Cummins 3685809 Injector Fuel Supply Tube | Used | for ISX15 Engines Cummins ISX15 D-2 is the dominant style

D-2 is the dominant style on most pre-2010 HD trucks

Fits the 2001-2007 Volvo VHD

Dayton: 334-1603

Goodyear: 3B12-312

Ford F-450 Super Duty (1999–2003)

Cummins 3685809 Injector Fuel Supply Tube | Used | for ISX15 Engines Cummins ISX15 D-2 is the dominant styleUsed genuine Cummins OEM injector fuel supply tube (part 3685809) for ISX15 high pressure common rail engines, pulled from a 2015 ISX15 400ST (service model CM2350 X101) core. The tube routes high pressure diesel from the common rail to the injectors and is one of the matched pair (companion 3685810) servicing cylinders 4 and 5 in this engine family. Specifications Manufacturer Cummins (Genuine OEM) Part Number 3685809 Part Type Injector Fuel Supply