Trim control switch with separate black housing
This unbranded replacement is listed for selected Volvo Penta sterndrive controls under references 3856844 and 3856839. The photo shows one black switch body with three flat metal terminals and a separate angled black housing with a rectangular opening. Check the switch and housing against the parts fitted to your control lever.
The switch has a projecting operating button and a mounting flange. Its terminals are exposed at the rear. No wire harness, complete throttle control or trim pump is pictured. The part serves the trim-control function at the lever; the throttle mechanism and other switches in the control require their own inspection.
Pictured parts and connections
- Switch supplied
- One black switch body with projecting operating button
- Separate housing
- One angled black piece with rectangular opening
- Electrical terminals
- Three flat metal terminals, visible at the rear
- Mounting features
- Switch flange and housing attachment features, as pictured
- Listed references
- 3856844 and 3856839
- Part origin
- Unbranded replacement
Identify the installed control
Use the control's identification and parts diagram to confirm the required trim switch. Volvo Penta controls include different top-mounted and side-mounted arrangements. The engine or sterndrive name alone does not establish that the lever housing and switch mount match this replacement.
Compare the rectangular opening, mounting flange, housing profile and terminal layout with the original. Housing dimensions, mounting-hole spacing, terminal width, electrical ratings and contact operation are not specified here. Confirm the circuit connections using the control's wiring information before installation.
Inspect the trim circuit before replacing the switch
Check the wiring and terminal connections when diagnosing missing or intermittent trim response. Follow the service procedure for the fitted control, keep the terminals correctly insulated and verify the required trim operation after reassembly. A damaged pump, relay, harness or hydraulic component needs its own diagnosis; replacing this switch does not establish that the complete trim system is working correctly.
