CRITICAL FITMENT NOTE: This cable is specifically designed for "s" (Sounder) models within the GPSMAP 400 and 500 series. If your unit does not have an "s" in the model number (e.g., GPSMAP 546), you likely require the 010-10917-00 cable instead.

Key Features

• ✔ Integrated Sonar Plug: Supports transducer connection.
• ✔ Data Transfer: Bare wires for NMEA 0183 I/O.
• ✔ Weatherproof: Threaded 19-pin locking ring connector.
• ✔ Durable Build: Marine-grade shielded wiring.

Technical Specs

Connector:	19-Pin Threaded
Length:	Approx. 6ft (1.8m)
Fuse:	3A Inline Included
Pins Used:	Power, Data, Sonar

Series	Specific Models	Notes
GPSMAP 400 Series	420s, 421s, 430s, 431s, 440s, 441s, 450s, 451s	Sounder units only
GPSMAP 500 Series	520s, 521s, 525s, 526s, 530s, 531s, 535s, 536s, 540s, 541s, 545s, 546s, 550s, 551s, 556s	Sounder units only
Fishfinder Series	Fishfinder 300C, Fishfinder 400C	Fully Compatible

Is this a genuine original part?

Yes, this is a genuine Garmin replacement part, ensuring total compatibility and reliability with your marine electronics.

How do I know if I need the 10917 or 10918 cable?

If your GPSMAP unit supports a transducer (it usually has an "s" suffix like 541s) and you want to use the sonar features, you need this 010-10918-00 cable with the sonar plug. If your unit is a chartplotter only (no sonar features), you likely need the 010-10917-00.

Does it include the locking ring?

Yes, the 19-pin connector includes the threaded locking ring to ensure a watertight seal once connected to your device.