How many pieces are in the Ultrarex (8504 + 8505 + 8506 + 8507)?

Ultrarex (8504 + 8505 + 8506 + 8507) contains 88 pieces.

What age is the Ultrarex (8504 + 8505 + 8506 + 8507) recommended for?

This set is recommended for ages 18+.

When was the Ultrarex (8504 + 8505 + 8506 + 8507) released?

Ultrarex (8504 + 8505 + 8506 + 8507) was released in 1999.

🏛 Throwbot Slizer

Set #C8504

Ultrarex (8504 + 8505 + 8506 + 8507)

Name: Ultrarex (8504 + 8505 + 8506 + 8507)
Brand: LEGO
SKU: C8504-1

Ultrarex is a nostalgic trip back to the late 90s Throwbot/Slizer era.

🏆 Best For: Ideal for older kids and AFOLs who enjoy combining sets and exploring creative builds. ⏱ 4.5 hr build 🧩 88 pcs

★★★☆☆ 3.8

Fans appreciate Ultrarex for its unique concept of combining multiple sets, offering a different kind of LEGO experience. However, some find the final model less polished than dedicated sets, and the need to acquire four separate sets can be a barrier.

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📝 Our Take

Ultrarex is a nostalgic trip back to the late 90s Throwbot/Slizer era. Combining four smaller sets to create a larger, more imposing robot, Ultrarex represents a unique concept in LEGO design, encouraging fans to collect multiple sets for a combined build.

This set is perfect for LEGO enthusiasts who appreciate unique building challenges. The combined nature of the build offers a distinctive experience, blending Technic elements with classic LEGO system pieces. It's a fun project for those interested in exploring alternative building techniques and celebrating LEGO's history.

Skip this if you prefer highly detailed, display-focused sets. Ultrarex prioritizes playability and creative combination over intricate aesthetics. If you're looking for a more refined display model, consider sets from themes like LEGO Icons or Architecture.

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Hi! I'm BlockTalk, your LEGO expert. Ask me anything about the Ultrarex (8504 + 8505 + 8506 + 8507) - building tips, investment potential, comparisons, or anything else!

Try asking:

How does Ultrarex compare to other combined LEGO models in terms of complexity and design? What are some creative ways to display Ultrarex to highlight its unique color scheme and Technic elements? What's the best way to ensure the longevity and preservation of Ultrarex for future collectors? How does the Ultrarex build experience compare to building the individual Throwbot/Slizer sets separately?

🧱 Building Experience

🧩

Pieces

⏱

4.5h

Build Time

📊

Intermediate

Difficulty

Build Highlights:

Combining four sets into one larger model.
Integrating Technic elements for stability and articulation.
Exploring creative MOC (My Own Creation) possibilities with the combined parts.
Unique color schemes and parts distribution.

📈 Investment Analysis

→ Price stable

C+

Investment Grade

⏳ Active

Ultrarex, as a combined model from the Throwbot/Slizer theme, holds a special place in LEGO history. Its investment potential hinges on nostalgia and the completeness of the set, including instructions and boxes for the constituent sets. The relative low piece count might limit significant appreciation, but the uniqueness of the combined model could attract collectors. Demand for vintage Technic sets is always present, making this a decent long-term investment, especially if well-preserved. However, market saturation of individual Throwbot/Slizer sets could cap the value.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

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Ultrarex stands out from other sets due to its combined nature, requiring the acquisition of four separate sets. While other LEGO themes offer larger, more detailed models, Ultrarex provides a unique building experience focused on combining existing sets into a new creation. Collectors interested in Technic and vintage LEGO may prefer Ultrarex for its historical significance and creative potential.

📦 Full Parts Inventory - 23 unique parts • 88 total pieces

Technic Pin with ...

Part #: 2780 6× Black

Technic Axle 2 No...

Part #: 32062 6× Black

Technic Axle 5

Part #: 32073 1× Black

Technic Bush 1/2 ...

Part #: 32123a 10× Light Gray

Technic Block 3 x...

Part #: 32165 2× Black

Technic Gearbox Half

Part #: 32166 2× Green

Technic Rectangul...

Part #: 32167 2× Black

Large Figure Skel...

Part #: 32168 2× Yellow

Large Figure Skel...

Part #: 32168 1× Black

Large Figure Viso...

Part #: 32169 1× Trans-Brown

Large Figure Viso...

Part #: 32169pr0007 1× Yellow

Technic Gear Rack...

Part #: 32170 1× Purple

Technic Pin Conne...

Part #: 32172 1× Purple

Technic Pin Conne...

Part #: 32172 2× Black

Technic Pin Conne...

Part #: 32172 2× Dark Turquoise

Technic Pin Conne...

Part #: 32172 1× Tan

Large Figure Skel...

Part #: 32173 4× Black

Large Figure Skel...

Part #: 32173 2× Yellow

Large Figure Skel...

Part #: 32173 4× Dark Gray

Technic Axle Conn...

Part #: 32174 4× Black

Technic Axle Conn...

Part #: 32174 5× Purple

Technic Axle Conn...

Part #: 32174 4× Tan

Technic Axle Conn...

Part #: 32174 5× Dark Turquoise

Technic Beam 1 x ...

Part #: 32177 2× Black

Technic Gear 8 Tooth

Part #: 3647 2× Purple

Technic Gear 8 Tooth

Part #: 3647 1× Tan

Technic Gear 8 Tooth

Part #: 3647 2× Black

Technic Gear 40 T...

Part #: 3649 1× Green

Technic Axle 4

Part #: 3705 2× Black

Technic Axle 6

Part #: 3706 2× Black

Technic Bush

Part #: 3713 1× Light Gray

Technic Axle 3

Part #: 4519 1× Black

Technic Worm Gear

Part #: 4716 1× Black

Technic Axle 3 wi...

Part #: 6587 4× Dark Gray

The set features a variety of Technic connectors and axles, useful for MOC builders looking to add articulation and structural integrity to their creations. The inclusion of Dark Turquoise and Purple Technic connectors adds a splash of rare color to any parts collection.