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

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

Price Comparison

Find the cheapest deal for Kai's Dragon Mech Battle Pack across 8 retailers in The United States.

Shop	Price
	$9.99
	$9.99
	$9.99
	$9.99
	$9.99
	$9.99
	$9.99
	$11.99

The links above are affiliate links, meaning Brickonomics may earn a commission on purchases made through them. This supports the development of the Brickonomics website.

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
Retirement date: 31-12-2027

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.

Parts

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

Price source:

Value of parts: $10.37
Pricing information known of 32/32 parts.

	Color	Quantity	Average price	Total	Value
Plate Special 2 x 3 with Rocks	Red	2	$0.99	$1.98	2 x $0.99 $1.98
Plate Special 1 x 2 Rounded with 2 Open Studs	Dark Red	8	$0.12	$0.95	8 x $0.12 $0.95
Flames 5 x 7 x 1 x 1/3 with Studs, Handle	Trans-Orange	1	$0.93	$0.93	1 x $0.93 $0.93
Creature Body Part, Dragon / Thestral Wing with Bar Connection and Marbled Bright Light Orange Pattern	Red	2	$0.46	$0.93	2 x $0.46 $0.93
Tile Round 2 x 2 with Gold Dragon Head on Dark Blue Background print	Pearl Gold	1	$0.60	$0.60	1 x $0.60 $0.60
Creature Body Part, Barb Large (Claw, Talon) with Clip	Pearl Gold	4	$0.13	$0.53	4 x $0.13 $0.53
Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard]	Pearl Gold	4	$0.12	$0.48	4 x $0.12 $0.48
Tile Round 1 x 1 Half Circle	Red	5	$0.08	$0.40	5 x $0.08 $0.40
Plate Special 1 x 2 with 5.9mm Towball Socket and Towball	Dark Bluish Gray	4	$0.09	$0.37	4 x $0.09 $0.37
Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder	Red	2	$0.13	$0.26	2 x $0.13 $0.26
Bracket 2 x 2 with 1 x 2 Vertical Studs	Black	2	$0.11	$0.21	2 x $0.11 $0.21
Weapon Hilt Symmetric	Dark Bluish Gray	1	$0.21	$0.21	1 x $0.21 $0.21
Plate Special 1 x 2 with 2 End Towballs	Black	1	$0.19	$0.19	1 x $0.19 $0.19
Brick Special 1 x 1 with Studs on 2 Sides	Dark Bluish Gray	1	$0.19	$0.19	1 x $0.19 $0.19
Brick Curved 2 x 2 x 2/3	Red	2	$0.09	$0.19	2 x $0.09 $0.19
Plate Special 1 x 2 5.9mm Centre Side Towball Socket	Light Bluish Gray	4	$0.04	$0.16	4 x $0.04 $0.16
Plate Special 1 x 2 with End Towball	Dark Bluish Gray	2	$0.08	$0.16	2 x $0.08 $0.16
Bracket 1 x 2 - 1 x 2 Inverted	Orange	2	$0.08	$0.16	2 x $0.08 $0.16
Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid]	Trans-Orange	4	$0.04	$0.16	4 x $0.04 $0.16
Minifig Neckwear Bandana (Ninjago)	Dark Blue	1	$0.16	$0.16	1 x $0.16 $0.16
Cockpit 4 x 2 x 3 with Pin Hole, and 2 Clips	Dark Bluish Gray	1	$0.16	$0.16	1 x $0.16 $0.16
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small	Black	5	$0.03	$0.13	5 x $0.03 $0.13
Tile 1 x 2 with Groove	Trans-Orange	2	$0.07	$0.13	2 x $0.07 $0.13
Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]	Red	2	$0.07	$0.13	2 x $0.07 $0.13
Plate Special, 2 x 2 Studs and Handle, Closed Ends (Mech Chest Plate / Armor)	Dark Red	1	$0.11	$0.11	1 x $0.11 $0.11
Technic Brick Special 1 x 2 with Pin Hole and 1 x 2 Plate	Red	1	$0.11	$0.11	1 x $0.11 $0.11
Plate Special 1 x 2 with Clip Horizontal on Side	Dark Red	1	$0.09	$0.09	1 x $0.09 $0.09
Plate Special 1 x 2 [Side Handle Closed Ends]	Red	2	$0.04	$0.08	2 x $0.04 $0.08
Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]	Orange	2	$0.04	$0.08	2 x $0.04 $0.08
Technic Pin with Friction Ridges Lengthwise with No Center Slots	Black	2	$0.03	$0.05	2 x $0.03 $0.05
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)	Orange	2	$0.03	$0.05	2 x $0.03 $0.05
Plate Special 1 x 2, Top Clip [Open O]	Black	2	$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	$5.66
	Kai (Draconus Form, No Wings or Tails) fig-017139, njo1040, BOID 1110569	1	$4.61
	Sora, Mask (Draconus Robes) fig-017126, njo1034, BOID 1016629	1	$4.72
Total minifigure value:			$14.99

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	$10.37
Minifigure value	$14.99
Total inventory value	$25.36

BrickLink

Ratio: what the parts sell for, over what the set sells for. Above 1× the parts are worth more than the set.

New · 6 months ?

Set ? · parts $26.96

Used · 6 months ?

Set ? · parts $9.11

Brick Owl

New · Current 3.21×

Set $12.03 · parts $38.60

New · 6 months 3.81×

Set $7.97 · parts $30.41

New · 1 year 4.62×

Set $8.55 · parts $39.51

Used · Current 3.76×

Set $7.58 · parts $28.48

Items sold, 6 months, new, both marketplaces 9

BrickLink
Condition	Timespan	Avg price	Items sold	Inventory value	Ratio
New	6 months	?	?	$26.96	?
Used	6 months	?	?	$9.11	?

Brick Owl
Condition	Timespan	Avg price	Inventory value	Ratio
New	Current	$12.03	$38.60	3.21
	6 months	$7.97	$30.41	3.81
	1 year	$8.55	$39.51	4.62
Used	Current	$7.58	$28.48	3.76

Combined 6 Month Sales Volume (New)
Total items sold	9

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

Find the cheapest offers for set 71851-1 from sellers on secondary marketplaces like Brick Owl and eBay. As an eBay Partner Network Affiliate and Brick Owl Affiliate, I earn from qualifying purchases.

Brick Owl and eBay marketplace offers.

BrickLink history of 0 sales with 0 total item quantity. Item condition: New.

Remove outliers

No sale history available.