Unleash the Dragon Mech!
Epic Ninja Battles Await

Join Kai and Sora in the Whispering Woods to conquer the Earth Monster! This 85-piece set brings season 4 of Ninjago Dragons Rising to life.

Breaking News
🏛 Ninjago
Set #71851

Kai's Dragon Mech Battle Pack

Kai's Dragon Mech Battle Pack is a fantastic entry point into the Ninjago universe.

🏆 Best For: Perfect for kids aged 6+ and new LEGO builders ⏱ 1.0 hr build 🧩 85 pcs 🎂 Ages 6+
★★★★☆ 4.2

Fans appreciate the set's affordability and the inclusion of three minifigures. Some find the mech design a bit simplistic, but overall it's considered a good value for a small Ninjago set.

MSRP
$9.99
Best Price
$8.99
You Save
10% OFF
View on

📝 Our Take

Kai's Dragon Mech Battle Pack is a fantastic entry point into the Ninjago universe. This set offers a quick and engaging build, perfect for younger fans or those looking for a small, action-packed addition to their collection. The vibrant colors and posable mech design make it a visually appealing set.

This set is perfect for kids aged 6+ and Ninjago enthusiasts. The build is straightforward and satisfying, providing a fun introduction to LEGO mechs. The inclusion of three minifigures enhances the play experience, allowing for immediate action and imaginative scenarios.

Skip this if you're an advanced builder looking for a complex project. This set is designed for younger builders and those seeking a quick, fun build. Consider larger Ninjago sets with more intricate designs and higher piece counts for a more challenging experience.

✨ New
BlockTalk

Ask BlockTalk about this set

AI assistant with full set data

Powered by AI
BlockTalk
BlockTalk
Hi! I'm BlockTalk, your LEGO expert. Ask me anything about the Kai's Dragon Mech Battle Pack - building tips, investment potential, comparisons, or anything else!
Try asking:
How does this set compare to other Ninjago battle packs? What are some fun play scenarios for the included minifigures? Is this set a good value for the price? How posable is the dragon mech?

🧱 Building Experience

🧩
85
Pieces
1.0h
Build Time
📊
Beginner
Difficulty
👤
6+
Ages
Build Highlights:
  • Simple and straightforward mech construction
  • Posable joints for dynamic play
  • Bright color scheme and dragon-themed elements
  • Easy-to-follow instructions

📈 Investment Analysis

→ Price stable
C+
Investment Grade
⏳ Active
Kai's Dragon Mech Battle Pack presents a modest investment opportunity. Its low price point and accessibility make it appealing to a wide audience, potentially driving demand upon retirement. However, its small size and lack of exclusive elements may limit significant appreciation. The Ninjago theme's consistent popularity provides some stability, but the set's long-term value will depend on overall market trends and collector interest in mech-based sets.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

Compare Similar Sets

Compared to larger Ninjago mech sets, this Battle Pack offers a more accessible and affordable entry point. While it lacks the complexity and detail of sets like the LEGO Ninjago Lloyd's Titan Mech (70676-1), it provides a similar play experience at a lower price. It's a great alternative for younger fans or those new to the Ninjago theme.

3 Minifigures Included

The set includes three minifigures: Sora (Draconus Robes), Earth Monster, and Kai (Draconus Form). Kai is a key character, making this set desirable for minifigure collectors.

📦 Full Parts Inventory - 46 unique parts • 82 total pieces

Plate Special 1 x 2 with Clip Horizontal on Side Plate Special 1 x...
Part #: 11476 Dark Red
Plate Special 1 x 2 with 5.9mm Towball Socket and Towball Plate Special 1 x...
Part #: 14419 Dark Bluish Gray
Plate Special 1 x 2 5.9mm Centre Side Towball Socket Plate Special 1 x...
Part #: 14704 Light Bluish Gray
Tile Round 2 x 2 with Gold Dragon Head on Dark Blue Background print Tile Round 2 x 2 ...
Part #: 14769pr0027 Pearl Gold
Slope Curved 2 x 2 x 2/3 Slope Curved 2 x ...
Part #: 15068 Red
Slope 45° 2 x 1 Triple with Inside Stud Holder Slope 45° 2 x 1 T...
Part #: 15571 Red
Minifig Neckwear Bandana (Ninjago) Minifig Neckwear ...
Part #: 15619 Dark Blue
Creature Body Part, Barb Large (Claw, Talon) with Clip Creature Body Par...
Part #: 16770 Pearl Gold
Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard] Weapon Sword / Ka...
Part #: 21459 Pearl Gold
Slope 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] Slope 45° 1 x 1 x...
Part #: 22388 Trans-Orange
Plate Special 1 x 2 with End Towball Plate Special 1 x...
Part #: 22890 Dark Bluish Gray
Tile Round 1 x 1 Half Circle Tile Round 1 x 1 ...
Part #: 24246 Red
Plate Special, 2 x 2 Studs and Handle, Closed Ends (Mech Chest Plate / Armor) Plate Special, 2 ...
Part #: 27167 Dark Red
Plate Special 2 x 3 with Rocks Plate Special 2 x...
Part #: 27261 Red
Tile 1 x 2 with Groove Tile 1 x 2 with G...
Part #: 3069b Trans-Orange
Plate Special 1 x 2 with 2 End Towballs Plate Special 1 x...
Part #: 3170 Black
Plate Special 1 x 2 Rounded with 2 Open Studs Plate Special 1 x...
Part #: 35480 Dark Red
Slope Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Slope Inverted 45...
Part #: 3660 Red
Creature Body Part, Dragon / Thestral Wing with Bar Connection and Marbled Bright Light Orange Pattern Creature Body Par...
Part #: 38547pat0002 Red
Bracket 2 x 2 with 1 x 2 Vertical Studs Bracket 2 x 2 wit...
Part #: 41682 Black
Plate Special 1 x 2 [Open O Top Clip] Plate Special 1 x...
Part #: 44861 Black
Brick Special 1 x 1 with Studs on 2 Sides Brick Special 1 x...
Part #: 47905 Dark Bluish Gray
Plate Special 1 x 2 [Side Handle Closed Ends] Plate Special 1 x...
Part #: 48336 Red
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small Animal Body Part,...
Part #: 53451 Black
Slope 30° 1 x 1 x 2/3 (Cheese Slope) Slope 30° 1 x 1 x...
Part #: 54200 Orange
Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Plate Special 1 x...
Part #: 60897 Orange
Technic Pin with Friction Ridges Lengthwise with No Center Slots Technic Pin with ...
Part #: 61332 Black
Weapon Hilt Symmetric Weapon Hilt Symme...
Part #: 66909 Dark Bluish Gray
Technic Brick Special 1 x 2 with Pin Hole and 1 x 2 Plate Technic Brick Spe...
Part #: 73109 Red
Flames 5 x 7 x 1 x 1/3 with Studs, Handle Flames 5 x 7 x 1 ...
Part #: 7727 Trans-Orange
Cockpit 4 x 2 x 3 with Pin Hole, and 2 Clips Cockpit 4 x 2 x 3...
Part #: 98876 Dark Bluish Gray
Bracket 1 x 2 - 1 x 2 Inverted Bracket 1 x 2 - 1...
Part #: 99780 Orange
🧱 Wrap with Dark Re...
Part #: 115499pat0003 Red
🧱 Minifig Head Eart...
Part #: 28621pr0009 Dark Tan
🧱 Minifig Head Kai,...
Part #: 28621pr3977 Yellow
🧱 Minifig Head Sora...
Part #: 28621pr3985 Yellow
🧱 Hair, High Ponyta...
Part #: 5326pat0001 Coral
🧱 Minifig Neckwear ...
Part #: 5501 Pearl Gold
🧱 Headwear, Pearl T...
Part #: 7551pat0001 Dark Tan
🧱 Minifig Neckwear ...
Part #: 86124 Trans-Orange
🧱 Hips and Dark Tan...
Part #: 970c11pr0009 Dark Tan
🧱 Hips and Red Legs...
Part #: 970c22pr0007 Red
🧱 Hips and White Le...
Part #: 970c27pr0032 White
🧱 Torso, Ninja Robe...
Part #: 973c10h03pr0010 Red
🧱 Torso, Dark Bluis...
Part #: 973c11h12pr0003 Dark Tan
🧱 Torso, Ninja Robe...
Part #: 973c27h05pr0003 White
The set features a good selection of red and dark red parts, useful for building fire-themed creations. The pearl gold creature barbs add a touch of detail and value.

🛒 Where to Buy

eBay
✓ In Stock
$8.99
LEGO (UK)
✓ In Stock
£8.99
Walmart
✓ In Stock
$9.49
Target
✓ In Stock
$9.99
LEGO (DE)
✓ In Stock
€9.99
LEGO (US)
✓ In Stock
$9.99
LEGO (CA)
✓ In Stock
$12.99
Amazon

💎 Notable Parts

Dark Red Plate Special 1 x 2 Rounded with 2 Open Studs (8x) $1.20
Pearl Gold Creature Body Part, Barb Large (Claw, Talon) with Clip (4x) $1.00
Red Creature Body Part, Dragon / Thestral Wing with Bar Connection and Marbled Bright Light Orange Pattern (2x) $1.50
Est. BrickLink Part Value
$3.70

💡 MOC Potential

🤖 Alternate mech designs and upgrades
🌳 Dragon shrine or training grounds
🚗 Dragon-themed speeder or vehicle

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

Based on 7 videos
3.6 /5
Positive
29% positive
BlockTalk AI

Kai's Dragon Mech Battle Pack (71851) is generally viewed positively, with praise for its value, as highlighted by JANG's LEGO Reviews. While overall sentiment leans positive, many reviews adopt a neutral stance, focusing on objective assessments of the set's features.

Community Sentiment

Based on 7 YouTube reviews

Reddit

Not enough Reddit data

YouTube

3.6 /5
Positive
29% positive
2
Positive
5
Mixed
0
Critical
Common Feedback
+ Value
BlockTalk AI Analysis

Kai's Dragon Mech Battle Pack (71851) is generally viewed positively, with praise for its value, as highlighted by JANG's LEGO Reviews. While overall sentiment leans positive, many reviews adopt a neutral stance, focusing on objective assessments of the set's features.

What the Community Says

6 YouTube reviews
BlockTalk AI Summary

Bricks By Mind provides an early review of the set, while JANG's LEGO Reviews offers an independent, #NotSponsored take aimed at adult collectors and parents. The set is part of the Ninjago Dragons Rising Season 4 line, with reviewers like AL123 Productions finding the new Ninjago sets to be amazing.

Community Content: These reviews are from Reddit and YouTube users sharing their personal experiences. Opinions may vary.

📖 Building Instructions 2

Kai's Dragon Mech Battle Pack Instructions
BI 3100, 48, 71851 V29
Download PDF
Kai's Dragon Mech Battle Pack Instructions
BI 3100, 48, 71851 V39
Download PDF

Charts Inventory Statistics

46
Unique Parts
82
Total Pieces
3
Minifigures
Inventory Version: 1