air duct Genuine Porsche part 94420731100

Code: 94420731100

Genuine Porsche part

air duct

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Oil Cooling Air Duct. Porsche 944 1989-91

94420731100

Product Information

Oil Cooling Air Duct.
Restore the air-flow to your engine oil cooler with this genuine Porsche air duct. Designed for the Porsche 944 S2 (1989-91) with oil-cooler assembly, this duct channels fresh air into and out of the oil cooler core, ensuring effective oil-temperature control under load.

Fits:

Porsche 944S2 3.0L 16V 1989-91

Diagram Ref No 1

What This Product Does:

The oil cooler air duct is part of the engine’s oil-cooling / heat-exchange system. It channels ambient air into the oil-cooler core or directs heated air away from the cooler to help maintain optimum oil temperature.
In the 944 S2 the engine is front-mounted and uses an oil cooler (in addition to the radiator) to help manage oil temperature. The duct ensures that sufficient fresh air flows through/around the oil cooler fins, and that hot air is removed efficiently.
Proper operation of the duct helps the oil-cooler perform its job, thereby helping to keep engine oil at safe operating temperatures, protecting bearings, seals and prolonging engine life.

Symptoms & Signs of Wear / When To Replace:

Visible damage, cracks or missing ducting around the oil cooler – if the duct is cracked, split or detached, air-flow may be reduced.
Over-temperature of engine oil or higher than normal oil temps (especially under load or warm ambient conditions) — could indicate the oil cooler is not getting enough air due to duct failure.
Reduced or blocked airflow in the front ventilation channel around the oil cooler (debris, lost mounting, broken duct).
Increased oil cooler noise or rattles – if the duct is loose or broken, air turbulence or vibration may be noticeable.
Signs of heat damage downstream of the cooler – e.g., heat-scorching, melted components, because hot air was not guided away properly.

Why Replacement Matters:

Ensures oil-cooler efficiency: Without the duct functioning correctly, the oil cooler may not receive enough fresh airflow or may overheat, which can degrade oil quality and accelerate wear.
Protects engine reliability: Proper oil temperature helps protect engine bearings, seals and performance integrity — the duct contributes indirectly but significantly.

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air duct Genuine Porsche part 94420731100