LEGO 76974 Brick-Built Mosasaurus Boat Mission: Set Guide

Specifications

Set number	76974
Release year	2025
Piece count	858
Minifigures	2
Theme	Jurassic World
Building instructions	Download the instructions on lego.com

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Set 76974, Brick-Built Mosasaurus Boat Mission, depicts a boat mission with a brick-built Mosasaurus in the LEGO Jurassic World universe. Released in 2025, it contains 858 pieces and belongs to the Jurassic World theme.

Brick-Built Mosasaurus Boat Mission presents a water-based scene focused on a large prehistoric marine reptile. The set sits within LEGO Jurassic World, a theme that turns the licensed setting into missions, encounters, and creature-focused builds. Here, the notable subject is a Mosasaurus represented as a brick-built model.

The build uses 858 pieces and pairs the Mosasaurus with a mission boat, along with scene elements or equipment suited to the action. The included minifigures are Atwater and LeClerc.

It can serve both as a play set and as a display piece within a LEGO Jurassic World collection.

Inventory of set 76974

The inventory of set 76974 lists 858 pieces, spare parts excluded: 238 different lots (one shape in one color) for 166 part shapes. The box also contains 32 spare parts, for small elements that are easy to lose.

Colors of set 76974

Main color: dark brown, making up 20% of the parts, followed by olive green (14%) and white (13%).

Color	Parts	Share
Dark Brown	170	20%
Olive Green	121	14%
White	112	13%
Light Bluish Gray	77	9%
Black	68	7.9%
Red	59	6.9%
Dark Bluish Gray	53	6.2%
Tan	50	5.8%
Dark Tan	48	5.6%
Dark Orange	23	2.7%
Other colors (16)	76	8.9%

Part types

Type	Parts	Share
Plates	154	18%
Plates Special	131	15%
Bricks Sloped	88	10%
Bricks Curved	82	9.6%
Tiles Round and Curved	80	9.3%
Plates Round Curved and Dishes	74	8.6%

Most common parts in set 76974

Part	Color	Quantity
Brick Curved 2 x 1 No Studs [1/2 Bow] 11477	Dark Brown	32
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) 54200	Dark Brown	32
Tile Round 1 x 1 Quarter 25269	Dark Brown	30
Tile Round 1 x 1 Quarter 25269	Olive Green	28
Plate Special 1 x 2 Rounded with 2 Open Studs 35480	Tan	26
Brick Curved 2 x 1 No Studs [1/2 Bow] 11477	Olive Green	18
Brick Wedged, Curved 2 x 1 with Stud Notch Right 29119	Dark Brown	17
Brick Wedged, Curved 2 x 1 with Stud Notch Left 29120	Dark Brown	17
Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] 15672	White	16
Tile Round 1 x 1 Quarter 25269	White	16

156 of the 166 part shapes in this set have their own page on Setopedia, with their colors, element numbers and the other sets that use them. See all LEGO parts

Exclusive parts in set 76974

7 part shapes in set 76974 appear in no other set in the catalog, most often printed elements, stickers or molds specific to the model. If one gets lost, you will need to look for it individually, for example on BrickLink, rather than in another set. Counting colors, 13 lots in the set are not found in any other set.

Part	Color
Brick Curved 2 x 2 x 2/3 with Dark Brown/Dark Orange Shapes print 15068pr0102	Olive Green
Brick Curved 2 x 1 No Studs with Yellow Eye Left, Dark Brown Shape print 11477pr0045	Olive Green
Brick Curved 2 x 1 No Studs with Yellow Eye Right, Dark Brown Shape print 11477pr0046	Olive Green
Sticker Sheet for Set 76974-1 10114025
Hips and Tan Legs with Pocket, Dark Brown Belt, Light Nougat Knees print 970c26pr0008	Tan
Torso, Jacket with Dark Blue Stripes, Dark Brown Shirt, Red Handkerchief, Tan Bag print, Reddish Brown Arms and Hands 973c19h19pr0001	Dark Tan
Torso, Jacket, Dark Tan Tactical Gear, Pockets, Yellow Jurassic Park Logo print, Tan Arms, Light Nougat Hands 973c26h02pr0004	Tan

No similarly sized set supplies more than a quarter of its parts: set 76974 relies on a little-shared assortment.

Size of set 76974 within its line

With 858 pieces, set 76974 ranks #9 out of 95 Jurassic World sets in our database, which have an average of 368 parts. Among the 625 sets released in 2025, it ranks #118. That is 2.3 times the average Jurassic World set size.

Included minifigures

AtwaterQuantity : 1
LeClercQuantity : 1

Frequently asked questions

How many pieces does LEGO set 76974 Brick-Built Mosasaurus Boat Mission have?

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

What year was LEGO set 76974 released?

Set 76974 Brick-Built Mosasaurus Boat Mission was released in 2025 and belongs to the Jurassic World theme.

Which minifigures are included in set 76974?

Number of minifigures in LEGO set 76974 Brick-Built Mosasaurus Boat Mission: 2. Their names and quantities are listed in the “Included minifigures” section.

Where can I find the building instructions for set 76974?

The instructions for LEGO set 76974 Brick-Built Mosasaurus Boat Mission can be downloaded free as a PDF from the official lego.com website, under “Building Instructions”, by entering the number 76974.

What is the main color of LEGO set 76974?

Dark brown, with 170 out of 858 pieces, or 20%. Next come olive green (14%) and white (13%).

How many different parts does set 76974 contain?

Set 76974 has 238 different lots (one shape in one color), covering 166 part shapes. Most common part: Brick Curved 2 x 1 No Studs [1/2 Bow] in dark brown, with 32 copies.

Does LEGO set 76974 contain any exclusive parts?

Yes: 7 part shapes exist in no other set, for example: Brick Curved 2 x 2 x 2/3 with Dark Brown/Dark Orange Shapes print.

Is the Mosasaurus in set 76974 brick-built?

Yes. The set name Brick-Built Mosasaurus Boat Mission identifies the Mosasaurus as a brick-built model.