# 20405536 Sealing Ring | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta sealing ring used in pairs around the inlet-manifold or charge-air transfer tube. It seals the tube to the adjoining manifold or housing on TD520 and related D5 / D7 engines.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D5A-B TA
-   Volvo Penta D5A-T
-   Volvo Penta D5A-TA
-   Volvo Penta TD420VE
-   Volvo Penta TD520GE
-   Volvo Penta TD520VE
-   Volvo Penta TAD520GE
-   Volvo Penta TAD520VE
-   Volvo Penta TAD532GE EDC4
-   Volvo Penta MD2010
-   Volvo Penta MD2010B

-   **Engine Family:** D, TD, TAD, MD

## ⚙️ Key Features

-   Pair-type sealing ring for an inlet or charge-air transfer tube
-   Used around tube 20405616 on the TD520GE arrangement
-   Suitable for boosted-air temperature and oil mist
-   Maintains a pressure-tight intake path
-   Should be replaced in matched pairs when the tube is removed
-   Engine type: Volvo Penta 5- and 7-litre turbocharged industrial diesel
-   Quantity varies by assembly, most commonly one

## 🔌 Function

Seals the transfer tube at both ends to prevent boost loss and unfiltered-air entry.

## ⚠️ Common Signs of Failure

-   Boost leak or whistling
-   Oil mist at a tube joint
-   Dust tracks downstream of the air filter
-   Seal hardening, splitting or displacement

## 🛠️ Service Notes

-   Always fit a new sealing ring rather than reusing the old one — a ring that has been compressed once has taken a set and will not seal reliably a second time
-   Clean the groove or seat and check it for scoring, corrosion and old sealant before fitting; a mark across the sealing face will leak however good the ring is
-   Ease the ring into place without stretching, twisting or dragging it over sharp edges or threads, and check it is seated squarely all the way round before closing the joint
-   Do not add sealant or jointing compound unless the workshop manual for your engine calls for it, and tighten the joint or union to the figure given in that manual
-   Check the joint for weeping once the engine has been run up to temperature and allowed to cool, as many sealing rings only show a leak after a heat cycle

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   20405536 → Supersedes 20515574

### OEM / Related Numbers

-   20460334 earlier number superseded by this part
-   20515574 earlier number superseded by this part
-   20405616 - related inlet-manifold tube
-   20405535 - related charge-air adapter O-ring

## 📦 Condition

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

## Details

- **Price:** 39.78 AUD
- **Vendor:** Volvo Penta
- **Type:** Gaskets & Seals
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 39.78 AUD | In stock |

## Images

- 20405536 Sealing Ring | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20405536-sealing-ring-genuine-volvo-penta)
> Updated: 2026-10-15