As a technician, I must advise that running Android 4.4.2 in the current security climate is risky. The last security patch for KitKat was released in . However, if you are stuck with this OS for hardware reasons (e.g., a car head unit, a digital signage tablet, or a vintage phone), installing the Google Play Services APK v21.24.56 is your lifeline.
The last version of Google Play Services to support Android 4.4.x is typically around Architecture Matters: Google Play Service Apk Android 4.4.2
Providing high-quality and lower-powered location and geofencing APIs. Google Maps API Integration: Allowing third-party apps to display native Google maps. Data Synchronization: As a technician, I must advise that running Android 4