ProParts 31368200 Coolant Breather Pipe for Volvo

The ProParts 31368200 Coolant Breather Pipe is a direct replacement component designed for Volvo vehicles, providing a crucial connection between the cooling system expansion tank and the engine. This essential cooling system component allows coolant to transfer between the expansion tank and the engine as temperatures and pressures fluctuate during operation.

Function and Purpose:

As the engine heats up, coolant molecules expand and pressurize the cooling system. This breather pipe allows excess expanded coolant to travel from the engine to the expansion tank for temporary storage. When the engine cools down, the coolant contracts, creating a vacuum that draws coolant back from the expansion tank through the breather pipe to maintain proper cooling system levels.

Key Features:

• Direct replacement for OEM part numbers 31368200, 87438200, and 31319051
• Designed to match original equipment specifications for proper fit and function
• Helps prevent cooling system leaks that can lead to engine overheating
• Essential maintenance component subject to heat stress and fatigue over time
• Quality aftermarket construction for reliable performance

This coolant breather pipe is a critical cooling system component that should be replaced if showing signs of wear, cracks, or leaking to maintain proper engine operating temperature and prevent costly overheating damage.