Volvo Penta O-Ring 3583832 D4 / D6 Cooling System Seal

Part Information

• Part Number: 3583832
• Brand: Volvo Penta
• Official Product Type: O-Ring Cooling System Seal
• System: Cooling / Heat Exchanger / Oil Cooler
• Engine Family: D4, D6 Diesel
• Supersedes: No confirmed supersession 3583832 is the current active OEM number

Compatible Applications

• Volvo Penta D6-280A-A (confirmed fitment trail)
• Broader D4 and D6 diesel cooling-system applications confirm against your engine serial number and the correct Volvo Penta cooling-system diagram before ordering

Serial Number Fitment Notice

Fitment can vary by engine build date and cooling-system layout. Always verify part number 3583832 against your engine serial number and the applicable Volvo Penta parts diagram before ordering. Several closely positioned O-rings in the D4/D6 cooling group share a similar appearance but seal different locations.

What This Part Does

This O-ring provides a fluid-tight seal at a cooling-system joint on D4 and D6 diesel engines typically within the heat exchanger or oil cooler circuit. A healthy seal here prevents coolant or oil cross-contamination and keeps the cooling system at the correct pressure.

When to Replace

Replace this seal any time the related cooling-system connection is opened for service, or if the original shows flattening, hardening, swelling, surface cracking, or seepage during disassembly. Because the part cost is minimal relative to the labor of reopening the same assembly, replacing it as a matter of routine during adjacent cooling service is good practice.

Installation Notes

Clean the seal groove and inspect mating surfaces before installation. Verify the exact diagram position neighboring O-rings in the same D4/D6 service group can look nearly identical. Do not substitute by size alone; confirm the part number first.

Related Parts Commonly Serviced Together

• Volvo Penta Thermostat Cooling O-Ring 3583830 adjacent cooling-system seal in the same D4/D6 service group
• Volvo Penta O-Ring 3583831 Heat Exchanger / Oil Cooler Seal | D4 D6 companion seal frequently replaced in the same service event
• Volvo Penta Thermostat 3583827 thermostat commonly replaced during D4/D6 cooling-system service
• Volvo Penta Heat Exchanger End Cover 22369744 D4 D6 housing this O-ring may seal against
• Volvo Penta Oil Cooler OEM Part 21657814 oil cooler assembly associated with this seal family
• Volvo Penta Green Premixed Coolant 22567233 5L / 50:50 Ready-to-Use top up coolant after cooling-system service

Parts Desk Insights

Best use case: Routine D4/D6 cooling-system service especially heat exchanger or oil cooler R&R. This seal is almost always replaced as part of a multi-seal kit rather than on its own, since neighboring O-rings 3583830 and 3583831 are accessed in the same disassembly.

Common issue: Customers occasionally order only the one seal showing visible wear, then have to re-open the assembly for a neighboring seal shortly after. Ordering all three in the 3583830 / 3583831 / 3583832 group at the same time avoids a repeat job.