# 21246336 Lock Ring | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine retaining ring used in the mechanical governor and fuel-regulation assembly of Volvo Penta compact diesel engines. It secures the designated control component on its shaft or linkage and prevents unwanted axial movement.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D2-40F
-   Volvo Penta D2-55F
-   Volvo Penta D2-50F
-   Volvo Penta D2-75F
-   Volvo Penta D2-60F
-   Volvo Penta D1-30F
-   Volvo Penta D1-13F
-   Volvo Penta D1-20F

-   **Engine Family:** D
-   **HP Range:** 13-75 HP

## ⚙️ Key Features

-   Genuine Volvo Penta retaining ring
-   Used in governor and fuel-control assemblies
-   Maintains correct linkage positioning
-   Precision profile for the designated groove
-   Replace whenever distorted or weakened during removal

## 🔌 Function

The ring locks a governor or fuel-control component into its designed position, allowing the linkage to operate without excessive end movement.

## ⚠️ Common Signs of Failure

-   Ring stretched during removal
-   Bent or distorted ends
-   Excessive movement in the retained component
-   Ring working out of its groove
-   Irregular governor or throttle movement after incorrect assembly

## 🛠️ Service Notes

-   Always fit a new lock ring rather than reusing one; once it has been spread to fit it has lost some of its grip
-   Use the correct tool and open the ring only as far as it needs to go — a ring that has been over-spread or nipped in a vice will not hold
-   Check that the groove is clean and undamaged and that the ring is seated fully round its whole circumference before the assembly is loaded
-   Fit the ring the right way round where one face is chamfered or dished, with the square-cornered face against the load
-   Reject any ring showing a twist, a bright rubbed patch or a nick, and never grind or file one to fit

## 📦 Condition

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

## Details

- **Price:** 4.55 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 4.55 AUD | In stock |

## Images

- 21246336 Lock Ring | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21246336-lock-ring-genuine-volvo-penta)
> Updated: 2026-09-06