20459248 Manifold | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta manifold used in the crankcase-ventilation and inlet-system assembly. It is supplied as an individual service component under part number 20459248 and is intended to restore the original fit, sealing, alignment, retention or operating function of the specified assembly. This listing supplies the named part only; adjoining components shown in the engine arrangement are serviced separately unless explicitly stated.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD620VE

• Engine Family: TAD

⚙️ Key Features

• Manifold in the crankcase-ventilation and inlet system
• 0.603 kg
• Listed for a single TAD-series fitment

🔌 Function

Collects and distributes crankcase vapour or inlet air between the connected pipes and engine passages.

⚠️ Common Signs of Failure

• Air, oil vapour or fluid leakage develops at a joint
• The casting is cracked, warped or corroded
• Internal passages become restricted by deposits
• Mounting flanges no longer remain flat or aligned
• Engine breathing or inlet performance changes because flow is disrupted

🛠️ Service Notes

• A manifold is a distribution casting, so every port and joint has to seal — renew all gaskets, seals and sealing washers on refitting rather than reusing the old ones
• Clean both mating faces back to bare metal and check the flanges for flatness, cracks and corrosion pitting; a distorted flange will not pull down onto a new gasket
• Make sure the internal passages are clear of scale, carbon and debris before fitting, and blank the open ports while the manifold is off the engine
• Draw the fasteners down progressively in the sequence and to the torque given in the workshop manual for your engine, then recheck after the first heat cycle if the manual asks for it
• On any manifold carrying raw water or exhaust gas, inspect the internal waterways at the same time — these castings corrode from the inside out and can look sound outside while the passages are wasted

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20459252 - Related pressure regulator
• 20405626 - Related oil separator
• 20405627 - Oil-separator gasket
• 20459255 - Related ventilation tube
• 20459257 - Related breather pipes
• 20459259 - Related breather pipes

📦 Condition

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