3978061 Exhaust Manifold | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta exhaust manifold from the inlet and exhaust system, weighing 2.99 kg and listed for 12 applications across TWD and TD series engines. It supersedes part number 465878, which is also the number quoted in the note against it. At under 3 kg this is a single manifold section rather than a full-length casting.

🚤 Compatibility

Typically suits:

• Volvo Penta TWD610G
• Volvo Penta TWD610P
• Volvo Penta TWD610PB
• Volvo Penta TWD610V
• Volvo Penta TWD630ME
• Volvo Penta TD630ME
• Volvo Penta TD630VE
• Volvo Penta TWD630VE
• Volvo Penta TD640VE
• Volvo Penta TD610G
• Volvo Penta TD610M
• Volvo Penta TD610V

• Engine Family: TWD, TD

⚙️ Key Features

• 2.99 kg single manifold section
• 12 applications across TWD and TD series engines
• Supersedes 465878

🔌 Function

Collects exhaust gas from the cylinder head ports and carries it onward to the turbocharger or exhaust system.

⚠️ Common Signs of Failure

• Ticking or puffing at the port faces, loudest from cold
• Sooty black staining around a joint or gasket
• Flange faces warped or corroded
• Cracks between ports or around a stud boss
• Fumes or a smell of exhaust in the engine space

🛠️ Service Notes

• An exhaust leak in an engine space is a fume and carbon monoxide risk, so do not leave a leaking joint in service
• Renew the gaskets, nuts and any seized studs, and check the flange faces for flatness before assembly
• Tighten from the centre outwards and re-check after a full heat cycle

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3978061 → Supersedes 465878

OEM / Related Numbers

• 465878 earlier number superseded by this part

📦 Condition

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