RKV4G40 RKV4G40HD-F24 4000 PSI Pressure Washer Pump Replaces RSV4G40 RRV4G40

AR RRV4G40D F24 4000PSI Pump

1 Will I be able to get parts for this pump if one small part breaks- or will I have to replace the whole pump if parts go bad? Rkv4g40 rkv4g40hd-f24 4000 psi pressure washer pump replaces rsv4g40 rrv4g40 out of those ten just a few of them, to our knowledge, had parts readily available.