# 857133 O-Ring | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta O-ring from the Fuel System group, weighing 0.005 kg and listed for 23 applications across the DP, SP and MS ranges. O-ring 857134 in this run carries exactly the same 23 applications at 0.007 kg. Two grams is nowhere near enough to separate two O-rings, and no section or diameter is published for either, so order strictly by part number.

## 🚤 Compatibility

-   **Engine Family:** DP, SP, MS

Full model list at the end of this description.

## ⚙️ Key Features

-   Fuel System O-ring
-   0.005 kg
-   23 applications across DP, SP and MS
-   Shares its fitment with O-ring 857134 - order by part number

## 🔌 Function

Seals a joint by compressing into its groove, holding fuel-tight against pressure and movement.

## ⚠️ Common Signs of Failure

-   Fuel weeping or seeping at the joint
-   Petrol or diesel smell around the assembly
-   O-ring found flattened, nicked or hardened on strip-down
-   Air drawn into the fuel side, causing hard starting or hunting
-   Groove or spigot scored where the ring seats

## 🛠️ Service Notes

-   O-ring 857134 shares the same 23 applications - the published weights do not separate the two, so order by number
-   Check the groove and spigot for scoring before fitting; a scored seat will leak past a new ring
-   Fuel leaks in a closed engine bay are a fire risk - check for weeping under pressure before running

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta 740B, 501B, 570A, 572A, 430A, 430B, 431A, 431B, 432A, 434A, 570, 500B, 430
-   Volvo Penta DP-C, DP-C1, DP-D, DP-D1, DP-A, DP-A2
-   Volvo Penta SP-C, SP-A2, SP-C1
-   Volvo Penta MS4B

## Details

- **Price:** 20.43 AUD
- **Vendor:** Volvo Penta
- **Type:** Gaskets & Seals
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 20.43 AUD | In stock |

## Images

- 857133 O-Ring | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/857133-o-ring-genuine-volvo-penta)
> Updated: 2026-09-21