LEGO Arin's Battle Mech (71804)
LEGO Arin's Battle Mech, set number 71804, is a Ninjago set of 104 pieces with 2 minifigures, released in January 2024. Its recommended retail price was $15.99. It retired in December 2025.
Specifications
- Set number
- 71804-1
- Theme
- Ninjago
- Subtheme
- Dragons Rising Season 2
- Pieces
- 104
- Minifigures
- 2
- Exclusive minifigures
- 0
- Released
- January 2024
- Retirement date
- December 2025
- MSRP (USD)
- $15.99
- MSRP (GBP)
- £12.99
- MSRP (EUR)
- €14.99
- MSRP (CAD)
- CA$19.99
- Amazon price
- $35.00
- Amazon 90-day average
- $35.00
- Amazon price vs MSRP
- +118.89%
- BrickLink new from
- $12.75
- BrickLink new from vs MSRP
- -20.26%
- BrickLink new 6-month average
- $16.72
- New sold on BrickLink in 6 months
- 2
- Used sold on BrickLink in 6 months
- 0
Price tracking
StudFinder tracks Arin's Battle Mech across Amazon and BrickLink and alerts you when the price falls past the discount you choose. Amazon most recently listed it at $35.00. The cheapest new BrickLink listing is $12.75. Full price history, retirement status and current deals are shown above.
How these prices are measured
The Amazon 90-day average of $35.00 is the mean of the lowest new Amazon listing for this set over the last 90 days, in US dollars. BrickLink figures are quoted for United States sellers in US dollars: "new from" is the lowest price a seller is currently asking, while the six-month averages are quantity-weighted means of the sales that actually completed on BrickLink over the last six months, drawn from 2 new sales of this set. Each "vs MSRP" figure compares that price with this set's $15.99 recommended retail price.
Price sources
StudFinder does not sell LEGO. Every price above was observed at one of these marketplaces — follow a link to see what it costs there now.
Common questions
How much does LEGO Arin's Battle Mech (71804) cost?
LEGO Arin's Battle Mech launched at a recommended retail price of $15.99. Amazon most recently listed it at $35.00, though it is out of stock there right now. The cheapest new listing on BrickLink is $12.75. That is 20.26% below its $15.99 MSRP.
Is LEGO 71804 retired?
LEGO Arin's Battle Mech retired in December 2025, so LEGO no longer produces it and it is only available second-hand or from leftover retailer stock.
How many pieces does LEGO Arin's Battle Mech have?
LEGO Arin's Battle Mech (71804) contains 104 pieces. It also includes 2 minifigures.
