LEGO 9975
Simple Machines

LEGO 9975 Simple Machines box image
Set number
9975
Theme
Technic
Pieces
122 pcs
Year
1987
Used & parts
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“Simple Machines” is LEGO® “Technic” theme set number 9975. Released in 1987, it has 122 pieces. With Re:GO you can automatically work out what percentage of this set you can build from the LEGO parts you already own, along with the missing parts and an estimated cost. Use the links below to compare prices on Amazon, Rakuten, Yahoo! Shopping, Mercari and Yahoo! Auctions, and find the best deal on new, used, or individual parts.

Part breakdown 14 types

Color split (most first)
Light Gray×48
Red×32
Blue×28
Black×14
Main parts (most used first)
3709 Technic Plate 2 x 4 [3 Holes]
Red · ×16
3710 Plate 1 x 4
Red · ×16
3647 Technic Gear 8 Tooth
Light Gray · ×12
3648a Technic Gear 24 Tooth [Old Style - Three axle holes]
Light Gray · ×12
3700 Technic Brick 1 x 2 [1 Pin Hole]
Blue · ×12
3651 Technic Axle and Pin Connector
Light Gray · ×8
3673 Technic Pin without Friction Ridges Lengthwise
Light Gray · ×8
3702 Technic Brick 1 x 8 [7 Pin Holes]
Blue · ×8
3895 Technic Brick 1 x 12 [11 Pin Holes]
Blue · ×8
3706 Technic Axle 6
Black · ×6
3650a Technic Gear 24 Tooth Crown with Flat Teeth
Light Gray · ×4
3705 Technic Axle 4
Black · ×4
3708 Technic Axle 12
Black · ×4
3713 Technic Bush
Light Gray · ×4

More “Technic” theme sets

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