LEGO Kai's Dragon Mech Battle Pack (71851-1)
The Kai's Dragon Mech Battle Pack (71851-1) is a LEGO Ninjago set that was released in January 2026 and is due to retire on December 2027.
This LEGO set has 85 pieces and had a RRP of $9.99 (£8.99 / 9.99€) which equates to a price per piece of 0.12c (0.11p / 0.12€). It has gone down in value by -8.9% and now has a value of $9.11 based on average sale price over the last 6 months.
Price over time
View price history table
| Month | Avg Price | Sales |
|---|---|---|
| Jan 26 | $12.40 | 8 |
| Feb 26 | $12.40 | 2 |
| Mar 26 | $12.40 | 2 |
Minifigures
This set contains 3 minifigures with a combined value of $16.63. 1 of the minifigures in this set are exclusive, meaning they don't appear in any other LEGO sets.
Monthly sales
We have recorded 12 sales of the Kai's Dragon Mech Battle Pack set since Jan 26. The chart below shows the number of recorded sales per month, which can help indicate the popularity and availability of this set on the secondary market.
Value breakdown
The current value of Kai's Dragon Mech Battle Pack is $9.11
The 3 minifigures in this set make up 183% of the total set value.
The Earth Monster - Horns minifigure is the most valuable minifigure in this set who contributes 73% of the set value .
My collection
Set details
Name: Kai's Dragon Mech Battle Pack
Theme: Ninjago
Set number: 71851-1
Status: Active
Pieces: 85
Minifigures: 3
Jan 1, 2026
Jan 1, 2026
Jan 1, 2026
Jan 1, 2026
Dec 31, 2027 (est.)
Dec 31, 2027 (est.)
Dec 31, 2027 (est.)
Dec 31, 2027 (est.)
Shelf life: 3 months
$9.99
£8.99
9.99€
0.118c
0.106p
0.118€
Set value
Confidence: Medium
Current value: $9.11
Increase from RRP: -8.9%
ROI Prediction
We estimate that 2 years after retirement the value of this set will have increased by 40.76%.
However it could be as low as 34.01% or as high as 51.99%
Minifigures
Set colors
The Kai's Dragon Mech Battle Pack has 85 pieces and is ranked 8238 on the list of biggest LEGO sets ever made.
The most common colour in this set is Red
The most common part in this set is Plate, Round 1 x 2 with Open Studs
Stats
Frequently Asked Questions
How much is the LEGO Kai's Dragon Mech Battle Pack (71851-1) worth?
The LEGO Kai's Dragon Mech Battle Pack is currently worth $9.11 based on the average sale price over the last 6 months. The original retail price was $9.99.
How many pieces are in the LEGO Kai's Dragon Mech Battle Pack?
The LEGO Kai's Dragon Mech Battle Pack (71851-1) contains 85 pieces, making it the 8238th biggest LEGO set ever made.
Is the LEGO Kai's Dragon Mech Battle Pack still available?
Yes, the LEGO Kai's Dragon Mech Battle Pack is currently still active and available for purchase. The retail price is $9.99.
How many minifigures are in the LEGO Kai's Dragon Mech Battle Pack?
The LEGO Kai's Dragon Mech Battle Pack contains 3 minifigures, 1 of which is exclusive to this set. The minifigures include: Earth Monster - Horns, Sora - Cat Headphones, Mask, Scabbard Armor with 1 Shoulder Pad, Kai - Dragons Rising, Tunic with Dragon Head, Helmet.
When was the LEGO Kai's Dragon Mech Battle Pack released?
The LEGO Kai's Dragon Mech Battle Pack (71851-1) was released in January 2026 as part of the Ninjago theme.
Price data last updated: Mar 26
