12V Voltage Regulator P-121577C1 – Fits Farmall Cub, 185, 340, 460, 560 Gas Tractors

Got an old Farmall gas tractor that's not charging right?

This 12-volt regulator might be the fix.

It's a new part from Reliable Aftermarket Parts, and it fits a bunch of models including the Cub, 185, 340, 420, 460, 560, 660, and the LoBoy 185, plus some of the 70 and 100 series.

The main part number is 121577C1, but it also crosses to a ton of others like 182548M92, 376122R91, 21A616, and more—seriously, the list is long.

It's an ignition and electrical part, a regulator specifically.

Just one in the pack.

It's a universal replacement part, but you'll want to double-check it against your old one or your model number.

The UPC isn't listed, but the MPNs are all there.

Keep that old iron running.