# 21112812 Adapter Kit | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine Volvo Penta adapter and mounting-hardware kit used on selected HS45A and HS63A marine transmissions. The machined adapter provides the required connection point while the supplied fasteners secure it to the gearbox housing.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta HS63AE-A
-   Volvo Penta HS45A
-   Volvo Penta HS63A

-   **Engine Family:** HS
-   **Year Range:** Approximately 2000s onward

## ⚙️ Key Features

-   Genuine Volvo Penta four-piece adapter kit
-   Replaces ordering adapter 3582175 separately
-   Complete retaining hardware included
-   Used on HS45A and HS63A families
-   All components individually numbered
-   Engine type: Volvo Penta / ZF-Hurth marine reverse gear

## 📋 Kit Contents

-   1 x adapter - Volvo Penta 3582175
-   1 x stud - Volvo Penta 924075
-   1 x spring washer - Volvo Penta 942336
-   1 x hexagon nut - Volvo Penta 971071

## 🔌 Function

The adapter creates the specified threaded or fluid connection on the transmission housing and is retained by the included stud, washer and nut.

## ⚠️ Common Signs of Failure

-   Adapter threads or sealing face are damaged
-   Connection leaks after service
-   Stud or nut is corroded
-   Gearbox option is being converted
-   Original adapter has been removed or lost

## 🛠️ Service Notes

-   Confirm the kit is the correct one for your engine and for the component being adapted before fitting anything, and check the contents are complete
-   Fit all the seals, gaskets and fasteners supplied and do not mix them with old parts; the kit is designed to work as a whole
-   Follow the fitting instructions supplied with the kit together with the workshop manual for your engine for tightening figures and sequence
-   Check clearance and alignment to surrounding pipework, hoses, wiring and moving parts once assembled, then leak or function check before closing up

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21112812 → Supersedes 3582175

### OEM / Related Numbers

-   3582175 earlier number superseded by this part
-   924075 related reference
-   942336 related reference
-   971071 related reference

## 📦 Condition

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

## Details

- **Price:** 1091.06 AUD
- **Vendor:** Volvo Penta
- **Type:** Service & Repair Kits
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1091.06 AUD | In stock |

## Images

- 21112812 Adapter Kit | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21112812-adapter-kit-genuine-volvo-penta)
> Updated: 2026-09-01