Volvo Penta Power Steering Fluid Reservoir 3863190
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Part Details
- Part Number: 3863190
- Brand: Volvo Penta
- Official Product Type: Power Steering Fluid Reservoir
- Supersedes: No confirmed superseding number on record
- Replaced By: 3863190 is the current active part number
- Engine Family: Volvo Penta D4 and D6 sterndrive
- System: Hydraulic power-steering system — supplies fluid, provides expansion volume, and returns flow from the steering circuit
- Diagram Position: Item 10 in applicable Volvo Penta steering schematics, including the D6-280A-A arrangement
- Kit Contents: Reservoir body only — cap, hoses, clamps, and mounting components are separately catalogued
Compatible Applications
Fitment depends on engine version, steering configuration, and serial number. Use only where the Volvo Penta steering diagram specifies 3863190. Confirm the complete engine designation and serial number before ordering.
- Volvo Penta D4 sterndrive packages (selected versions)
- Volvo Penta D6 sterndrive packages (selected versions)
- D6-280A-A steering installations
Serial Number Fitment Notice
D4 and D6 installations may use different reservoirs, hose arrangements, mounting brackets, and steering-system configurations depending on production date and propulsion package. Confirm the complete engine designation and serial number before ordering — do not select by appearance alone.
When This Part Needs Replacement
Replace the reservoir when inspection reveals any of the following:
- Cracks, splits, or fluid seepage from the reservoir body
- Damaged or deteriorated hose-connection surfaces
- Distorted or broken mounting points
- Contamination that cannot be safely removed
- A damaged cap-sealing surface
- Heat or age-related deterioration of the reservoir material
- Persistent fluid loss traced to the reservoir body
A falling fluid level may also indicate leakage elsewhere in the steering circuit. Inspect hoses, the pump, cooler, and all connections before returning to service.
Installation Notes
Transfer only reusable components approved for continued service. Inspect the reservoir cover, hydraulic hoses, clamps, mounting bracket, and surrounding connections during installation. Use the Volvo Penta-specified steering fluid and follow the workshop procedure for filling and bleeding the hydraulic system. Do not introduce dirt, water, or incompatible fluid.
Related components in the same steering assembly:
- 1359625 — Reservoir Cover (sold separately)
- 1359649 — Power Steering Pump
- 889428 — Hydraulic Hose
- 3808486 — Hydraulic Hose
- 941995 — Hose
- 961664 — Hose Clamp
- 961666 — Hose Clamp
- 3584243 — Steering System Cooler
- 949918 — Shut-Off Cock
- 856768 — Mounting Bracket
View the Volvo Penta steering schematic to confirm diagram position and adjacent components.
Parts Desk Insight
A new reservoir won’t fix a steering system that’s losing fluid from somewhere else. Before refilling after a reservoir replacement, wipe the area clean and walk the full hydraulic circuit — hoses, pump seals, and cooler connections are the most common sources of slow leaks on D4 and D6 installations. Addressing the root cause during the same service saves another fluid loss and another diagnostic later.
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.