# LEGO 40912-1 — Sea Serpent (2026)

Source: https://www.brickmissing.com/sets/40912-1-sea-serpent
Publisher: BrickMissing (https://www.brickmissing.com) — free LEGO parts checker. Not affiliated with the LEGO Group.

The LEGO Ideas Sea Serpent (40912) recreates a classic, rebooting the beloved 1992 Sea Serpent set. This specific design won the prestigious LEGO Ideas ‘A Twist of Nostalgia’ competition, reviving an iconic build for enthusiasts. The ship model features a carefully crafted fabric sail, designed to give an authentic feel to the vessel's movement. Functional moving rudders allow for dynamic positioning, complementing the detailed cargo hold beneath the deck. Two brave knight minifigures stand ready for high-seas adventure, complete with their medieval regalia. With its modular stern, the Sea Serpent offers construction versatility and becomes a distinctive display piece, adding throwback adventure to any shelf or desk setup.

## Set facts

- Set number: 40912-1
- Name: Sea Serpent
- Theme: LEGO Ideas and CUUSOO › Promotional
- Released: 2026
- Pieces: 241
- Distinct part + colour lots: 94
- Build difficulty: intermediate
- Repairability: 14.9% of this set's lots are hard to replace (14 of 94 part+colour combinations appear in three or fewer sets in the entire LEGO catalog).

## Complete parts list (94 lots, 241 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 |
| ---: | --- | --- | --- | --- | --- |
| 2 | MINI BODY LOWER PART BLACK | Black | 73200 | — | — |
| 2 | Plate 2 x 3 | Black | 3021 | 302126 | €0,13 |
| 5 | Plate 1 x 2 | Black | 3023 | 302326 | €0,08 |
| 1 | Slope 45? 2 x 2 | Black | 3039 | 303926 | €0,11 |
| 2 | ROUND BRICK 1X1 | Black | 3062 | — | — |
| 3 | Plate 1 x 4 | Black | 3710 | 371026 | €0,12 |
| 1 | Hinge Brick 1 x 2 Base | Black | 3937 | 393726 | €0,10 |
| 1 | Hinge Brick 2 x 2 Top Plate Thin | Black | 6134 | 4124096 | €0,15 |
| 1 | Plate Special 1 x 2 [Side Handle Closed Ends] | Black | 48336 | 4225201 | €0,07 |
| 1 | Wedge Plate 2 x 4 | Black | 51739 | 4531412 | €0,10 |
| 2 | Weapon Lightsaber Hilt with Bottom Ring | Black | 64567 | 4598897 | €0,05 |
| 2 | Slope Curved 4 x 1 Double with No Studs | Black | 93273 | 4613153 | €0,15 |
| 1 | Brick Arch 1 x 6 Raised Arch | Black | 92950 | 4620763 | €0,19 |
| 2 | Brick Special 1 x 2 Palisade [aka Log] | Black | 30136 | 4644456 | €0,10 |
| 1 | Tile Round 2 x 2 with Hole | Black | 15535 | 6143850 | €0,07 |
| 13 | Plate Special 1 x 2 Rounded with 2 Open Studs | Black | 35480 | 6210270 | €0,07 |
| 6 | Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side | Black | 32952 | 6228987 | €0,10 |
| 2 | Brick Special 1 x 2 x 1 2/3 with 8 Studs on 3 Sides | Black | 67329 | 6308883 | €0,36 |
| 1 | PLATE 1X2 W/HOLDER, VERTICAL | Black | 49563 | — | — |
| 1 | Tile Special 2 x 2 with Top Pin [Squared Holes] | Black | 49153 | 6313191 | €0,18 |
| 1 | Plate Special 2 x 2 x 2/3 with Axle Hole and Grill on Sides (Haybale) | Black | 71752 | 6325254 | €0,40 |
| 2 | Brick Curved 2 x 1 with Inverted Cutout | Black | 78666 | 6369578 | €0,10 |
| 2 | LEFT SHELL 2X10X2, OUTSIDE BOW, W/ CUT | Black | 4581 | — | — |
| 2 | RIGHT SHELL 2X10X2, OUTSIDE BOW, W/ CUT | Black | 4308 | — | — |
| 4 | HINGE PLATE 1X2, NO. 2 | Black | 106401 | — | — |
| 1 | Technic Axle 10 | Black | 3737 | 373726 | €0,25 |
| 1 | 1/2 BUSH | Black | 42136 | — | — |
| 2 | Plate 1 x 6 | Tan | 3666 | 4124067 | €0,17 |
| 2 | FLAT TILE 1X2 | Dark Blue-Violet | 3069 | — | — |
| 2 | Tile 1 x 8 with Groove | Dark Blue | 4162 | 4507080 | €0,15 |
| 1 | Wedge Plate 3 x 2 Right | Dark Blue | 43722 | 6251382 | €0,15 |
| 1 | Wedge Plate 3 x 2 Left | Dark Blue | 43723 | 6251381 | €0,15 |
| 10 | Tile 2 x 2 Corner | Dark Blue | 14719 | 6103392 | €0,06 |
| 8 | Plate 1 x 1 x 2/3 Half Round with Side Stud | Black | 3386 | 6482573 | €0,10 |
| 4 | Technic Axle Pin with Friction Ridges Lengthwise | Black | 43093 | 4206482 | €0,06 |
| 1 | Plate 2 x 16 | Red | 4282 | 428221 | €0,51 |
| 4 | Brick Curved 1 x 2 x 1 2/3 with 1 Cutout | Red | 5907 | 6547136 | €0,24 |
| 1 | MINI HEAD, NO. 4031 | Yellow | 103184 | — | — |
| 1 | MINI HEAD NO. 2113 | Yellow | 29627 | — | — |
| 1 | PLATE 2X2 ROUND | Light Lime | 4032 | — | — |
| 6 | Slope 18° 2 x 1 x 2/3 | Light Nougat | 5404 | 6522255 | €0,17 |
| 1 | BARREL 2X2 | Light Lime | 7792 | — | — |
| 1 | FLAT TILE 1X2 | Dark Bluish Gray | 3069 | — | — |
| 1 | PLATE 2X2 W 1 KNOB | Dark Bluish Gray | 23893 | — | — |
| 6 | Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side | Dark Bluish Gray | 32952 | 6228923 | €0,10 |
| 1 | Technic Pin 1/2 with Friction | Dark Bluish Gray | 89678 | 6395635 | €0,08 |
| 1 | STREAMER | Chrome Pink | 4495 | — | — |
| 1 | FLAT TILE 1X1, ROUND 'NO. 18' | Pearl Very Light Gray | 15828 | — | — |
| 2 | Container Box 2 x 2 x 1 Reinforced Bottom | Light Bluish Gray | 2821 | 6435835 | €0,29 |
| 1 | Tile 2 x 3 | Light Bluish Gray | 26603 | 6171894 | €0,11 |
| 6 | Plate 1 x 1 x 2/3 Half Round with Side Stud | Light Bluish Gray | 3386 | 6448793 | €0,10 |
| 6 | Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised - Updated Version | Light Bluish Gray | 4304 | 6469440 | €0,11 |
| 2 | Wedge Plate 4 x 2 Right | Black | 41769 | 6430076 | €0,11 |
| 2 | Wedge Plate 4 x 2 Left | Black | 41770 | 6430083 | €0,11 |
| 2 | Plate 2 x 4 | Black | 3020 | 302023 | €0,15 |
| 4 | Plate 2 x 3 | Black | 3021 | 302123 | €0,13 |
| 2 | Plate 1 x 4 | Black | 3710 | 371023 | €0,12 |
| 1 | Plate 2 x 6 | Black | 3795 | 379523 | €0,19 |
| 1 | Plate 4 x 6 | Black | 3032 | 303226 | €0,41 |
| 2 | Cone 1 x 1 [Top Groove] | Black | 59900 | 4529235 | €0,05 |
| 4 | WHIP/AERIAL | Reddish Brown | 3957 | — | — |
| 2 | Plate Special 2 x 2 with Groove and Center Stud (Jumper) | Black | 87580 | 6126049 | €0,07 |
| 1 | Tile 2 x 4 with Groove | Black | 87079 | 4560180 | €0,16 |
| 2 | Equipment Oar / Paddle [Reinforced] | Reddish Brown | 87585 | 4609635 | €0,17 |
| 3 | Window 1 x 2 x 2 Castle | Black | 90195 | 6398861 | €0,15 |
| 2 | Tile Round 1 x 1 Quarter | Black | 25269 | 6302961 | €0,05 |
| 2 | Bracket 1 x 2 - 1 x 2 Inverted | Black | 99780 | 6133721 | €0,10 |
| 6 | Bracket 1 x 1 - 1 x 1 Inverted | Black | 36840 | 6234695 | €0,06 |
| 1 | PLATE 1X2 W. VERTICAL SCHAFT | Reddish Brown | 43876 | — | — |
| 1 | FLAT TILE 1X1, ROUND | Reddish Brown | 35381 | — | — |
| 10 | Bracket 1 x 1 - 1 x 2 Inverted | Black | 73825 | 6335317 | €0,10 |
| 2 | Wedge Plate 2 x 2 Right | Black | 24307 | 6141556 | €0,10 |
| 2 | Wedge Plate 2 x 2 Left | Black | 24299 | 6141554 | €0,10 |
| 4 | Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip] | Black | 3484 | 6439050 | €0,07 |
| 2 | Bracket 1 x 1 - 1 x 2 | Black | 79389 | 6380236 | €0,10 |
| 2 | Wedge Plate 6 x 3 Left | Black | 54384 | 4283047 | €0,16 |
| 2 | Wedge Plate 6 x 3 Right | Black | 54383 | 4543089 | €0,16 |
| 2 | Technic Axle Connector Smooth [with x Hole + Orientation] | Black | 59443 | 4512363 | €0,06 |
| 3 | TUBE, W/ DOUBLE 4.85 HOLE | Reddish Brown | 29219 | — | — |
| 2 | CROSS HOLES W/ DOUBLE, DIA. 3.2 SHAFT | Reddish Brown | 49133 | — | — |
| 1 | Weapon Pike / Spear Round End | Black | 4497 | 449726 | — |
| 2 | Helmet Castle with Neck Protector | Flat Silver | 3844 | 6037507 | €0,29 |
| 1 | Weapon Sword with Thick Crossguard (Roman Gladius) | Flat Silver | 18034 | 6093532 | €0,17 |
| 1 | AXE HEAD W HOLE Ø 3.2 | Silver Metallic | 79805 | — | — |
| 1 | CUP WITHOUT WREATH | Medium Lime | 6269 | — | — |
| 8 | Plate Round 1 x 1 with Solid Stud | Yellow | 6141 | 614124 | €0,05 |
| 2 | Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] | Yellow | 99563 | 6437958 | €0,05 |
| 2 | STREAMER | Medium Lime | 4495 | — | — |
| 1 | FLAT TILE 1X1, ROUND, NO. 178 | Medium Lime | 84438 | — | — |
| 3 | BARS FOR FRAME 1X2X2 | Medium Lime | 3273 | — | — |
| 2 | Plate 2 x 4 | White | 3020 | 302001 | €0,15 |
| 2 | Plate 1 x 2 | White | 3023 | 302301 | €0,08 |
| 4 | Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side | White | 22885 | 6218823 | €0,17 |
| 1 | SHAFT 3M Ø3.2 | White | 17715 | — | — |

## Notes

- Track which of these parts you own and see what is missing: https://www.brickmissing.com/sets/40912-1-sea-serpent
- 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/40912-1-sea-serpent