1675774 Oil Cooler | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta oil cooler is a engine-oil heat exchanger used in the engine lubricating-oil cooler, early production. 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. In service, it transfers heat from engine oil to the coolant circuit to control oil temperature under sustained load. Selection must be confirmed by OEM part number 1675774, the exact engine/product model, serial number and the installed assembly configuration.

🚤 Compatibility

Typically suits:

• Volvo Penta TWD1643GE
• Volvo Penta TWD1652GE
• Volvo Penta TWD1653GE
• Volvo Penta TAD1640GE
• Volvo Penta TAD1641GE
• Volvo Penta TAD1642GE
• Volvo Penta TAD1641VE
• Volvo Penta TAD1642VE
• Volvo Penta TAD1650GE
• Volvo Penta TAD1651GE
• Volvo Penta TWD1663GE

• Engine Family: TWD, TAD
• Serial Range: SN-2016010024

⚙️ Key Features

• OEM Volvo Penta part number 1675774
• Net weight approximately 6.62 kg
• Fits TAD1640-TAD1651 GE/VE and TWD1643-TWD1663 GE 16-litre diesel engines
• Complete oil cooler assembly, not a service kit
• No superseding part number applies - this is the current item

🔌 Function

The oil cooler removes surplus heat from the engine lubricating oil by passing it across a coolant-fed heat exchanger core. This keeps oil viscosity and film strength stable, protecting bearings, turbocharger and other lubricated components during prolonged high-load running.

⚠️ Common Signs of Failure

• Persistently high oil temperature or high oil temperature alarms under load
• Oil in the coolant or coolant in the oil, indicating internal core leakage
• External weeping or seepage at the cooler body or seal faces
• Reduced oil pressure caused by internal blockage or restricted flow
• Overheating and loss of cooling efficiency from silting or scaling inside the core

🛠️ Service Notes

• Fit new O-rings, seals and gaskets throughout, lubricated lightly with clean oil so they seat rather than roll, and clean both mating faces first
• After a cooler that has leaked internally, change the engine oil and filter and flush the oil side — water or coolant contaminated oil must not be left in the engine
• Deal with the cause on the raw water side as well: clean the strainer and hoses, check the sea water pump impeller for missing vanes, and check the anodes where the installation has them
• A cooler being reused or investigated can be pressure tested on the water side to confirm whether it is sound before it goes back on
• Refill and bleed the oil and cooling systems, run the engine and then recheck every joint once hot, when the seals are at working temperature and pressure

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 1675774 → Superseded by 20700516 from serial 2016010025

Aftermarket / Verified Equivalents

• MOPA aftermarket replacement to Volvo 20700516 specification
• SRP: OC-75774
• Bison Parts: BP113-498

📦 Condition

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