WLFINKMO Trim/Tilt Sending Unit for Volvo Penta SX‑M DP‑S DP‑SM — Single 3‑Wire Direct-Fit Replacement

WLFINKMO trim/tilt sending unit for Volvo Penta SX-M, DP-S and DP-SM replaces part numbers 3849411, 3855535, 3863007, 3849413 to restore accurate trim angle readings.

Designed as a direct-fit replacement for the three-wire trim sender used in a range of Volvo Penta outboard transom assemblies, this WLFINKMO sending unit helps bring back reliable trim position feedback for gauges and control modules. It ships as a single unit ready to install and is intended for users who need an OEM-style swap without modifying wiring or brackets. Verify your old part number against the listed replacements before ordering to ensure compatibility.

How will this trim sender affect my boat’s trim readings?

Replacing a worn or faulty sending unit returns correct angle data to your gauge or helm electronics, improving situational awareness while trimming the motor. The unit is built to match the original three-wire configuration used on SX-M, DP-S and DP-SM transom assemblies.

• Restores accurate trim angle reporting to dashboard instruments
• Works with existing three-wire harness—no rewiring needed
• Direct-replacement fit for the listed Volvo Penta part numbers
• Single-piece package—includes one sending unit as shown

Will this part fit my Volvo Penta model?

Compatibility is determined by the transom assembly type and the sending unit wiring. This WLFINKMO sender fits SX-M, DP-S and DP-SM assemblies that use a three-wire sending unit. Always compare your old part number to the replace list before purchase.

• Compatible with Volvo Penta SX-M, DP-S, DP-SM transom assemblies
• Replaces part numbers 3849411, 3855535, 3863007, 3849413
• Requires a three-wire sender configuration on the transom
• Not for assemblies using different connector types or wire counts

How straightforward is installation and what should I check first?

Installation is typically a straightforward swap: disconnect battery power, unplug the old sender, remove mounting hardware, and fit the new unit in place. Confirm matching part numbers, inspect connectors for corrosion, and secure wiring to prevent chafing before powering up.

• Turn off battery and electronics before starting
• Compare part numbers to ensure an exact match
• Clean connector contacts and replace corroded fasteners if needed
• Test trim readout after installation to verify operation

What performance and durability can I expect from this replacement?

Manufactured to match common OEM dimensions and electrical connections, the unit provides dependable feedback when installed correctly and maintained. It’s intended as an economical, functional replacement rather than an upgraded high-end aftermarket sensor.

• OEM-form replacement for reliable, standard performance
• Sealed housing reduces water intrusion when mounted properly
• Three-wire design maintains original gauge compatibility
• Sold individually—one sender included per package

Who is this for: boat owners, marine technicians, and DIY mechanics who need a direct replacement trim/tilt sending unit for Volvo Penta SX-M, DP-S or DP-SM outboard transom assemblies with a three-wire sender. Ideal if your current sender shows inconsistent gauge readings, fails diagnostic checks, or has visible corrosion; confirm your old part number matches one of the listed replacements (3849411, 3855535, 3863007, 3849413) before purchasing.