Genuine RKX AC control valve compatible with select Denso manufactured Air Conditioning compressors Please Read The Full Description And Physically Check Your AC Compressor Before Ordering! Always Order Based Upon Physical Appearance Of The Valve Installed In Your Compressor! Highest quality valve guaranteed! Don't waste your time with cheap valves! WITH DIODE Control valves with a Diode are typically compatible with Mercedes applications. Diode valves will usually have a yellow marking on the connector or a triangle. Partial list of known compatible part numbers: A0022305311 This valve will fit many 7SEU17C variant compressors. Please Always Physically Check Your AC valve Before Ordering!