21266485 Radiator | Genuine Volvo Penta Part

🔧 Product Description

Genuine engine radiator used in an early Volvo Penta TD520 industrial cooling package. The radiator is associated with the TD520GE/TD520VE fan-shroud family and must be matched to the engine specification, hose connections, fan position and ambient-temperature package.

⚙️ Key Features

• Heavy-duty engine coolant radiator
• Associated with TD520GE and TD520VE cooling packages
• Factory coolant connections and mounting points
• Designed to work with the matched fan shroud and guard
• Cooling-package and serial-number verification required

🔌 Function

The radiator transfers heat from engine coolant to ambient air drawn through the core by the engine fan.

⚠️ Common Signs of Failure

• Blocked or damaged fins
• Cold spots indicating internal restriction
• Corroded tanks or core
• Pressure loss or coolant contamination

🛠️ Service Notes

• Flush the system before fitting a new radiator; scale and debris carried over from the old one will lodge in the new core and undo the job
• Fill with Volvo Penta coolant mixed to the concentration specified for your engine, mixed in a clean container beforehand rather than adding concentrate and water separately into the system
• Fill slowly and vent properly — open any bleed nipples shortly after starting, run up to temperature, let it cool and top up; expect to repeat this over the first few heat cycles as trapped air works its way out
• Fit the pressure cap specified for the system and renew it if the seal has hardened or the cap is corroded, or the system will not hold its designed pressure; never open a cap while hot
• Mount on its own rubbers or isolators with the fixings free of strain, and while access is good renew any hose that has gone hard or spongy and check clips and fan clearance

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21266485 → Supersedes 20405670

OEM / Related Numbers

• 20405670 earlier number superseded by this part
• 21266503 - Related fan shroud
• Fan guards, brackets, hoses and expansion-tank components are selected from the serial-specific TD520 cooling diagram

📦 Condition

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