How many pieces are in the Locomotive Gray Bricks?

Locomotive Gray Bricks contains 106 pieces.

What age is the Locomotive Gray Bricks recommended for?

This set is recommended for ages 18+.

When was the Locomotive Gray Bricks released?

Locomotive Gray Bricks was released in 2001.

🏛 9V

Set #3747

Locomotive Gray Bricks

Name: Locomotive Gray Bricks
Brand: LEGO
SKU: 3747-1

Locomotive Gray Bricks is a charming little set from the 9V train era.

🏆 Best For: Ideal for children and train enthusiasts looking for a simple, enjoyable build. ⏱ 1.0 hr build 🧩 106 pcs

★★★☆☆ 3.8

A simple and classic LEGO train set that's appreciated for its nostalgic charm and affordability. Some find the design basic, but it's considered a good entry point for younger builders or those looking to expand their LEGO train collection.

MSRP

$6.99

Best Price

$6.29

You Save

10% OFF

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📝 Our Take

Locomotive Gray Bricks is a charming little set from the 9V train era. It's a great way to add some rolling stock to your LEGO train layout without breaking the bank, and the simple design is classic LEGO.

This set is perfect for LEGO train enthusiasts and those looking for a small, affordable building project. It's a quick build that can be easily customized and expanded upon.

Skip this if you're looking for a highly detailed or complex model. Consider larger LEGO train sets or MOC designs for more advanced building experiences.

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How does this set compare to other 9V train sets in terms of value and collectibility? What are some easy modifications to improve the detail or functionality of this locomotive? Is this a good set for introducing children to LEGO trains? What is the best way to display this set as part of a larger LEGO train layout?

🧱 Building Experience

🧩

106

Pieces

⏱

1.0h

Build Time

📊

Beginner

Difficulty

Build Highlights:

Simple and straightforward construction
Good introduction to LEGO train building
Easy to customize and expand
Classic LEGO design

📈 Investment Analysis

↑ Trending up since release

B-

Investment Grade

⏳ Appreciating

As a retired set from the early 2000s, Locomotive Gray Bricks has some investment potential, especially for LEGO train collectors. Its low piece count and original MSRP keep it relatively affordable on the secondary market, but the rising price trend suggests increasing demand. The set's condition and whether it includes the original box will significantly impact its value. While not a high-value investment, it's a solid choice for those interested in preserving LEGO train history.

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

⚖ Compare Similar Sets

This set is a small, affordable entry point into the world of LEGO trains. Compared to larger, more modern train sets, it lacks detail and complexity, but it offers a classic LEGO building experience. Consider sets like 60197-1 Passenger Train or 60198-1 Cargo Train for more advanced features and playability, or 40597-1 Majestic Chessboard for a completely different building experience at a similar price point.

📦 Full Parts Inventory - 30 unique parts • 106 total pieces

Panel 1 x 2 x 3 [...

Part #: 2362b 2× Black

Tile Special 1 x ...

Part #: 2412b 1× Black

Tile Special 1 x ...

Part #: 2432 2× Dark Gray

Brick 2 x 6

Part #: 2456 1× Dark Gray

Plate Special 1 x...

Part #: 2540 2× Black

Brick Special 1 x...

Part #: 2921 12× Dark Gray

Brick 1 x 2

Part #: 3004 4× Black

Brick 1 x 2

Part #: 3004 21× Dark Gray

Brick 1 x 6

Part #: 3009 1× Dark Gray

Plate 2 x 4

Part #: 3020 1× Dark Gray

Plate 1 x 2

Part #: 3023 2× Dark Gray

Slope 45° 2 x 4

Part #: 3037 6× Dark Gray

Slope 45° 2 x 1 w...

Part #: 3040b 6× Dark Gray

Brick Round 1 x 1...

Part #: 3062b 2× Dark Gray

Tile 2 x 2 with G...

Part #: 3068b 1× Black

Technic Brick 1 x...

Part #: 32064c 1× White

Slope 33° 3 x 4

Part #: 3297 4× Black

Plate 1 x 3

Part #: 3623 2× Dark Gray

Slope Inverted 45...

Part #: 3660 4× Dark Gray

Plate Special 1 x...

Part #: 3794a 1× Black

Brick Round 2 x 2...

Part #: 3941 1× Black

Dish 4 x 4 Invert...

Part #: 3960 1× Black

Plate Round 2 x 2...

Part #: 4032a 1× Black

Plate Special 1 x...

Part #: 4175 2× Black

Panel 1 x 4 x 3 [...

Part #: 4215b 2× Black

Equipment Weapon,...

Part #: 4349 1× Black

Plate Special 1 x...

Part #: 4510 2× Black

Plate Special 1 x...

Part #: 6019 2× Black

Brick 1 x 10

Part #: 6111 2× Dark Gray

Plate Round 1 x 1...

Part #: 6141 3× Trans-Red

Plate Round 1 x 1...

Part #: 6141 4× Trans-Neon Green

Plate Round 1 x 1...

Part #: 6141 8× Dark Gray

Technic Axle 3 wi...

Part #: 6587 1× Dark Gray

This set features a high concentration of Dark Gray bricks and slopes, useful for MOC builders creating industrial or vehicle-themed models. The inclusion of Trans-Neon Green and Trans-Red round plates adds a touch of color and could be useful for detailing.

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Inventory Statistics

Unique Parts

106

Total Pieces

Minifigures

Inventory Version: 1

Classic 9V Power!
Build your own Locomotive

Locomotive Gray Bricks