Brick-Shop - LEGO Technic hinge plate 393801 white 1x2 connector (3937) Electric Battery Box Train Power Functions Motor (8881) Engine Motor Lego (7897)
5x LEGO Black Hinge Brick 1x2 Base w/Old Gray Top #3937 3938 | eBay
LEGO: 6x Brick To Hinge 1 x 2 - Ref 3937c02 Yellow - Set 31052 5987 4970 | eBay
LEGO Old Light Gray HINGE Parts Classic Brick 1 x 2 Top/Base Complete 3937 3938 | eBay