DG4S4-01 50 Series Danfoss / Eaton Coils

These Vickers by Danfoss/Eaton coils are indeed suitable for harvesters, as well as refuse haulers and other mobile and industrial applications.

For older equipment that uses direct acting air gap solenoids, this coil is intended as a replacement part, and Viton seals are standard on this series.

Yeah, these are specifically made as replacement parts for older direct acting air gap solenoid equipment. Worth noting that for any new builds or fresh applications, the Wet Armature 60 Series is the recommended way to go. But if you're maintaining or repairing existing machinery that already uses the air gap style, these fit that role. Viton seals come standard, and they're rated for continuous duty, so they hold up in regular working conditions without needing to be babied.