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