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Volvo Penta Trim Switch / Power Trim Control Unit – DP-D1, DP-C, DP-E, DP-G, DPX, SP-C1, SP-E, SX – OEM 3855650, 873617, 853846, 3855560

Regular price $38.50

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Orders are typically processed within 1–2 business days.


U.S. orders usually arrive within 6–15 days, depending on stock location and destination.


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If you have any questions, feel free to email us at info@seasierra.com, and we’ll get back to you within 20–36 hours.

Product Details

This Volvo Penta trim switch / power trim control unit is a replacement control-panel component for specified Volvo Penta sterndrive applications. It is listed for DP-D1, DP-C, DP-E, DP-G, DPX, SP-C1, SP-E, and SX systems.

The listed Volvo Penta reference numbers are 3855650, 873617, 853846, and 3855560. Compare the part, connector arrangement, and existing reference number before ordering.

  • Trim switch and power trim control unit application
  • Designed for specified Volvo Penta DP, SP, and SX sterndrive systems
  • Single replacement control unit
  • Suitable for control-panel installation when the original configuration matches

Part Number Matrix

These are the manufacturer reference numbers listed for this product. A number appearing in the same this listing does not by itself confirm suitability for every model configuration, so always compare your original part before installation.

Brand Reference Part Number
Volvo Penta 3855650
Volvo Penta 873617
Volvo Penta 853846
Volvo Penta 3855560

Engine & Model Compatibility

This listing covers this trim switch / power trim control unit for the following Volvo Penta sterndrive models. Year, serial-number, and individual boat wiring conditions are not specified.

Brand Model Listed Reference Numbers
Volvo Penta DP-D1 3855650, 873617, 853846, 3855560
Volvo Penta DP-C 3855650, 873617, 853846, 3855560
Volvo Penta DP-E 3855650, 873617, 853846, 3855560
Volvo Penta DP-G 3855650, 873617, 853846, 3855560
Volvo Penta DPX 3855650, 873617, 853846, 3855560
Volvo Penta SP-C1 3855650, 873617, 853846, 3855560
Volvo Penta SP-E 3855650, 873617, 853846, 3855560
Volvo Penta SX 3855650, 873617, 853846, 3855560

Technical Specs

Product Type
Trim switch / power trim control unit
Brand Application
Volvo Penta stern-drive and out-drive systems
Listed OEM Reference Numbers
3855650, 873617, 853846, 3855560
Listed Compatible Systems
DP-D1, DP-C, DP-E, DP-G, DPX, SP-C1, SP-E, and SX
Quantity
1 control unit

What's in the Box

  • 1 × Trim switch / power trim control unit

Installation Notes

  1. Disconnect the battery negative terminal before beginning work.
  2. Locate the existing trim switch or power trim control unit on the control panel or helm station.
  3. Compare the replacement part, connector arrangement, and terminal layout with the original component.
  4. Carefully disconnect the wiring from the old unit, recording wire positions for reference.
  5. Remove the mounting screws or fasteners securing the original unit.
  6. Position the replacement unit in the control-panel opening and align the mounting points.
  7. Reconnect the wiring to the corresponding terminals or connector.
  8. Secure the unit with the original fasteners without overtightening.
  9. Reconnect the battery and test trim operation in both directions before returning the boat to service.

Troubleshooting & FAQ

Which Volvo Penta models are listed for this switch?

The listed applications are DP-D1, DP-C, DP-E, DP-G, DPX, SP-C1, SP-E, and SX. Confirm the original reference number and connector configuration before ordering.

Which reference numbers are listed for this product?

This listing covers Volvo Penta reference numbers 3855650, 873617, 853846, and 3855560.

How do I know whether my existing unit has failed?

Possible symptoms include unresponsive trim controls, intermittent operation, or loss of operation in one or both directions. Check the battery, fuse, wiring, connectors, and related trim-system components before replacing the switch.

Can I install this unit myself?

Installation requires basic marine electrical knowledge. Disconnect the battery before working, document the original wiring, and follow the wiring information for your specific Volvo Penta installation. Seek professional assistance if the wiring or connector arrangement does not match.

Does this listing include a complete trim system?

No. This listing is for one trim switch / power trim control unit only. It does not state that a pump, motor, wiring harness, relay, or other trim-system components are included.

Are year and serial-number ranges provided?

No year or serial-number ranges are provided. Use the listed model information together with your original part number and connector configuration to verify suitability.

Safety & Important Info

  • Disconnect the battery before removing or connecting electrical components.
  • Verify the part shape, connector, terminal layout, and listed reference number against your original unit before purchase.
  • Do not rely on the model name alone when configurations may vary.
  • Professional installation is recommended if you are uncertain about marine electrical wiring.

About Sea Sierra

  • Marine replacement parts for repair and maintenance applications.
  • Product information is organized around manufacturer references and listed application data.
  • Compare the original component and fitment details before ordering.

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