Brand-new, clear white coolant expansion tank. It looks neat again.
Problems with it are rare; they actually never break. But if you can't see and check the coolant level, your engine might break down. You won't quickly notice small leaks at a hose connection or radiator if the tank is brown and dirty inside.
Coolant should be replaced every 3 to 5 years because its corrosion-inhibiting properties are then greatly reduced. As a result, the head gasket can start to rust; we've seen it happen often.
Clean coolant shows that the engine, head gasket, and radiator are in good condition.
If the internal oil cooler/heat exchanger leaks, a little oil gets into the coolant. This is because the oil pressure is much higher than the coolant pressure. With a clean tank, you'll notice this right away.
With a blown head gasket, small bubbles rise in the expansion tank. You can't see them in that old brown tank.
You won't be able to clean an old tank, so this tip will save you some time.
One tank for Turbo and non-turbo
Porsche used a different expansion tank for the 944 Turbo than for the non-turbo 944. The Turbo tank has an extra connection for cooling the turbo. This means that you need to pay close attention to which expansion tank you order from most suppliers.
You don't have to with ours. This tank has the extra Turbo connection. Do you have a 944 or 924S without a turbo? We have already capped this connection with a well-fitting cap. After installation, you won't see it because the air filter housing covers this connection. The shape and mounting points are the same for all versions.
Installation:
With a large syringe and a small hose, you can suction almost all the fluid out of the tank. Then clamp the hose and unscrew it. The tank has 3 mounting points; the bottom screw only needs to be loosened halfway. Or take it on while doing another enjoyable job, such as replacing the head gasket, water pump, or radiator.
944 NA: 94410612506
944 turbo: 95110602502
cap: 94410625700
This product is of very good quality.
Suitable for
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Porsche 944: 1982-1991 (2.5, 2.7, 944 S and 944 S2, Coupé and Cabriolet)
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Porsche 944 Turbo and Turbo S: 1985-1991
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Porsche 924S: 1986-1988
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Steering position: LHD and RHD