How many pieces are in the Supplementary Set?

Supplementary Set contains 56 pieces.

When was the Supplementary Set released?

Supplementary Set was released in 1999.

🏛 Duplo and Explore

Set #9123

Supplementary Set

Discover the Supplementary Set from the Duplo and Explore collection - 56 pieces of building excellence.

Before you buy

Build: 56 pieces · about 30-60 min Build time is an estimate.
Availability: Likely retired

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📦 Parts Inventory

Piece count: 56
Parts cataloged in this inventory: 22 unique parts, 56 pieces

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

Duplo Toolo Brick...

Part #: 31036c02 1× Blue

Duplo Toolo Arm 2...

Part #: 6279 6× Blue

Duplo Toolo Arm 2...

Part #: 6281c01 2× Blue

Duplo Toolo Brick...

Part #: 6284c01 2× Red

Duplo Toolo Brick...

Part #: 6285 2× Red

Duplo Toolo Brick...

Part #: 6288c01 1× Red

Duplo Toolo Wheel...

Part #: 6290 8× Black

Duplo Toolo Tyre ...

Part #: 6292 8× Black

Duplo Toolo Cabin...

Part #: 6293 1× Yellow

Duplo Toolo Arm w...

Part #: 6295 1× Yellow

Duplo Toolo Hydro...

Part #: 6363 2× Yellow

Duplo Hose with Y...

Part #: 6425c03 1× Black

Duplo Hose 11L wi...

Part #: 6426c01 1× Yellow

Duplo Brick 2 x 2...

Part #: 6474pr9993 1× Red

Duplo Toolo Arm T...

Part #: 6662c01 1× Red

Duplo Toolo Arm T...

Part #: 6663c01 1× Red

Duplo Toolo Arm 2...

Part #: 74844 4× Blue

Duplo Toolo Arm 2...

Part #: 74847 6× Blue

Duplo Toolo Brick...

Part #: 74867 1× Blue

Duplo Toolo Brick...

Part #: 74957 1× Yellow

🧱 Duplo Toolo Arm 2...

Part #: 6666c01 4× Blue

🧱 Duplo Toolo Winds...

Part #: 6672 1× Trans-Light Blue

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

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What YouTubers Say

1 video found

BlockTalk AI

JediJACPenguin appreciates the Supplementary Set (9123-1) for its exclusive minifigures and detailed stickers, noting it's a visually appealing scenic build. The reviewer also mentions the packaging, specifically noting the tape on the side of the box.