# 3863190 Reservoir | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta reservoir from the Steering group, weighing 0.170 kg and listed for 10 applications across the D family. It supersedes part number 3885918. This is a steering system component, so treat any fault with it as safety-related.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D6-300A-G
-   Volvo Penta D6-340A-G
-   Volvo Penta D6-380A-G
-   Volvo Penta D6-400A-G
-   Volvo Penta D6-440A-G
-   Volvo Penta D4-150A-G
-   Volvo Penta D4-230A-G
-   Volvo Penta D4-270A-G
-   Volvo Penta D4-320A-G
-   Volvo Penta D4-300A-G

-   **Engine Family:** D
-   **HP Range:** 150-440 HP

## ⚙️ Key Features

-   0.170 kg
-   10 applications across the D family
-   Supersedes 3885918
-   Steering group component

## 🔌 Function

Holds the steering fluid reserve, allowing for expansion and letting air separate out of the returning fluid.

## ⚠️ Common Signs of Failure

-   Fluid level dropping, with staining around the reservoir
-   Steering going heavy, notchy or noisy as air is drawn in
-   Body cracked or crazed, or the cap seal perished
-   Fluid discoloured, foamy or containing debris
-   Whine from the steering pump under load

## 🛠️ Service Notes

-   Steering is a safety system — bleed the circuit fully and check for free lock-to-lock movement before the boat is used
-   Fill with the fluid specified for the steering system and check the level with the helm centred
-   Flush the circuit if the old fluid was dirty; debris carried over will damage the new components

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   3863190 → Supersedes 3885918

## 📦 Condition

-   Genuine Volvo Penta part
-   Brand new
-   Supplied in original or equivalent packaging

## Details

- **Price:** 298.74 AUD
- **Vendor:** Volvo Penta
- **Type:** Steering
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 298.74 AUD | In stock |

## Images

- 3863190 Reservoir | Genuine Volvo Penta Part
- 3863190 Reservoir | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3863190-reservoir-genuine-volvo-penta)
> Updated: 2026-10-09