21381032 Water Pipe | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Water Pipe - Part Number: 21381032

A rigid engine-coolant pipe used in the cooling-water-pump and thermostat-housing circuit on selected Volvo Penta D13 marine engines, including keel-cooled installations. It provides the correctly formed coolant passage between fixed cooling-system components.

⚙️ Key Features

• Genuine Volvo Penta formed coolant pipe

• Used in D13 cooling-water-pump and thermostat-housing installations

• Catalogued for engines equipped with KC keel cooling

• Correct flange position, pipe shape and mounting geometry

• Helps maintain reliable coolant circulation and pressure integrity

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21381032 (Volvo Penta catalog reference)

OEM / Related Numbers:

• 21468471 - related pump unit

• 22195450 - related pump unit

• 20464402 - related plastic plug

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D13 marine diesel cooling systems

• Keel-cooled D13 installations

Typically suits:

• Engine models:

• D13B-E MH

• D13B-E MH (FE)

• D13B-N MH

• D13B-N MH (FE)

• D13C1-A MH

• D13C2-A MH

• HP Range: Engine-rating dependent

• Engine Type: D13 inline-six turbocharged marine diesel

• Year Range: Model- and serial-number dependent

🔌 Function

Routes engine coolant through the cooling-water-pump and thermostat-housing section of the closed freshwater cooling circuit.

Common signs of failure:

• Coolant seepage at the pipe or flange joints

• Corrosion, pitting or wall thinning

• White, green or dried coolant residue

• Progressive coolant loss

• Engine overheating caused by leakage or restricted flow

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging