# 1543923 Washer | Genuine Volvo Penta Part

## 🔧 Product Description

This is a genuine Volvo Penta washer from the cooling system group, supplied in the 75 mm length (L=75mm) specification that distinguishes it from other washers sharing the same name. It seats against a cooling system fastener or joint to spread load and maintain a stable, leak-free clamped connection. It fits the TAMD162, TAMD163, TAMD165, TAD1630/1631, TWD1620/1630 and TID162 series engines.

## 🚤 Compatibility

-   **Engine Family:** TWD, TID, TD, TAMD, TAD
-   **HP Range:** Approximately 468-770 HP
-   **Year Range:** Approximately 1987-2005

Full model list at the end of this description.

## ⚙️ Key Features

-   Genuine Volvo Penta OEM part number 1543923
-   Dimension: L=75mm
-   System group: Cooling System
-   Net weight approximately 0.059 kg
-   Fits TWD1620/1630, TID162, TD164, TAMD162, TAMD163, TAMD165 and TAD1630/1631 series engines
-   Engine type: 16.1L inline-six turbocharged/aftercooled diesel

## 🔌 Function

The washer distributes fastener load across the mating surface and helps maintain correct clamping force at a cooling system connection. Correct washer length and thickness are needed to keep the joint tight and prevent coolant leakage.

## ⚠️ Common Signs of Failure

-   Coolant seepage or weeping at the joint the washer seats against
-   Corrosion, pitting or scaling of the washer face
-   Flattening, deformation or cracking from over-torquing or age
-   Loss of clamping force allowing the fastener to loosen in service
-   Visible gap or misalignment between the washer and its mating surface

## 🛠️ 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 / Related Numbers

-   1543891 coolant-pump hub
-   1556330 coolant circulation pump
-   8149980 complete coolant pump
-   1543908 sealing ring
-   276636 circulation-pump overhaul kit

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta TAMD162C-C, TAMD162A, TAMD162B, TAMD162C, TAMD162C-B
-   Volvo Penta TID162AG, TID162AGP, TID162AP, TID162APB
-   Volvo Penta TAD1630G, TAD1630GE, TAD1630P
-   Volvo Penta TAMD165A, TAMD165C, TAMD165P
-   Volvo Penta TWD1630G, TWD1630P, TWD1630V
-   Volvo Penta TAD1631GE, TAD1631G
-   Volvo Penta TAMD163A-A, TAMD163P-A
-   Volvo Penta TD164KAE
-   Volvo Penta TWD1620G

## Details

- **Price:** 83.28 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta Parts | Genuine Marine Engine & Service Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 83.28 AUD | In stock |

## Images

- 1543923 Washer | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/1543923-washer-genuine-volvo-penta)
> Updated: 2026-10-09