20715675 Oil Cooler | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Engine Oil Cooler - Part Number: 20715675

Coolant-to-oil heat exchanger used on the D5A-B TA lubricating system. It removes heat from the engine oil while preserving the original oil-flow and coolant-flow paths through the oil-filter housing assembly.

⚙️ Key Features

• OEM plate/element geometry for the D5A oil-cooling circuit

• Maintains engine-oil temperature under continuous load

• Integrates with the original oil-filter flange and sealing components

• Separates pressurised engine oil from the coolant circuit

• Suitable for replacement of a leaking, restricted or internally corroded cooler

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20715675 (D5A-B TA oil-cooler configuration)

OEM / Related Numbers:

• 3831236 engine oil filter

• 11700609 oil-cooler/filter flange

• 20405569 sealing ring

• 20405578 O-ring

• 20405747 gasket

• 20405744 pressure-control valve where fitted

• 20459195 and 20450891 threaded plugs in applicable housings

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

Assembly / Service Components:

• 3831236 engine oil filter

• 11700609 oil-cooler/filter flange

• 20405569 sealing ring

• 20405578 O-ring

• 20405747 gasket

• 20405744 pressure-control valve where fitted

• 20459195 and 20450891 threaded plugs in applicable housings

🚤 Compatibility

Commonly used on:

• D5A engine lubricating-oil cooling and filter assembly

Typically suits:

• Engine models:

• D5A-B TA

• HP Range: Approximately 100-160 HP, depending on engine rating

• Engine Type: 4.8 L four-cylinder turbocharged marine diesel

• Year Range: Approximately late 1990s-2000s

🔌 Function

Transfers excess heat from pressurised engine oil into the engine coolant, stabilising oil viscosity and protecting bearings, pistons and turbocharger lubrication under load.

Common signs of failure:

• Engine-oil temperature rises above normal under load

• Oil or coolant leakage around the cooler and flange

• Oil contamination in coolant or coolant contamination in engine oil

• Reduced oil pressure caused by internal leakage or restriction

• Internal scale, corrosion or debris restricting heat transfer

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging