How many pieces does the LEGO Brick-Built Mosasaurus Boat Mission (76974-1) have?

The LEGO Brick-Built Mosasaurus Boat Mission set (76974-1) contains 858 pieces. It was released in 2025 as part of the LEGO Jurassic World theme.

How can I find missing parts for LEGO set 76974-1?

On BrickMissing you can check which parts from the LEGO Brick-Built Mosasaurus Boat Mission (76974-1) you already own. Add your LEGO collection and we'll show exactly which of the 858 pieces you're missing and which you already have.

Can I build the LEGO Brick-Built Mosasaurus Boat Mission with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 858 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Brick-Built Mosasaurus Boat Mission from?

The LEGO Brick-Built Mosasaurus Boat Mission (76974-1) belongs to the LEGO Jurassic World theme. You can browse all Jurassic World sets on BrickMissing to find more sets from this theme.

Brick-Built Mosasaurus Boat Mission - View 6

Brick-Built Mosasaurus Boat Mission

🏷️ 76974-1•🎨 Jurassic World•📅 2025•🧱 858 parts•Advanced

The LEGO Jurassic World 76974-1 Brick-Built Mosasaurus Boat Mission set stages a dramatic encounter in the ocean depths, featuring 858 pieces. This detailed model includes a fully articulated Mosasaurus figure, boasting movable fins, a poseable tail, and an opening jaw for dynamic display or play. The set also features a compact boat vehicle for minifigures LeClerc and Atwater, who are equipped with a syringe case containing 5 sample syringes. Two distinct ocean reef builds are provided; one secures the boat, while the other serves as a display stand for the impressive sea dinosaur. This comprehensive set recreates an exciting aquatic expedition, ready for diverse action scenarios.

Parts Inventory

🧱 858 parts

Part	Color	Qty
Sticker Sheet for Set 76974-1 10114025	Unknown	1×
Slope Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] 11153	Dark Brown	1×
Brick Special 1 x 2 with 2 Studs on 1 Side 11211	White	2×
Plate 3 x 3 11212	Olive Green	1×
Plate 3 x 3 11212	White	5×
Slope, Curved 2 x 8 x 2 Inverted Double 11301	White	2×
Slope Curved 2 x 1 No Studs [1/2 Bow] 11477	Bright Pink	1×
Slope Curved 2 x 1 No Studs [1/2 Bow] 11477	Olive Green	18×
Slope Curved 2 x 1 No Studs [1/2 Bow] 11477	Lime	3×
Slope Curved 2 x 1 No Studs [1/2 Bow] 11477	Dark Brown	32×

Showing 10 of 238 parts

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Slope, Curved 2 x 8 x 2 Inverted Double	11301	White	2×
Slope Curved 2 x 1 No Studs [1/2 Bow]	11477	Bright Pink	1×
Slope Curved 2 x 1 No Studs [1/2 Bow]	11477	Olive Green	18×
Slope Curved 2 x 1 No Studs [1/2 Bow]	11477	Lime	3×
Slope Curved 2 x 1 No Studs [1/2 Bow]	11477	Dark Brown	32×
Slope Curved 2 x 1 No Studs [1/2 Bow]	11477	Light Bluish Gray	4×
Slope Curved 2 x 1 No Studs with Yellow Eye Left, Dark Brown Shape print	11477pr0045	Olive Green	1×
Slope Curved 2 x 1 No Studs with Yellow Eye Right, Dark Brown Shape print	11477pr0046	Olive Green	1×
Slope Curved 4 x 1 Inverted	13547	Black	1×
Plate Special 1 x 2 with 5.9mm Centre Side Towball	14417	Dark Bluish Gray	8×
Plate Special 1 x 2 5.9mm Towball Socket	14418	Light Bluish Gray	8×
Plate Special 1 x 2 5.9mm Centre Side Towball Socket	14704	Light Bluish Gray	10×
Slope Curved 2 x 2 x 2/3	15068	Olive Green	2×
Slope Curved 2 x 2 x 2/3	15068	White	1×
Slope Curved 2 x 2 x 2/3 with Dark Brown/Dark Orange Shapes print	15068pr0102	Olive Green	8×
Plate Special 1 x 2 with Three Teeth [Tri-Tooth]	15208	Tan	12×
Weapon Gun Automatic Pistol with Top Clip	15445	Dark Bluish Gray	2×
Plate Special 2 x 2 with Towball and Hole	15456	Black	5×
Plate Special 2 x 2 with Towball and Hole	15456	Light Bluish Gray	3×
Slope 45° 2 x 1 Triple with Inside Stud Holder	15571	Dark Bluish Gray	3×
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)	15573	Dark Bluish Gray	4×
Slope 45? 2 x 1 with 2/3 Cutout [New Version]	15672	White	16×
Slope 45? 2 x 1 with 2/3 Cutout [New Version]	15672	Dark Brown	1×
Tile Round 1 x 2 Half Circle	1748	Trans-Clear	4×
Plate Round Corners 2 x 6 Double	18980	Dark Azure	4×
Tile Round 1 x 1 with Hollow Bar	20482	Dark Green	3×
Slope 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid]	22388	Light Bluish Gray	5×
Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side	22885	Red	4×
Plate Special 1 x 2 with End Towball	22890	Dark Bluish Gray	2×
Bar Holder with Hole and Bar Handle	23443	Red	2×
Brick 2 x 2 Corner	2357	Dark Bluish Gray	1×
Tile Special 1 x 2 Grille with Bottom Groove	2412b	Black	5×
Plate 2 x 2 Corner	2420	Light Bluish Gray	1×
Plate 2 x 2 Corner	2420	Dark Tan	8×
Plate 2 x 2 Corner	2420	Dark Bluish Gray	2×
Tile 1 x 4 with Groove	2431	Bright Pink	1×
Tile 1 x 4 with Groove	2431	Red	4×
Tile 1 x 4 with Groove	2431	Dark Brown	1×
Tile 1 x 4 with Groove	2431	Olive Green	2×
Tile Special 1 x 2 with Handle	2432	Red	2×
Tile Special 1 x 2 with Handle	2432	White	1×
Wedge Plate 3 x 3 Cut Corner	2450	Dark Tan	4×
Brick 2 x 6	2456	White	1×
Tile Round 1 x 1 Quarter	25269	Olive Green	28×
Tile Round 1 x 1 Quarter	25269	Dark Brown	30×
Tile Round 1 x 1 Quarter	25269	White	16×
Antenna 8H Whip	2569	Black	1×
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]	2654	Dark Bluish Gray	7×
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]	2654	Black	8×
Wedge Plate 2 x 2 Cut Corner	26601	Black	4×
Wedge Plate 2 x 2 Cut Corner	26601	Olive Green	8×
Tile 2 x 3	26603	Yellow	1×
Plant, Fern 2 x 3 x 2	2682	Dark Green	3×
Tile Special 2 x 2 Corner with Cut Corner - Facet	27263	Light Bluish Gray	4×
Slope Inverted 33° 3 x 2, Round Bottom Pin	2752	White	2×
Bracket 1 x 2 - 1 x 4 [Rounded Corners at Bottom, Square Corners at Top]	28802	Red	6×
Slope Curved 2 x 1 with Stud Notch Right	29119	Dark Brown	17×
Slope Curved 2 x 1 with Stud Notch Right	29119	Olive Green	3×
Slope Curved 2 x 1 with Stud Notch Left	29120	Olive Green	3×
Slope Curved 2 x 1 with Stud Notch Left	29120	Dark Brown	17×
Lever Small Base with Black Lever	298c02	Red	1×
Brick 1 x 2	3004	Dark Red	3×
Brick 1 x 2	3004	Dark Orange	1×
Brick 1 x 2	3004	White	2×
Brick 1 x 1	3005	Trans-Clear	2×
Brick 1 x 6	3009	Dark Bluish Gray	1×
Brick 1 x 4	3010	Yellow	2×
Plate 2 x 4	3020	Olive Green	7×
Plate 2 x 4	3020	White	4×
Plate 2 x 4	3020	Dark Tan	10×
Plate 2 x 4	3020	Dark Brown	6×
Plate 2 x 3	3021	Magenta	2×
Plate 2 x 3	3021	Black	2×
Plate 2 x 3	3021	Dark Pink	2×
Plate 2 x 3	3021	Dark Tan	15×
Plate 2 x 3	3021	White	4×
Plate 2 x 2	3022	White	2×
Plate 2 x 2	3022	Dark Tan	2×
Plate 1 x 2	3023	Dark Bluish Gray	2×
Plate 1 x 2	3023	Olive Green	7×
Plate 1 x 2	3023	White	2×
Plate 1 x 2	3023	Dark Orange	2×
Plate 1 x 2	3023	Light Bluish Gray	2×
Plate 1 x 1	3024	Dark Brown	1×
Plate 1 x 1	3024	Olive Green	5×
Plate 1 x 1	3024	Dark Orange	2×
Plate 4 x 10	3030	Dark Bluish Gray	2×
Plate 4 x 4	3031	Light Bluish Gray	1×
Plate 4 x 4	3031	Medium Azure	1×
Slope 45° 2 x 1 with Bottom Pin	3040b	Dark Bluish Gray	5×
Brick Special 1 x 4 with 4 Studs on One Side	30414	Reddish Brown	6×
Tile 2 x 2 with Groove	3068b	Black	1×
Tile 1 x 2 with Groove	3069b	Olive Green	3×
Tile 1 x 2 with Groove	3069b	Dark Brown	1×
Tile 1 x 2 with Groove	3069b	Red	4×
Tile 1 x 2 with Controls, Slides, Joystick print	3069bpr0307	Light Bluish Gray	1×
Tile 1 x 1 with Groove	3070b	Dark Brown	12×
Tile 1 x 1 with Groove	3070b	Red	2×
Tile 1 x 1 with Groove	3070b	Yellow	1×
Tile 1 x 1 with Groove	3070b	Olive Green	4×
Tile 1 x 1 with Groove	3070b	White	2×
Technic Axle and Pin Connector Angled #6 - 90°	32014	Red	2×
Technic Axle 2 Notched	32062	Black	2×
Slope Curved 2 x 2 x 2/3 Inverted	32803	White	1×
Slope 33° 3 x 2	3298	White	1×
Plate 1 x 1 x 2/3 Half Round with Side Stud	3386	Black	4×
Plate Special 2 x 2 with Only 2 studs	33909	Olive Green	3×
Plate Special 4 x 4 with 3 x 3 Quarter Round Cutout	35044	Medium Azure	2×
Technic Driving Ring Extension, 8 Ridges	35186	Dark Bluish Gray	1×
Windscreen 3 x 6 x 1 Curved with Rectangular Stud Holder in Bottom	35299	Trans-Clear	1×
Plate Special 1 x 2 Rounded with 2 Open Studs	35480	Tan	26×
Plate 1 x 3	3623	Yellow	2×
Plate 1 x 3	3623	Tan	2×
Plate 1 x 3	3623	White	2×
Plate 1 x 3	3623	Olive Green	3×
Plate 1 x 3	3623	Red	1×
Plate 1 x 3	3623	Dark Bluish Gray	2×
Plate 1 x 3	3623	Dark Tan	2×
Slope Inverted 45° 2 x 1	3665	Black	2×
Slope Inverted 45° 2 x 1	3665	White	1×
Plate 1 x 6	3666	Dark Brown	1×
Plate 1 x 6	3666	White	2×
Plate 1 x 6	3666	Olive Green	7×
Bracket 1 x 1 - 1 x 1 Inverted	36840	Light Bluish Gray	4×
Bracket 1 x 1 - 1 x 1 Inverted	36840	Black	4×
Bracket 1 x 1 - 1 x 1	36841	Tan	4×
Plate 1 x 4	3710	Dark Brown	1×
Plate 1 x 4	3710	White	4×
Plate 1 x 4	3710	Black	2×
Plate 1 x 4	3710	Dark Orange	8×
Plate 1 x 4	3710	Dark Red	1×
Plate 1 x 4	3710	Light Bluish Gray	1×
Plate 2 x 6	3795	Dark Tan	2×
Plate 2 x 6	3795	Dark Brown	1×
Plate 2 x 6	3795	Dark Bluish Gray	1×
Equipment Magnifying Glass with Thick Frame, Hollow Handle, Trans-Clear Lens	38648pat0001	Black	1×
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)	4032a	Red	13×
Seat / Chair 2 x 2	4079	Sand Blue	1×
Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring]	4081b	White	2×
Plate Special 1 x 4 with 2 Studs with Groove [New Underside]	41740	Yellow	1×
Plate Special 1 x 4 with 2 Studs with Groove [New Underside]	41740	Black	1×
Plate Special 1 x 2 with Ladder	4175	Dark Bluish Gray	2×
Slope 33° 3 x 1	4286	Light Bluish Gray	2×
Slope 33° 3 x 1	4286	Dark Tan	2×
Slope Inverted 33° 3 x 1 with Internal Stopper and No Front Stud Connection	4287c	White	2×
Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised - Updated Version	4304	Black	6×
Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised - Updated Version	4304	Light Bluish Gray	6×
Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun	4349	Black	1×
Wedge Plate 3 x 2 Right	43722	Dark Brown	1×
Wedge Plate 3 x 2 Left	43723	Dark Brown	1×
Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove	44301a	Red	1×
Bracket 1 x 2 - 2 x 2	44728	Red	2×
Plate 1 x 10	4477	Dark Brown	2×
Plate Special 1 x 2 [Open O Top Clip]	44861	White	6×
Technic Axle 3	4519	Light Bluish Gray	1×
Slope 1 x 6 x 1 with 1 x 2 x 1/3 Cutout	4569	White	1×
Brick Special 1 x 1 Studs on 4 Sides	4733	Light Bluish Gray	3×
Brick Special 1 x 1 with Studs on 2 Sides	47905	White	1×
Plate Special 1 x 2 [Side Handle Closed Ends]	48336	Black	1×
Panel 1 x 2 x 1 [Rounded Corners]	4865b	Yellow	3×
Plate Special 1 x 1 with Tooth	49668	Tan	2×
Plate Special 2 x 2 with Horizontal T-Bar Underneath	5066	Dark Bluish Gray	1×
Tile 1 x 2 with Stud Notch Left	5091	Dark Orange	5×
Tile 1 x 2 with Stud Notch Right	5092	Dark Orange	5×
Wedge Plate 2 x 4	51739	Dark Bluish Gray	1×
Wedge Plate 2 x 4	51739	Light Bluish Gray	6×
Brick Special 1 x 2 with Studs on 2 Sides	52107	Reddish Brown	3×
Brick Special 1 x 2 with Studs on 2 Sides	52107	Dark Tan	1×
Equipment Medical Syringe with 2 Holes	53020	Yellow	1×
Equipment Medical Syringe with 2 Holes	53020	Light Bluish Gray	1×
Equipment Medical Syringe with 2 Holes	53020	Bright Light Blue	1×
Slope 18° 2 x 1 x 2/3	5404	White	6×
Slope Curved 8 x 8 x 2 Inverted Double	54091	Light Bluish Gray	1×
Slope 30° 1 x 1 x 2/3 (Cheese Slope)	54200	Dark Brown	32×
Wedge Plate 6 x 3 Right	54383	Dark Bluish Gray	1×
Wedge Plate 6 x 3 Left	54384	Dark Bluish Gray	1×
Hinge Plate 1 x 2 Locking with 2 Fingers On End, without Groove, 7 Teeth	54657	Reddish Brown	1×
Tile Round 2 x 2 Half Circle	5520	White	2×
Slope 1 x 4 with 1 x 2 Cutout	5654	Dark Brown	3×
Technic Brick Modified 2 x 2 with Ball and Axle Hole, with 6 Holes in Ball	57909b	Black	1×
Brick Curved 1 x 2 x 1 with Curved Top	5841	Olive Green	4×
Technic Axle Connector Smooth [with x Hole + Orientation]	59443	Red	1×
Brick Special 1 x 1 with Clip Horizontal	60476	Black	2×
Slope 65° 2 x 1 x 2	60481	Red	2×
Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]	60897	Dark Bluish Gray	3×
Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip]	61252	Trans-Clear	1×
Technic Pin with Friction Ridges Lengthwise with No Center Slots	61332	Black	7×
Plate Round 1 x 1 with Solid Stud	6141	Black	4×
Plate Round 1 x 1 with Solid Stud	6141	Magenta	5×
Plate Round 1 x 1 with Solid Stud	6141	Trans-Clear	3×
Plate Round 1 x 1 with Solid Stud	6141	Trans-Orange	2×
Plate Special 4 x 4 with Studs on One Edge [Plain]	6179	Light Bluish Gray	1×
Panel 1 x 1 x 1 Corner	6231	Yellow	3×
Tile 1 x 3	63864	Magenta	1×
Animal, Fish [Hollow Stud Mouth]	64648	Orange	1×
Plate Special 4 x 4 with 2 x 2 Opening	64799	Light Bluish Gray	2×
Plate Special 1 x 6 with Train Wagon End Fence	6583	Light Bluish Gray	1×
Tile 1 x 6 with Groove	6636	White	2×
Aircraft Fuselage Curved Forward 8 x 12 x 2 Bottom	67243	White	1×
Technic Axle Connector 2 x 3 with Ball Socket, Closed Sides	67695	Reddish Brown	1×
Hair Small Tuft	68212	Olive Green	3×
Technic Brick 1 x 1 with Axle Hole	73230	Red	2×
Bracket 1 x 1 - 1 x 2 Inverted	73825	White	2×
Hose Rigid 3mm D. 10L / 8.0cm	75c10	White	2×
Plate Special 1 x 2 with Clip Vertical on End	78256	Red	1×
Bar 2L with Stop in Center	78258	Red	2×
Plate 1 x 5	78329	White	4×
Wedge Plate 6 x 2 Left	78443	Dark Brown	3×
Wedge Plate 6 x 2 Right	78444	Dark Brown	3×
Bracket 1 x 1 - 1 x 2	79389	Red	2×
Slope 30? 1 x 2 x 2/3	85984	Red	1×
Slope 30° 1 x 2 x 2/3 with Buttons And Red Screens Print	85984pr0006	Dark Bluish Gray	1×
Plate 1 x 1 x 2/3 with Open Stud	86996	Red	3×
Tile 2 x 4 with Groove	87079	Dark Brown	2×
Brick Special 1 x 1 with Stud on 1 Side	87087	Tan	2×
Brick Special 1 x 1 with Stud on 1 Side	87087	Light Bluish Gray	3×
Panel 1 x 2 x 2 [Side Supports / Hollow Studs]	87552	Light Bluish Gray	2×
Plate Special 2 x 2 with Groove and Center Stud (Jumper)	87580	Light Bluish Gray	2×
Wedge 2 x 2 Facet	87620	White	2×
Brick Arch 1 x 6 Raised Arch	92950	Red	1×
Brick and Axle Separator v2.0	96874	Orange	1×
Bracket 1 x 2 - 2 x 2 Inverted	99207	White	2×
Bracket 1 x 2 - 1 x 2 Inverted	99780	Light Bluish Gray	2×
Bracket 1 x 2 - 1 x 2 Inverted	99780	Black	2×
Bracket 1 x 2 - 1 x 2	99781	White	4×
Hair Spiked	98385	Dark Tan	1×
Minifig Head, Dark Brown Furrowed Eyebrows, White Pupils, Straight Line Mouth (Frown) and Curved Chin Line Print	3626cpr1709	Light Nougat	1×
Hips and Tan Legs with Pocket, Dark Brown Belt, Light Nougat Knees print	970c26pr0008	Tan	1×
Torso, Jacket, Dark Tan Tactical Gear, Pockets, Yellow Jurassic Park Logo print, Tan Arms, Light Nougat Hands	973c26h02pr0004	Tan	1×
Hips and Black Legs	970c03	Black	1×
Hat / Cap Short Curved Bill with Seams and Hole on Top	11303	Dark Brown	1×
Torso, Jacket with Dark Blue Stripes, Dark Brown Shirt, Red Handkerchief, Tan Bag print, Reddish Brown Arms and Hands	973c19h19pr0001	Dark Tan	1×
Minifig Head Karamo, Thick Eyebrows, Beard, Smile Showing Teeth Print	3626cpr3487	Reddish Brown	1×

Build DNA

Parts inventory insights for Brick-Built Mosasaurus Boat Mission

858 pieces puts this build +147% against the average Jurassic World set and +35% against the average 2025 release.

LEGOJURASSIC WORLD

Vs average Jurassic World set

+147%+511 parts

This set858

Average set347

Average Jurassic World set: 347 pieces across 99 other sets.

Vs average 2025 set

+35%+222 parts

This set858

Average set636

Average 2025 set: 636 pieces across 561 other sets.

Color profile

27different colors

Dominant color

Dark Brown

Dark Brown170x

20%

Olive Green121x

14%

White112x

13%

Light Bluish Gray77x

Unique parts

5.2 pieces per unique type

166

Repeat factor

Average pieces per unique type.

Most used part

Tile Round 1 x 1 Quarter

74x

Results are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.

This site is not affiliated with or endorsed by the LEGO Group.

Build Insights🧩166unique parts🎨27different colors📊31.8avg. parts per color🏆74×Tile Round 1 x 1 Quarter

🎨 All Jurassic World sets 📅 All sets from 2025

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