Vacuum Non Return Valves by JMB Services

To fit DB2, DB4, DB5, DB6, DBS & V8 Aston Martins


Now available for 6 Cyl and V8 engines.

The 6cyl non return valves are made in-house using all metal for the outer parts.
The internal plastic and rubber parts are all serviceable meaning that they can be taken apart for cleaning and/or replacing.
V8 return valves are supplied like a sealed original item.