The Worcester Bosch 87101031610 Washer Pack is a set of genuine replacement sealing washers designed for use in various internal joints and connections within Ri, CDi and Greenstar boilers. These washers help create secure, leak-free seals at pipework, valve connections and other mechanical joints, preventing water or gas leakage, maintaining correct system pressures and protecting sensitive components from moisture ingress. Using the correct washers during routine servicing or repair helps preserve system integrity and reduces the risk of pressure faults or performance issues caused by poor sealing.

This pack of 10 washers is compatible with Worcester Bosch Ri, CDi and Greenstar series boilers that reference part number 87101031610 in their technical documentation. To ensure you use the correct washer for each connection, always verify the part number and intended application against your boiler’s service information before installation, as washer sizes and materials vary between joints and systems.

Supplied as a set of genuine Worcester Bosch replacement washers, this pack provides multiple seals ready for installation by a qualified engineer. Choosing these OEM washers helps restore proper sealing at critical connection points, supports stable pressures and contributes to dependable central heating and hot-water performance in compatible boilers.