Volvo Penta Transom Shield Anode 3586461 | SX DP-S DP-SM Sterndrive
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Part Details
- Part Number: 3586461
- Brand: Volvo Penta
- Type: Sacrificial anode — transom shield location
- Material: Aluminum (recommended for saltwater and brackish-water use)
- System: Cathodic protection — transom shield on SX and DP-S / DP-SM sterndrives
- Aftermarket Cross-Reference: 3854130-AL / 3854130A
- Weight: Approx. 0.7 kg
- Important: 3586461 is the transom shield anode — not the trim tab anode. Confirm by drive model and the installed anode location before ordering.
About This Part
Genuine Volvo Penta 3586461 is an OEM sacrificial anode fitted at the transom shield location on selected Volvo Penta SX and DP-S / DP-SM sterndrives. It protects the transom shield and surrounding drive components from galvanic corrosion by sacrificing itself in place of the more valuable drive hardware. Current OEM market references identify 3586461 as an aluminum anode — Volvo Penta’s corrosion guidance recommends aluminum anodes for saltwater and brackish-water use, as they offer more efficient protection than zinc over the service life of the anode. Confirm fitment by drive model and installed anode shape; 3586461 is specifically the transom shield anode and should not be confused with the trim tab or lower-unit anode for the same drive family.
Compatible Applications
- Volvo Penta SX sterndrive — transom shield anode position
- Volvo Penta SX-M / SX-C / SX-R family — transom shield anode position
- Volvo Penta DP-S — transom shield anode position
- Volvo Penta DP-SM duo-prop — transom shield anode position
Confirm fitment by Volvo Penta drive model, serial number, and installed anode location. Match by OEM part number 3586461 and the transom shield position for the most reliable identification.
When to Replace
Replace this anode when it shows any of the following:
- Significant material loss — typically when more than 50% of the original anode has been consumed
- Heavy pitting, cracking, or crumbling of the anode surface
- Looseness at the mounting point
- Physical damage from impact or debris
Sacrificial anodes should be inspected at each haulout and replaced before the protection material is exhausted. Once the anode is consumed, the drive components it was protecting become vulnerable to galvanic corrosion. Never paint an anode or allow paint to cover its surface, as this will prevent it from functioning correctly.
Installation Notes
Install on a clean, bare-metal contact surface with all paint and oxidation removed from the mounting area. Do not paint over the anode. Confirm the replacement anode shape matches the 3586461 transom shield pattern before installation. Tighten mounting fasteners securely to ensure good electrical contact between the anode and the transom shield.
Cross-Reference Part Numbers
- OEM: 3586461
- Aftermarket cross-reference: 3854130-AL / 3854130A
- Note: No confirmed Volvo Penta OEM superseding number identified.
Parts Desk Insight
The most important clarification on 3586461 is location: it is the transom shield anode, not the trim tab anode. The two are different shapes and mounting positions, and ordering the wrong one is the most common mistake on SX and DP-S drive anode orders. When inspecting anodes at haulout, check all anode positions on the drive — transom shield, lower unit, and trim tab — as they typically wear at different rates and should be replaced individually as needed rather than always as a full set.
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
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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.
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