4G0121081BT – Coolant Expansion Tank Vent Tube
$ 45.41 (exc. GST)
This is a rigid plastic engine coolant pipe, specifically the rear vent tube that connects to the expansion tank. It forms a crucial part of the cooling system’s de-aeration circuit, allowing trapped air and steam to escape to the highest point of the system, the expansion tank.
Out of stock
- Manufacturer’s warranty (typically 12 or 24 months or KM limited)
- Delivery time: 1-2 business days
- Send us your VIN to ensure compatibility with your car
Description
Description
This is a rigid plastic engine coolant pipe, specifically the rear vent tube that connects to the expansion tank. It forms a crucial part of the cooling system’s de-aeration circuit, allowing trapped air and steam to escape to the highest point of the system, the expansion tank.
Made from plastic exposed to constant high temperatures, this pipe is prone to becoming brittle and cracking, leading to sudden and significant coolant loss. Failure can cause rapid engine overheating due to the loss of coolant and the introduction of air into the system. The connection points and o-rings are common failure locations.
This is an OEM equivelent part. Guaranteed quality.
Alternate Part Numbers: 4G0121081BT
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