# 20511322 Washer | Genuine Volvo Penta Part

## 🔧 Product Description

This genuine Volvo Penta washer is an OEM service component used in the Breather / Inlet Assembly Washer. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo Penta 4-litre TAD4 industrial diesel application. Technical identification: Sealing/support washer used at the crankcase-breather pipe connection. In service, it distributes fastener load, controls spacing or provides the specified locking/sealing interface at the joint. Selection must be confirmed by OEM part number 20511322, the exact model/product number, serial number and installed assembly configuration.

## ⚙️ Key Features

-   OEM part number 20511322
-   Technical distinction: Sealing/support washer used at the crankcase-breather pipe connection

## 🔌 Function

Distributes fastener load, controls spacing or provides the specified locking/sealing interface at the joint. Confirm dimensions, thread and strength class, inspect mating threads/contact faces and tighten to the Volvo Penta torque and locking specification.

## ⚠️ Common Signs of Failure

-   Oil mist or weeping at the crankcase-breather pipe connection
-   The joint fastener found loose at service
-   Oily residue collecting below the breather pipe
-   On removal, the washer flattened, cracked or with its sealing face bedded through

## 🛠️ Service Notes

-   Check you are fitting the same type of washer that came out — plain, hardened, sealing and locking washers are not interchangeable, and the wrong one either fails to seal or fails to hold
-   Treat sealing washers on fuel, oil and coolant unions as single-use; they seal by deforming onto the faces, so a used one will not seal reliably a second time
-   Clean the seating faces and make sure the washer sits flat and square, fully under the head or nut, before tightening — a washer trapped on a chamfer or edge will crush unevenly
-   Tighten the fastener to the figure given in the workshop manual for your engine, and account for every washer on reassembly so none is left loose inside a housing or the engine bay

## 📦 Condition

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

## Details

- **Price:** 8.83 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 8.83 AUD | In stock |

## Images

- 20511322 Washer | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20511322-washer-genuine-volvo-penta)
> Updated: 2026-08-22