This is an Aftermarket Fisher 2" X 16" MC Angling Cylinders. This was used on Fisher's big Minute Mount MC Series plows. 

Bore x Stroke: 2" X 16"

Acting: Single

Retracted: 23-1/4"

Extended: 39-1/4"

Ram Dia: 2"

Base Dia: 2-1/4"

Pin Size: 1-1/4"

Port Type: 1/4" NPT

Port Location to Pin: 90 Degree

Alternate Part Numbers: A5166, A5166K, FA5166, FA5166K, 1304310, SNP8166