We need special thing that made by piston. If you can support I will be send to you our de Detailed Product Description Raw Material:PA66+30GF Part Size: 60.0mm*45.0mm*15.0mm Process: Injection Molding + Tapping Application: Cummins ISCe OEM No/Model: 3800320 Type: Plastic Piston Certification: TS16949 Product Features: Raw Material:PA66+30GF Part Size: 60.0mm*45.0mm*15.0mm Process: Injection Molding + Tapping Package: Expendable Strength: High Precision, High Level of Quality & Reliablity