TU-32-6 Hose + Gauge For GM 6.6L Duramax Diesel Fuel Pressure System Vacuum Test Kit. Application: Fits For GM 6.6L Duramax engines for Diesel fuel pressure and vacuum testing. Function: Gauge assembly with 6-ft Hose and quick coupler, providing a simple and convenient solution to testing your low-pressure fuel and vacuum systems in one gauge.
