The Worcester Bosch 87161409200 Washer is a genuine replacement sealing component designed to create a reliable, leak-free joint in your boiler’s internal pipework or assemblies. Measuring 30.5 mm outer diameter × 22.2 mm inner diameter × 1.5 mm thickness, this washer provides a tight mechanical seal between flanges or connections, helping prevent water or gas leaks, maintain correct system pressure and protect internal components from moisture ingress. Proper sealing with the correct washer helps reduce the risk of pressure loss, corrosion or nuisance fault codes linked to poor seals.

This washer is compatible with Worcester Bosch CDi, Camray and Greenstar series boilers that reference part number 87161409200 in their parts documentation. To ensure correct fitment and proper sealing performance, always verify that the part number and size match your existing washer or consult your boiler’s service information before installation, as sealing components vary between models and applications.

Supplied ready for installation, the 87161409200 Washer fits into the designated connection when installed by a qualified engineer. Choosing this genuine Worcester Bosch component helps restore effective sealing, supports stable pressures and contributes to dependable heating and hot-water performance in compatible boiler systems.