468988 Inlet Manifold | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta inlet manifold from the Inlet and Exhaust System group, weighing 4.995 kg and listed for 10 applications across the TD, TWD, TAMD and TAD series. It supersedes part numbers 423271 and 468551, consolidating two earlier manifold listings into one current number.

🚤 Compatibility

Typically suits:

• Volvo Penta TD121G-87
• Volvo Penta TWD1230ME
• Volvo Penta TD120G
• Volvo Penta TD120GG PP
• Volvo Penta TAMD121D
• Volvo Penta TAMD122A
• Volvo Penta TAMD122A/C
• Volvo Penta TAMD122D
• Volvo Penta TAD121CHC
• Volvo Penta TD120GG

• Engine Family: TD, TWD, TAMD, TAD

⚙️ Key Features

• 4.995 kg cast inlet manifold
• Supersedes 423271 and 468551
• 10 applications across the TD, TWD, TAMD and TAD series
• Inlet and Exhaust System group
• Also supersedes Volvo part number 468238

🔌 Function

Distributes charge air from the turbocharger or intercooler evenly to the cylinder head inlet ports.

⚠️ Common Signs of Failure

• Whistling or hissing under load as boost escapes the joint
• Boost pressure down and black smoke under acceleration
• Oily film or dust tracks around the manifold flange
• Cracks around a mounting boss or port
• Gasket faces pitted or corroded

🛠️ Service Notes

• Renew the manifold gaskets and any inlet o-rings at the same time - the o-rings 469508 and 469509 in this range serve the same air path
• Check the flange face for flatness before bolting a new manifold down

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 468988 → Supersedes 423271

OEM / Related Numbers

• 468551 earlier number superseded by this part

📦 Condition

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