# 23075243 Washer | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta washer weighing 0.006 kg, superseding part number 20405816 and covering its applications.

## ⚙️ Key Features

-   Washer
-   0.006 kg
-   Supersedes 20405816 and covers its applications

## 🔌 Function

Spreads a fastener's clamping load over the surface beneath it and gives the head or nut a clean, square bearing face.

## ⚠️ Common Signs of Failure

-   Fastener found loose, with the joint no longer clamped
-   Washer dished, coned or picked up on one face
-   Bright fretting marks on the surface underneath
-   Corrosion between the washer and its mating face

## 🛠️ 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

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   23075243 → Supersedes 20405816

### OEM / Related Numbers

-   20405816 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 3.93 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3.93 AUD | In stock |

## Images

- 23075243 Washer | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/23075243-washer-genuine-volvo-penta)
> Updated: 2026-10-10