# 994041 O-Ring | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta O-ring listed for 21 applications across the TAD, D and TADH engine series. O-ring 993664 covers the same three engine families on 31 applications, so where two O-rings could suit the same area, match the number to the position you are working on rather than picking by appearance.

## 🚤 Compatibility

-   **Engine Family:** TAD, D, TADH

Full model list at the end of this description.

## ⚙️ Key Features

-   Listed for 21 applications
-   Fits TAD, D and TADH series engines
-   Shares its engine families with O-ring 993664

## 🔌 Function

Seals a joint by being compressed into its groove, closing the path between the two components.

## ⚠️ Common Signs of Failure

-   Seepage or a persistent damp film at the joint
-   Ring found flattened, nicked or twisted on removal
-   Rubber gone hard, chalky or swollen
-   Pressure bleeding away slowly with no other fault found

## 🛠️ Service Notes

-   Lubricate the ring and the lead-in chamfer so it does not roll or shear as it goes home
-   Check the groove and bore for scoring before fitting - a scratch across the sealing face will defeat a new ring

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D8A5-A MH, D8A2-A MP, D8A6-A MH
-   Volvo Penta TAD840GE, TAD840-43VE, TAD840GE-B
-   Volvo Penta TAD570-72VE, TAD570-71VE-B
-   Volvo Penta TAD880-82GE, TAD880-84VE
-   Volvo Penta TADH880-82GE, TADH880-84VE
-   Volvo Penta TAD540-42VE
-   Volvo Penta TAD550-51VE
-   Volvo Penta TAD552VE
-   Volvo Penta TAD580-83VE
-   Volvo Penta TAD841-43GE
-   Volvo Penta TAD850-52VE
-   Volvo Penta TAD851-53GE
-   Volvo Penta TAD853VE
-   Volvo Penta TAD870-73VE

## Details

- **Price:** 13.9 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 13.90 AUD | In stock |

## Images

- 994041 O-Ring | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/994041-o-ring-genuine-volvo-penta)
> Updated: 2026-08-22