Volvo Penta power trim ram for a DP-C, DP-D, DP-D, DP-E, DP-G and a DPX Sterndrive.
Two are required and they should be changed as a pair. Any evidence of oil on the ram indicates that the ram has failed or is about to fail, allowing seawater into the piston ram.
Volvo Penta part number: 3860881
For Volvo Penta: DP-C, DP-D, DP-D, DP-E, DP-G, DPX