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Expert Builder/Gear Parts (961-1) is a Expert Builder LEGO set released in 1978 with 78 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Expert Builder sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 22 unique part types.
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Parts in this set
22 parts · updating…
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Technic Axle 103737 · ×1 · Black -
Technic Axle 123708 · ×1 · Black -
Technic Axle 23704 · ×2 · Black -
Technic Axle 43705 · ×2 · Black -
Technic Axle 63706 · ×2 · Black -
Technic Axle 83707 · ×2 · Black -
Technic Axle and Pin Connector3651 · ×6 · Light Gray -
![Technic Brick 1 x 16 [15 Pin Holes]](https://cdn.rebrickable.com/media/parts/elements/370324.jpg)
Technic Brick 1 x 16 [15 Pin Holes]3703 · ×4 · Yellow -
![Technic Brick 1 x 2 [1 Pin Hole]](https://cdn.rebrickable.com/media/parts/elements/370024.jpg)
Technic Brick 1 x 2 [1 Pin Hole]3700 · ×6 · Yellow -
![Technic Brick 1 x 4 [3 Pin Holes]](https://cdn.rebrickable.com/media/parts/elements/370124.jpg)
Technic Brick 1 x 4 [3 Pin Holes]3701 · ×4 · Yellow -
![Technic Brick 1 x 8 [7 Pin Holes]](https://cdn.rebrickable.com/media/parts/elements/370224.jpg)
Technic Brick 1 x 8 [7 Pin Holes]3702 · ×4 · Yellow -
Technic Bush3713 · ×10 · Light Gray -
Technic Engine Piston Square 2 x 2 - Old3652 · ×2 · Light Gray -
![Technic Gear 24 Tooth [Old Style - Three axle holes]](https://cdn.rebrickable.com/media/parts/ldraw/7/3648a.png)
Technic Gear 24 Tooth [Old Style - Three axle holes]3648a · ×4 · Light Gray -
Technic Gear 24 Tooth Crown with Flat Teeth3650a · ×1 · Light Gray -
Technic Gear 40 Tooth3649 · ×1 · Light Gray -
Technic Gear 8 Tooth3647 · ×4 · Light Gray -
Technic Gear Rack 1 x 43743 · ×2 · Light Gray -
Technic Pin without Friction Ridges Lengthwise3673 · ×15 · Light Gray -
![Technic Plate 2 x 4 [3 Holes]](https://cdn.rebrickable.com/media/parts/elements/370924.jpg)
Technic Plate 2 x 4 [3 Holes]3709 · ×2 · Yellow -
![Technic Plate 2 x 8 [7 Holes]](https://cdn.rebrickable.com/media/parts/elements/373824.jpg)
Technic Plate 2 x 8 [7 Holes]3738 · ×2 · Yellow -
![Technic Universal Joint 4L [Complete Assembly]](https://cdn.rebrickable.com/media/parts/ldraw/7/3712c01.png)
Technic Universal Joint 4L [Complete Assembly]9244 · ×1 · Light Gray