You're fitting out a boat's steering and the helm unit is the missing piece. This is the Multilex LM-H planetary gear steering box — the mechanical brain behind your wheel. It mounts behind the instrument panel where you want to steer from, and the steering cable runs through the included plastic tube (the receptacle for the played-out cable). Two parts in the box: the helm unit itself and that tube. Nothing else. If you're wiring up a new steering setup or replacing a seized unit on a trailer boat, fishing boat, or small runabout, this is the component that turns your wheel input into rudder movement. No electronics, no hydraulics — just gears doing their job
| brand | JAYCAR |
| model | Multilex LM-H |
| type | Planetary gear steering box (helm) |
| mounting_position | Behind instrument panel |
| kit_contents | Helm unit, plastic cable tube |
| operation | Mechanical planetary gear |
| category | Marine Steering Components |