Back to Technic Brick 1 x 2 [1 Pin Hole]
4.5V Supplementary Set (870-1) is a Expert Builder LEGO set released in 1977 with 22 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 14 unique part types.
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Parts in this set
14 parts · updating…
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![Battery Box, 4.5V 6 x 11 x 3 1/3 Type 3 [Complete Assembly]](https://cdn.rebrickable.com/media/parts/ldraw/7/u9040c01.png)
Battery Box, 4.5V 6 x 11 x 3 1/3 Type 3 [Complete Assembly]468c03 · ×1 · Light Gray -
Motor, 4.5V Type 1 for 2-Prong Connectors without Middle Pin6216a · ×1 · Light Gray -
Rubber Band Medium (Square Cross Section) Thin Cut70012 · ×1 · Black -
Technic Axle 43705 · ×2 · Black -
![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 · ×4 · 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 · ×2 · Yellow -
Technic Bush3713 · ×1 · 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 · ×1 · Light Gray -
Technic Gear 24 Tooth Crown with Flat Teeth3650a · ×1 · Light Gray -
Technic Gear 8 Tooth3647 · ×2 · 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 Steering Pulley Large3736 · ×1 · Light Gray -
Wire with Light Gray 2-Prong Connectors, 4.5V, Type 1 Connectors, 96L141ac96 · ×1 · White