deploy their Agent Chopper. This large aerial defense vehicle, over 43.2 cm long, features a trigger on its handle that activates the twin-propeller system. Agents utilize zip lines for rapid deployment, and opening side doors access the chopper's command center. Inside, computers and various gadgets assist in locating the enemy satellite broadcaster. The set includes seven minifigures: Agents Chase, Charge, and Swift, along with Magma Commander and three Magma Drones, enabling engaging action scenarios.

## Set facts

- Set number: 8971-1
- Name: Aerial Defense Unit
- Theme: Agents › 2.0
- Released: 2009
- Pieces: 733
- Distinct part + colour lots: 198
- Build difficulty: advanced
- Repairability: 3.0% of this set's lots are hard to replace (6 of 198 part+colour combinations appear in three or fewer sets in the entire LEGO catalog).

## Complete parts list (198 lots, 733 pieces)

Prices are the official LEGO Pick a Brick price per individual part, where LEGO publishes one.

| Qty | Part | Colour | Part no. | LEGO element ID | LEGO price each |
| ---: | --- | --- | --- | --- | --- |
| 1 | Panel 1 x 2 x 3 - Solid Studs | Black | 2362a | 4113027 | — |
| 16 | Tile Special 1 x 2 Grille with Bottom Groove | Dark Bluish Gray | 2412b | 4210631 | €0,06 |
| 1 | Tile Special 1 x 2 Grille with Bottom Groove | Orange | 2412b | 4125254 | €0,06 |
| 1 | Wedge Plate 3 x 6 Cut Corners | Dark Blue | 2419 | 4500066 | — |
| 7 | Tile Special 1 x 2 with Handle | Dark Bluish Gray | 2432 | 4211039 | €0,11 |
| 1 | Tile Special 1 x 2 with Handle | Light Bluish Gray | 2432 | 4211357 | €0,11 |
| 8 | Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] | Yellow | 2444 | 244424 | — |
| 1 | Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] | Black | 2444 | 244426 | — |
| 2 | Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] | Light Bluish Gray | 2444 | 2444194 | — |
| 2 | Brick 1 x 1 x 5 with Blocked Open or Hollow Stud | Brown | 2453a | 245325 | — |
| 2 | Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges | Black | 2454a | 245423 | — |
| 2 | Brick 2 x 6 | Dark Bluish Gray | 2456 | 4210875 | €0,29 |
| 1 | Brick Special 1 x 2 with Pin | Light Bluish Gray | 2458 | 4211364 | — |
| 6 | Plate Special 2 x 2 with Pin on Bottom | Light Bluish Gray | 2476a | 6276848 | €0,16 |
| 2 | Plate Special 1 x 2 Side Handle [Free Ends] | Dark Bluish Gray | 2540 | 4210660 | €0,07 |
| 12 | Plate Special 1 x 2 Side Handle [Free Ends] | Black | 2540 | 4140588 | €0,07 |
| 1 | Tile Special 1 x 1 with Clip and Straight Tips | Red | 2555 | 255521 | — |
| 2 | Tile Special 1 x 1 with Clip and Straight Tips | Black | 2555 | 255526 | — |
| 6 | Technic Brick 1 x 10 [9 Pin Holes] | Black | 2730 | 273026 | €0,48 |
| 24 | Technic Pin with Friction Ridges Lengthwise and Center Slots | Black | 2780 | 278026 | — |
| 18 | Brick Special 1 x 2 with Grille | Light Bluish Gray | 2877 | 4211383 | €0,16 |
| 1 | Brick Special 1 x 1 with Handle | Light Bluish Gray | 2921 | 6170569 | €0,10 |
| 1 | Lever Small Base with Black Lever | White | 298c02 | 73737 | €0,19 |
| 2 | Lever Small Base with Black Lever | Red | 298c02 | 74335 | €0,19 |
| 3 | Brick 2 x 2 | Dark Blue | 3003 | 4296785 | €0,13 |
| 1 | Handlebars | Light Bluish Gray | 30031 | 4258308 | €0,10 |
| 5 | Brick 1 x 2 | Reddish Brown | 3004 | 4211149 | €0,11 |
| 4 | Brick 1 x 1 | Dark Bluish Gray | 3005 | 4211098 | €0,07 |
| 1 | Brick 1 x 8 | Black | 3008 | 300826 | €0,24 |
| 1 | Brick 1 x 6 | Dark Bluish Gray | 3009 | 4211100 | €0,25 |
| 6 | Brick 1 x 4 | Dark Bluish Gray | 3010 | 4211103 | €0,16 |
| 1 | Equipment Binoculars | Dark Bluish Gray | 30162 | 4211051 | €0,15 |
| 1 | Plant, Round 1 x 1 - 3 Bamboo Leaves | Light Bluish Gray | 30176 | 6270003 | €0,24 |
| 4 | Plate 2 x 4 | Light Bluish Gray | 3020 | 4211395 | €0,15 |
| 7 | Plate 2 x 3 | Yellow | 3021 | 302124 | €0,13 |
| 5 | Plate 2 x 2 | Dark Bluish Gray | 3022 | 4211094 | €0,10 |
| 8 | Plate 1 x 2 | Light Bluish Gray | 3023 | 4211398 | €0,08 |
| 3 | Plate 1 x 1 | Trans-Green | 3024 | 6252046 | €0,06 |
| 3 | Plate 1 x 1 | Trans-Red | 3024 | 6513963 | €0,06 |
| 1 | Equipment Space Binoculars / Scanner / Electrobinoculars | Dark Bluish Gray | 30304 | 4211124 | — |
| 1 | Plate 4 x 6 | Dark Bluish Gray | 3032 | 4211115 | €0,41 |
| 5 | Plate 4 x 6 | Black | 3032 | 303226 | €0,41 |
| 1 | Propeller 3 Blade 9 Diameter | Black | 30332 | 4142731 | — |
| 6 | Plate 2 x 8 | Dark Bluish Gray | 3034 | 4210997 | €0,29 |
| 8 | Plate 2 x 8 | Black | 3034 | 303426 | €0,29 |
| 1 | Plate 6 x 8 | Dark Bluish Gray | 3036 | 4210794 | €0,71 |
| 1 | Brick Round 2 x 2 Dome Top, Blocked Open Stud, Bottom Axle Holder | Red | 30367b | 4185891 | — |
| 1 | Hinge Brick 2 x 2 Locking with 1 Finger Vertical and Axle Hole [X Opening] | Yellow | 30389c | 4140708 | — |
| 1 | Slope 45? 2 x 2 | Dark Blue | 3039 | 4153653 | €0,11 |
| 6 | Slope 45° 2 x 1 with Bottom Pin | Dark Bluish Gray | 3040b | 4211135 | €0,10 |
| 12 | Slope 45° 2 x 1 with Bottom Pin | Dark Brown | 3040b | 4518557 | €0,10 |
| 2 | Brick Round 1 x 1 Open Stud | Reddish Brown | 3062b | 4211183 | €0,06 |
| 14 | Tile 2 x 2 with Groove | Dark Blue | 3068b | 4205004 | €0,07 |
| 3 | Tile 2 x 2 with Groove | Black | 3068b | 306826 | €0,07 |
| 1 | Tile 1 x 2 with Red 82, Yellow and White Gauges Print | Light Bluish Gray | 3069bpr0101 | 4227776 | — |
| 1 | Tile 1 x 1 with White and Red Gauge Print | Light Bluish Gray | 3070bpr0007 | 4255629 | — |
| 2 | Tyre 14 x 4 Smooth Small Single | Black | 3139 | 313926 | — |
| 2 | Technic Brick 1 x 2 [2 Pin Holes] | Light Bluish Gray | 32000 | 4211541 | €0,10 |
| 2 | Technic Reel 3 x 2 | Yellow | 32012 | 4120070 | — |
| 2 | Technic Axle and Pin Connector Angled #1 | Black | 32013 | 6284699 | €0,08 |
| 1 | Technic Axle and Pin Connector Angled #5 - 112.5° | Black | 32015 | 6271346 | €0,21 |
| 2 | Technic Brick 1 x 14 [13 Pin Holes] | Light Bluish Gray | 32018 | 4211705 | €0,56 |
| 8 | Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] | Light Bluish Gray | 32054 | 4211865 | — |
| 2 | Technic Beam 3 x 3 L-Shape Thin | Light Bluish Gray | 32056 | 6271815 | €0,31 |
| 4 | Technic Axle 2 Notched | Red | 32062 | 4142865 | €0,07 |
| 14 | Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin | Dark Bluish Gray | 32064a | 6178919 | €0,17 |
| 4 | Technic Plate Rotor 3 Blade with Smooth Ends and 6 Studs (Propeller) | Light Bluish Gray | 32125 | 4211842 | — |
| 4 | Technic Beam 2 x 4 L-Shape Thick | Dark Bluish Gray | 32140 | 6271830 | €0,15 |
| 1 | Technic Gear 20 Tooth Double Bevel with Axle Hole Type 2 [X Opening] | Tan | 32269 | 4514555 | — |
| 2 | Technic Gear 20 Tooth Double Bevel with Axle Hole Type 2 [X Opening] | Black | 32269 | 4177430 | — |
| 5 | Technic Gear 12 Tooth Double Bevel | Black | 32270 | 4177431 | €0,18 |
| 1 | Technic Beam 1 x 3 Thick | Lime | 32523 | 6170474 | €0,10 |
| 8 | Technic Beam 1 x 7 Thick | Light Bluish Gray | 32524 | 4495930 | €0,25 |
| 2 | Technic Pin Connector Plate with One Hole (Single on Bottom) | Black | 32529 | 4144023 | — |
| 1 | Slope 33° 3 x 2 | Red | 3298 | 329821 | €0,12 |
| 3 | Brick 1 x 3 | Reddish Brown | 3622 | 4211220 | €0,15 |
| 9 | Plate 1 x 6 | Black | 3666 | 366626 | €0,17 |
| 5 | Plate 1 x 6 | Light Bluish Gray | 3666 | 4211438 | €0,17 |
| 1 | Technic Pin without Friction Ridges Lengthwise | Light Bluish Gray | 3673 | 4211807 | €0,05 |
| 2 | Technic Brick 1 x 2 [1 Pin Hole] | Yellow | 3700 | 370024 | €0,12 |
| 2 | Technic Brick 1 x 2 [1 Pin Hole] | Black | 3700 | 370026 | €0,12 |
| 5 | Technic Brick 1 x 4 [3 Pin Holes] | Dark Bluish Gray | 3701 | 4213607 | €0,17 |
| 2 | Technic Brick 1 x 16 [15 Pin Holes] | Black | 3703 | 370326 | €0,82 |
| 2 | Technic Axle 4 | Black | 3705 | 370526 | €0,08 |
| 2 | Technic Axle 6 | Black | 3706 | 370626 | €0,12 |
| 1 | Technic Plate 2 x 4 [3 Holes] | Dark Bluish Gray | 3709 | 4227398 | €0,13 |
| 2 | Plate 1 x 4 | Reddish Brown | 3710 | 4211190 | €0,12 |
| 10 | Plate 1 x 4 | Dark Blue | 3710 | 4502089 | €0,12 |
| 2 | Technic Gear Rack 1 x 4 | Light Bluish Gray | 3743 | 6457283 | €0,19 |
| 1 | Slope Inverted 33° 3 x 2 [Connections between Studs] | Black | 3747b | 374726 | — |
| 19 | Technic Axle Pin without Friction Ridges Lengthwise | Tan | 3749 | 4666579 | €0,06 |
| 1 | Plate Special 1 x 2 with 1 Stud without Groove (Jumper) | Dark Red | 3794a | 4176959 | — |
| 5 | Plate 2 x 6 | Yellow | 3795 | 379524 | €0,19 |
| 2 | Hinge Brick 1 x 4 [Upper] | Black | 3830 | 6344999 | €0,27 |
| 2 | Hinge Brick 1 x 4 [Lower] | Black | 3831 | 383126 | €0,15 |
| 1 | Technic Brick 1 x 6 [5 Pin Holes] | Black | 3894 | 389426 | €0,29 |
| 2 | Technic Brick 1 x 6 [5 Pin Holes] | Red | 3894 | 389421 | €0,29 |
| 1 | Hinge Brick 1 x 2 Base | Black | 3937 | 393726 | €0,10 |
| 2 | Support Round 2 x 2 x 2 Stand with Reach-Through Center Hole | Dark Bluish Gray | 3940b | 4211110 | — |
| 1 | Brick Round 2 x 2 with Axle Hole | Trans-Neon Orange | 3941 | 611647 | — |
| 1 | Brick Round 2 x 2 with Axle Hole | Black | 3941 | 614326 | €0,11 |
| 1 | Antenna 1 x 4 with Rounded Top | Black | 3957a | 395723 | — |
| 2 | Weapon Gun / Torch (Space) [with Grooves] | Light Bluish Gray | 3959 | 4244750 | — |
| 1 | Equipment Radio [Extended Handle, Compact Speaker Grille] | Black | 3962b | 396226 | — |
| 2 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | Dark Bluish Gray | 4032a | 4211042 | €0,06 |
| 4 | Technic Beam 1 x 9 Thick | Dark Bluish Gray | 40490 | 4645730 | €0,29 |
| 4 | Brick Special 1 x 1 with Headlight | Light Bluish Gray | 4070 | 4211476 | €0,07 |
| 3 | Seat / Chair 2 x 2 with Center Sprue Mark | Red | 4079b | 407921 | €0,19 |
| 2 | Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] | Light Bluish Gray | 4081b | 6281998 | €0,10 |
| 4 | Plate Special 1 x 1 with Clip Vertical [Thick U Clip] | White | 4085c | 408501 | — |
| 2 | Tile Round 2 x 2 with Bottom Cross | Light Bluish Gray | 4150 | 4211480 | — |
| 15 | Tile 1 x 8 with Groove | Dark Blue | 4162 | 4507080 | €0,15 |
| 2 | Tile 1 x 8 with Groove | Dark Bluish Gray | 4162 | 4211008 | €0,15 |
| 4 | Technic Beam 1 x 2 Thin | Red | 41677 | 6371442 | €0,13 |
| 2 | Windscreen 8 x 6 x 2 Curved | Dark Blue | 41751 | 4533196 | — |
| 1 | Wedge Curved Inverted 6 x 2 Right | Dark Bluish Gray | 41764 | 4210785 | — |
| 1 | Wedge Curved Inverted 6 x 2 Left | Dark Bluish Gray | 41765 | 4210786 | — |
| 1 | Wedge 4 x 2 Right | Dark Bluish Gray | 41767 | 4242123 | — |
| 1 | Wedge 4 x 2 Left | Dark Bluish Gray | 41768 | 4242124 | — |
| 1 | Wedge Plate 4 x 2 Right | Black | 41769 | 4160869 | €0,11 |
| 10 | Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes | Yellow | 42003 | 6273711 | €0,12 |
| 2 | Brick Curved 6 x 1 | Black | 42022 | 4160393 | €0,30 |
| 2 | Brick Curved 6 x 1 Inverted | Black | 42023 | 6112323 | €0,29 |
| 2 | Wheel 11 x 8 with Center Groove | Light Bluish Gray | 42610 | 4211758 | €0,11 |
| 16 | Technic Pin 1/2 | Black | 4274 | 4143005 | €0,05 |
| 3 | Plate 2 x 16 | Black | 4282 | 428226 | €0,51 |
| 1 | Dish 6 x 6 Inverted, Radar / Webbed [Anti-studs at 90°] | Black | 4285b | 4189129 | — |
| 2 | Slope Inverted 34° 3 x 1 with Internal Stopper | Sand Blue | 4287b | 4182478 | — |
| 10 | Technic Axle Pin with Friction Ridges Lengthwise | Black | 43093 | 4206482 | €0,06 |
| 1 | Equipment Camera with Side Sight [aka Space Gun] | Black | 4360 | 436026 | €0,51 |
| 1 | Wedge Curved Inverted 6 x 4 | Dark Bluish Gray | 43713 | 4636417 | €0,52 |
| 2 | Wedge Plate 3 x 2 Right | Light Bluish Gray | 43722 | 4211791 | €0,15 |
| 2 | Wedge Plate 3 x 2 Left | Light Bluish Gray | 43723 | 4211794 | €0,15 |
| 2 | Support Round 1 x 1 x 6 Solid Pillar | Dark Bluish Gray | 43888 | 4180811 | €0,52 |
| 2 | Animal Body Part, Snake / Serpent Body, Basilisk | Black | 43936 | 4497605 | — |
| 1 | Hinge Plate 1 x 4 Locking Dual 1 Finger | Light Bluish Gray | 44568 | 6276045 | €0,21 |
| 12 | Slope 75° 2 x 1 x 3 with Hollow Stud | Dark Brown | 4460b | 4518562 | — |
| 5 | Slope Curved 2 x 2 No Studs - 3 Recessed Side Ports | Dark Blue | 44675 | 4531974 | — |
| 4 | Bracket 1 x 2 - 2 x 2 | Dark Blue | 44728 | 6224778 | €0,10 |
| 2 | Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] | Yellow | 4623 | 4497185 | — |
| 1 | Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] | Light Bluish Gray | 4623 | 4211505 | — |
| 1 | Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] | Black | 4623 | 4597267 | — |
| 2 | Wheel 8 x 6 | Light Bluish Gray | 4624 | 4211506 | — |
| 1 | Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End | Dark Bluish Gray | 47457 | 4218696 | €0,15 |
| 2 | Rock Panel 2 x 4 x 6 | Reddish Brown | 47847 | 6470002 | €0,80 |
| 1 | Panel 1 x 2 x 1 [Square Corners] | Trans-Red | 4865a | 4142109 | — |
| 1 | Wheel Holder 2 x 2 Thin with Split Wheel Clip Pins | Light Bluish Gray | 4870 | 6510631 | €1,88 |
| 8 | Plate Special 1 x 1 with Tooth | Pearl Light Gray | 49668 | 4263416 | — |
| 2 | Slope Curved 3 x 1 No Studs | Dark Bluish Gray | 50950 | 4246896 | €0,12 |
| 1 | Dish 10 x 10 Inverted (Radar) with Hollow Studs | Trans-Neon Green | 50990a | 6146499 | — |
| 2 | Tyre 17.5 x 6 with Shallow Staggered Treads | Black | 51011 | 4168163 | — |
| 2 | Arm Mechanical with Clip [Thin Support] | Pearl Light Gray | 53989 | 4288114 | — |
| 4 | Slope Curved 8 x 8 x 2 Double | Dark Blue | 54095 | 4550471 | — |
| 6 | Slope 30° 1 x 1 x 2/3 (Cheese Slope) | Dark Blue | 54200 | 4504374 | €0,06 |
| 2 | Wedge Plate 6 x 3 Right | Dark Blue | 54383 | 6253881 | €0,16 |
| 2 | Wedge Plate 6 x 3 Left | Dark Blue | 54384 | 6253880 | €0,16 |
| 2 | Wheel 18mm x 14mm with Axle Hole, Fake Bolts and Shallow Spokes | Light Bluish Gray | 55982 | 4490127 | €0,22 |
| 2 | String Cord Thin (0.5mm) 100cm | Black | 56823c100 | 4204045 | — |
| 2 | Technic Axle 5.5 with Stop [Rounded Short End] | Dark Bluish Gray | 59426 | 4508553 | €0,11 |
| 10 | Cone 1 x 1 [Top Groove] | Yellow | 59900 | 4525464 | €0,05 |
| 2 | Cone 1 x 1 [Top Groove] | Trans-Orange | 59900 | 6172233 | €0,08 |
| 1 | Cone 1 x 1 [Top Groove] | Orange | 59900 | 4518029 | €0,05 |
| 4 | Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] | Red | 6019 | 601921 | — |
| 2 | Plate Special 1 x 2 with Clips Horizontal [Thick U-Clips] | White | 60470a | 4515169 | — |
| 1 | Plate Special 1 x 2 with Clips Horizontal [Thick U-Clips] | Yellow | 60470a | 4515171 | — |
| 1 | Hinge Plate 1 x 2 Locking with 2 Fingers on Side, 9 Teeth | Red | 60471 | 4515338 | — |
| 4 | Equipment Hose Nozzle / Gun with Side String Hole Simplified | Black | 60849 | 4537551 | €0,12 |
| 2 | Brick Curved 1 x 2 x 1 1/3 with Curved Top | Dark Bluish Gray | 6091 | 6411327 | €0,08 |
| 1 | Hinge Brick 2 x 2 Top Plate Thin | Red | 6134 | 613421 | €0,15 |
| 6 | Slope 18° 2 x 1 x 2/3 with 4 Slots / Grate | Yellow | 61409 | 4540384 | €0,06 |
| 1 | Plate Round 1 x 1 with Solid Stud | Trans-Neon Orange | 6141 | 3005747 | — |
| 3 | Plate Round 1 x 1 with Solid Stud | Trans-Yellow | 6141 | 6514056 | €0,05 |
| 8 | Plate Round 1 x 1 with Solid Stud | Light Bluish Gray | 6141 | 4211525 | €0,05 |
| 2 | Plate Round 1 x 1 with Solid Stud | Trans-Red | 6141 | 6208450 | €0,04 |
| 16 | Plate Round 1 x 1 with Solid Stud | Yellow | 6141 | 614124 | €0,05 |
| 6 | Slope Curved 4 x 1 No Studs [Stud Holder with Asymmetric Ridges] | Black | 61678 | 4540048 | — |
| 1 | Plate Special 4 x 4 with Studs on One Edge [Plain] | Black | 6179 | 617926 | €0,25 |
| 2 | Plate Special 4 x 6 with Studs on 3 Edges | Black | 6180 | 4100378 | €0,31 |
| 2 | Technic Universal Joint 3L [Complete Assembly] | Light Bluish Gray | 61903 | 6335279 | €0,74 |
| 1 | Brick Special 2 x 2 with Pin and Axle Hole | Dark Bluish Gray | 6232 | 4211046 | — |
| 1 | Tail Shuttle | Black | 6239 | 6093011 | €0,47 |
| 1 | Windscreen 8 x 6 x 4 with Locking Dual 2 Fingers | Trans-Brown | 62694 | 4527067 | — |
| 6 | Plate Special 2 x 16 with Angled Side Extensions and Hole (Rotor Blade) | Black | 62743 | 4527604 | €0,45 |
| 1 | Weapon Lightsaber Hilt with Bottom Ring | Light Bluish Gray | 64567 | 4539481 | €0,05 |
| 4 | Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 | Black | 64644 | 4538456 | €0,07 |
| 1 | Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 | Orange | 64644 | 4551262 | — |
| 2 | Technic Axle and Pin Connector Perpendicular | Dark Bluish Gray | 6536 | 6261374 | €0,10 |
| 2 | Technic Axle and Pin Connector Perpendicular | Light Bluish Gray | 6536 | 6261375 | €0,10 |
| 1 | Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) | Dark Bluish Gray | 6553 | 4210665 | €0,19 |
| 4 | Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots | Black | 6558 | 4514553 | — |
| 1 | Plate Special 1 x 6 with Train Wagon End Fence | Black | 6583 | 6271649 | €0,73 |
| 1 | Gearbox 4 x 4 x 1 2/3 with 1 x 2 Cutouts, Pin Holes | Black | 6585 | 6169982 | €0,73 |
| 19 | Technic Axle 3 with Stud | Dark Bluish Gray | 6587 | 4211086 | — |
| 2 | Technic Gear 12 Tooth Bevel | Tan | 6589 | 4565452 | €0,10 |
| 4 | Technic Beam 1 x 3 Thin | Yellow | 6632 | 6344174 | €0,25 |
| 1 | Hose, Ribbed 7mm D. 11L / 8.8cm | Pearl Light Gray | 78c11 | 4141672 | — |
| 1 | Technic Rubber Belt 24mm | Red | 85544 | 4544143 | €2,65 |
| 1 | Sticker Sheet for Set 8971-1 | Unknown | 86387 | 4549905 | — |

## Notes

- Track which of these parts you own and see what is missing: https://www.brickmissing.com/sets/8971-1-aerial-defense-unit
- Inventory data is based on official LEGO inventories via the Rebrickable catalog, updated daily.
- Part images, minifigure lists and related sets are on the set page: https://www.brickmissing.com/sets/8971-1-aerial-defense-unit