The Drive Spare Ring is a direct replacement part for worn or broken drive rings found in Raymarine Autopilot 4000 MK2 Wheel Pilot units.
- Replacement drive ring
- Assists in steering your boat to a heading automatically, accurately and reliably
- Designed for use with Raymarine's 4000 MkII autopilot system wheel drive
- Reassembles with Bearing Kit A18085 (sold separately)