The part number is VFG80R and is available from any Parker distributor. It is very nice to be able to see the vacuum gauge while driving. Before I could only check while stopped and at idle.
The first thing I saw was that at idle the gauge was in the green. Then I jumped on it and the RPM's reach up around 3,000, the gauge went way into the red. Changed the filter and it stayed solid in the green at any RPM range. Up until now I would have had no idea since I was only ever seeing it at idle.
Erick Panger http://www.leskwvo.com
2005 F250 PSD
Plant Drive Two tank WVO system.
Hotstk, Vormax, A1000 and Vegtherm