Unleash the legendary Fire Knight with the LEGO NINJAGO Fire Knight Mech (71846) for teens, ages 14 and up. Builders construct an imposing armored warrior that rises from the waves to confront a tentacled sea monster in a scene straight from NINJAGO Legends Monstrosity. Teens can pose the mech and sea monster, place Kai with his magical sword inside the mech's chest chamber, and have the included fisherman witness the battle from his tiny boat. Once completed, this building toy transforms into room decor for avid NINJAGO fans. A cool gift idea for teenager boys and girls who love model building sets and NINJAGO. For an immersive building experience, the LEGO Builder app includes intuitive 3D instructions and more. Contains 996 pieces.
Unleash the legendary Fire Knight with the LEGO NINJAGO Fire Knight Mech (71846) for teens, ages 14 and up. Builders construct an imposing armored warrior that rises from the waves to confront a tentacled sea monster in a scene straight from NINJAGO Legends Monstrosity. Teens can pose the mech and sea monster, place Kai with his magical sword inside the mech's chest chamber, and have the included fisherman witness the battle from his tiny boat. Once completed, this building toy transforms into room decor for avid NINJAGO fans. A cool gift idea for teenager boys and girls who love model building sets and NINJAGO. For an immersive building experience, the LEGO Builder app includes intuitive 3D instructions and more. Contains 996 pieces.
LEGO NINJAGO The Fire Knight Mech 71846
Unleash the legendary Fire Knight with the LEGO NINJAGO Fire Knight Mech (71846) for teens, ages 14 and up. Builders construct an imposing armored warrior that rises from the waves to confront a tentacled sea monster in a scene straight from NINJAGO Legends Monstrosity. Teens can pose the mech and sea monster, place Kai with his magical sword inside the mech's chest chamber, and have the included fisherman witness the battle from his tiny boat. Once completed, this building toy transforms into room decor for avid NINJAGO fans. A cool gift idea for teenager boys and girls who love model building sets and NINJAGO. For an immersive building experience, the LEGO Builder app includes intuitive 3D instructions and more. Contains 996 pieces.
Unleash the legendary Fire Knight with the LEGO NINJAGO Fire Knight Mech (71846) for teens, ages 14 and up. Builders construct an imposing armored warrior that rises from the waves to confront a tentacled sea monster in a scene straight from NINJAGO Legends Monstrosity. Teens can pose the mech and sea monster, place Kai with his magical sword inside the mech's chest chamber, and have the included fisherman witness the battle from his tiny boat. Once completed, this building toy transforms into room decor for avid NINJAGO fans. A cool gift idea for teenager boys and girls who love model building sets and NINJAGO. For an immersive building experience, the LEGO Builder app includes intuitive 3D instructions and more. Contains 996 pieces.
in 15 offers
The lowest price for LEGO NINJAGO The Fire Knight Mech 71846 right now is $155.00 at I'm Rick James Bricks, compared across 14 retailers.
The all-time low was $41.39 on 8 July 2026 — today's price is 274% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 6 Oct 2026.
Last updated at 06/10/2026 12:10:56
LEGO NINJAGO The Fire Knight Mech (996 pcs) Building Kit with 2 Minifigures Including Kai & Features a Sea Monster, Buildable Model for Display and
Free delivery
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LEGO The Fire Knight Mech 71846
Free delivery
71846 LEGO NINJAGO The Fire Knight Mech by Just Bricks
Delivery between Fri – Mon $9.95
LEGO Ninjago - The Fire Knight Mech - 71846
Delivery $103
LEGO Ninjago - The Fire Knight Mech 71846
Delivery between 9–20 Oct $9.95
LEGO 71846 The Fire Knight Mech - Ninjago
Delivery $12.99
LEGO 71846 The Fire Knight Mech - Ninjago
Delivery between 9–17 Oct $10
LEGO Ninjago The Fire Knight Mech 71846
Free 14-day returns
LEGO NINJAGO 71846 The Fire Knight Mech 996 Pieces 14+
Free delivery between 9–14 Oct
LEGO The Fire Knight Mech
Free delivery
| Educational Focus | Engineering |
| Product Type | Building Set |
| Safety Warnings | Choking hazard, Choking hazard - small parts, Not suitable for children under 3 years old |
| Material Safety | Non Toxic |
| Batteries Included | No |
LEGO NINJAGO The Fire Knight Mech (996 pcs) Building Kit with 2 Minifigures Including Kai & Features a Sea Monster, Buildable Model for Display and
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
LEGO The Fire Knight Mech 71846
Free delivery
71846 LEGO NINJAGO The Fire Knight Mech by Just Bricks
Delivery between Fri – Mon $9.95
LEGO Ninjago - The Fire Knight Mech - 71846
Delivery $103
LEGO Ninjago - The Fire Knight Mech 71846
Delivery between 9–20 Oct $9.95
| Educational Focus | Engineering |
| Product Type | Building Set |
| Safety Warnings | Choking hazard, Choking hazard - small parts, Not suitable for children under 3 years old |
| Material Safety | Non Toxic |
| Batteries Included | No |
