This fuel pressure gauge is suitable for ALL K-Jetronic, KA-Jetronic and KE-Jetronic engines. The system pressure, control pressure, holding pressure, differential pressure and the lower chamber pressure can be precisely measured with this device. This fuel pressure gauge is suitable for ALL K-Jetronic, KA-Jetronic and KE-Jetronic engines. The system pressure, control pressure, holding pressure, differential pressure and the lower chamber pressure can be measured precisely with this device. Due to the pressure gauge filled with glycerin, the pointer does not shake when measuring.The hydraulic hoses are pressure-resistant up to 35bar and therefore do not expand during measurement, so the result is not falsified. There is a drain valve under the manometer to release the pressure after the me.