LEGO Parts 6632 (4pcs) Technic, Liftarm 1 x 3 Thin Choose Color | eBay
Brick-Shop - LEGO Technic 6007973 green liftarm brick 1x3 white (32523) Electric Battery Box Train Power Functions Motor (8881) Engine Motor Lego (7897)
LEGO part 33299 - Light Bluish Gray Technic, Liftarm 1 x 3 with 2 Axle Holes and Pin / Crank at BrickScout