# 20525809 Repair Kit | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine Volvo precision shim and sealing gasket used at the water-pump mounting interface on selected D12-family engines. Despite being catalogued in some systems as a repair kit, it is a single service item.

## 🚤 Compatibility

-   **HP Range:** Approximately 500 HP
-   **Year Range:** Approximately 1998-2005

## ⚙️ Key Features

-   Genuine water-pump mounting shim / gasket
-   Single-piece service item
-   Controls pump alignment and seals the mounting face
-   Used on Volvo D12-family truck, bus and industrial engines
-   Cross-referenced by established truck-parts suppliers
-   Engine type: Volvo 12-litre 6-cylinder diesel cooling system

## 📋 Kit Contents

-   1 x water-pump shim / gasket 20525809

## 🔌 Function

Provides the specified spacing and sealing surface between the water pump and engine housing, supporting correct impeller alignment and coolant retention.

## ⚠️ Common Signs of Failure

-   Coolant leakage around the water-pump mounting face
-   Pump alignment or pulley tracking is incorrect
-   Old shim is corroded, distorted or damaged during removal
-   Cooling-system pressure test reveals mounting-face leakage
-   Water pump has been replaced without renewing the mounting gasket

## 🛠️ Service Notes

-   Confirm the kit is the one for your unit before starting, and lay the contents out against the parts you remove so nothing is left in the packet
-   Replace every seal, gasket and wearing part the kit supplies, even where the old one still looks serviceable — mixing old and new sealing parts in one joint is the usual reason a repair leaks again
-   Work clean and cap open pipes and ports; most repair kits serve fuel, oil, cooling or hydraulic components where dirt does the damage
-   Check what the kit does not include — bores, sealing faces, threads and shafts — because a kit cannot compensate for a worn housing
-   Assemble in the order and to the tightening figures given in the workshop manual for your engine, then test for leaks and correct operation before returning the engine to service

## 🔄 Supersession & Cross Reference

### Other-Brand OEM Numbers

-   VOE20525809

### Aftermarket / Verified Equivalents

-   LASO 9820 8015
-   Swedish Truck Parts: V2922
-   PAI: 831107
-   DT Spare Parts: 2.15918
-   SAMPA: 115.A561

## 📦 Condition

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

## Details

- **Price:** 46.79 AUD
- **Vendor:** Volvo Penta
- **Type:** Gaskets & Seals
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 46.79 AUD | In stock |

## Images

- 20525809 Repair Kit | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20525809-repair-kit-genuine-volvo-penta)
> Updated: 2026-08-31