# 3594405 Draining Nipple | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta draining nipple from the Cooling System group, weighing 0.179 kg and listed for 2 applications on TWD series engines.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TWD1643GE
-   Volvo Penta TWD1663GE

-   **Engine Family:** TWD

## ⚙️ Key Features

-   0.179 kg
-   2 applications on TWD series engines
-   Cooling System group
-   Threaded draining point

## 🔌 Function

Gives a controlled draining point in the cooling circuit so coolant can be let out at a service or before a winter lay-up.

## ⚠️ Common Signs of Failure

-   Seeping or crusted coolant deposits around the nipple
-   Nipple seized so it cannot be opened for draining
-   Thread corroded or stripped in the housing
-   Sealing washer flattened so it will not hold pressure
-   Passage blocked with scale so the circuit will not drain

## 🛠️ Service Notes

-   Renew the sealing washer with the nipple and take care not to overtighten into the housing
-   Refill with the correct coolant mix and bleed the system, then pressure test for leaks

## 📦 Condition

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

## Details

- **Price:** 222.05 AUD
- **Vendor:** Volvo Penta
- **Type:** Hoses & Pipes
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 222.05 AUD | In stock |

## Images

- 3594405 Draining Nipple | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3594405-draining-nipple-genuine-volvo-penta)
> Updated: 2026-09-06