Riello 40 O Ring for Pressure Adjuster Mectron 3007169

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The Riello 3007169 O-Ring is a genuine OEM replacement seal designed for use on the pressure adjuster assembly of Riello 40 Series and Mectron oil burners. This precision-engineered O-ring provides a secure and leak-proof seal, maintaining stable fuel pressure and preventing oil seepage around the adjuster housing. Manufactured from high-grade, oil-resistant elastomer, it ensures long-term reliability and consistent burner performance under demanding operating conditions.

Key Features

• Genuine Riello O-Ring – Part No. 3007169

• Designed for pressure adjuster on Riello 40 and Mectron burners

• Ensures airtight, leak-free sealing in high-pressure fuel systems

• Manufactured from durable, oil- and heat-resistant rubber compound

• Prevents pressure loss and oil leakage

• Maintains consistent burner performance and calibration

• Direct OEM replacement – fits original Riello adjuster housing

• Suitable for domestic and commercial oil-fired systems

Compatibility

• Fits Riello 40 Series and Riello Mectron oil burners

• Commonly used in boilers from Grant, Worcester, Firebird, Warmflow, and Trianco

• Designed for use with Riello fuel pumps and adjuster assemblies

When to Replace

• During burner servicing or rebuild

• If oil leakage or pressure instability is observed

• When the existing O-ring becomes worn, brittle, or flattened

Technical Specifications

• Manufacturer: Riello

• Part Number: 3007169

• Component: O-ring for pressure adjuster

• Material: Oil- and heat-resistant elastomer

• Function: Maintains sealing integrity in burner fuel adjustment systems

• Application: Riello 40 and Mectron oil burners