1664500 Radiator | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta radiator is a engine heat-rejection radiator used in the engine radiator assembly, 0.65 m² cooling surface. It is manufactured to the original Volvo dimensional, material and interface requirements so the serviced assembly retains its designed alignment, sealing, load capacity and operating reliability. Nominal cooling surface: 0.65 m². In service, it rejects engine heat to ambient air by transferring coolant heat through the radiator core and fins. Selection must be confirmed by OEM part number 1664500, the exact engine/product model, serial number and the installed assembly configuration.

🚤 Compatibility

Typically suits:

• Volvo Penta TD121G-87
• Volvo Penta TWD1230ME
• Volvo Penta TWD1231VE
• Volvo Penta TWD1030ME
• Volvo Penta TWD1031VE
• Volvo Penta TD121G
• Volvo Penta TD121GG
• Volvo Penta TD1030VE

• Engine Family: TD, TWD

⚙️ Key Features

• Genuine Volvo Penta OEM part number 1664500
• System group: Cooling System
• Net weight approximately 62.14 kg
• Supersedes earlier part numbers 1544671 and 475701
• Fits TD121, TD1030, TWD1030 and TWD1230 series marine and industrial diesel engines

🔌 Function

The radiator dissipates heat from the engine coolant into passing airflow, completing the closed-circuit cooling loop that keeps combustion and lubrication temperatures within design limits. It works with the thermostat, water pump and fan to regulate engine temperature across varying load conditions.

⚠️ Common Signs of Failure

• Coolant leaks or staining at the core, seams or tank joints
• Persistent engine overheating or slow warm-up recovery under load
• Blocked, bent or corroded fins restricting airflow through the core
• Internal scaling or sediment reducing coolant flow and heat transfer
• Repeated coolant top-ups with no visible external leak elsewhere in the system

🛠️ 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

• 1664500 → Supersedes 1544671 → Supersedes 475701

OEM / Related Numbers

• 1544671 earlier number superseded by this part
• 475701 earlier number superseded by this part

Other-Brand OEM Numbers

• Hella: 8MK 376 724-461
• Valeo: 730601
• Nissens: 65464

Aftermarket / Verified Equivalents

• DT Spare Parts: 2.15344
• Sampa: 032.194
• Auger: 73252
• AVA: VL2003

📦 Condition

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