421208 Outlet Valve | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta outlet valve from the Engine group, weighing 0.166 kg and listed for 8 applications across the D, TD, TMD and MD series.

🚤 Compatibility

Typically suits:

• Volvo Penta D70CHC
• Volvo Penta D70CRC
• Volvo Penta TD70CHC
• Volvo Penta TMD70C
• Volvo Penta TD70CRC
• Volvo Penta MD70B
• Volvo Penta D70B
• Volvo Penta MD70C

• Engine Family: D, TD, TMD, MD

⚙️ Key Features

• 0.166 kg
• 8 published applications on D, TD, TMD and MD engines
• Exhaust side valve rather than inlet

🔌 Function

Opens to release burnt gas from the cylinder into the exhaust port and seals the chamber when closed.

⚠️ Common Signs of Failure

• Loss of compression with a puffing sound at the exhaust
• Burnt or pocketed valve face, sometimes with a notch in the edge
• Stem worn or the head necking down near the fillet
• Guide clearance excessive, with oil drawn down the stem
• Clearances closing up between services as the seat recedes

🛠️ Service Notes

• Renew the valve guide and recut the seat when fitting a new exhaust valve, as guide wear is what burnt the old one
• Valve guides 422320 and 422762 cover other engines in this range, so match the guide to your engine before ordering
• Never refit an exhaust valve with a necked stem, as failure drops the head into the cylinder

📦 Condition

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