21085355 Cooling Hose | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Cooling Hose - Part Number: 21085355

A genuine Volvo Penta moulded engine-cooling hose used in the D13B-A MP cooling system. The hose is formed to follow the original routing around the D13 cooling and oil-cooler assembly, maintaining the specified bend radius and connection alignment without kinking or contacting adjacent components. It is a distinct hose from companion part 21085358 and must not be selected by visual similarity alone.

⚙️ Key Features

• Moulded OEM hose profile for the D13B-A MP cooling-system layout

• Correct internal diameter and end geometry for the specified pipe connections

• Reinforced construction suitable for hot, pressurised engine coolant

• Preformed routing reduces kinking, chafe and stress at the hose necks

• Application-specific part; confirm the complete engine product number and serial number

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21085355 (current OEM reference)

OEM / Related Numbers:

• 21085355

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

Assembly / Service Components:

• 21085358 - companion cooling hose in the same D13B-A MP cooling arrangement

• 3594798 / 3594799 - associated water pipes, where specified by the diagram

• 21216491 - pipe connection used in the cooling assembly

• 1547255 - sealing ring used at the associated pipe joint

🚤 Compatibility

Commonly used on:

• 13-litre inline-six turbocharged marine diesel

Typically suits:

• Engine models:

• D13B-A MP

• HP Range: Application varies with D13B-A MP rating; confirm by product number and serial number

• Engine Type: 13-litre inline-six turbocharged marine diesel

• Year / Serial Range: Exact hose position and adjoining pipes are controlled by the D13B-A MP product and serial number

🔌 Function

Carries engine coolant through the specified branch of the D13B-A MP cooling circuit. Its moulded shape keeps coolant flow unrestricted while isolating engine movement and vibration from the rigid pipework.

Common signs of failure:

• Coolant seepage at either hose end

• Bulging, softening or heat-hardened rubber

• Surface cracking or reinforcement exposure

• Abrasion caused by incorrect routing or failed retainers

• Coolant loss followed by elevated operating temperature

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging