# 1607503 Drain Valve Automatic | Genuine Volvo Penta Part

## 🔧 Product Description

An automatic drain valve used in Volvo compressed-air systems to discharge accumulated water and oil condensate from an air reservoir without requiring routine manual opening.

## ⚙️ Key Features

-   Automatic condensate discharge
-   Designed for heavy-duty compressed-air reservoirs
-   Reduces internal tank corrosion and moisture carry-over
-   Engine-output independent pneumatic component
-   Direct replacement after confirming port and reservoir arrangement

## 🔌 Function

The valve opens automatically under the designed operating cycle to expel condensed water and oil from the bottom of the air tank.

## ⚠️ Common Signs of Failure

-   Water remains in the air reservoir
-   Valve leaks air continuously
-   Valve does not discharge during its normal cycle
-   Corrosion or contamination blocks the outlet
-   Air pressure builds slowly because of valve leakage

## 🛠️ Service Notes

-   Confirm you are ordering the current 1607503 rather than the superseded 1577953 reference before fitting
-   Check the valve's port size and thread match the reservoir before installation, since automatic drain valves come in different port arrangements
-   After fitting, run the compressor up to working pressure and check the valve cycles and discharges cleanly rather than leaking continuously
-   Check the reservoir outlet is clear of scale or debris before fitting the new valve, since contamination carried over from the old one can block the replacement immediately

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   1607503 → Supersedes 1577953

### OEM / Related Numbers

-   1577953 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 242.78 AUD
- **Vendor:** Volvo Penta
- **Type:** Brakes & Axle
- **Tags:** Volvo Penta Parts | Genuine Marine Engine & Service Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 242.78 AUD | In stock |

## Images

- 1607503 Drain Valve Automatic | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/1607503-drain-valve-automatic-genuine-volvo-penta)
> Updated: 2026-10-11