# 859086 Sealing Ring | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta sealing ring, weighing 0.005 kg and listed for 76 applications across the MD, TMD, TAMD, AD, AQAD and D series. It supersedes part number 842586. Gasket 859038 covers the same six families at 75 applications, so check which of the two your parts list calls for.

## 🚤 Compatibility

-   **Engine Family:** MD, TMD, TAMD, AD, AQAD, D, TD, AQD, KAD, KAMD

Full model list at the end of this description.

## ⚙️ Key Features

-   Supersedes 842586
-   0.005 kg
-   76 applications across six engine series
-   MD, TMD, TAMD, AD, AQAD and D coverage
-   2 used per assembly

## 🔌 Function

Seals around a shaft, spigot or fitting, closing the annular gap so fluid cannot pass along it.

## ⚠️ Common Signs of Failure

-   Weeping around a fitting that stays damp however hard it is tightened
-   Ring found flattened, nicked or cut on removal
-   Material gone hard and taken a permanent set in the groove
-   Fitting that has been over-tightened to chase a leak, distorting the seat
-   Staining that reappears within hours of cleaning the area

## 🛠️ Service Notes

-   Renew the ring every time the fitting is disturbed and check the seat face for scoring or a raised burr

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   859086 → Supersedes 842586

### OEM / Related Numbers

-   842586 earlier number superseded by this part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 TAMD31L-A, TAMD31M-A, TAMD31P, TAMD31P-A, TAMD31S, TAMD31A, TAMD31B, TAMD31D
-   Volvo Penta TAMD41B, TAMD41D, TAMD41H-A, TAMD41H-B, TAMD41P-A, TAMD41P, TAMD41A
-   Volvo Penta AD31, AD31B, AD31D-A, AD31L-A, AD31P-A, AD31XD
-   Volvo Penta AD41B, AD41D, AD41L-A, AD41P-A, AD41A, AD41BJ
-   Volvo Penta D41, D41B, D41D, D41L-A
-   Volvo Penta TMD31A, TMD31B, TMD31D, TMD31L-A
-   Volvo Penta TMD41A, TMD41B, TMD41D, TMD41L-A
-   Volvo Penta KAD42A, KAD42B, KAD42P-A
-   Volvo Penta KAD44P, KAD44P-B, KAD44P-C
-   Volvo Penta KAMD42A, KAMD42B, KAMD42P-A
-   Volvo Penta KAMD43P, KAMD43P-A, KAMD43P-B
-   Volvo Penta KAMD44P-B, KAMD44P-C, KAMD44P-A
-   Volvo Penta TMD40A, TMD40B, TMD40C
-   Volvo Penta AQAD40B, AQAD40A
-   Volvo Penta KAD43P-B, KAD43P-A
-   Volvo Penta TAMD40A, TAMD40B
-   Volvo Penta TAMD42WJ-A, TAMD42B
-   Volvo Penta AQAD30A
-   Volvo Penta AQD40A
-   Volvo Penta KAD300-A
-   Volvo Penta KAD32P
-   Volvo Penta KAMD300-A
-   Volvo Penta MD30A
-   Volvo Penta MD31A
-   Volvo Penta MD40A
-   Volvo Penta TAMD30A
-   Volvo Penta TD30A
-   Volvo Penta TMD30A

## Details

- **Price:** 25.2 AUD
- **Vendor:** Volvo Penta
- **Type:** Gaskets & Seals
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 25.20 AUD | In stock |

## Images

- 859086 Sealing Ring | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/859086-sealing-ring-genuine-volvo-penta)
> Updated: 2026-09-21