23485230 / 40005787 Aftermarket Volvo Penta D4/D6 Fuel Cooler | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement Fuel Cooler - Replaces Part Number: 23485230

New replacement fuel cooler for Volvo Penta D4 and D6 common-rail marine diesels. It replaces earlier P/N 3583918 and cross-references Volvo Penta 23485230 and 40005787.

⚙️ Key Features

• Current replacement family for Volvo Penta 3583918

• Cross-references 23485230 and 40005787

• Approximately 55mm/2-inch diameter × 152mm/6-7-inch overall length

• Approximately 2-inch seawater connection

• Designed for D4/D6 fuel-return cooling circuits

🧰 Kit / Assembly Contents

• 1 × Complete fuel-cooler assembly - P/N 23485230 / 40005787

• 1 × Integrated seawater tube bundle

• Fuel-line seals, seawater hoses and mounting hardware are renewed separately

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 23485230 / 40005787 → Supersede 3583918

OEM / Related Numbers:

• 3583918

• 23485230

• 40005787

Aftermarket / Verified Equivalents:

• Swedish Lorry Parts: IC-230

• Mr Cool: MRC23485230CN

• Lenco: LE23485230

🚤 Compatibility

Commonly used on:

• Volvo Penta D4 and D6 common-rail marine diesel engines

Typically suits:

• Engine / Equipment models:

• D4-225, D4-260 and D4-300 families where the listed cooler is specified

• D6-280, D6-310, D6-330, D6-350, D6-370, D6-400 and D6-435 families where specified

• IPS, sterndrive and inboard D4/D6 installations matched by engine serial

• Output / Engine Rating: Approximately 225HP - 435HP

• Engine / System Type: Inline four- or six-cylinder turbocharged common-rail marine diesel engine

• Year Range: D4/D6 production; serial-dependent

• Serial / Model Identification: Confirm engine serial and whether OEM 3583918, 23485230 or 40005787 appears in the parts catalogue.

🔌 Function

The cooler removes heat from the fuel return or supply circuit before the fuel returns to the tank or injection system. Cooler fuel improves density, reduces vapour formation and supports consistent power under sustained load.

Common signs of failure:

• Power loss or unstable running after prolonged operation

• Hot-start difficulty or fuel-vapour symptoms

• Fuel leakage into the raw-water circuit

• Saltwater entering the fuel system

• Corrosion, restricted water flow or failed pressure test

📦 Condition

• New aftermarket replacement part

• Brand new

• Supplied in original or equivalent packaging