3819064 Fuel Filter Indicator Sensor Compatible with Caterpillar E312D2 and E320D2 excavators What this part does Monitors fuel filter condition and provides an electrical signal when service or replacement is needed. Acts as a direct replacement indicator sensor for part number 3819064, restoring accurate filter monitoring without modifying the fuel system. Key benefits Reduce unscheduled downtime by giving early warning of a clogged or saturated fuel filter. Simple directfit replacement minimizes workshop time and keeps equipment back on the job quickly. Reliable detection and consistent signal output for routine maintenance and fleet servicing. Important attributes Function: Fuel filter indicator sensor for excavator fuel systems. Compatibility: Fits E312D2 and E320D2 excavator models compatible with Caterpillar. Part number and color reference: 3819064. Design and material: Compact sensor body built for heavy equipment environments with durable construction for long service life. Performance: Stable, repeatable operation under typical engine and duty conditions, designed to work with original filter housings and wiring. Installation and use Plugandplay style replacement that aligns with original mounting and electrical connections. No special tools or modifications required for standard service procedures. Inspect wiring and connector seating during installation to ensure consistent signal transmission. Typical applications Routine field maintenance: the indicator sensor during scheduled fuel filter service to maintain accurate monitoring. Onsite : Swap the sensor during troubleshooting to confirm whether filter condition alerts are sensor related. Fleet maintenance: Use as a spare part for service vehicles to reduce downtime and simplify inventory management. Notes Confirm model compatibility and part number 3819064 before ordering to ensure proper fitment.