Worcester Bosch O-Ring 87161074370

The Worcester Bosch 87161074370 is an O-ring, a circular sealing component typically made from rubber or a similar elastomer. It forms part of Worcester Bosch's range of gaskets, O-rings, seals and washers. In Worcester Bosch boilers, including Greenstar and British Gas branded models, this O-ring is used to create a watertight or airtight seal at a connection point, such as a pipe joint or component interface. By preventing leaks, it helps maintain system pressure and ensures the boiler operates efficiently. This small but critical part is often overlooked until a leak or pressure loss occurs. It is a Worcester Bosch spare part, designed to meet the manufacturer's specifications for fit and performance. The O-ring is a consumable item that may need replacement during servicing or repair.

• Visible cracks, cuts, flattening or deformation of the O-ring
• Water weeping or dripping from the joint or surrounding pipework
• Loss of system pressure, often indicated by a falling pressure gauge
• Hardening or brittleness of the rubber, reducing its sealing ability
• Discolouration, swelling or signs of chemical attack
• A persistent drip that cannot be stopped by tightening the joint

• Check your appliance model and GC number against the compatibility list to confirm fitment.
• Confirm the alternative part number 1015177 matches the part you are replacing.
• Inspect the existing O-ring for size and condition before ordering a replacement.
• If you are unsure of the exact model, check the GC number on the appliance data badge.
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.