VICKERS-1CE25-F6T-20S-3

For harvester applications, the 1CE20 series is exactly what you're after. These are SICV motion control valves built for mobile equipment like harvesters and refuse haulers, and this particular valve handles flows up to 20 litres per minute through a 3/8-inch port. The pilot-assisted relief with check configuration is what keeps load movement stable and controlled, which matters a lot when you're dealing with varying duty cycles in the field. ISO 8643 compliance also means it meets the certification standard for mobile hydraulic motion control circuits.

It's designed for demanding mobile applications, and harvesters are specifically listed as one of its intended uses, so it should be suitable provided the specs align.