LEGO 42703
Mermaid Roller Coaster Ride

LEGO 42703 Mermaid Roller Coaster Ride box image
Set number
42703
Theme
Friends
Pieces
1,007 pcs
Year
2026
Used & parts
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“Mermaid Roller Coaster Ride” is LEGO® “Friends” theme set number 42703. Released in 2026, it has 1,007 pieces. With Re:GO you can automatically work out what percentage of this set you can build from the LEGO parts you already own, along with the missing parts and an estimated cost. Use the links below to compare prices on Amazon, Rakuten, Yahoo! Shopping, Mercari and Yahoo! Auctions, and find the best deal on new, used, or individual parts.

Part breakdown 236 types

Color split (most first)
Medium Lavender×144
Vibrant Yellow×144
Tan×131
Medium Azure×72
White×69
Pearl Gold×51
Bright Light Orange×44
Bright Light Yellow×32
Light Bluish Gray×30
Dark Pink×30
Trans-Light Blue×27
Nougat×22
Main parts (most used first)
24866 Plant, Flower, Plate Round 1 x 1 with 5 Petals
Bright Light Orange · ×38
3941 Brick Round 2 x 2 with Axle Hole
Tan · ×34
49595c Animal, Sea Life Set, Star Fish
Vibrant Yellow · ×24
49595d Animal, Sea Life Set, Clam Shell Small
Vibrant Yellow · ×24
49595e Animal, Sea Life Set, Fish with Bar
Vibrant Yellow · ×24
49595f Animal, Sea Life Set, Snail with Bar
Vibrant Yellow · ×24
49595g Animal, Sea Life Set, Seahorse with Bar
Vibrant Yellow · ×24
3040b Slope 45° 2 x 1 with Bottom Pin
Medium Lavender · ×21
3022 Plate 2 x 2
Pearl Gold · ×20
3010 Brick 1 x 4
Medium Lavender · ×18
85861 Plate Round 1 x 1 with Open Stud
Lime · ×15
3039 Slope 45° 2 x 2
Medium Lavender · ×14
98138 Tile Round 1 x 1
Nougat · ×14
3020 Plate 2 x 4
Medium Lavender · ×13
2540 Plate Special 1 x 2 Side Handle [Free Ends]
Pearl Gold · ×12
28192 Slope 45° 2 x 1 with 2/3 Inverted Cutout and no stud
Medium Lavender · ×12
3068b Tile 2 x 2 with Groove
Medium Lavender · ×12
3941 Brick Round 2 x 2 with Axle Hole
Trans-Light Blue · ×12
49595a Animal, Sea Life Set, Octopus
Vibrant Yellow · ×12
49595b Animal, Sea Life Set, Clam Shell Large
Vibrant Yellow · ×12
3062b Brick Round 1 x 1 Open Stud
Opal Trans-Dark Pink · ×10
18674 Plate Special Round 2 x 2 with Center Stud (Jumper Plate)
Lavender · ×9
3710 Plate 1 x 4
Medium Azure · ×9
61332 Technic Pin with Friction Ridges Lengthwise with No Center Slots
Black · ×9

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