[CA] Upgrade question

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum elmoray,

Thanks for your interest in Raymarine's Evolution autopilots. Unfortunately, Raymarine has not produced a drive unit having the name Type 25 Linear Drive. However, Raymarine has produced to linear drives having similar names. These are:
- 12V: M81131 | 24V: M81133 Type 2 Short Mechanical Linear Drive
- 12V: M81132 | 24V: M81134 Type 2 Long Mechanical Linear Drive
- 12V: E12207 | 24V: E12208 Type 2 Hydraulic Linear Drive

It is recommended that the drive unit's serial number plate/label be inspected to verify that the drive unit is one of those listed above. If so, then the following Evolution Autopilot packages would be recommended for powerboats and sailboats respectively which have been equipped with one of these drive units:
- T70162 EV-400 Power
- T70161 EV-400 Sail