How many pieces does the LEGO XT4 (6229-1) have?

The LEGO XT4 set (6229-1) contains 39 pieces. It was released in 2012 as part of the LEGO Hero Factory theme.

How can I find missing parts for LEGO set 6229-1?

On BrickMissing you can check which parts from the LEGO XT4 (6229-1) you already own. Add your LEGO collection and we'll show exactly which of the 39 pieces you're missing and which you already have.

Can I build the LEGO XT4 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 39 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO XT4 from?

The LEGO XT4 (6229-1) belongs to the LEGO Hero Factory theme. You can browse all Hero Factory sets on BrickMissing to find more sets from this theme.

XT4

6229-1 Hero Factory 2012 39 parts 20% repair risk Beginner

Teach the heroes the meaning of tough with the XT4 (6229-1) set! XT4 has made a daring escape from the Hero Factory, fleeing to his home planet, Mechna. This heavy-metal robot is no easy target, boasting a menacing cyborg eye and four powerful arms. Each arm is equipped with razor disc slicers, alongside two striking blades and a laser slicer, making it a formidable opponent. The highly flexible and poseable elements allow for dynamic action poses. Defend XT4 against the heroes and prepare for an epic showdown! Challenge hero 6221 NEX in battle, or combine XT4 with 6221 NEX for an even larger, more powerful model. XT4 stands over 6 inches (17cm) tall and includes a unique code worth 200 game points for the LEGO Hero Factory BREAKOUT game online. Confront XT4 and unleash its full villainous might!

Parts Inventory

🧱 39 parts

Part	Color	Qty	LEGO price each
Tool Chainsaw / Drill Body 2516	Yellow	1×	Check price → View
Antenna 8H Whip 2569	Trans-Neon Orange	1×	Check price → View
Technic Axle Pin without Friction Ridges Lengthwise 3749	Tan	1×	€0,06 View at LEGO → View
Flexible Ribbed Hose 8mm Ends 19L 57539	Black	2×	Check price → View
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye 58176	Trans-Red	1×	€0,07 View at LEGO → View
Technic Circular Saw Blade 9 x 9 with Pin Hole 61403	Flat Silver	1×	Check price → View
Large Figure Foot, Short with Ball Joint Socket 87841	Yellow	2×	Check price → View
Large Figure Skeletal, Limb, 5L with Ball Joint on Axle and Ball Socket 90609	Black	4×	Check price → View
Large Figure Skeletal, Limb with Ball Joint and Ball Socket, Short 90612	Black	1×	Check price → View
Large Figure Skeletal, Limb with Ball Joint, and Ball Socket and Two Holes 90615	Light Bluish Gray	2×	Check price → View
Large Figure Skeletal, Limb with 2 Ball Joints, and Ball Socket 90617	Light Bluish Gray	8×	Check price → View
Large Figure Skeletal, Connector, Perpendicular, 3L with 2 Pins, 3 Ball Joints on Axle 90634	Black	1×	Check price → View

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Repairability

Can you fix XT4 if a piece goes missing?

20%High repair risk

easy to fixguard this box

4 of the 20 part+color combinations in this set appear in 3 or fewer sets ever made. Lose one of those and a replacement is very hard to find.

Theme average

22.2%

All sets

6.7%

Hardest to replace

Large Figure Foot, Short · Yellow · only this setLarge Figure Mask, One Eye Opening (XT4) · Yellow · only this setLarge Figure Skeletal, Limb · Light Bluish Gray · 2 sets ever

How we calculate this →