# 855517 Seawater Pump | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta seawater pump from the Cooling System group, weighing 1.036 kg and listed for three applications on AQ series engines.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta AQ171A
-   Volvo Penta AQ171C
-   Volvo Penta 251A

-   **Engine Family:** AQ

## ⚙️ Key Features

-   1.036 kg
-   For AQ series engines
-   Three listed applications
-   Raw water pump

## 🔌 Function

Draws raw water in from outside the boat and pushes it through the cooling system to carry the engine's heat away.

## ⚠️ Common Signs of Failure

-   Little or no water coming out with the exhaust
-   Engine temperature climbing under load
-   Water weeping from the pump body or its telltale drain
-   Impeller found with vanes torn off or taking a set
-   Squealing or rumbling from the pump when running

## 🛠️ Service Notes

-   A second seawater pump, 855578, is listed here at 1.055 kg - only 19 grams apart, so weight is no guide; that one covers 22 applications across AQ, B and BB engines while this one covers three AQ applications
-   If the impeller has shed vanes, find them downstream before running the engine again or they will block the cooler
-   Check the seacock, strainer and hose for a blockage before condemning the pump

## 🔄 Supersession & Cross Reference

### Other-Brand OEM Numbers

-   Johnson Pump: 10-32621-2

### Aftermarket / Verified Equivalents

-   Crom Marine: 115172
-   Orbitrade: 15578

## 📦 Condition

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

## Details

- **Price:** 1514.58 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1514.58 AUD | In stock |

## Images

- 855517 Seawater Pump | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/855517-seawater-pump-genuine-volvo-penta)
> Updated: 2026-08-22