Rhino 554, JD550G dozer Gilson MTD riding mowers Ford 3000-Sold
Affordable or Circle G may be able to help
Amazon has as seller from china Timeway that with the correct info may be able to help.
These that are pictured are the newer design pumps but I think will mount up.
My Rhino has the same case style as what your Benye has. I considered upsizing the volume for faster hydraulics , but haven't pulled the trigger.
Volume, spline, rotation direction, case size and style, are in the code- see the final diagram in the linked amazon ad, it shows how the code corresponds to the pumps specs.