O-ring

Bosch O-ring (Part No. 87002051150) is a factory spare sealing component intended for use in Bosch heating, cooling and water‑heating equipment. It provides a reliable, leak‑resistant seal at service and mechanical connections, simplifying routine maintenance and minimizing the risk of fluid or refrigerant loss. Supplied as an OEM replacement, the O‑ring supports efficient field servicing and helps maintain system integrity during repairs. (bosch-homecomfort.com)