Replacement rotor and waterleaf assembly for gas boiler water circulation pumps, designed for direct replacement in pumps with motor power ratings from 63W to 83W. Use this part to restore reliable water flow, reduce noise from worn impellers, and extend the service life of your boiler circulation pump. Key benefits Restores proper water circulation: Replaces worn or damaged rotor/water leaves to recover pump flow and system performance. Prevents breakdowns and saves service time: A costeffective replacement that avoids complete pump or boiler unit replacement. Simple compatibility check: Intended for circulation pump motors rated 63W–83W so you can confirm fit by matching motor power rating. Main attributes Functionality: Rotor / water leaves for axial or mixedflow circulation within gas boiler pump housings, moving water through heat exchangers and system piping. Compatibility: Designed to be compatible with pumps whose motor power rating is between 63W and 83W. Confirm the motor rating on your existing pump before ordering. Fit and performance: Intended as a direct replacement component to match original pump geometry and restore designed flow and pressure characteristics. Reliability: Intended for use in normal domestic and light commercial gas boiler circulation applications to maintain consistent water movement and temperature control. Typical applications Routine boiler maintenance: a worn rotor during scheduled servicing to maintain system efficiency and prevent noise or vibration caused by eroded water leaves. after failure: Use as a part when the existing circulation pump impeller is cracked, broken, or heavily corroded and no longer circulates water effectively. Componentlevel refurbishment: Rebuild or refurbish a circulation pump by replacing the rotor/water leaves to extend pump life without replacing the entire pump assembly. Installation and compatibility notes Verify the motor power rating on your current pump is within the 63W–83W range before . Confirm that mounting interfaces and pump housing clearances match your existing pump; this part is intended to match original equipment specifications and facilitate a direct replacement when compatible. For safety, isolate power and drain the system where before performing any maintenance. If unsure about fit or installation, consult a qualified technician. This rotor/water leaves assembly is intended to provide a straightforward replacement option for gas boiler circulation pumps that use motors rated 63W–83W, helping restore reliable circulation and prolonging pump service life.