21099784 Oil Cooler | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta engine-oil cooler and integrated oil-filter housing service assembly used on TAD620VE, TAD650VE and TAD660VE industrial engines. It is normally supplied as the cast-iron cooler housing rather than the internal core. Engine coolant passes through the cooler body to remove heat from the lubricating oil before the oil is distributed to the bearings, pistons and turbocharger. The housing also incorporates oil-filter and pressure-control passages, so internal cleanliness and correct valve-component installation are critical.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD620VE
• Volvo Penta TAD650VE
• Volvo Penta TAD660VE

• Engine Family: TAD
• Serial Range: SN01099384-

⚙️ Key Features

• Integrated oil-cooler and oil-filter housing assembly
• Cast-iron cooler housing construction
• 2.913 kg
• Coolant-to-oil heat exchanger stabilises lubricant temperature under sustained load
• Internal galleries route filtered oil to the engine lubrication circuit
• Machined bores accommodate the pressure-control valve, plunger, spring and sleeve
• Current service part superseding oil cooler 20914910
• Engine type: Inline-six turbocharged Volvo Penta industrial diesel

🔌 Function

Transfers heat from the engine oil to the coolant and forms the distribution housing for filtered, pressure-regulated lubricating oil. Stable oil temperature preserves viscosity, bearing-film strength and turbocharger lubrication.

⚠️ Common Signs of Failure

• Oil appearing in the coolant or coolant contaminating the engine oil
• External oil or coolant leakage at the cooler housing
• Engine-oil temperature above normal under load
• Low or unstable oil pressure caused by internal valve or gallery faults
• Accelerated bearing or turbocharger wear following oil overheating

🛠️ Service Notes

• This number covers the cast-iron housing, so establish whether the housing or the internal core has failed before ordering

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21099784 → Supersedes 20914910 → Supersedes 20944126 → Supersedes 20509445 → Supersedes 20459206

OEM / Related Numbers

• 20914910 earlier number superseded by this part
• 20944126 earlier number superseded by this part
• 20509445 earlier number superseded by this part
• 20459206 earlier number superseded by this part
• 21100405 - oil-pressure control valve seat
• 20862028 - control plunger
• 21100407 - pressure-control spring
• 21100410 - control sleeve
• 20459203 - housing gaskets
• 20459202 - housing gaskets
• 20459201 - associated nipples
• 20459200 - associated nipples

Other-Brand OEM Numbers

• VOE21099784

Aftermarket / Verified Equivalents

• SRP: OCB-99784
• DT Spare Parts: 2.10385
• SLP: CC-784
• FridayParts: LXFP201018A0001

📦 Condition

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