# 21399023 Hose | Genuine Volvo Penta Part

## 🔧 Product Description

Formed seawater hose used in the hydraulic/power-steering oil-cooler circuit on specified Volvo Penta V6 and V8 gasoline engines. It connects the cooler into the engine raw-water plumbing with the correct bore, bend radius and length so water flow is maintained without kinking or contact with adjacent components.

## 🚤 Compatibility

-   **Engine Family:** V
-   **HP Range:** 200-320 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   Genuine Volvo Penta formed cooling-water hose
-   Used with hydraulic oil cooler 21399019
-   Correct moulded bends for the gasoline-engine seawater circuit
-   Designed for raw-water temperature, suction and pressure conditions
-   Model-specific routing prevents kinking and abrasion
-   Engine type: Volvo Penta gasoline V6/V8 marine engine with seawater-cooled hydraulic system

## 🔌 Function

Carries seawater to or from the hydraulic oil cooler so heat can be removed from the steering fluid before the water continues through the engine cooling circuit.

## ⚠️ Common Signs of Failure

-   Water seepage, salt deposits or soft spots in the hose
-   Cracking, swelling or delamination near the clamps
-   Kinking or internal collapse restricting cooler water flow
-   Abrasion from incorrect routing or missing supports
-   Hydraulic-fluid overheating caused by reduced seawater circulation

## 🛠️ Service Notes

-   Fit hoses only to clean, sound spigots — take off old rubber, scale and corrosion, and renew the spigot or pipe if it is pitted, because no clamp will seal a rough sealing face
-   Push the hose fully home so the clamp sits behind the bead or barb rather than over the end of the spigot, and fit new clamps whenever a hose is renewed
-   Let the hose follow its natural bend with no kinks and no tension on either connection, clear of hot surfaces and moving parts, with chafe protection wherever it passes a bracket, edge or bulkhead
-   Use the correct grade of hose for the duty, and clamp to the standard the installation demands — twin clamps are normal practice on seawater and fuel connections below the waterline
-   Refill, vent and run the engine, then check every joint hot and cold and recheck the clamps after the first running period as the hose beds down

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   21399019 - associated hydraulic / power-steering oil cooler

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta 5.7GXi-320-R, 5.7GXiE-320-R, 5.7GXiC-320-R, 5.7GXiCE-320-R, 5.7GXiC-P, 5.7GXiCE-P, 5.7GXiE-P, 5.7GXi-P, 5.7GiE-300-P, 5.7Gi-300-P, 5.7Gi-300-R, 5.7GiE-300-R, 5.7GiC-300-P, 5.7GiCE-300-P, 5.7GiC-300-R, 5.7GiCE-300-R, 5.0GiC-225-S, 5.0GiCE-225-S, 5.0GXiC-P, 5.0GXiCE-P, 5.0GXi-270-R, 5.0GXiE-270-R, 5.0GXiC-270-R, 5.0GXiCE-270-R, 5.0GXiE-P, 5.0GXi-P, 4.3Gi-200-R, 4.3GL-P, 4.3GXi-225-R, 4.3GXiE-225-R, 4.3GXi-P, 4.3GXiE-P, 4.3GXi-Q, 4.3GXiE-Q
-   Volvo Penta V8-270-C-B, V8-270-CE-B, V8-300-A, V8-300-E-A, V8-300-B, V8-300-E-B, V8-300-C-A, V8-300-CE-A, V8-300-C-B, V8-320-C-B, V8-320-CE-B, V8-300-CE-B, V8-320-A, V8-320-E-A, V8-320-B, V8-320-E-B, V8-320-C-A, V8-320-CE-A, V8-225-C-A, V8-225-CE-A, V8-225-C-B, V8-225-CE-B, V8-270-A, V8-270-E-A, V8-270-B, V8-270-E-B, V8-270-C-A, V8-270-CE-A
-   Volvo Penta V6-200-A, V6-225-A, V6-225-E-A

## Details

- **Price:** 10.64 AUD
- **Vendor:** Volvo Penta
- **Type:** Hoses & Pipes
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 10.64 AUD | In stock |

## Images

- 21399023 Hose | Genuine Volvo Penta Part
- 21399023 Hose | Genuine Volvo Penta Part - photo 2 of 2

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21399023-hose-genuine-volvo-penta)
> Updated: 2026-10-15