Elring 821.770 Exhaust Gas Recirculation (EGR) Valve Gasket

Overview

Elring 821.770 is an EGR valve gasket for emission control sealing applications. It is specified for use after the EGR cooler, where a precise seal is needed to maintain exhaust gas recirculation system integrity.

Compatible With Chevrolet Express 2500, Chevrolet Express 3500, Chevrolet Express 4500, Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Savana 2500, GMC Savana 3500, GMC Savana 4500, GMC Sierra 2500 HD, and GMC Sierra 3500 HD applications. This part cross-references 98065521 for the same application.

Key Features

• EGR valve gasket for emission control sealing
• Specified fitting position: after EGR cooler
• Elring 821.770 part number for catalog matching
• Direct-fit sealing component for supported applications

Detailed Description

Elring 821.770 is built for exhaust gas recirculation service where the gasket must seal the joint after the EGR cooler. In Chevrolet Express, Chevrolet Silverado HD, GMC Savana, and GMC Sierra applications, this gasket supports the sealing interface between EGR components and helps maintain proper exhaust routing through the recirculation system.

Use this gasket when servicing the EGR valve connection on supported Chevrolet and GMC trucks and vans. The part number 821.770 should be matched carefully to the vehicle listing and the after-cooler location noted in the fitment data.

What It Is Used For

• Replacing a leaking EGR valve gasket
• Restoring a sealed connection after the EGR cooler
• Addressing exhaust gas seepage at the EGR joint
• Supporting proper exhaust gas recirculation flow

Installation Notes

Verify the vehicle application, model year, and EGR component location before installation. This gasket is listed for after EGR cooler placement on many applications, while some fitments do not include that note, so confirm the exact service location against the vehicle being repaired. Clean the mating surfaces thoroughly before assembly and inspect the EGR hardware and adjoining components for wear or damage.

Quality Assurance

Elring is a recognized sealing-system brand, and 821.770 is cataloged as an emission control gasket for supported Chevrolet and GMC applications. Match the part number 821.770 to the fitment record to ensure correct application selection.