# 21579167 Snap Ring | Genuine Volvo Penta Part

## 🔧 Product Description

Hardened retaining ring used at the shaft or pulley location in the D13 belt-driven seawater pump assembly.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D13B-E MG
-   Volvo Penta D13B-E MG (FE)
-   Volvo Penta D13B-E MH
-   Volvo Penta D13B-E MH (FE)
-   Volvo Penta D13B-F MG
-   Volvo Penta D13B-F MG (FE)
-   Volvo Penta D13B-N MH
-   Volvo Penta D13B-N MH (FE)
-   Volvo Penta D13C1-A MH
-   Volvo Penta D13C2-A MH
-   Volvo Penta D13C1-B MG
-   Volvo Penta D13C3-B MG
-   Volvo Penta D13C2-A MG
-   Volvo Penta D13C1-A MG
-   Volvo Penta D13C3-B MH
-   Volvo Penta D13C1-B MH

-   **Engine Family:** D

## ⚙️ Key Features

-   Correct shaft-groove diameter
-   Retains pulley/shaft components axially
-   Works with pulley 21579159
-   Part of pump 21347696
-   Replace if stretched or damaged
-   Engine type: 12.8-litre inline-six turbocharged marine diesel

## 🔌 Function

Retains the shaft or pulley component in position and prevents axial displacement.

## ⚠️ Common Signs of Failure

-   Pulley wobble or run-out
-   Belt squeal, dust or rapid wear
-   Damaged grooves or hub
-   Loose shaft fit
-   Reduced seawater flow caused by pulley slip

## 🛠️ Service Notes

-   Always fit a new snap ring rather than reusing the one you removed — a ring that has been sprung open once has lost tension
-   Use proper snap-ring pliers and open the ring no further than it needs to go; overstretching it, or levering it in with a screwdriver, leaves it slack in the groove
-   Clean the groove and check it for wear, burrs or spread before fitting, and make sure the ring snaps fully home right the way round — check it by eye, turning the assembly, not just by feel
-   Where the ring has a chamfered or dished face, fit it the right way up with the sharp edge against the load
-   Account for the old ring and any fragments; a piece of broken circlip left inside a gearcase or housing will do serious damage

## 🔄 Supersession & Cross Reference

### Other-Brand OEM Numbers

-   VOE21579167

### Aftermarket / Verified Equivalents

-   Seawater pump: 21347696
-   Repair kit: 21911061

## 📦 Condition

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

## Details

- **Price:** 100.91 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 100.91 AUD | In stock |

## Images

- 21579167 Snap Ring | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21579167-snap-ring-genuine-volvo-penta)
> Updated: 2026-10-08