Vaillant O-Ring Set of 10 Red - 509120

Vaillant Packing O'Ring - Red, 10 Per Pack (509120) is a genuine replacement component designed for use within Vaillant central heating systems. O-rings, gaskets and washers play a key role in joining parts to the pipework and supporting reliable operation of the boiler. This pack comprises 10 red O-rings that are suitable for use with various Vaillant units, including Aquaplus models from 2002 to 2005, and Thermocompact 615 E, 620 E (2001–2002), and 624 E (2001–2002). As a genuine Vaillant product, it comes with the manufacturer’s guarantee, reflecting its compatibility and quality.

These O-rings help maintain correct operation and long-term durability within compatible heating and hot water systems. Vaillant Spares offers a range of genuine replacement parts designed to restore performance and protect system integrity.

• Pack of 10 O-rings for Vaillant boilers
• Used to join parts to the pipework
• Suitable for Aquaplus (2002–2005)
• Also compatible with Thermocompact 615 E, 620 E, 624 E (2001–2002)
• Red packing ring; gasket type for multiple applications
• Genuine Vaillant boiler spares with manufacturer guarantee