22962680 Heat Exchanger | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta coolant to raw-water heat exchanger for D6-400 to D6-480 engines, weighing 38.56 kg and listed for 18 D series applications. The engine range is the selection detail. It supersedes part number 22437234.

🚤 Compatibility

Typically suits:

• Volvo Penta D6-340I-G
• Volvo Penta D6-380I-G
• Volvo Penta D6-440I-G
• Volvo Penta D6-480I-G
• Volvo Penta D6-300A-G
• Volvo Penta D6-340A-G
• Volvo Penta D6-380A-G
• Volvo Penta D6-440I-WJ-G
• Volvo Penta D6-480I-WJ-G
• Volvo Penta D6-300D-G
• Volvo Penta D6-340D-G
• Volvo Penta D6-380D-G
• Volvo Penta D6-440D-G
• Volvo Penta D6-480D-G
• Volvo Penta D6-400A-G
• Volvo Penta D6-440A-G
• Volvo Penta D6-300I-G
• Volvo Penta D6-480A-G

• Engine Family: D
• HP Range: 300-480 HP

⚙️ Key Features

• Heat exchanger for D6-400 to D6-480 engines
• Coolant to raw-water construction
• 38.56 kg
• Listed for 18 D series applications
• Supersedes part number 22437234
• The engine range is the selection detail

🔌 Function

Transfers heat from the engine coolant into the raw seawater flowing through its core, so the coolant returns to the engine at working temperature and the heat goes overboard.

⚠️ Common Signs of Failure

• Engine temperature climbing under load and settling again at low power
• Coolant loss with no external leak, or oil traces showing in the coolant
• Salt crust or weeping at the end covers
• Seawater side blocked with weed, scale or impeller debris
• Tube stack found furred, split or corroded through when drawn

🛠️ Service Notes

• At nearly 39 kg this needs proper support and lifting arranged before removal
• Check the seawater pump impeller, strainer and anodes before condemning the exchanger for a running-hot complaint, as restricted seawater flow looks identical
• Renew the end cover seals and o-rings whenever the core is disturbed

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 22962680 → Supersedes 22437234 → Supersedes 22369742

OEM / Related Numbers

• 22437234 earlier number superseded by this part

📦 Condition

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