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LEGO 4.5 Volt Train Motor 12 x 4 x 3 1/3 with Three Holes on Each Side | Brick Owl - LEGO Marketplace
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BrickLink - Set 104-1 : LEGO Replacement 4.5V Motor [Train:Supplemental:4.5V] - BrickLink Reference Catalog
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Amazon.com: LEGO Technic Power Functions Motor Set 8293 (10 Pieces) (Discontinued by Manufacturer) : Toys & Games
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BrickLink - Part x469b : LEGO Electric, Motor 4.5V Type C 12 x 4 x 3 1/3 (Train) [Electric, Motor] - BrickLink Reference Catalog
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