R438 AVR for Leroy Somer
The R438 AVR replaces the Leroy Somer RS437 and R438LSC AVRs. It is used with AREP or PMG excitation on LSA42.3, LSA43.2, LSA44.2 and LSA44.3 Leroy Somer Alternator models.
These are the replacement AVRs for FG Wilson and Caterpillar Gensets. Part # 922-045
GENUINE LEROY SOMER BRANDED R438 AVRs are also available for Marine certification applications.
Free Shipping Within Australia! All of our AVRs are field type tested.