20412689 Exhaust Pipe | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta cast exhaust pipe assembly from the engine inlet and exhaust system. Volvo catalogues identify the component as an exhaust pipe, while some interchange catalogues group the same casting as a manifold; fitment must therefore be confirmed from the engine schematic.

⚙️ Key Features

• Heavy-duty cast exhaust-gas passage
• Product function group 2511 - inlet and exhaust system
• Designed for turbocharged diesel exhaust temperature
• Requires matching gaskets, studs and turbocharger connection
• Engine type: Volvo Penta turbocharged industrial or marine diesel

🔌 Function

Collects and routes exhaust gas from the cylinder head toward the turbocharger or downstream exhaust connection.

⚠️ Common Signs of Failure

• Exhaust soot or gas leakage
• Cracking from thermal cycling
• Warped gasket faces
• Loss of turbocharger response
• Exhaust noise or hot-gas damage

🛠️ Service Notes

• Fit new gaskets and seals at every joint you disturb; exhaust gaskets take a set once they have been heat-cycled and will not seal a second time
• Clean the flange faces back to bare, flat metal and check them for distortion and pitting — a warped face will blow out a new gasket however hard it is pulled up
• Renew corroded studs and nuts, use a high-temperature anti-seize on the threads, and tighten in the sequence and to the figures in the workshop manual for your engine; recheck once the engine has been run up to temperature and allowed to cool, because the joint relaxes over the first few heat cycles
• Support the pipe on its own mountings so nothing hangs on the flange and no hose pull is taken through the joint, and keep the specified clearance to hoses, wiring and glassfibre
• On water-cooled sections, check the cooling passages are clear and the water connections sound before running — a restricted jacket will cook the pipe and the hose behind it

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20412689 → Supersedes 8194526

OEM / Related Numbers

• 8194526 earlier number superseded by this part

📦 Condition

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