This piece specifically fits the model made by the following author. By purchasing this model, it means that you have taken responsibility for making this part fit.
Author of the base model: 
Z3D,OBJ
3D Model Specificatons
Low Quality Verticies - 15,618
Low Quality PolyCount (Traigles) - 8,006
Textures - No
Uv Mapped - No
*3D Model Disclaimer - This Is Not A Real Life Part And Is Meant For 3D Model Design Only