Worcester Bosch Riello 3020436 Filter O Ring Oring, Fuel Filter Seal, Replacement Washer, Burner Service Spare Part, Oil Boiler Gasket

In stock
£13.92
Worcester Bosch Riello 3020436 Filter O Ring Oring, Fuel Filter Seal, Replacement Washer, Burner Service Spare Part, Oil Boiler Gasket

Worcester Bosch Riello 3020436 Filter O Ring Oring, Fuel Filter Seal, Replacement Washer, Burner Service Spare Part, Oil Boiler Gasket

SKU W-498286
Manufacturer part number
Z3020436
EAN
4051516687250
£13.92
inc VAT£11.60 ex VAT
Lead time: 1-5 working days
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Product: Worcester Bosch Riello 3020436 Filter O Ring Oring, Fuel Filter Seal, Replacement Washer, Burner Service Spare Part, Oil Boiler Gasket (Part no. W-498286)

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Description

Product Overview

The Worcester Bosch Riello 3020436 Filter O Ring is a replacement sealing ring designed for use on compatible Riello fuel filter assemblies. It helps maintain a tight, leak-free seal to support reliable burner operation and cleaner servicing. Ideal for routine maintenance where worn or flattened seals can cause seepage and performance issues.

Key Features

  • Leak-resistant seal – helps prevent fuel seepage around the filter housing for safer, cleaner operation.
  • Designed for servicing – ideal replacement O ring when carrying out routine oil burner and filter maintenance.
  • Correct-fit spare part – manufactured to match the specified Riello filter O ring application for dependable sealing.
  • Supports reliable burner performance – a good seal helps maintain consistent fuel delivery and reduces avoidable call-outs.

Use Case / Application

Suitable for heating and plumbing maintenance tasks involving Riello oil burner filter assemblies. Commonly used during oil boiler servicing, filter changes and inspection work where seals are renewed as standard.

Typical environments include domestic boiler/utility rooms, plant rooms, workshops and commercial heating setups where Riello burners are installed. Fit when replacing a perished seal on a filter bowl or filter housing to restore a secure, drip-free joint.

Problem → Solution

Perfect for fixing weeping or leaks around a fuel filter housing by replacing a worn O ring with the correct Riello 3020436 filter seal.

Product Specifications

• Manufacturer – Worcester Bosch
• Manufacturer Part Number (MPN) – Z3020436
• EAN / Barcode – 4051516687250
• Product Type – Filter O Ring (seal)

Why Buy from BHL

Worcester Bosch parts are trusted across UK heating systems for dependable quality and correct fit. The Riello 3020436 Filter O Ring is a small but essential spare that helps keep your fuel filter sealed and your burner running reliably. Buy online from BHL for competitive pricing, genuine parts and free and fast UK delivery* delivered with care from UK warehouses. BHL are a specialist online merchant, trusted by thousands of satisfied customers online since 1998 with thousands of 5 star reviews.
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Buying guide: Boiler Spares

Boiler spares are replacement parts for gas, LPG and oil boilers: printed circuit boards, fans, gas valves, pumps, diverter valves, heat exchangers, sensors, pressure gauges, burners, electrodes, seals, casing panels and flue parts. Most are made for one manufacturer, and often for a narrow range of models, so identifying the boiler correctly matters more than anything else.

Identify the boiler first

Find the data badge, usually behind the front panel or under the controls cover. It shows the manufacturer, the model and the GC (Gas Council) number, a seven-digit reference for the exact appliance. Natural gas and LPG versions of the same boiler usually have different GC numbers, and parts can change between production runs, so the GC number and serial number are the safest way to match a part. The boiler's installation and servicing manual lists the parts for each model.

Part numbers and replacements

Search by the manufacturer's part number where you have it. Manufacturers sometimes replace a part with a newer version under a new number; only use a replacement that the manufacturer lists for your model. Some repairs need a kit rather than a single part, for example a part supplied with new seals or fixings.

Safety

By law, work on gas boilers and their gas parts must be carried out by a Gas Safe registered engineer qualified for that type of appliance; ask to see their ID card before work starts. Oil boilers should be worked on by a suitably qualified technician.

For thermostats and programmers, see heating controls.

Shop all Boiler Spares

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