21227337 Hose | Genuine Volvo Penta Part

🔧 Product Description

A moulded coolant hose used in the hot-water outlet and connection circuit on selected Volvo Penta D13 marine engines. It provides a flexible connection between rigid cooling-system components while maintaining the factory routing and clearance.

🚤 Compatibility

• Engine Family: D

Full model list at the end of this description.

⚙️ Key Features

• Correct moulded bends and connection diameters
• Resistant to coolant, heat and vibration
• Suitable for propulsion and generating-set installations
• Direct replacement where part number 21227337 is specified
• Engine type: D13 inline-six turbocharged marine diesel

🔌 Function

Carries engine coolant through the hot-water outlet circuit while accommodating engine vibration and thermal expansion.

⚠️ Common Signs of Failure

• Coolant seepage at the hose ends
• Cracking, swelling or hardening
• Dried coolant staining
• Progressive coolant loss
• Engine overheating or reduced cabin-heater output

🛠️ Service Notes

• Fit hoses only to clean, sound spigots — take off old rubber, scale and corrosion, and renew the spigot or pipe if it is pitted, because no clamp will seal a rough sealing face
• Push the hose fully home so the clamp sits behind the bead or barb rather than over the end of the spigot, and fit new clamps whenever a hose is renewed
• Let the hose follow its natural bend with no kinks and no tension on either connection, clear of hot surfaces and moving parts, with chafe protection wherever it passes a bracket, edge or bulkhead
• Use the correct grade of hose for the duty, and clamp to the standard the installation demands — twin clamps are normal practice on seawater and fuel connections below the waterline
• Refill, vent and run the engine, then check every joint hot and cold and recheck the clamps after the first running period as the hose beds down

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C2-B MP, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-A MP, D13B-C MH, D13B-H MP, D13B-G MP, D13B-L MP, D13B-E MG, D13B-E MG (FE), D13B-E MH, D13B-E MH (FE), D13B-K MP, D13B-N MH, D13B-N MH (FE), D13B-B MP, D13B-D MP, D13B-J MP, D13B-M MP, D13B-C MP, D13C4-B MP, D13C6-A MP, D13C1-A MH, D13C5-B MP, D13C3-B MG, D13C5-A MP, D13C1-A MG, D13C7-B MP, D13C8-B MP, D13C9-A MP