Lister Petter Fuel Injector assembly 372460, used in the AC/AD1 models of engines RD-20 if your having issues with

if your having issues with low oil pressure shut down this sensor has nothing to do with that problem

LPW3/S series engines

this gasket measures 0

The sensor that  is used with this gauge will be part number 50520

Lister Petter Fuel Injector assembly 372460, used in the AC/AD1 models of engines RD-20 if your having issues with372460 Fuel injector used in the AC AD1 engines, these engines were used in marine applications, Military and construction equipment applications . Companies that used these engine were ComPac, Aerotech Herman Nelson, Ampac, Allmand signal boards. This will be item number 38 and it includes item #39 also.