Volvo Penta 3849411 Trim Position Sender – 3-Wire | SX & DP Sterndrive
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Volvo Penta 3849411 – Trim Position Sender
Part Number: 3849411
Brand: Volvo Penta
Type: Trim Position Sender / Sending Unit
Configuration: 3-wire
System: Sterndrive trim indication (analog)
OEM: Yes – genuine Volvo Penta
The 3849411 is a genuine Volvo Penta OEM trim position sender designed for selected SX and DP sterndrive transom assemblies. It transmits sterndrive trim angle to the helm-mounted analog trim gauge, giving the operator a continuous read on drive position while trimming or tilting.
Compatible Applications
Match by transom assembly and serial number. Confirmed drive applications include:
- SX-M
- DP-S
- DP-SM
Additional SX transom-shield configurations that may apply (verify by serial number):
- SX-C, SX-C1, SX-C2
- SX-R, SX-R1, SX-R2
- SX-CLT, SX-CLT1
- SX-MAC, SX-MACLT, SX-MBAC
- SX-MDA, SX-MDB, SX-MDC
- SX-MHP, SX-MLT
Superseded & Alternate Part Numbers
- Current OEM number: 3849411
- Supersedes: 3855535, 3863007, 3849413
- Older cross-references: 3594989, 3854842, 3861837, 3863129, 769543 / 0769543
Serial Number & Fitment Notice
Volvo Penta used more than one trim sender configuration across SX and DP drive generations. The 3849411 is specifically a 3-wire sender for analog trim gauge systems and is not a universal replacement for digital trim-indication setups. Always confirm the transom assembly, wiring configuration (2-wire vs. 3-wire), and serial-number range before ordering.
When to Replace
Replace the trim sender when the trim gauge becomes inaccurate, erratic, intermittent, or stops responding as the sterndrive moves. Damaged wiring, corrosion, water intrusion, or wear within the sender body can all produce incorrect trim-position readings.
Installation Notes
Before removal, confirm the original unit is a 3-wire sender. During replacement, inspect the sender wiring, transom pass-through, mounting hardware, and harness connections. After installation, verify trim-gauge operation through the full operating range and adjust sender position as required by the applicable Volvo Penta service procedure.
Dimensions & Weight
This is a compact sending unit. Exact installed dimensions vary by transom assembly. Shipping weight: approximately 0.15 kg (0.33 lb).
Related Parts
Parts Desk Insight
The most common ordering mistake with this sender is matching by appearance only. On SX and DP systems, identifying whether the original unit is 2-wire or 3-wire first eliminates most fitment errors. Once the wire count is confirmed, match to the exact transom assembly and serial range — this part is best suited for analog gauge systems and will not work correctly with digital trim-indication setups. Corrosion at the transom pass-through is the leading cause of sender failure, so inspect the harness and connector thoroughly before assuming the sender itself is the fault.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.