How many pieces are in the Universal Motor Set?

Universal Motor Set contains 24 pieces.

What age is the Universal Motor Set recommended for?

This set is recommended for ages 18+.

When was the Universal Motor Set released?

Universal Motor Set was released in 1973.

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🏛 Supplemental

Set #900

Universal Motor Set

The Universal Motor Set is a vintage LEGO gem.

🏆 Best For: Perfect for vintage LEGO collectors or those interested in basic motorization principles. ⏱ 1 hr build 🧩 24 pcs

★★★★☆ 4.0

Collectors appreciate this set for its historical value and the ability to motorize vintage LEGO creations. However, some find the reliance on other sets to be limiting and the 4.5V system outdated.

MSRP

$8.75

Best Price

$7.88

You Save

10% OFF

View on eBay

Check price on Amazon

📝 Our Take

The Universal Motor Set is a vintage LEGO gem. Released in 1973, this supplementary set provided the essential components to motorize other LEGO creations, adding a new dimension of play and functionality to existing sets.

This set is perfect for LEGO enthusiasts interested in vintage electrical components and simple mechanics. It offers a nostalgic glimpse into early LEGO engineering and is a valuable addition to any classic LEGO collection.

Skip this if you're looking for a complete, standalone building experience or modern Power Functions. This set requires integration with other LEGO sets to be fully appreciated, and the 4.5V system is outdated compared to current LEGO motorization options.

✨ New

Ask BlockTalk about this set

AI assistant with full set data

BlockTalk

Hi! I'm BlockTalk, your LEGO expert. Ask me anything about the Universal Motor Set - building tips, investment potential, comparisons, or anything else!

Try asking:

How does this motor compare to modern LEGO Power Functions? What types of LEGO sets were commonly motorized with this set in the 1970s? What is the best way to safely test and maintain the motor and electrical components? How rare is this set compared to other vintage LEGO sets from the same era?

🧱 Building Experience

🧩

Pieces

⏱

Build Time

📊

Beginner

Difficulty

Build Highlights:

Simple integration with other LEGO sets
Introduction to basic electrical components
Understanding gear ratios and mechanical movement
Experimenting with early LEGO motorization techniques

📈 Investment Analysis

↑ Trending up since release

B+

Investment Grade

⏳ Appreciating

The Universal Motor Set presents a unique investment opportunity due to its age, rarity, and historical significance. As a supplementary set from the 1970s, it is less common than many standalone sets of the era. The rising price trend indicates growing demand among collectors seeking to complete their vintage LEGO collections or acquire these early electrical components. While the small piece count might seem limiting, the set's functionality and rarity contribute to its investment potential. However, potential investors should be aware that the value is heavily dependent on the condition and completeness of the set, including the original packaging and instructions.

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

⚖ Compare Similar Sets

Motion Power Pack

Supplemental • 38 pcs

$22.50

🧱

4.5V Motor with Cables

Compared to modern LEGO motorization sets, the Universal Motor Set is a relic of the past. Modern Power Functions or Powered Up systems offer greater versatility and control. However, for collectors interested in the history of LEGO and early motorization techniques, this set is a valuable piece of LEGO history. It's not about raw power, it's about LEGO's evolution.

📦 Full Parts Inventory - 9 unique parts • 24 total pieces

Tyre Smooth Old S...

Part #: 132a 8× Black

Electric Connecto...

Part #: 236ac01 2× Blue

Wheel Spoked with...

Part #: 242c01 4× Red

Plate Special 6 x...

Part #: 3058b 1× Light Gray

Battery Box, 4.5V...

Part #: 468c02 1× Black

Technic Tread Cra...

Part #: 498 2× Black

Motor, Train, 4.5...

Part #: 564c01 1× Black

Wheel Old with 4 ...

Part #: 7039 4× Red

Wire 12V / 4.5V w...

Part #: 74503 1× White

This set is a valuable source for vintage electrical components and classic wheel elements. The 4.5V motor and battery box are essential for restoring or motorizing older LEGO creations, and the wheels are useful for vintage vehicle models.

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

Based on 7 videos

3.0 /5

Mixed

0% positive

BlockTalk AI

Based on the provided YouTube data, there's no clear sentiment regarding the Universal Motor Set (900-1). The videos listed focus on various LEGO-related topics such as vehicle builds, Speed Champions mods, and set comparisons, without directly reviewing the specific motor set.

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JANGBRiCKS • 48.8K views Review

Community Sentiment

Based on 7 YouTube reviews

Not enough Reddit data

YouTube

3.0 /5

Mixed

0% positive

Positive

Mixed

Critical

BlockTalk AI Analysis

What the Community Says

5 YouTube reviews

BlockTalk AI Summary

The analyzed reviews do not offer specific opinions on the Universal Motor Set (900-1) as they cover broader LEGO themes like custom car designs (Bricks n Cars) and general set comparisons (Coconut Bricks Studios). JANGBRiCKS reviews a DC Arkham Asylum set, while Boone Builds discusses drafting LEGO pieces, neither providing feedback on the motor set.

Reddit Reviews

No Reddit reviews found

YouTube Reviews

5 videos

LEGO Vehicles vs All Terrain...

Brick Science

7.1M views Comparison

100 INSANE LEGO Car IDEAS...

Bricks n Cars

1.2M views Review

LEGO DC Arkham Asylum modular reveal & thoughts! $300, 16 figs, 2,900+ pcs #NotSponsored

JANGBRiCKS

48.8K views Review

$1 LEGO Venator Vs $900 LEGO Venator!

Coconut Bricks Studios

21.8K views Comparison

View all 5 on YouTube

Community Content: These reviews are from Reddit and YouTube users sharing their personal experiences. Opinions may vary.

Inventory Statistics

Unique Parts

Total Pieces

Minifigures

Inventory Version: 1