Quarter-Turn locking Collars for Discontinued Garmin Chartplotters

Some discontinued models require a quarter-turn locking collar. Below are the part numbers for the Quarter Turn Locking Collars. Online retailers may still have stock available.  

11mm Cables

• Quarter Turn Locking Collar - K00-00494-01

  • 7-pin power cable (any)

  • 2-pin power cable GPSMAP 4xxx, and 5xxx series (verify quarter-turn)

  • Power cable GHC 10, GHP 10 ECU 

  • The coiled cable on GHS 10 

  • 6-Pin transducer cable 

  • VHF 200 fist microphone

  • VHF active speaker

  • VHF 300 power cable

  • All Garmin Marine Radar systems¹

¹ check for threaded or quarter turn port. Depending on the manufacture date, all Garmin radars could contain a threaded or a quarter-turn connector. Confirm which collar is needed before placing an order.

² This only applies to GHP 10 ECUs packaged in the Reactor 40 Core packs

14.5 mm Cables

• Quarter Turn Locking Collar - K00-00494-21

  • 19-pin power cable  GPSMAP 4x0 and 5x0 series 

  • NMEA 0183 cable GPSMAP 4xxx, and 5xxx series (verify quarter-turn)

  • Interconnect Cable - GHP 10 - CCU to ECU 

18mm Cables

• Quarter Turn Locking Collar - K00-00494-11  -  No long available

  • Video cable - GPSMAP 3xxx, 4xxx, and 5xxx series