# 22389528 O-Ring | Genuine Volvo Penta Part

## 🔧 Product Description

This genuine Volvo Penta supercharger sealing o-ring is used in the following application: Volvo Penta D8A2-A MP supercharger inlet systems. Seals the supercharger-to-pipe connection against compressed-air leakage while allowing the joint to accommodate normal thermal movement.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D8A2-A MP
-   Volvo Penta D8A4-A MP

-   **Engine Family:** D

## ⚙️ Key Features

-   Genuine OEM elastomer compound
-   Correct cross-section and diameter
-   Designed for the intended fluid and temperature
-   Provides controlled compression in the original groove
-   Replace whenever the joint is separated

## 🔌 Function

Seals the supercharger-to-pipe connection against compressed-air leakage while allowing the joint to accommodate normal thermal movement.

## ⚠️ Common Signs of Failure

-   Oil mist or dirt tracks around the sealed joint
-   Hissing under acceleration
-   Reduced boost or power
-   O-ring flattened, cut, hardened or swollen
-   Repeated seal extrusion from misalignment
-   Damaged groove or pipe bead preventing proper compression

## 🛠️ Service Notes

-   Always fit a new O-ring — never refit one that has been removed, as it has already taken a set in its groove
-   Clean the groove and both sealing faces and check them for nicks, scoring and corrosion pitting; a damaged groove will leak however good the new seal is
-   Smear the ring with a little clean lubricant compatible with the fluid it seals, then roll it into place by hand so it sits untwisted and fully in its groove
-   Never lever an O-ring over a sharp edge or thread with a screwdriver; use a blunt plastic tool and protect any edge the ring has to pass
-   Assemble the joint squarely and tighten to the figure and sequence given in the workshop manual for your engine — over-tightening extrudes the ring and causes the very leak you were curing

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   22393844 - associated supercharger
-   78466702 - current associated connecting pipe
-   22384251 - superseded connecting-pipe reference
-   23123550 - associated supercharger clutch kit
-   22796353 - associated O-ring
-   22909943 - associated O-ring
-   21926626 - associated bracket
-   21617483 - associated bracket

## 📦 Condition

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

## Details

- **Price:** 89.76 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 89.76 AUD | In stock |

## Images

- 22389528 O-Ring | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/22389528-o-ring-genuine-volvo-penta)
> Updated: 2026-08-22