# 949722 O-Ring | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta O-ring weighing 0.002 kg and listed for 33 applications on TWD and D series engines. It supersedes 1543963 and 3588436, one of which earlier appeared in the catalogue as a gasket kit rather than a single ring.

## 🚤 Compatibility

-   **Engine Family:** TWD, D
-   **HP Range:** 145-480 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   0.002 kg
-   33 applications on TWD and D series engines
-   Supersedes 1543963 and 3588436

## 🔌 Function

Seals a static or slow-moving joint by being squeezed into its groove, the rubber flowing against both faces to close the gap.

## ⚠️ Common Signs of Failure

-   Seeping or dripping at the joint after a period standing
-   Ring flattened, nicked or torn when it comes out
-   Rubber gone hard, glazed or chalky to the touch
-   Pressure lost from the circuit the ring seals

## 🛠️ Service Notes

-   One of the numbers this replaces was a gasket kit, so if you ordered that number in the past expect a single ring now and check what else the joint needs

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   949722 → Supersedes 1543963

### OEM / Related Numbers

-   3588436 earlier number superseded by this part
-   925066 referenced in the part notes

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-300A-G, D6-340A-G, D6-380A-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-400A-G, D6-440A-G, D6-300I-G, D6-480A-G
-   Volvo Penta D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-150A-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-300A-G, D4-145I-G
-   Volvo Penta TWD1643GE
-   Volvo Penta TWD1652GE
-   Volvo Penta TWD1653GE
-   Volvo Penta TWD1663GE

## Details

- **Price:** 7.15 AUD
- **Vendor:** Volvo Penta
- **Type:** Gaskets & Seals
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 7.15 AUD | In stock |

## Images

- 949722 O-Ring | Genuine Volvo Penta Part
- 949722 O-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/949722-o-ring-genuine-volvo-penta)
> Updated: 2026-09-19