WLFINKMO Trim Sender for Volvo Penta SX‑M DP‑S DP‑SM — 3‑Wire Replacement for 3849411 3855535 3863007 (Direct Fit)

If your Volvo Penta outboard drive has lost accurate trim-angle reporting or the gauge/ECU is showing erratic readings, this WLFINKMO trim sender provides a like-for-like swap for several OEM part numbers. It fits transom assemblies that use a three-wire sending unit and ships as a single complete sender ready for installation. The unit is intended to match fit and electrical connections of the original Volvo Penta components listed below, helping you avoid long downtimes or expensive dealer parts orders.

Which Volvo Penta models and part numbers does this trim sender replace?

This sender is built specifically for Volvo Penta SX-M, DP-S and DP-SM transom assemblies that use a three-wire trim/tilt sender. It is sold as a direct replacement for multiple OEM reference numbers, simplifying parts lookup.

• Compatible transom assemblies: Volvo Penta SX-M, DP-S, DP-SM
• Direct replacement for part numbers: 3849411, 3855535, 3863007, 3849413
• Designed to match three-wire electrical configurations

How easy is it to install the WLFINKMO trim sender?

Installation is typically straightforward for anyone comfortable with basic marine electrical and mechanical tasks. The unit is supplied as a single sender that bolts into the transom assembly and connects to the existing three-wire harness—no extra modules included or required.

• Swap-in replacement: removes and mounts in the original sender location
• Uses existing three-wire connector and harness routing
• No additional calibration required for most Volvo Penta systems

What should you check before ordering this replacement part?

Confirm the old sending unit’s part number and the transom assembly model before purchasing. Matching the part numbers listed ensures the new sender will fit mechanically and electrically without modification.

• Verify your current part number equals 3849411, 3855535, 3863007, or 3849413
• Ensure your transom assembly is SX-M, DP-S, or DP-SM and uses a 3-wire sender
• Compare connector type and mounting points to avoid fitment surprises

What comes in the package and what quality details matter?

The product ships as a single trim sender ready to install; mounting hardware from the original unit is typically reused. Buyers should note that while this is a replacement unit made to fit the same locations and wiring as the listed Volvo Penta parts, it’s important to inspect seals and connectors during installation for a watertight fit.

• Package contents: 1 x WLFINKMO trim sender (as pictured)
• Match existing gaskets or replace if worn to maintain water resistance
• Inspect electrical contacts for corrosion and secure wiring connections

Who is this for: Boat owners, marine mechanics and service yards working on Volvo Penta SX-M, DP-S or DP-SM outboard drives who need a reliable, drop-in replacement for a faulty three-wire trim sender. If your dash gauge or control system is reporting incorrect trim positions and your old sender carries one of the listed part numbers, this WLFINKMO unit offers a cost-effective alternative to OEM ordering while using the original mounting and wiring arrangement.