The Garrett GVW‑40 valve seat, listed at 40mm, is specified as the replacement seating element for GVW‑40 wastegate assemblies. The listing provides the diameter to confirm fitment and is offered for use when servicing or rebuilding GVW‑40 wastegates, ensuring the correct valve seat is selected for proper sealing and component restoration.

Garrett GVW-40 Valve Seat 40mm