22850984 Heat Exchanger | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta shell-and-tube heat exchanger from the Cooling System group, weighing 6.285 kg and listed for three D series engine applications. It is the largest of the four exchangers in this group. It supersedes part number 3840130.

🚤 Compatibility

Typically suits:

• Volvo Penta D2-40
• Volvo Penta D2-40B
• Volvo Penta D2-40F

• Engine Family: D
• HP Range: 40 HP

⚙️ Key Features

• Heat exchanger from the Cooling System group
• Shell-and-tube construction
• 6.285 kg
• Listed for three D series engine applications
• The largest of the four exchangers in this group
• Supersedes part number 3840130

🔌 Function

Passes heat from the engine coolant into the raw water drawn through it, holding the engine at working temperature while keeping sea water out of the coolant circuit.

⚠️ Common Signs of Failure

• Overheating under load, or temperature slow to settle afterwards
• Coolant lost with nothing showing outside the engine
• Salt weeping or crusting at the end cap joints
• Stack found scaled, furred or blocked with weed and impeller debris
• Tubes holed, letting the two circuits mix

🛠️ Service Notes

• At 6.285 kg this is the largest of the four exchangers here, but the other three run within about a kilogram of each other - order by part number
• Look at the impeller and strainer whenever a blockage is found, and account for any missing impeller vanes
• Renew the end cap seals and O-rings rather than reusing them

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 22850984 → Supersedes 3840130

OEM / Related Numbers

• 3840130 earlier number superseded by this part

📦 Condition

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