LEGO Set

Universal Building Set with Flex System

8074-1

Released: 1991 · Parts: 317 · Theme: Universal Building Set

Universal Building Set with Flex System (8074-1) is a Universal Building Set LEGO set released in 1991 with 317 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Universal Building Set sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 73 unique part types.

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Buying checklist

Quick context before you buy this set used or verify a marketplace listing.

Release year

1991 (35 years ago — may be retired)
Catalog scale

317 parts listed · 73 inventory lines tracked
Minifigures

No minifigs in inventory (brick-only or Technic set)
Build manual

No digital manual in our catalog — check the box tab or LEGO.com
Gray era

Pre-2004 set — may use old light/dark gray instead of bluish gray
Shipping weight (est.)

~612 g for parts inventory (excludes box/minifig packaging)
Before you buy used

Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing

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Market value

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