22850982 Heat Exchanger | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta heat exchanger from the Cooling System group, weighing 5.157 kg and listed for three D series engine applications. It carries the closed-loop coolant's heat into the raw seawater passing through it. It is within 5 grams of exchanger 22850980 - check parts list for your engine rather than comparing by hand. It supersedes 3840129.

🚤 Compatibility

Typically suits:

• Volvo Penta D1-30
• Volvo Penta D1-30B
• Volvo Penta D1-30F

• Engine Family: D
• HP Range: 30 HP

⚙️ Key Features

• Heat exchanger from the Cooling System group
• Closed-loop coolant to raw seawater construction
• 5.157 kg
• Listed for three D series engine applications
• Within 5 grams of exchanger 22850980
• Supersedes 3840129

🔌 Function

Carries engine heat into the raw water flowing through its tube stack, keeping the coolant at working temperature with no mixing between the circuits.

⚠️ Common Signs of Failure

• Engine overheating or running warmer than it used to at the same load
• Coolant disappearing with no external leak to find
• Oily film or salt in the header tank, pointing at a holed stack
• Scale, weed or shed impeller vanes packed into the raw water side
• End cap seals weeping and salt-crusted

🛠️ Service Notes

• Check parts list for your engine rather than comparing by hand - 22850980 is within 5 grams and covers the same three engines
• Check the sea water pump impeller and strainer at the same service; debris from a failed impeller is what blocks these
• Renew the end cap seals and O-rings on reassembly

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 22850982 → Supersedes 3840129

OEM / Related Numbers

• 3840129 earlier number superseded by this part

📦 Condition

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