The LEGO The Fire Knight Mech (71846) is a mid-range build with plenty to enjoy, clocking in at 996 pieces. Released in 2025 as part of the Ninjago Legends collection, it retails for $119.99. The set includes 2 minifigures, adding play and display value.
Price-per-piece sits at $0.120. Not the cheapest, but you're paying for the design and theme licensing.
For the price point, the The Fire Knight Mech delivers a clean Ninjago build that's easy to recommend.
Key Features
996 pieces — A well-balanced build that hits the sweet spot
2 minifigures — Collectible characters from Ninjago
$0.120 per piece — Better value than the Ninjago average
Legends subtheme — A popular subcategory within Ninjago
From 2025 — Modern LEGO design and packaging quality
Investment Analysis
The LEGO The Fire Knight Mech (71846) is set to retire this year, which puts it squarely in the sweet spot for investors. Retail availability is winding down, and aftermarket demand typically picks up from here.
Investment-wise, we'd call this one decent.
Bottom line: Ninjago sets that retire with this profile usually see meaningful appreciation. If you spot the The Fire Knight Mech on sale, don't overthink it.
Theme Background
As a 2025 addition to Ninjago, part of the Legends subcollection, the The Fire Knight Mech slots into a meaningful entry point in the Ninjago range. Ninjago is consistently one of the top-performing LEGO themes, and at $119.99 this set is priced accordingly. Price-per-piece comes in at $0.120, which is reasonable for what Ninjago typically runs.
Collectors following Ninjago specifically should note the Legends subtheme — it's a category that tends to draw attention and hold value, especially as sets in this tier age out of production.
Why This Set Is Special
Part-out value 2.1x retail. The individual parts are worth $255.08 on BrickLink — 2.1x the $119.99 retail price. Exceptional part-out value.
Retirement Outlook
This set has a projected retirement date of December 2026. Check the retirement countdown above for the latest status.
Released in 2025 as part of the Ninjago theme, the The Fire Knight Mech has been a part of the LEGO lineup since its debut. Post-retirement, Ninjago sets in this price range have historically seen appreciation on the secondary market.
We recommend adding this set to your watchlist to receive alerts when retirement dates are confirmed or pricing changes occur.
Frequently Asked Questions
[{"q": "How many pieces are in the LEGO The Fire Knight Mech (71846)?", "a": "The LEGO The Fire Knight Mech (71846) contains 996 pieces, making it a mid-range set. Within the Ninjago theme, it ranks in the top 12% by piece count. This set offers a manageable build that can be completed in a sitting or two, making it a good choice for builders of all experience levels."}, {"q": "What minifigures come with the LEGO The Fire Knight Mech (71846)?", "a": "The LEGO The Fire Knight Mech (71846) includes 2 minifigures. Minifigures are a key value driver for LEGO sets \u2014 exclusive or rare minifigures can appreciate significantly in value on their own, sometimes commanding high prices on the secondary market."}, {"q": "How much does the LEGO The Fire Knight Mech (71846) cost?", "a": "The retail price (MSRP) for the LEGO The Fire Knight Mech (71846) is $119.99 in the United States. Regional pricing is \u00a3109.99 in the UK, CA$149.99 in Canada, \u20ac119.99 in Europe. This works out to $0.12 per piece. While you get fewer pieces per dollar than some other Ninjago sets, the build quality and specialized elements justify the premium."}, {"q": "Is the LEGO The Fire Knight Mech (71846) a good investment?", "a": "The LEGO The Fire Knight Mech (71846) shows moderate investment potential based on several factors. Ninjago sets have historically been among the best-performing themes for post-retirement appreciation. As with any LEGO investment, buying at or below retail price maximizes potential returns. Use the BrickBucks price tracker to find the best entry point."}, {"q": "What age is the LEGO The Fire Knight Mech (71846) suitable for?", "a": "The LEGO The Fire Knight Mech (71846) is recommended for ages 14+. This age range reflects a more advanced build with smaller pieces and complex techniques."}, {"q": "How big is the LEGO The Fire Knight Mech (71846)?", "a": "The LEGO The Fire Knight Mech (71846) measures approximately 35.4cm \u00d7 37.8cm \u00d7 9.4cm (W\u00d7H\u00d7D). It makes for a great display piece that won't take up too much shelf space."}, {"q": "When will the LEGO The Fire Knight Mech (71846) retire?", "a": "The LEGO The Fire Knight Mech (71846) is projected to retire around December 2026. Once a LEGO set retires, it is no longer produced or sold at retail. This typically causes prices to rise on the secondary market as supply decreases while collector demand remains. Check the retirement countdown on this page for the latest status."}, {"q": "Where can I buy the LEGO The Fire Knight Mech (71846)?", "a": "The LEGO The Fire Knight Mech (71846) is available from major retailers including Amazon, Walmart, Target, and LEGO.com. Use the BrickBucks deal tracker to find current discounts and the best price available right now."}]