This part fits the following vehicles:
#27150 - Reedy RC4020A HV Digital Competition Crawler Servo
#27153 - Reedy RT5012A HV Digital Competition 1:8 Servo
#27154 - Reedy RS1606A Low-Profile Titanium Gear Brushless Hi-Speed HV Servo
#27155 - Reedy RT2007A Low-Profile Titanium Gear Brushless Hi-Torque HV Servo