The KI203, KI208, KI204, & KI209 indicators feature an internal VOR/ LOC converter and are compatible with the KX155 transceiver. The KI203 & KI204 have rectilinear meter movement, while the KI208 & KI209 feature pivot needle action. The KI206 has rectilinear meter movement and works with the KX165 & KNS80. The KI209 includes GPS interface capability.
The KI 203 VOR/LOC Indicator with built-in VOR/LOC converter and scallop rejection filter has rectilinear needle action and an optically coated glass lens. Dimensions: 3.25" X 3.25" X 9.85"
Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
Per the Garmin install manual, yes the KI 203 CDI will work.
Yes the KI 203 will function with the KX125.
We cannot find any supporting documentation showing this would be compatible with the MX300B.
The King KI-203 may be used with the following equipment:
KX-155 NAV/COMM (without Glideslope) - 14V or 28V
KX-155A (without Glideslope), 28 V only
KN-53 NAV Receiver (without Glideslope)