How many pieces does the LEGO The Fire Knight Mech (71846-1) have?

The LEGO The Fire Knight Mech set (71846-1) contains 997 pieces. It was released in 2025 as part of the LEGO Ninjago theme.

How can I find missing parts for LEGO set 71846-1?

On BrickMissing you can check which parts from the LEGO The Fire Knight Mech (71846-1) you already own. Add your LEGO collection and we'll show exactly which of the 997 pieces you're missing and which you already have.

Can I build the LEGO The Fire Knight Mech with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 997 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO The Fire Knight Mech from?

The LEGO The Fire Knight Mech (71846-1) belongs to the LEGO Ninjago theme. You can browse all Ninjago sets on BrickMissing to find more sets from this theme.

The Fire Knight Mech

71846-1 Ninjago 2025 997 parts 4.9% catalog rarity Advanced

Can you reuse another set to build The Fire Knight Mech?

A complete Source Dragon of Motion can supply 195 of the 997 inventory pieces; 802 are still needed.

Compare exact pieces and missing quantities ↓

Witness the clash with the LEGO NINJAGO The Fire Knight Mech (71846-1), a 997-piece display model from 2025. This detailed set depicts a dramatic confrontation: the cape-wearing Fire Knight Mech, armed with a spear, battles an ancient sea monster with movable tentacles emerging from the depths. The mech offers posable features, allowing for dynamic action poses to recreate scenes from the NINJAGO Legends Monstrosity series. It rests on a display base that can be removed for interactive play. Inside the mech's chest, the Kai minifigure, wielding his magical sword, stands ready, while a fisherman with a paddle steers his small boat nearby.

View at LEGO.com € 119,99→ lego.com

Reuse the pieces you already have

Which pieces can another set supply for The Fire Knight Mech?

Choose one complete source set to see its usable pieces and the remaining shortfall. Each comparison stands alone: these totals cannot be added together.

Source 71822-1 · 2024

Source Dragon of Motion

195 usable pieces

19.6% of the target inventory · 802 still needed

View 71822-1 set details Find 71822 at LEGO ↗

Source 71870-1 · 2026

The Twin Titan Mechs

194 usable pieces

19.5% of the target inventory · 803 still needed

View 71870-1 set details Find 71870 at LEGO ↗

Source 71797-1 · 2023

Destiny’s Bounty - Race Against Time

157 usable pieces

15.7% of the target inventory · 840 still needed

View 71797-1 set details Find 71797 at LEGO ↗

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From Source Dragon of Motion to The Fire Knight Mech

195 of 997 target pieces can be supplied; 802 pieces remain missing.

Assumes one complete source set. Match by exact part number and colour; usable quantity is the smaller of needed and available. Spare parts and colour substitutions are excluded. This does not mean the target can be built completely, and does not check your own collection.

Which parts are still missing?

After reusing parts from one complete Source Dragon of Motion (71822-1), you still need 802 pieces across 269 part-and-colour combinations.

These examples highlight large remaining shortfalls. A zero in “In source” means this source set contains none of that part in the listed colour. The full comparison below includes every shortfall.

Parts still missing from 71846-1 after using 71822-1
Part / colour	Needed	In source	Missing
3023 · Dark Bluish GrayPlate 1 x 2	32	3	29
3022 · Dark OrangePlate 2 x 2	24	0	24
3023 · Pearl GoldPlate 1 x 2	16	0	16
63868 · RedPlate Special 1 x 2 with Clip Horizontal on End	16	0	16
22391 · Dark RedWedge Sloped 4 x 4 Pointed	14	0	14

Exact part numbers and colours, excluding spares and substitutions. Inventory snapshot: 2026-09-21. Counts assume this complete source set, not your own collection.

Use the LEGO links below to search Pick a Brick for individual parts. Check the design, colour, quantity and availability there before ordering; these searches do not preselect the listed colour.

Preview: 6 of 308 target part-and-colour combinations, starting with the most reusable pieces. Load the full comparison to see every shortfall.

Exact parts from 71822-1 usable in 71846-1
Part / colour	Needed	In source	Usable	Missing
99207 · RedBracket 1 x 2 - 2 x 2 InvertedFind at LEGO ↗	14	22	14	0
32062 · RedTechnic Axle 2 NotchedFind at LEGO ↗	13	41	13	0
61332 · BlackTechnic Pin with Friction Ridges Lengthwise with No Center SlotsFind at LEGO ↗	11	37	11	0
28192 · Dark RedSlope 45° 2 x 1 with 2/3 Inverted Cutout and no studFind at LEGO ↗	18	8	8	10
15068 · RedSlope Curved 2 x 2 x 2/3Find at LEGO ↗	10	8	8	2
15672 · RedSlope 45? 2 x 1 with 2/3 Cutout [New Version]Find at LEGO ↗	8	10	8	0

How these source sets were selected

NINJAGO catalog sets from 2011 onward, with standard five-digit set numbers ending in -1 and between one quarter and twice this set's catalog piece count (at least 50 pieces). Ranked by the number of exact shared pieces; ties favour higher source inventory coverage. This is a limited catalog comparison, not a claim about price, availability or the best set to buy.

Totals use inventory quantities, which can differ from the advertised box count. Snapshot: 2026-09-21. Original catalog colours are preserved. The source inventory contains 1,714 non-spare pieces; 11.4% are usable for this target. Inventory corrections after this date are not included.

Parts Inventory

🧱 997 parts

Showing the first 12 rows of the parts list (997 pieces in total). The full list loads automatically.

Color	Qty	LEGO price each
White	1×	Check price → View
Red	4×	€0,12 View at LEGO → View
Black	6×	€0,12 View at LEGO → View
Dark Tan	1×	Check price → View
Black	1×	€0,10 View at LEGO → View
Dark Bluish Gray	2×	€0,13 View at LEGO → View
Black	2×	€0,13 View at LEGO → View
Dark Pink	1×	€0,41 View at LEGO → View
Dark Bluish Gray	1×	€0,29 View at LEGO → View
Dark Orange	1×	€0,15 View at LEGO → View
Dark Red	1×	€0,06 View at LEGO → View
Black	6×	€0,06 View at LEGO → View

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Catalog rarity

How common are the parts in The Fire Knight Mech?

4.9%Moderate rarity

more commonless common

15 of 308 recorded part+color combinations appear in 3 or fewer sets in our catalog. This does not measure replacement availability or price.

Theme average

6.4%

All sets

6.7%

Least common in our catalog

Sticker Sheet for Set 71846-1 · White · only this set in our catalogCape, Large for Mech, Tethered · Dark Tan · only this set in our catalogWedge Sloped 45° 6 x 8 · Dark Red · only this set in our catalogBuy at LEGO ↗

How we calculate this →