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Power Trim Control Unit 3855650 – Volvo Penta DP SP SX
- $68.99
- $68.99
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How to Match This Part
This aftermarket Power Trim control unit replaces Volvo Penta 3855650. It is the helm panel switch used to operate sterndrive power trim and tilt — raising, lowering, and trimming the outdrive from the control station. It is not an engine sensor, and it is not a toggle-style trim switch on a control lever.
Match this part in this order:
1. OEM number on the removed control panel or in your parts catalog — 3855650, or superseded numbers 873617, 853846, or 3855560
2. Outdrive model stamped on the drive identification plate — DP, DPX, SP, or SX family listed below
3. Physical form — compare connector style and panel layout to the product images once media are uploaded
Confirm the OEM number and your sterndrive model designation before ordering. Do not match by engine displacement or boat year alone.
Part Number Cross-Reference
Use this table to confirm Volvo Penta numbers in the 3855650 Power Trim control unit path. Note that 3855560 and 3855650 are different numbers — verify which appears on your removed panel.
| Type | Brand | Part Number | Notes |
|---|---|---|---|
| Primary OEM Reference | Volvo Penta | 3855650 | Current Power Trim control unit |
| OEM supersession | Volvo Penta | 873617 | Earlier control panel; superseded by 3855650 |
| OEM supersession | Volvo Penta | 853846 | Earlier number in the same supersession path |
| OEM supersession | Volvo Penta | 3855560 | Related superseded / equivalent panel number (not the same digits as 3855650) |
Part numbers are listed for identification only. This is an aftermarket part manufactured by JLM Marine and is not sold as a genuine Volvo Penta component.
Compatible Engine Models
Fitment is by sterndrive model designation, not by engine displacement or boat production year. Confirm the model stamped on your drive plate and the OEM number on the removed panel. Cross-check with the Parts Diagrams for your drive group when available.
| Brand | Drive / Application | Notes |
|---|---|---|
| Volvo Penta | DP-D1, DP-C, DP-E, DP-G | Duoprop sterndrives calling for 3855650 path |
| Volvo Penta | DPX | DPX series sterndrive power trim applications |
| Volvo Penta | SP-C1, SP-E | Single-propeller sterndrives |
| Volvo Penta | SX | SX series sterndrive power trim applications |
Important: Engine HP, displacement, and boat year alone do not confirm fitment. Always verify the drive model and the OEM number on the removed control panel.
Technical Specifications
| Specification | Value |
|---|---|
| Part type | Power Trim control unit (helm trim & tilt control panel) |
| Primary OEM number | 3855650 |
| Also replaces | 873617, 853846, 3855560 |
| System | Volvo Penta sterndrive power trim / tilt |
| Mounting | Helm / control-panel mount |
| Function | Operate drive trim angle and full tilt from the helm |
Installation Guide
1
Disconnect the battery negative cable before working on trim or helm electrical circuits.
2
Locate the existing Power Trim control panel at the helm. Note the mounting fasteners and the wiring connector orientation, then carefully unplug the harness.
3
Compare the removed panel’s OEM number and connector style to this 3855650 replacement and to the product images. Do not force a mismatched connector.
4
Install the new control unit in the same panel opening, reconnect the harness fully seated, restore battery power, and test trim-up, trim-down, and full tilt before returning the boat to service.
Note: If the harness plug, panel cutout, or button arrangement does not match, stop and re-check the OEM number. Have a marine technician complete the install when trim hydraulics or wiring are unfamiliar.
Troubleshooting & FAQ
Why Choose JLM MARINE?
- Precision Fit: Matched to Volvo Penta 3855650 Power Trim control unit applications and the verified 873617 / 853846 / 3855560 path.
- Quality Control: Each batch is inspected for dimensional consistency and workmanship.
- Direct from Manufacturer: Aftermarket marine parts engineered for reliable sterndrive trim control service.
We can ship to virtually any address in the world with free shipping available for most regions.
For our typical US and Canadian customers , our shipping timeframes are as follows:
- Amazon FBA: orders will be delivered within 1-5 business days after placing the order (during certain special periods such as major promotions, Christmas, etc., the delivery time of Amazon FBA may be affected).
- US warehouse shipment: orders will be delivered within 5 days after placing the order.
- China warehouse shipment: orders will be delivered about 12 days after placing the order.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.
As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.
We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.
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