LEGO Arin's Battle Mech (71804-1)
The Arin's Battle Mech (71804-1) is a LEGO Ninjago set that was released in December 2023 and retired in December 2025 with a shelf life of 2 years 25 days.
This LEGO set has 104 pieces and had a RRP of $15.99 (£12.99 / 14.99€) which equates to a price per piece of 0.15c (0.12p / 0.14€). Since it retired it has gone down in value by -9.0% and now has a value of $14.55 based on average sale price over the last 6 months.
Price over time
View price history table
| Month | Avg Price | Sales |
|---|---|---|
| Jan 24 | $17.51 | 1 |
| Feb 24 | $19.26 | 0 |
| Mar 24 | $21.01 | 0 |
| Apr 24 | $21.01 | 1 |
| May 24 | $22.76 | 0 |
| Jun 24 | $24.51 | 1 |
| Jul 24 | $17.51 | 1 |
| Aug 24 | $17.51 | 0 |
| Sep 24 | $17.51 | 0 |
| Oct 24 | $15.76 | 1 |
| Nov 24 | $15.76 | 0 |
| Dec 24 | $15.76 | 1 |
| Jan 25 | $21.01 | 1 |
| Feb 25 | $21.01 | 0 |
| Mar 25 | $21.01 | 0 |
| Apr 25 | $19.26 | 2 |
| May 25 | $17.51 | 0 |
| Jun 25 | $15.76 | 0 |
| Jul 25 | $14.01 | 0 |
| Aug 25 | $14.01 | 1 |
| Sep 25 | $15.76 | 1 |
| Oct 25 | $17.51 | 0 |
| Nov 25 | $17.51 | 4 |
| Dec 25 | $17.51 | 0 |
| Jan 26 | $17.51 | 1 |
| Feb 26 | $21.01 | 2 |
Minifigures
This set contains 2 minifigures with a combined value of $7.58. None of the minifigures in this set are exclusive, meaning they all appear in other LEGO sets.
Monthly sales
We have recorded 18 sales of the Arin's Battle Mech set since Jan 24. 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 Arin's Battle Mech is $14.55
The 2 minifigures in this set make up 52% of the total set value.
The Arin - Head Wrap minifigure is the most valuable minifigure in this set who contributes 31% of the set value .
My collection
Set details
Name: Arin's Battle Mech
Theme: Ninjago
Set number: 71804-1
Status: Retired
Retired for: 5 months
Pieces: 104
Minifigures: 2
Dec 6, 2023
Dec 6, 2023
Dec 6, 2023
Dec 6, 2023
Dec 31, 2025
Dec 31, 2025
Dec 31, 2025
Dec 31, 2025
Shelf life: 2 years, 1 month
$15.99
£12.99
14.99€
0.154c
0.125p
0.144€
Set value
Confidence: Medium
Current value: $14.55
Increase from RRP: -9.0%
Yearly ROI: -9.0%
Minifigures
Set colors
The Arin's Battle Mech has 104 pieces and is ranked 7434 on the list of biggest LEGO sets ever made.
The most common colour in this set is Black
The most common part in this set is Slope, Curved 4 x 1 x 2/3 Double
Stats
Frequently Asked Questions
How much is the LEGO Arin's Battle Mech (71804-1) worth?
The LEGO Arin's Battle Mech is currently worth $14.55 based on the average sale price over the last 6 months. The original retail price was $15.99.
How many pieces are in the LEGO Arin's Battle Mech?
The LEGO Arin's Battle Mech (71804-1) contains 104 pieces, making it the 7434th biggest LEGO set ever made.
Is the LEGO Arin's Battle Mech retired?
Yes, the LEGO Arin's Battle Mech has been retired. It was retired in December 2025 and is no longer available from LEGO directly. You can find it on the secondary market through sites like BrickLink and eBay.
How many minifigures are in the LEGO Arin's Battle Mech?
The LEGO Arin's Battle Mech contains 2 minifigures. The minifigures include: Arin - Head Wrap, Wolf Mask Warrior / Wolf Mask Claw Warrior - Shoulder Armor.
When was the LEGO Arin's Battle Mech released?
The LEGO Arin's Battle Mech (71804-1) was released in December 2023 as part of the Ninjago theme.
Is the LEGO Arin's Battle Mech a good investment?
Since retirement, the LEGO Arin's Battle Mech has decreased in value by 9.0% from its original retail price.
Price data last updated: Feb 26
