# 21448582 Valve Housing | Genuine Volvo Penta Part

## 🔧 Product Description

A complete valve housing used in the turbocharger bypass and pressure-control system on selected Volvo Penta D13 marine engines.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D13B-A MP
-   Volvo Penta D13B-H MP

-   **Engine Family:** D

## ⚙️ Key Features

-   Genuine Volvo Penta turbocharger valve housing
-   Supports the bypass valve and control passages
-   Designed for boost-pressure and engine-oil exposure
-   Precision-machined valve and hose interfaces
-   Used with the original turbocharger control hardware
-   Engine type: D13 inline-six turbocharged marine diesel

## 🔌 Function

Houses and directs the turbocharger bypass valve that regulates charge pressure under changing engine loads.

## ⚠️ Common Signs of Failure

-   Underboost or overboost fault
-   Unstable turbocharger response
-   Air or oil leakage around the housing
-   Bypass valve sticking
-   Excessive exhaust smoke

## 🛠️ Service Notes

-   Note how the housing sits and how its connections run before removal, and keep any shims, springs and internal parts in order for reassembly
-   Clean the mating faces and ports without letting debris into the passages — wipe or blow out rather than scraping into the bore
-   Renew all gaskets, O-rings and sealing washers at the joints, lightly lubricated so they seat without nipping
-   Check that any spool, plunger or valve moves freely through its full travel by hand before the housing is closed up and fitted
-   Tighten fixings and unions evenly to the workshop manual figures for your engine, then check function and leak-check with the system under pressure

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   22298262 - bypass valve
-   21253174 - related tube
-   21424550 - gasket
-   21349349 - oil hose
-   3889668 - pressure hose
-   22316856 - related conversion kit
-   3889670 - oil-return component

## 📦 Condition

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

## Details

- **Price:** 2767.73 AUD
- **Vendor:** Volvo Penta
- **Type:** Turbochargers
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2767.73 AUD | In stock |

## Images

- 21448582 Valve Housing | Genuine Volvo Penta Part
- 21448582 Valve Housing | Genuine Volvo Penta Part - photo 2 of 2

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21448582-valve-housing-genuine-volvo-penta)
> Updated: 2026-10-20