10pcs 40mm x 1.5mm piston ring for use with TL43 TD40 NB411 EC04 G45L G4K SUM421 460 2041 ALPINA 400 B45 141 models.Designed as a replacement part that matches the specifications of the component.Features consistent performance and.Each piston ring is inspected prior to shipment.Suitable for various garden tool engines requiring this size and type of piston ring. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.