An assembly kit includes a first turbocharger component flange with receptacles spaced according to a first interval angle; a second turbocharger component flange with receptacles spaced according to a second interval angle that differs from the first interval angle; and a piece configured for receipt by a receptacle of the first component and a receptacle of the second component where alignment of the receptacles determines a rotational orientation angle of the first component with respect to the second component. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.