# 21121705 Conversion Kit | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine Volvo Penta sterndrive conversion kit used to update a specified engine-to-drive installation to the later approved configuration. The kit is supplied as a matched conversion package and must be selected by the engine, drive and transom-shield serial numbers.

## ⚙️ Key Features

-   Genuine Volvo Penta factory conversion kit
-   Correct part number 21121705
-   Sterndrive installation application
-   Matched components supplied as one package
-   Requires engine and drive serial-number confirmation
-   Engine type: Volvo Penta marine sterndrive installation

## 📋 Kit Contents

-   1 x complete factory conversion package - Volvo Penta 21121705
-   All brackets, fasteners, seals and connection components are supplied under kit number 21121705; Volvo does not separately publish the complete internal breakdown in the public parts listing

## 🔌 Function

The kit changes the required mechanical and connection components so an approved engine and sterndrive combination can be installed in the later factory configuration.

## ⚠️ Common Signs of Failure

-   Repower components do not align with the existing drive
-   Existing installation does not meet the later factory specification
-   Required adapter or connection parts are missing
-   Drive or engine generation is being changed
-   A Volvo Penta conversion instruction specifies kit 21121705

## 🛠️ Service Notes

-   Check the kit contents against its parts list before starting and read the instruction sheet supplied with it through to the end — a conversion is a sequence of steps, not a like-for-like swap
-   Confirm the kit is the one for your engine or drive serial number before any of it is fitted; conversion kits are tied to build ranges rather than to a model name
-   Expect to renew the gaskets, seals and single-use fasteners that the work disturbs, and to have the fluids and consumables for the affected system on hand before you begin
-   Record the conversion against the engine or drive serial number and keep the paperwork with the boat, so later parts ordering and diagnostics reflect what is actually fitted

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   21121706 related D3 generation-C sterndrive conversion kit

## 📦 Condition

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

## Details

- **Price:** 407.84 AUD
- **Vendor:** Volvo Penta
- **Type:** Service & Repair Kits
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 407.84 AUD | In stock |

## Images

- 21121705 Conversion Kit | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21121705-conversion-kit-genuine-volvo-penta)
> Updated: 2026-09-06