Drain Water Separator—Daily

N98721-UN-17SEP12

Water Separator—6.8 L Engine

N108577-UN-04DEC13

Water Separator—9.0 L Tier II/Stage 2 Engine

N103026-UN-12JUN13

Water Separator—9.0 L Engine

A - Drain Valve

B - Primary Filter

C - Secondary Filter

IMPORTANT: When draining water from fuel filters, the drain valve must be unthreaded completely and the valve must drop down approximately 12 mm (0.5 in.) to properly drain water from filter.

Drain water and contaminates from water separator bowl by opening the drain valve (A) on the primary (B) and secondary (C) filters.

IMPORTANT: Replace fuel filters if an excessive amount of water or sediment is present. (See Replacing Fuel Filters in the Engine and Drivetrain section.)