If you have installed a FASS fuel system in your late-model Paccar MX-13 engine without a frame-mounted water separator, the PAK2001 kit allows the FASS return and feed lines to be easily adapted to the factory fuel module. This kit includes fittings to adapt the FASS return and feed lines while retaining the factory fuel module fittings—and adapting the factory suction line to the FASS. The PAK-2001 Kit also includes a new spring and PRF to bring pressure down to around 12psi instead of the current 16-18psi. This kit pairs with FASS Industrial Series Fuel Systems.
NOTE: to get FASS warranty coverage for your product you must fill out their registration form here.