Volvo Penta Power Trim & Steering Fluid 3851039
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Volvo Penta 3851039 is a genuine OEM lubricant formulated for Volvo Penta power steering, hydraulic steering, and power trim systems. Current public Volvo Penta parts sources identify it as “Lubricant, fluid, trim & steering”, and multiple current reseller references describe it as the correct fluid for Volvo Penta steering and trim applications where this exact number is specified. It is packaged as a 16 oz bottle and is designed to resist foaming, oxidation, rust, and corrosion while helping protect seals in hydraulic systems.
Key Features
- Genuine Volvo Penta OEM fluid, part number 3851039.
- Formulated for power steering, hydraulic steering, and power trim systems.
- Designed to resist foaming, oxidation, rust, and corrosion.
- Helps reduce seal swell and deterioration that can lead to leakage.
- 16 oz bottle, sold individually in current listings.
- Current Volvo-style parts references label it as trim & steering fluid rather than a general-purpose grease or engine lubricant.
Engine Compatibility
The strongest supportable fitment trail for Volvo Penta 3851039 is by system type rather than by one narrow engine family. Current public sources consistently support it for Volvo Penta hydraulic steering, power steering, and power trim systems, especially on outboard and sterndrive applications where this fluid is specified. Because fluid requirements can vary by system design and prior service history, the safest fitment standard is the exact Volvo Penta owner or parts guidance for the steering or trim system being serviced.
Serial Number Fitment Notice
Fluid requirements can vary by steering system, trim system, and prior maintenance history. Confirm Volvo Penta part number 3851039 against the correct Volvo Penta service information for your exact steering or trim application before topping off or refilling, especially if the fluid already in the system is unknown. Current public guidance specifically warns not to mix this fluid with other oils or steering fluids.
When This Part Needs Replacement
Replace or top up this fluid when servicing Volvo Penta power steering or trim systems, when the system requires the specified hydraulic fluid, or when the existing fluid is degraded, contaminated, or low. If the current system fluid is unknown or may be mixed, current public guidance supports draining, flushing, and refilling with the correct fluid rather than topping off blindly.
Installation Notes
Use this fluid only in the Volvo Penta steering or trim applications that call for 3851039. Do not mix it with other steering fluids or oils. If the existing fluid type is uncertain, a complete drain and refill is the safer service approach. Because this is a system fluid rather than a hardware part, cleanliness during filling and avoiding cross-contamination matter just as much as using the correct bottle.
Alternate/Superseded Part Numbers
Use Volvo Penta 3851039 as the primary ordering number. Current public listings consistently present 3851039 as the active OEM identifier for this trim and steering fluid. Some public cross-reference listings show related aftermarket or alternate retail numbers, but 3851039 is the correct Volvo Penta ordering number for this listing.
Parts Desk Insight
This is the kind of product that gets mistaken for a generic hydraulic fluid, but Volvo Penta steering and trim systems are much better off with the exact specified fluid. If the fluid already in the system is unknown, flushing and refilling with the correct OEM fluid is usually safer than mixing and hoping the chemistries play nicely.
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Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 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.
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