Description: Function: Heat Sink overflow tank can balance the water tank pressure, effectively cool the engine, and enable the engine to perform its best. It can also be used as an oil collection tank to collect impurities, carbon deposits and accumulated sludge in the intake system, extending the service life of the engine.Features: Coolant overflow tank, male to barb thread size is M14x1.5. For use with 3/8" ID pipe, overflow tank storage capacity 1L.Product Size: Water coolant overflow expansion tank 168mmx85mmx115mm, screw hole 5mm, water pipe hole 9mm.Universal: Heat Sink reservoir tank fits most vehicles. Please measure before purchasing to ensure there is enough space for installation.Note: Coolant reservoir tank, tight sealing cap, fully TIG welded, threaded with o ring gasket, keeps the coolant reservoir well sealed and prevents coolant leakage. Specification: Material: Aluminum AlloyProduct Size: 168mmx85mmx115mm, Screw Hole 5mm, Water Pipe Hole 9mm Package Includes: 1 Heat Sink Overflow Tank Note: Please allow slightly errors 1-2cm differences due to manual measurement.