CAT Caterpillar 256-4883 Marine Power Electronic Troll Processor Module - Used

Caterpillar CAT Marine Power Electronic Troll Processor, labeled P/N 256-4883-00, serial 3064G019 IX, build date 11/01/04, with molded case number EEC-325X4 A. Two-connector module with "ECM J1939" and "TROLL VALVE" legends.

Application: CAT electronic marine propulsion engines fitted with a transmission-mounted trolling (slow-speed) valve; the module interfaces the engine ECM J1939 link to the troll valve. The exact engine model, transmission, and vessel configuration for this specific unit are not verified — application must be confirmed by the buyer.

Condition: Used, untested take-out. Housing intact with light dirt and scuffing; connector pins appear straight and clean in the photos; both mounting bosses intact. Module only — no harness, brackets, or hardware. No functional or bench testing has been performed and no operational claim is made.

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.