# LEGO 42201-1 — Deep-Sea Research Submarine (2025)

Source: https://www.brickmissing.com/sets/42201-1-deep-sea-research-submarine
Publisher: BrickMissing (https://www.brickmissing.com) — free LEGO parts checker. Not affiliated with the LEGO Group.

The LEGO Technic Deep-Sea Research Submarine (42201-1) from 2025 enables ocean exploration with 413 pieces. It features an operational steering mechanism and three spinning propellers for movement. Inside, the cockpit includes a seat and controls for a pilot. This submarine also integrates three air tanks for buoyancy, and an extending arm to grab the barrel accessory from the seabed. The Technic design showcases engineering principles through its gear-driven steering, offering a detailed representation of deep-sea vehicles. Technic pins secure the arm's articulation, ensuring sturdy movement.

## Set facts

- Set number: 42201-1
- Name: Deep-Sea Research Submarine
- Theme: Technic
- Released: 2025
- Pieces: 413
- Distinct part + colour lots: 111
- LEGO retail price: € 39,99
- Build difficulty: intermediate
- Repairability: 9.9% of this set's lots are hard to replace (11 of 111 part+colour combinations appear in three or fewer sets in the entire LEGO catalog).

## Complete parts list (111 lots, 413 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 | Sticker Sheet for Set 42201-1 | Unknown | 10110645 | 6522697 | — |
| 7 | Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle | Red | 11214 | 6209519 | €0,29 |
| 2 | Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle | Dark Bluish Gray | 11214 | 6015356 | €0,29 |
| 4 | Technic Pin Connector Perpendicular 2 x 4 Bent - Beam with 90 Hole Ø 4.8 | Black | 11455 | 6172966 | €0,29 |
| 4 | Technic Beam 1 x 5 Thin with Axle Holes on Ends | Black | 11478 | 6327028 | €0,25 |
| 1 | Technic Beam 3 x 5 Thick [90° Offset Centre Beam Holes] | Dark Bluish Gray | 14720 | 6396959 | €0,36 |
| 4 | Technic Axle 5 with Stop | Reddish Brown | 15462 | 6159763 | €0,11 |
| 1 | Steering Wheel Small, 2 x 2 [Reinforced] | Black | 16091 | 6057397 | €0,11 |
| 6 | Brick Round 2 x 2, Pin Holes | White | 17485 | 6218899 | €0,25 |
| 5 | Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle | Black | 18651 | 6089119 | €0,08 |
| 6 | Technic Pin Connector Round 1L [Beam] | Yellow | 18654 | 6431481 | €0,05 |
| 3 | Technic Pin Connector Round 1L [Beam] | Black | 18654 | 6392879 | €0,05 |
| 2 | Plate Special Round 2 x 2 with Center Stud (Jumper Plate) | Black | 18674 | 6195325 | €0,07 |
| 6 | Brick Round Curved 1 x 1 x 1 1/3 Quarter Dome | White | 1871 | 6442360 | €0,21 |
| 6 | Brick Round Curved 1 x 1 x 1 1/3 Quarter Dome | Black | 1871 | 6436425 | €0,21 |
| 4 | Technic Pin Connector Hub with 1 Axle | Black | 22961 | 6253260 | €0,13 |
| 3 | Technic Panel Fairing #7 3L Very Small Smooth, Side A | Yellow | 2387 | 6510995 | €0,42 |
| 3 | Technic Panel Fairing #8 3L Very Small Smooth, Side B | Yellow | 2389 | 6513879 | €0,42 |
| 2 | Technic Beam 1 x 7 Thick with Alternating Holes | Dark Bluish Gray | 2391 | 6432397 | €0,38 |
| 1 | Technic Panel Fairing #9 Medium Triangle Smooth | Sand Blue | 2395 | 6518366 | €0,41 |
| 1 | Technic Panel Fairing #10 Medium Triangle Smooth | Sand Blue | 2403 | 6518367 | €0,41 |
| 1 | Technic Panel Curved and Bent 6 x 3 | Reddish Orange | 24116 | 6476621 | €0,71 |
| 2 | Technic Axle 3 with Stop | Reddish Brown | 24316 | 6135494 | €0,07 |
| 1 | Technic Panel Round Corner 5 x 3 x 2 Left | Sand Blue | 2438 | 6518368 | €0,99 |
| 1 | Technic Panel Round Corner 5 x 3 x 2 Right | Sand Blue | 2442 | 6518371 | €0,99 |
| 2 | Technic Panel Car Mudguard Arched 9 x 2 x 3, Arched Top #42 | Sand Blue | 2459 | 6518375 | €0,94 |
| 6 | Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end | Yellow | 25214 | 6253294 | €0,23 |
| 2 | Plate Round 2 x 2 with Rounded Bottom [Boat Stud] | Trans-Yellow | 2654 | 6171728 | €0,12 |
| 3 | Plate Round 2 x 2 with Rounded Bottom [Boat Stud] | White | 2654 | 4278271 | €0,07 |
| 2 | Technic Disc 3 x 3 | Dark Orange | 2723 | 6404642 | €0,21 |
| 2 | Technic Axle Towball | Light Bluish Gray | 2736 | 4211375 | €0,13 |
| 1 | Technic Worm Gear Short | Dark Bluish Gray | 27938 | 6170153 | €0,68 |
| 3 | Technic Pin Connector Hub with 2 Axles | Dark Bluish Gray | 27940 | 6167281 | €0,17 |
| 1 | Technic Beam 2 x 3 Thick [90° Offset Centre Beam Hole] | Dark Bluish Gray | 3167 | 6475314 | €0,56 |
| 2 | Technic Pin 3/4 | Tan | 32002 | 6013938 | €0,08 |
| 2 | Technic Link 1 x 6 without Stoppers | Black | 32005a | 4629921 | €0,22 |
| 2 | Technic Beam 1 x 11.5 Double Bent Thick | Yellow | 32009 | 6271150 | €0,39 |
| 3 | Technic Axle and Pin Connector Angled #2 - 180° | Light Bluish Gray | 32034 | 6346487 | €0,11 |
| 2 | Technic Axle and Pin Connector Angled #2 - 180° | Dark Bluish Gray | 32034 | 6271876 | €0,11 |
| 4 | Technic Beam 3 x 3 L-Shape Thin | Yellow | 32056 | 6271812 | €0,31 |
| 4 | Technic Beam 3 x 3 L-Shape Thin | Black | 32056 | 6271810 | €0,31 |
| 14 | Technic Axle 2 Notched | Red | 32062 | 4142865 | €0,07 |
| 9 | Technic Axle 5 | Yellow | 32073 | 6130008 | €0,11 |
| 1 | Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced | Light Bluish Gray | 32123b | 6271165 | €0,04 |
| 6 | Technic Beam 2 x 4 L-Shape Thick | Dark Bluish Gray | 32140 | 6271830 | €0,15 |
| 2 | Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole | Light Bluish Gray | 32184 | 6276969 | €0,12 |
| 10 | Technic Gear 12 Tooth Double Bevel | Black | 32270 | 4177431 | €0,18 |
| 2 | Technic Beam 1 x 9 Bent (7 - 3) Thick | Black | 32271 | 6276835 | €0,33 |
| 4 | Technic Axle and Pin Connector Perpendicular Double | Black | 32291 | 6280394 | €0,15 |
| 4 | Technic Beam 1 x 4 Thin | Dark Bluish Gray | 32449 | 6327561 | €0,19 |
| 2 | Technic Beam 1 x 3 Thick | Yellow | 32523 | 4153707 | €0,10 |
| 3 | Technic Beam 1 x 7 Thick | Black | 32524 | 4495935 | €0,25 |
| 3 | Technic Beam 1 x 11 Thick | Dark Bluish Gray | 32525 | 4603472 | €0,33 |
| 2 | Equipment Paint Roller Brush Handle Smooth Handle | Black | 34076 | 6192778 | €0,19 |
| 2 | Technic Pin without Friction Ridges Lengthwise | Light Bluish Gray | 3673 | 4211807 | €0,05 |
| 3 | Technic Axle 4 | Red | 3705 | 6129995 | €0,08 |
| 1 | Technic Axle 6 | Black | 3706 | 370626 | €0,12 |
| 3 | Technic Bush | Light Bluish Gray | 3713 | 6275844 | €0,05 |
| 8 | Technic Axle Pin without Friction Ridges Lengthwise | Tan | 3749 | 4666579 | €0,06 |
| 1 | Brick Round 2 x 2 with Axle Hole | Medium Nougat | 3941 | 6454167 | €0,11 |
| 3 | Technic Pin Long without Friction Ridges, with Anti-Roll Notch | Tan | 39888 | 6321305 | €0,08 |
| 6 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | White | 4032a | 403201 | €0,06 |
| 1 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | Medium Nougat | 4032a | 6167643 | €0,06 |
| 4 | Technic Beam 1 x 2 Thin | Black | 41677 | 6360123 | €0,13 |
| 2 | Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes | Black | 42003 | 6273708 | €0,12 |
| 5 | Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes | Yellow | 42003 | 6273711 | €0,12 |
| 2 | Technic Axle Connector with Axle Hole [Reinforced] | Black | 42135 | 6331716 | €0,27 |
| 2 | Technic Driving Ring Connector Smooth [2 rounded and 2 flat side walls] | Black | 42195 | 6488702 | €0,13 |
| 1 | Wheel 11 x 8 with Center Groove | Light Bluish Gray | 42610 | 4211758 | €0,11 |
| 7 | Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot | Black | 42924 | 6299413 | €0,10 |
| 25 | Technic Axle Pin with Friction Ridges Lengthwise | Black | 43093 | 4206482 | €0,06 |
| 1 | Technic Axle 7 | Light Bluish Gray | 44294 | 4211805 | €0,16 |
| 1 | Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Small Squared Pin Holes] | Red | 44874 | 6323573 | €0,18 |
| 1 | Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Small Squared Pin Holes] | Black | 44874 | 6366229 | €0,18 |
| 4 | Technic Axle 3 | Light Bluish Gray | 4519 | 4211815 | €0,05 |
| 2 | Technic Beam Frame 3 x 13 with 1 Center Cross Beams, 2 Openings Thick | Black | 4526 | 6452876 | €2,37 |
| 2 | Technic Axle Connector Double Flexible [Rubber] | Black | 45590 | 4198367 | €0,17 |
| 1 | Technic Tooth 1 x 3 with Axle Hole [Hollow Underside] | Black | 48267 | 6288220 | €0,11 |
| 2 | Hinge Cylinder 1 x 2 Locking with 1 Finger and Axle Hole On Ends [No Side Slots] | Light Bluish Gray | 53923 | 6265704 | €0,08 |
| 1 | Technic Axle 5.5 with Stop [Rounded Short End] | Dark Bluish Gray | 59426 | 4508553 | €0,11 |
| 9 | Technic Axle Connector Smooth [with x Hole + Orientation] | Dark Bluish Gray | 59443 | 4516546 | €0,06 |
| 1 | Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole | Dark Bluish Gray | 60483 | 6265093 | €0,07 |
| 2 | Technic Beam 3 x 3 T-Shape Thick | Black | 60484 | 4552347 | €0,18 |
| 32 | Technic Pin with Friction Ridges Lengthwise with No Center Slots | Black | 61332 | 6279875 | €0,06 |
| 2 | Slope 18° 2 x 1 x 2/3 with 4 Slots / Grate | Dark Bluish Gray | 61409 | 4540386 | €0,06 |
| 1 | Technic Universal Joint 3L [Complete Assembly] | Light Bluish Gray | 61903 | 6335279 | €0,74 |
| 2 | Technic Pin Connector Round [Slotted] | Black | 62462 | 6173119 | €0,06 |
| 2 | Technic Pin Connector Round [Slotted] | Yellow | 62462 | 6173122 | €0,06 |
| 1 | Technic Panel Fairing #6 Long Smooth, Side B | Sand Blue | 64393 | 6462573 | €0,74 |
| 1 | Technic Panel Fairing #5 Long Smooth, Side A | Sand Blue | 64681 | 6518389 | €0,74 |
| 17 | Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole] | Black | 65304 | 6321745 | €0,13 |
| 3 | Technic Axle and Pin Connector Perpendicular | Light Bluish Gray | 6536 | 6261375 | €0,10 |
| 4 | Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Square Holes] | Dark Bluish Gray | 65487 | 6282144 | €0,11 |
| 4 | Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Square Holes] | Yellow | 65487 | 6282151 | €0,11 |
| 1 | Technic Axle 3 with Stud | Dark Tan | 6587 | 6031821 | €0,10 |
| 2 | Technic Gear 12 Tooth Bevel | Tan | 6589 | 4565452 | €0,10 |
| 2 | Technic Beam 1 x 9 Bent (6 - 4) Thick | Yellow | 6629 | 6524459 | €0,34 |
| 2 | Technic Pin with Friction Ridges Lengthwise and Towball - Round Pin Hole | Red | 66906 | 6360104 | €0,11 |
| 3 | Wheel 41 x 15 | Black | 68327 | 6518392 | €1,15 |
| 1 | Windscreen 8 x 8 x 3 Dome with Dual 2 Fingers - 7 Teeth | Trans-Clear | 69320 | 6514330 | €3,88 |
| 1 | Technic Gear 20 Tooth with Axle Hole [+ Opening] | Dark Azure | 69779 | 6396480 | €0,35 |
| 2 | Technic Axle and Pin Connector Perpendicular Double Split [Reinforced] | Black | 69819 | 6349281 | €0,46 |
| 6 | Technic Beam 2 x 3 L-Shape with Quarter Ellipse Thick | Sand Blue | 71708 | 6518364 | €0,22 |
| 1 | Technic Beam 1 x 15 Thick with Alternating Holes | Dark Bluish Gray | 71710 | 6396963 | €0,76 |
| 1 | Technic Pin Long 3l, No Friction Ridges, with Stop and Hole | Light Bluish Gray | 77765 | 6338962 | €0,18 |
| 2 | Bar 2L with Stop in Center | Black | 78258 | 6371584 | €0,10 |
| 2 | Technic Pin Connector Toggle Joint Smooth Double with Axle and Pin Holes | Black | 87408 | 6278412 | €0,47 |
| 3 | Propeller 7 Blade 6 Diameter | Flat Silver | 87751 | 6493590 | €0,67 |
| 24 | Technic Pin 1/2 with Friction | Red | 89678 | 6378120 | €0,08 |
| 6 | Tile Round 1 x 1 | Trans-Yellow | 98138 | 6274740 | €0,05 |
| 2 | Technic Axle 4 with Centre Stop | Tan | 99008 | 4666999 | €0,10 |

## Notes

- Track which of these parts you own and see what is missing: https://www.brickmissing.com/sets/42201-1-deep-sea-research-submarine
- 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/42201-1-deep-sea-research-submarine