We are offering for sale

WEBER 38/40/42/45 DCOE AIR FILTER BASE GASKET (DELLORTO DHLA, SOLEX ADDHE)

This air filter base gasket seals the interface between the carburetor air-entry flange and the matching air filter base. It is used with Weber 38/40/42/45 DCOE, Dellorto DHLA, and Solex ADDHE carburetor applications. The pictured gasket has two large circular air passages with the corresponding mounting-hole pattern.

MPN ST1913 provides a replacement sealing interface during air-filter-base service. A sound gasket helps prevent air and dirt from bypassing the filter base connection. This part is not a jet or internal metering component, so it does not directly calibrate the main circuit, progression, enrichment, emulsion, or fuel-level control; its function is to maintain proper sealing on the carburetor air-entry side.

The price is for one gasket for one carburetor. Replace the gasket when removing the air filter base, especially if the existing seal is compressed, torn, contaminated, or no longer matches the flange surfaces. Confirm that the opening arrangement and mounting pattern match the carburetor and filter base before installation.

This replacement part is suitable for carburetor service and restoration work where the original component is worn, damaged, or missing.

Reference/MPN: ST1913.

Technical role: Air-filter-base sealing gasket for the carburetor air-entry flange.
Service relevance: Provides a replacement seal for Weber 38/40/42/45 DCOE, Dellorto DHLA, and Solex ADDHE air-filter-base service.

What Is Included

One air filter base gasket, MPN ST1913
Made in EU.

Important Fitment Note

Verify the carburetor family and any code or marking against Weber 38/40/42/45 DCOE, Dellorto DHLA, or Solex ADDHE identification before purchase. Compare the two-aperture geometry, overall flange shape, mounting-hole locations, and the air-filter-base interface with the removed gasket and mating components. This gasket has no threaded adjustment function; confirm the related stud or bolt arrangement and any applicable seat or flange style on the assembly.

Compare the removed gasket and both mating faces carefully before installation; do not rely on carburetor family name alone.

Why Buy From Us

We are based in the EU. We specialize in carburetor parts and classic performance fuel-system components, with clear product identification and practical support for restoration and repair projects. Parts are carefully prepared to help you get the correct components for your carburetor service.