21146768 Heat Exchanger | Genuine Volvo Penta Part

🔧 Product Description

Brand-new genuine Volvo Penta engine heat exchanger for D11A marine installations. The assembly transfers heat from the closed fresh-water coolant circuit to raw seawater while keeping the two fluids physically separated. It is a serviceable build, using a replaceable exchanger element with end covers, O-rings and a sacrificial anode, and weighs 26 kg complete.

🚤 Compatibility

Typically suits:

• Volvo Penta D11A-A
• Volvo Penta D11A-B
• Volvo Penta D11A-C
• Volvo Penta D11A-E
• Volvo Penta D11A-C MP
• Volvo Penta D11A-D MP

• Engine Family: D

⚙️ Key Features

• D11A marine coolant-to-seawater heat exchanger
• 26 kg complete
• Replaceable exchanger element with end covers, O-rings and a sacrificial anode
• Original end-cover, port and mounting geometry
• Sized for continuous marine propulsion load
• Heat exchanger assembly; hoses and external seals are separate unless supplied
• Engine type: Volvo Penta D11 inline six-cylinder marine diesel

🔌 Function

Removes heat from engine coolant by transferring it into the raw-water circuit without mixing the fluids.

⚠️ Common Signs of Failure

• Engine coolant temperature climbing under sustained load
• Salt or scale restriction inside the tube stack
• Coolant and seawater cross-contamination
• Corrosion around tubes, covers or sealing faces

🛠️ Service Notes

• Charge-air cooler 21449588 covers the same D11A engines, so confirm which cooler the fault actually sits in before ordering
• Renew the sacrificial anode and the end-cover O-rings whenever the exchanger is opened

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21146768 → Supersedes 3595183 → Supersedes 3886160

OEM / Related Numbers

• 3595183 earlier number superseded by this part
• 3886160 earlier number superseded by this part

Other-Brand OEM Numbers

• VOE21146768

📦 Condition

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