# 1542197 Spherical Washer | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta spherical washer (part number 1542197), a fuel system component used on the MD, TMD, TAMD, TD, AQD and AQAD 30- and 40-series marine diesel engines. Its curved seating face allows a fastener to sit square against a joint even where there is slight angular misalignment, helping maintain even clamping load on fuel system connections. Supplied as a single washer.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta MD40A
-   Volvo Penta TMD40A
-   Volvo Penta TMD40B
-   Volvo Penta TMD40C
-   Volvo Penta AQAD40B
-   Volvo Penta AQAD30A
-   Volvo Penta MD30A
-   Volvo Penta TAMD30A
-   Volvo Penta TD30A
-   Volvo Penta TMD30A
-   Volvo Penta AQAD40A
-   Volvo Penta AQD40A
-   Volvo Penta TD40A
-   Volvo Penta TAMD40A
-   Volvo Penta TAMD40B

-   **Engine Family:** MD, TMD, AQAD, TAMD, TD, AQD
-   **HP Range:** Approximately 100-165 HP
-   **Year Range:** Approximately 1970s - 1980s

## ⚙️ Key Features

-   OEM Volvo Penta part number 1542197
-   System group: Fuel System
-   Net weight approximately 0.0023 kg
-   Spherical (self-aligning) seating face for angular misalignment
-   Fits Volvo Penta 30- and 40-series marine diesel engines including MD, TMD, TAMD, TD, AQD and AQAD variants
-   Supplied as an individual washer
-   Engine type: Volvo Penta inline 6-cylinder mechanically injected marine diesel
-   Quantity varies by assembly, most commonly six

## 🔌 Function

The spherical washer sits between a fastener and its mating surface, using its curved profile to self-align and distribute clamping force evenly even when the joint is not perfectly square. This helps keep fuel system connections correctly seated and leak-free under vibration and thermal movement.

## ⚠️ Common Signs of Failure

-   Fuel weeping or seepage at the joint the washer seats against
-   Visible flattening, cracking or deformation of the curved seating face
-   Corrosion, pitting or scale build-up on the washer surfaces
-   Fasteners losing torque or working loose in service
-   Scoring or galling on the mating surface indicating the washer is no longer self-aligning correctly

## 🛠️ Service Notes

-   Its curved face is what lets it self-align, so fit it the correct way round — seated backwards it loses the self-aligning action and behaves like a flat washer under a joint that is already slightly out of square.
-   With around six used per engine on the fuel system, check the full count needed for your engine's injector and fuel-line joints before starting, rather than assuming one washer per fastener you can see.

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   1542167 related injector leak-off pipe
-   1542155 related injector assemblies
-   3803239 related injector assemblies

## 📦 Condition

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

## Details

- **Price:** 4.74 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta Parts | Genuine Marine Engine & Service Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 4.74 AUD | In stock |

## Images

- 1542197 Spherical Washer | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/1542197-spherical-washer-genuine-volvo-penta)
> Updated: 2026-10-09