Sime 6319620 Compatible Actuator Motor – Murelle/format/friendly Sime 6319620 Compatible Actuator – Murelle/format/friendly Keep your heating running smoothly with this compatible replacement boiler part. Part number: 6319620. Designed for dependable performance, it’s ideal for boiler repairs, servicing and maintenance. Why buy this part: ✓ Reliable compatible alternative ✓ Helps restore efficient boiler operation ✓ Suitable for professional repair & maintenance ⚠️ We recommend that all parts are fitted by a fully qualified gas safe certified technician.