# 958807 Sealing Ring | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta sealing ring published at 0.002 kg and listed for 42 applications across the MD, MB, AQ, BB, B and AQD series. It supersedes 940398, which was catalogued earlier as an O-ring - so an older parts list may point you to the O-ring section for what is now supplied under this number.

## 🚤 Compatibility

-   **Engine Family:** MD, MB, AQ, BB, B, AQD

Full model list at the end of this description.

## ⚙️ Key Features

-   0.002 kg
-   42 applications across six engine series
-   Supersedes 940398
-   940398 was catalogued earlier as an O-ring

## 🔌 Function

Seals a joint by being compressed between the two faces, closing the leak path as the joint is pulled up.

## ⚠️ Common Signs of Failure

-   Weeping or a wet film at the sealed joint
-   Ring flattened, hardened or cracked on removal
-   Ring stuck to one face and torn on strip-down
-   Fluid staining tracking away from the joint

## 🛠️ Service Notes

-   Renew rather than reuse - a ring that has taken a set will not seal again
-   Make sure the old ring has not been left behind on the mating face

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   958807 → Supersedes 940398

### OEM / Related Numbers

-   940398 earlier number superseded by this part

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta AQ130C, AQ130D, AQ130A, AQ130B
-   Volvo Penta AQ170B, AQ170C, AQ170A
-   Volvo Penta BB115A, BB115B, BB115C
-   Volvo Penta BB170B, BB170C, BB170A
-   Volvo Penta MB20A, MB20B, MB20C
-   Volvo Penta MD5A, MD5B, MD5C
-   Volvo Penta AQ115A, AQ115B
-   Volvo Penta MD11C, MD11D
-   Volvo Penta MD17C, MD17D
-   Volvo Penta MD6A, MD6B
-   Volvo Penta MD7B, MD7A
-   Volvo Penta 100S, 110S
-   Volvo Penta AQ165A
-   Volvo Penta AQD2B
-   Volvo Penta AQD21A
-   Volvo Penta B20
-   Volvo Penta BB165A
-   Volvo Penta MB10A
-   Volvo Penta MD1B
-   Volvo Penta MD2B
-   Volvo Penta MD21A
-   Volvo Penta MD3B
-   Volvo Penta MD67C

## Details

- **Price:** 70.77 AUD
- **Vendor:** Volvo Penta
- **Type:** Gaskets & Seals
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 70.77 AUD | In stock |

## Images

- 958807 Sealing Ring | Genuine Volvo Penta Part
- 958807 Sealing Ring | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/958807-sealing-ring-genuine-volvo-penta)
> Updated: 2026-09-21