Use this 10 ft (3 m) extension cable to connect your 4-pin transducer to your sonar unit.
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov.
Transducer - Accessories, Transducers
Garmin 010-11617-10 10′ 4-Pin Extension Cable
$39.99
Garmin
Model: 010-11617-10
Availability: In stock (can be backordered)