Brickonomics | Kai's Dragon Mech Battle Pack (71851-1)

Kai's Dragon Mech Battle Pack (71851-1)

LEGO set 71851-1 Kai's Dragon Mech Battle Pack - Image 1

Price Comparison

No retailers currently stock Kai's Dragon Mech Battle Pack in The United States.

Set details

Name: Kai's Dragon Mech Battle Pack
Set number: 71851-1
Year: 2026
Theme: Ninjago
Number of parts: 85
Number of part types: 32
Age rating: 6+
Retail price: $9.99

Boys, girls and fans of the NINJAGO® Dragons Rising TV show ages 6 and up can enjoy hours of imaginative play with the LEGO® NINJAGO Kai’s Dragon Mech Battle Pack (71851) building set. This playset features a dragon mech toy with posable legs, large wings, claw hands and an upper body that rotates 360 degrees, plus a cockpit to place a minifigure inside.This great value ninja toy also comes with 3 minifigures: Kai with 2 sword accessories, Sora with 2 swords and an Earth Monster toy with clawhands, letting kids enjoy hours of adventures as they act out scenes from season 4 of NINJAGO Dragons Rising.The LEGO NINJAGO range of building sets and adventure toys for kids includes detailed mechs, dragons and temples so fans can role-play awesome ninja action. Kids can build each playset with confidence using the LEGO Builder app – zoom, rotate in 3D and track progress with easy-to-follow digital instructions. Set contains 85 pieces.

Price History

Track how the lowest available price for set 71851-1 in The United States has changed over time.

Browse all 85 parts in set 71851-1 with individual pricing from BrickLink or Brick Owl.

Price source:

Value of parts: $11.13
Pricing information known of 32/32 parts.

Part

Color

Quantity

Average price

Total

Value

Plate Special 2 x 3 with Rocks

Red

$1.18

$2.35

2 x $1.18

$2.35

Flames 5 x 7 x 1 x 1/3 with Studs, Handle

Trans-Orange

$1.12

$1.12

1 x $1.12

$1.12

Plate Special 1 x 2 Rounded with 2 Open Studs

Dark Red

$0.11

$0.87

8 x $0.11

$0.87

Creature Body Part, Dragon / Thestral Wing with Bar Connection and Marbled Bright Light Orange Pattern

Red

$0.38

$0.76

2 x $0.38

$0.76

Tile Round 2 x 2 with Gold Dragon Head on Dark Blue Background print

Pearl Gold

$0.76

$0.76

1 x $0.76

$0.76

Creature Body Part, Barb Large (Claw, Talon) with Clip

Pearl Gold

$0.15

$0.59

4 x $0.15

$0.59

Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard]

Pearl Gold

$0.12

$0.49

4 x $0.12

$0.49

Tile Round 1 x 1 Half Circle

Red

$0.09

$0.47

5 x $0.09

$0.47

Plate Special 1 x 2 with 5.9mm Towball Socket and Towball

Dark Bluish Gray

$0.08

$0.32

4 x $0.08

$0.32

Slope 45° 2 x 1 Triple with Inside Stud Holder

Red

$0.14

$0.27

2 x $0.14

$0.27

Weapon Hilt Symmetric

Dark Bluish Gray

$0.22

$0.22

1 x $0.22

$0.22

Bracket 2 x 2 with 1 x 2 Vertical Studs

Black

$0.11

$0.22

2 x $0.11

$0.22

Slope Curved 2 x 2 x 2/3

Red

$0.11

$0.22

2 x $0.11

$0.22

Plate Special 1 x 2 with 2 End Towballs

Black

$0.20

$0.20

1 x $0.20

$0.20

Brick Special 1 x 1 with Studs on 2 Sides

Dark Bluish Gray

$0.19

$0.19

1 x $0.19

$0.19

Cockpit 4 x 2 x 3 with Pin Hole, and 2 Clips

Dark Bluish Gray

$0.18

$0.18

1 x $0.18

$0.18

Minifig Neckwear Bandana (Ninjago)

Dark Blue

$0.16

$0.16

1 x $0.16

$0.16

Plate Special 1 x 2 5.9mm Centre Side Towball Socket

Light Bluish Gray

$0.04

$0.16

4 x $0.04

$0.16

Bracket 1 x 2 - 1 x 2 Inverted

Orange

$0.08

$0.16

2 x $0.08

$0.16

Slope 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid]

Trans-Orange

$0.04

$0.16

4 x $0.04

$0.16

Plate Special 1 x 2 with End Towball

Dark Bluish Gray

$0.08

$0.16

2 x $0.08

$0.16

Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small

Black

$0.03

$0.14

5 x $0.03

$0.14

Slope Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]

Red

$0.07

$0.14

2 x $0.07

$0.14

Plate Special, 2 x 2 Studs and Handle, Closed Ends (Mech Chest Plate / Armor)

Dark Red

$0.14

$0.14

1 x $0.14

$0.14

Tile 1 x 2 with Groove

Trans-Orange

$0.07

$0.14

2 x $0.07

$0.14

Technic Brick Special 1 x 2 with Pin Hole and 1 x 2 Plate

Red

$0.12

$0.12

1 x $0.12

$0.12

Plate Special 1 x 2 with Clip Horizontal on Side

Dark Red

$0.11

$0.11

1 x $0.11

$0.11

Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]

Orange

$0.04

$0.08

2 x $0.04

$0.08

Plate Special 1 x 2 [Side Handle Closed Ends]

Red

$0.04

$0.08

2 x $0.04

$0.08

Plate Special 1 x 2 [Open O Top Clip]

Black

$0.03

$0.05

2 x $0.03

$0.05

Technic Pin with Friction Ridges Lengthwise with No Center Slots

Black

$0.03

$0.05

2 x $0.03

$0.05

Slope 30° 1 x 1 x 2/3 (Cheese Slope)

Orange

$0.03

$0.05

2 x $0.03

$0.05

Minifigures included in set 71851-1.

Price source:

Minifigure		Quantity	Value
	Earth Monster fig-017132, njo1030, BOID 668533	1	$6.33
	Kai (Draconus Form, No Wings or Tails) fig-017139, njo1040, BOID 1110569	1	$4.52
	Sora (Draconus Robes) fig-017126, njo1034, BOID 1016629	1	$5.07
Total minifigure value:			$15.91

Compare the value of buying Kai's Dragon Mech Battle Pack as a complete set versus the total value of all parts individually.

Value Breakdown
Parts value	$11.13
Minifigure value	$15.91
Total inventory value	$NaN

BrickLink
Condition	Timespan	Avg price	Items sold	Inventory value	Ratio
New	6 months	?	?	$35.77	?
Used	6 months	?	?	$0.00	?

Brick Owl
Condition	Timespan	Avg price	Inventory value	Ratio
New	Current	$11.51	$43.48	3.78
	6 months	$9.15	$40.47	4.42
	1 year	$9.15	$35.63	3.89
Used	Current	?	$25.23	?

Combined 6 Month Sales Volume (New)
Total items sold	5

Boys, girls and fans of the NINJAGO® Dragons Rising TV show ages 6 and up can enjoy hours of imaginative play with the LEGO® NINJAGO Kai’s Dragon Mech Battle Pack (71851) building set. This playset features a dragon mech toy with posable legs, large wings, claw hands and an upper body that rotates 360 degrees, plus a cockpit to place a minifigure inside. This great value ninja toy also comes with 3 minifigures: Kai with 2 sword accessories, Sora with 2 swords and an Earth Monster toy with clawhands, letting kids enjoy hours of adventures as they act out scenes from season 4 of NINJAGO Dragons Rising. The LEGO NINJAGO range of building sets and adventure toys for kids includes detailed mechs, dragons and temples so fans can role-play awesome ninja action. Kids can build each playset with confidence using the LEGO Builder app – zoom, rotate in 3D and track progress with easy-to-follow digital instructions. Set contains 85 pieces.

MECH TOY FOR KIDS – Kai’s Dragon Mech Battle Pack (71851) building toy lets boys and girls ages 6 and up role-play action from season 4 of the NINJAGO® Dragons Rising TV show
POSABLE DRAGON MECH – The dragon mech has posable legs, large wings, claw hands and an upper body that rotates 360 degrees, plus a cockpit to place a minifigure inside
3 NINJAGO® MINIFIGURES – This ninja toy comes with Kai, Sora and a villainous Earth Monster for fans to play out action-packed good vs. evil battles
ACCESSORIES – Each NINJAGO® character minifigure has at least 1 weapon accessory for enhanced play value: Kai has 2 swords, Sora has 2 swords and the Earth Monster has claw hands
SMALL GIFT FOR KIDS – This great value small LEGO® set provides a fun build-and-play experience and is a ninja gift idea for kids with a passion for fantasy and adventure toys
MORE NINJA ADVENTURES – Discover other LEGO® NINJAGO® toys (sets sold separately) featuring detailed mechs, dragons, temples and vehicles
A UNIVERSE OF LEGO® NINJAGO® SETS – This extensive collection of kids’ toys lets ninja fans and children escape into an immersive fantasy world for imaginative play with their ninja heroes
DIMENSIONS – This 85-piece ninja toy playset features a NINJAGO®dragon mech standing over 3.5 in. (9 cm) high

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Item		Price

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