12V 3-Wire Trim Sender Sensor for Volvo Penta SX Drives – Digital/Analog Gauge (Replaces 3849411, 3849413, 3855535, 3863007)

Product Details

This 12V 3-wire trim sender sensor is designed for compatible Volvo Penta SX drive applications using a digital or analog trim gauge. It provides trim-position feedback to help the gauge indicate the position of the drive during operation.

This is an aftermarket replacement sensor. The company application data identifies it for the Volvo Penta SX drive models listed below and references Volvo Penta and OMC Cobra part numbers for identification.

• 12-volt electrical specification
• 3-wire configuration
• For compatible SX drive trim systems with digital or analog gauges
• Single replacement trim sender sensor

Part Number Matrix

Use the following manufacturer references to compare against the sensor being replaced. Confirm the drive model, gauge type, wiring and connector before ordering.

Engine & Model Compatibility

The company application data lists the following SX drive models. Model names, gauge type and wiring configuration must all match before installation.

Technical Specs

Component

Trim sender sensor

Voltage

12V

Wire Configuration

3-wire

Gauge Application

Digital or analog trim gauge

Drive Application

Volvo Penta SX drive models listed above

Product Type

Aftermarket replacement sensor

What's in the Box

• 1 Piece Trim Sender Sensor, 12V 3-wire

Installation Notes

1. Disconnect the negative battery terminal before beginning electrical work.
2. Access the existing trim sender sensor on the compatible SX drive assembly.
3. Note the original wire positions and disconnect the existing 3-wire connection.
4. Remove the original sensor and retain any reusable mounting hardware.
5. Install the replacement sensor in the same position and secure it with the appropriate hardware.
6. Reconnect the wires in their original positions and check that the connection is secure.
7. Reconnect the battery and test trim movement and gauge response before returning the boat to service.
8. If the gauge reading is incorrect, stop operation and verify the model, wiring, connector and sensor position against the service information for the drive.

Troubleshooting & FAQ

How do I know if my trim sender is failing?

Common symptoms include erratic trim-gauge readings, a gauge that remains at one position while the drive moves, or a complete loss of trim indication. Inspect the wiring and connector first, then perform electrical tests specified in the applicable service information.

Is this compatible with all Volvo Penta drives?

No. The listed application is limited to the specified SX drive models with a 12V, 3-wire trim-sender system used with a digital or analog gauge. Do not assume compatibility with DP, SP or other drive families without confirming the exact application.

Can I install this myself?

Installation requires access to the drive assembly and familiarity with marine electrical connections. Follow the applicable service information, disconnect the battery before work and use professional assistance if you are not comfortable servicing the trim system.

Will this require calibration after installation?

Calibration or adjustment requirements depend on the drive, gauge and control system. Test the full trim range after installation and follow the applicable service procedure if the gauge does not read correctly.

What causes trim senders to fail?

Common causes include corrosion, moisture intrusion at the connector, vibration, mechanical wear and damage from the marine environment. Inspect the sensor, wiring and connector during routine service.

Is this an OEM part?

No. This listing is for an aftermarket replacement trim sender sensor. The manufacturer references shown above are provided for identification and application comparison.

Safety & Important Info

• Verify the exact SX drive model, gauge type, 12V specification and 3-wire configuration before ordering.
• Compare the replacement sensor and connector with the original part before installation.
• Disconnect the battery before servicing electrical connections.
• Professional installation is recommended when servicing drive or marine electrical components.

About Sea Sierra

• Marine replacement parts for service and repair applications.
• Product information is provided to help match the component to the correct marine system.
• Confirm application details before ordering to reduce installation and fitment issues.