Product Info: - Part: Fuel Filter - Fitting Type: Threaded - Fuel Type: Diesel - Inlet Type: Spin on - Mounting Type: Spin on - Inlet Outside Diameter (in): 1 inches - Inlet Outside Diameter (mm): 25.4 millimeters - Micron Rating: 6 - Outlet Outside Diameter (in): 3.663 inches - Outlet Outside Diameter (mm): 93.