# 21485410 Flexible Coupling | Genuine Volvo Penta Part

## 🔧 Product Description

A torsionally flexible coupling installed between the engine flywheel and marine transmission on Volvo Penta D3-G inboard propulsion packages.

## 🚤 Compatibility

-   **Engine Family:** D
-   **HP Range:** 110-220 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   Absorbs driveline torsional vibration
-   Bolts to the designated flywheel
-   Maintains engine-to-transmission alignment
-   Reduces shock loading
-   Designed for the D3 flywheel and bellhousing arrangement
-   Also supersedes Volvo part numbers 3819449, 3848851 and 3883232

## 🔌 Function

The coupling transfers engine torque to the transmission while damping combustion pulses and driveline shock.

## ⚠️ Common Signs of Failure

-   Rattling at idle
-   Rubber or flexible element cracking
-   Excessive rotational play
-   Metallic debris around the bellhousing
-   Loss of drive after coupling failure

## 🛠️ Service Notes

-   Check and set the alignment of the engine and drive before and after fitting a flexible coupling — it absorbs vibration and a small amount of misalignment, it does not correct a driveline that is out of line
-   Handle the rubber elements carefully and keep them clear of oil, fuel and solvents, which soften and swell rubber and shorten its life dramatically
-   Fit the coupling as a complete unit, use new locking hardware wherever the workshop manual for your engine specifies it, and tighten the fasteners to the figures in that manual
-   Turn the driveline over by hand after assembly and check that it runs true, with no binding and no excessive free play
-   Inspect the coupling whenever the drive is separated for any other reason; the rubber is the part that ages, and planned replacement is far cheaper than a failure at sea

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21485410 → Supersedes 21321662

### OEM / Related Numbers

-   21416069 earlier number superseded by this part
-   21517500 - Related flywheel
-   21517489 - Related ring gear

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D3-110I-C, D3-130I-C, D3-220I-G, D3-140I-F, D3-140I-G, D3-110I-F, D3-150I-F, D3-170I-F, D3-200I-F, D3-220I-F, D3-110I-G, D3-150I-G, D3-170I-G, D3-200I-G, D3-110I-H, D3-160I-C, D3-190I-C, D3-150I-H, D3-170I-H, D3-200I-H, D3-220I-H, D3-140I-H

## Details

- **Price:** 1671.44 AUD
- **Vendor:** Volvo Penta
- **Type:** Clutch & Couplings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1671.44 AUD | In stock |

## Images

- 21485410 Flexible Coupling | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21485410-flexible-coupling-genuine-volvo-penta)
> Updated: 2026-10-08