22004363 Heat Exchanger | Genuine Volvo Penta Part

🔧 Product Description

Freshwater-to-seawater shell-and-tube heat exchanger for later Volvo Penta D3 marine diesels. The tube stack and coolant passages are sized for the five-cylinder D3 cooling load and must remain separated from the raw-water circuit.

🚤 Compatibility

Typically suits:

• Volvo Penta D3-110I-H
• Volvo Penta D3-140A-H
• Volvo Penta D3-170A-H
• Volvo Penta D3-200A-H
• Volvo Penta D3-220A-H
• Volvo Penta D3-150I-H
• Volvo Penta D3-170I-H
• Volvo Penta D3-200I-H
• Volvo Penta D3-220I-H
• Volvo Penta D3-140I-H

• Engine Family: D
• HP Range: 110-220 HP

⚙️ Key Features

• Shell-and-tube construction
• 11.521 kg
• Engine-specific tube stack and coolant passages
• Separates raw water from engine coolant
• Marine corrosion-resistant materials
• Designed for the original end covers, seals and hoses
• Cooling capacity matched to the D3 rating

🔌 Function

Transfers heat from the closed engine-coolant circuit to seawater without allowing the two fluids to mix.

⚠️ Common Signs of Failure

• Coolant loss into seawater or seawater contamination
• Restricted tubes from scale or debris
• Corrosion at end caps or tube sheets
• External leakage at seals or connections

🛠️ Service Notes

• Sized specifically for the five-cylinder D3 cooling load (D3-140 to D3-220 range) — Volvo Penta heat exchangers sharing the same general design vary substantially in capacity and weight across engine families, so match by the D3 engine suffix rather than by external size or family name
• At over 11 kg, support the exchanger while disconnecting the end covers and hoses

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 22004363 → Supersedes 21456343 → Supersedes 21386369 → Supersedes 21157647

OEM / Related Numbers

• 21456343 earlier number superseded by this part
• 21386369 earlier number superseded by this part
• 21157647 earlier number superseded by this part
• 21108863 - earlier heat-exchanger reference
• NSN reference 4420-01-643-7518 associated with the D3 heat-exchanger modification/service configuration

📦 Condition

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