# 20459035 Washer | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine Volvo Penta washer used in the starter, charging or belt-drive electrical assembly. It is supplied as an individual service component under part number 20459035 and is intended to restore the original fit, alignment, sealing, support or operating function of the specified assembly. This listing supplies the named part only; adjoining components shown in an parts list for your engine are serviced separately unless explicitly stated.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD720VE
-   Volvo Penta TAD721VE
-   Volvo Penta TAD722VE
-   Volvo Penta TAD520VE

-   **Engine Family:** TAD

## ⚙️ Key Features

-   Washer distributing fastener load and protecting the mating surface
-   0.001 kg
-   Listed for 4 TAD series applications
-   Alternator, Charging, Electric Motor, Electric Drives group

## 🔌 Function

Distributes fastener load, protects the mating surface and helps maintain the correct assembled spacing.

## ⚠️ Common Signs of Failure

-   Fastener at that position working loose in service
-   Mating surface marked or dug into where the washer has been missing
-   Washer found dished, cracked or fretted on removal
-   Bright polished wear ring showing the washer has been turning
-   Corrosion pitting on the bearing 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

## 📦 Condition

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

## Details

- **Price:** 8.61 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 8.61 AUD | In stock |

## Images

- 20459035 Washer | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20459035-washer-genuine-volvo-penta)
> Updated: 2026-10-09