LF3970 is a Fleetguard full-flow spin-on lube filter, and it is confirmed as a compatible oil filter for the MacDon M150 windrower through cross-reference data linking it to the MacDon OEM number 111974 . The M150 is powered by a Cummins QSB4.5 engine, and the LF3970 is listed for MacDon M150 applications with that engine platform.
