Caterpillar N39520 C6.6 MCS Engine Wiring Harness - Used

Caterpillar C6.6 engine wiring harness, labeled "CATERPILLAR P/No. N39520 Issue.2 — C6.6 MCS Engine Harness," dated 2015. Complete harness with protective split-loom conduit, multiple sealed injector/sensor connectors, a round multi-pin machine interface plug, and factory circuit-ID sleeves including a "Fuel Pressure" branch tag. Application: Caterpillar C6.6 (Perkins 1106 base) diesel engine — exact arrangement (marine, auxiliary, or industrial) not verified; confirm against your engine serial and arrangement number. Condition: Used take-off, untested. Conduit and connectors appear intact and complete in the photos; label sleeves are soiled from service. No electrical testing has been performed and none is implied. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.