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Top 6
August 2025
Best Ninjago Lego Sets Kai Fire Mech
We made a list of the top 6 Ninjago Lego Sets Kai Fire Mech based on verified reviews, popularity and other factors which we summarized for you in this list.
Best Choice
1
LEGO NINJAGO The Fire Knight Mech Building Set - Model Kit with Kai Minifigure from Legends Monstrosity - Teen Room Decor - Gift for Teenage Boys and Girls, Ages 14+ - 71846
LEGO
9.8
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LEGENDARY NINJAGO BATTLE – Teens, 14 years old and up, build The Fire Knight Mech (71846) locked in combat with an ancient sea monster
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MODEL BUILDING KIT – Both the mech and sea monster can be posed for endless pretend battles or displayed as fan-built art
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LEGO NINJAGO MINIFIGURE – Caped warrior Kai wields his magical sword inside the mech while a fisherman watches the action from his boat
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BUILD, PLAY, & DISPLAY – Teens create an impressive piece of room decor that can be removed from its base for mech adventures
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GIFT FOR TEEN BOYS & GIRLS – Makes a perfect birthday present or cool special-occasion gift for teenage NINJAGO fans who love LEGO building toys
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LEVEL-UP BUILDING SKILLS – The LEGO Builder app provides an intuitive guide where builders can zoom in, rotate models in 3D, and track their progress
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DIMENSIONS – This 996-piece model stands over 10 in. (26 cm) tall on its display stand with spear
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2
LEGO NINJAGO Kai’s Elemental Fire Mech Action Figure, Mini Ninja Toy for Kids with Customizable Red Ninja Figure Plus Kai and Zane Minifigures, Adventure Set for Boys and Girls Ages 7 and Up, 71808
LEGO
9.6
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Kids’ customizable action figure toy – Kai’s Elemental Fire Mech mini ninja toy for boys and girls ages 7 and up combines with 2 other mechs (sold separately) thanks to its detachable legs, arms and torso
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Build your own mech suit – Kids can enjoy hours of creative fun as they mix and match parts from this ninja adventure set with other NINJAGO mechs (sets sold separately) to create their own mech figure
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4 NINJAGO minifigures – Set comes with Kai, Zane and Jordana, each with a sword element, and a Wolf Mask Warrior so kids can re-enact battles from season 2 of the NINJAGO Dragons Rising TV show
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Posable red ninja figure – Kai’s mech has posable arms and legs that can be tilted and twisted into battle stances, and a big golden sword for role-play battles against a Wolf figure
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Ninja gift – This battle toy provides a fun build and play experience and is an everyday gift idea for kids who love to play out action packed stories
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More customizable mechs – Kids can swap and combine parts from Kai’s mech with Cole’s Elemental Earth Mech (71806) and Sora’s Elemental Tech Mech (71807), which are sold separately
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A universe of ninja toys – LEGO NINJAGO sets include dragons, vehicles and temples, and let kids escape into a fantasy world of adventures with their ninja heroes
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3
LEGO NINJAGO Fire Stone Mech 71720 Building Kit Featuring Ninja Mech (968 Pieces)
LEGO
9.5
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Super-cool LEGO NINJAGO Fire Stone Mech (71720) and 5 minifigures for kids to recreate action from the NINJAGO TV series; This makes the perfect role-play toy for kids who want to pretend to be their ninja heroes
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This ninja playset includes a NINJAGO Fire Stone mech and 5 minifigures: Hero Kai, Hero Nya, Hero Cole, Moe and Murt; Youngsters can have fun playing out their own NINJAGO brick adventures from the Dungeons of Shintaro
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This awesome toy provides kids with endless play possibilities; The Fire Stone ninja mech boasts highly posable legs and arms, fits up to 2 minifigures in its cockpit, and can fire studs from its shooters
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This 968-piece LEGO NINJAGO mech set provides a fun building experience for boys and girls aged 9+, and is the perfect way for little ninjas to explore their creativity
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This NINJAGO building set for kids is perfect for play at home or for fun on the go; The fire ninja mech measure overs 10” (27cm) high, 7” (19cm) long and 11” (29cm) wide
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14% Discount
4
LEGO NINJAGO Kai’s Ninja Climber Mech Adventure Toy Set, Buildable Figure with 4 Ninja Action Figures for Independent Play, Ninja Gift for Kids, Boys and Girls Ages 9 Years Old and Up, 71812
LEGO
9.4
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Mech adventure set for kids – Boys and girls aged 9+ can play out battles in the Shadow Forest from season 2 of the NINJAGO Dragons Rising TV show with Kai’s Ninja Climber Mech
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Posable mech figure – The ninja mech toy’s arms, legs, torso, head and feet are posable, and it comes with 2 big katana sword accessories and an opening cockpit with space for a minifigure
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2 ninja hooks for play and display – On the back of the mech are 2 large ninja hooks that kids can use to stage exciting climbing stories and then display it after playtime
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4 NINJAGO minifigures – This ninja toy includes 4 ninja action figures: Climber Kai and Climber Jay, each with a katana sword accessory, Wyldfyre with 2 flammable fists, and Jordana with a glider vehicle
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Ninja gift – This LEGO battle toy provides a fun build-and-play experience and is a birthday gift idea for kids ages 9 and up who love ninja action
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A helping hand – Discover intuitive instructions in the LEGO Builder app where builders can zoom in and rotate models in 3D, track their progress and save sets as they develop new skills
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Bigger ninja adventures – Look out for more NINJAGO toys (sets sold separately) featuring dojos, shrines and vehicles
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5
LEGO NINJAGO Kai's Mech Jet 71707 Ninja Car Building Kit (217 Pieces)
LEGO
9.3
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Kids will love recreating scenes from Prime Empire with this awesome LEGO NINJAGO Kai’s Mech Jet set!
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This building set includes a NINJAGO mech that rebuilds into a toy plane, NINJAGO Kai and Richie minifigures and a Key-Tana that bring the game to life!
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New for January 2020, this LEGO NINJAGO jet plane rebuilds into a powerful mech toy with posable arms and legs and stud shooters!
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This LEGO NINJAGO ninja action set sparks imagination, offers endless build-and-play fun, and is a ninja warrior-filled holiday, birthday or anyday gift for kids ages 7+ who love LEGO NINJAGO toys, ninjas and mechs
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Kai's mech jet measures over 6” (16 cm) high and 9” (25 cm) wide
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6
LEGO NINJAGO Movie Fire Mech 70615 Building Kit (944 Pieces)
LEGO
9.2
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Build your own Fire Mech, complete with opening minifigure cockpit, posable arms and legs, two non-shooting fire blasters with translucent fire-style elements, two shoulder disc shooters and more
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Featured in THE LEGO NINJAGO MOVIE
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Includes 6 minifigures: Kai, Zane, Lauren, Henry, Hammer Head and Jelly
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LEGO NINJAGO brick building toys are compatible with all other LEGO construction sets for creative building
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Fire Mech measures over 14-inch high, 4-inch long and 8-inch wide
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944 pieces – For boys and girls between the ages of 9 and 14 years old
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