Vaillant O Ring Each 98-1173 981173

2 remaining - discontinued

The Vaillant O-Ring 98-1173 (Part No. 981173) is a genuine OEM sealing ring designed for use across various Vaillant boilers and heating components. This precision-engineered rubber O-ring provides a secure, watertight seal for hydraulic joints, unions, and fittings exposed to pressure and temperature fluctuations. It ensures leak-free performance, helping to maintain system efficiency and reliability.

Manufactured from high-grade, heat- and chemical-resistant elastomer, the 981173 O-ring delivers long-lasting durability and flexibility, making it ideal for boiler maintenance, servicing, and component replacement.

Key Features

• Genuine Vaillant O-Ring – Part No. 98-1173 / 981173

• Provides a watertight and airtight seal for hydraulic components

• Made from high-quality, heat- and oil-resistant rubber

• Ensures reliable performance under system pressure

• Prevents leakage and maintains system integrity

• OEM-quality fitment – exact replacement for the original seal

• Suitable for domestic and commercial Vaillant boilers

• Supplied individually (each) for service or repair use

Compatibility

• Fits multiple Vaillant ecoTEC, TURBOmax, and ecoMAX boilers

• Commonly used in pump housings, pipe connections, and hydraulic blocks

• Suitable for both heating and hot water circuits

When to Replace

• If leaks are visible at a connection or joint

• When the existing O-ring shows signs of flattening, cracking, or wear

• During routine boiler service or component replacement

Technical Specifications

• Manufacturer: Vaillant

• Part Number: 98-1173 / 981173

• Quantity: Sold individually (each)

• Material: Heat- and oil-resistant elastomer

• Function: Sealing for hydraulic and water-carrying components

• Application: Vaillant boilers and heating systems