# 20715491 Hose Nipple | Genuine Volvo Penta Part

## 🔧 Product Description

Threaded hose nipple used at a Volvo Penta cooling-system connection, commonly within the water-pump or thermostat-housing circuit. It provides the original hose diameter, thread and sealing geometry for a secure coolant connection.

## ⚙️ Key Features

-   OEM thread and hose-tail dimensions
-   Maintains the original coolant-hose routing and flow area
-   Designed for hot coolant, pressure cycling and engine vibration
-   Works with the specified hose clamp and thread seal arrangement
-   Direct replacement for a corroded, cracked or damaged nipple
-   Engine type: Volvo Penta liquid-cooled marine or industrial diesel

## 🔌 Function

Provides a sealed transition from a threaded cooling-system port to a flexible coolant hose without restricting the designed coolant flow.

## ⚠️ Common Signs of Failure

-   Coolant seepage at the thread or hose connection
-   Corrosion, pitting or cracking of the nipple body
-   Hose loosening because the hose-tail surface is worn or damaged
-   Restricted coolant flow from scale or internal obstruction
-   Coolant loss followed by rising engine temperature

## 🛠️ Service Notes

-   Fit a new sealing washer or ring whenever the nipple is disturbed, and check that the seat in the housing is clean and undamaged
-   Take care in aluminium and light-alloy housings — the thread in the casting is weaker than the nipple, so tighten to the figure in the workshop manual for your engine rather than going by feel
-   Check that the bore is clear before fitting; these are small-bore fittings and are easily blocked by scale, sealant or debris
-   Hold the nipple with a spanner while tightening or slackening the hose union on it, so the load is not carried by the casting
-   Support the hose so it leaves the nipple without side load or a tight bend, and re-check the joint for weeping after the engine has been run and allowed to cool

## 📦 Condition

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

## Details

- **Price:** 24.19 AUD
- **Vendor:** Volvo Penta
- **Type:** Hoses & Pipes
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 24.19 AUD | In stock |

## Images

- 20715491 Hose Nipple | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20715491-hose-nipple-genuine-volvo-penta)
> Updated: 2026-10-06