Elring 821.128 Exhaust Pipe Flange Gasket

Elring Exhaust Pipe Flange Gasket 821.128

Elring 821.128 is a fibre composite exhaust pipe flange gasket built for sealing the joint between exhaust pipe flanges. With a 42.3 mm inner diameter, 52 mm outer diameter, and 15 mm thickness, it provides a precise sealing surface for exhaust service work on applications such as Mercedes-Benz exhaust repairs and related flange connections.

Key Features

• Fibre composite gasket design for exhaust flange sealing
• Inner diameter: 42.3 mm
• Outer diameter: 52 mm
• Thickness: 15 mm
• Elring part number 821.128 for catalog lookup and ordering
• Cross-reference part numbers include 70-10474-10 and 621 492 00 81

Detailed Description

This Elring exhaust pipe flange gasket is made to seal a flanged exhaust connection where heat, vibration, and exhaust gas pressure can affect joint integrity. The fibre composite construction supports a stable seal at the flange interface, while the listed dimensions help confirm proper sizing before installation. For Mercedes-Benz exhaust service and other flange-based exhaust repairs, Elring 821.128 offers a direct replacement reference for the specified application.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Fix

• Exhaust leaks at a flange connection
• Noise from a leaking exhaust joint
• Soot marks around the exhaust pipe flange
• Loss of sealing after gasket wear or heat cycling
• Service issues during exhaust pipe removal and reassembly

Installation Notes

Confirm flange diameter and gasket thickness before installation. Clean both mating surfaces thoroughly so the new gasket seats evenly, and inspect the flange for warping, corrosion, or damage that could affect sealing. Use the correct torque sequence for the exhaust fasteners and verify the joint after the engine reaches operating temperature.

Quality Assurance

Elring is a recognized OE-focused sealing brand, and part number 821.128 is specified with exact dimensional data to support accurate exhaust service selection. Verify the part number and measurements against the vehicle application before installation.