Caterpillar 5T8645 Vent Kit is an OEM replacement part for Cat fuel-system vent assemblies used with Cat Fast Fill configurations. Cat's cross-reference materials identify 5T8645 as the Vent Rebuild Kit (standard) for the FS-V150K Fast Fill System, confirming its role in restoring venting performance. The kit provides the necessary components to replace venting hardware on Caterpillar equipment that utilizes FS-V150K venting, helping maintain safe, reliable fueling operations.
