MACFARLANE - MAXiAVR R438 for Leroy Somer

The MAXiAVR R438 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

All of our AVRs are field type tested.

ON SALE plus FREE SHIPPING AUSTRALIA WIDE!

GENUINE LEROY SOMER BRANDED R438 AVRs are also available for Marine certification applications. Order# LS-R438.


Established in Victoria in 1949, Macfarlane Generators has grown to serve Queensland, New South Wales and Perth since 1982. With over 80 specialized staff members, we cater to industrial, commercial, domestic, and recreational power needs. Partnering with global manufacturers, we offer the best-in-market generator sets. Our services include spare parts, technical support, routine maintenance, and custom solutions. Whether new or used, we ensure reliable power solutions for a diverse range of applications.

Go to the Macfarlane Generators showroom on Machines4u to see the rest of our stock, send Macfarlane a message about the item you are interested in, or give Macfarlane Generators a call, we are happy to answer any of your questions.