Coolant Hose Fitting 8an to 5/8 Slip 1/4 Thru

The Coolant Hose Fitting 8AN to 5/8 Slip 1/4 Thru from AEROMOTIVE is a precision adapter designed for high-performance coolant systems. It is ideal for applications such as custom LS engine swaps, forced-induction cooling circuits, and race-car thermal management. This fitting is engineered to provide reliable, leak-free connections in tight spaces.

Constructed from durable aluminum alloy, the fitting resists corrosion and can handle the sustained coolant temperatures typical of turbocharged, supercharged, and naturally aspirated performance engines. It features an 8AN primary port, a 5/8-inch slip connection, and a 1/4-inch through passage for bypass or secondary flow routes. The design allows for the use of crimp-style or push-lock hoses rated for high pressures.

Mechanics and engine builders favor this adapter for its versatility in both street and track applications. It is particularly beneficial in tight engine bays where every port counts, enabling throttle-body heater circuits, block drain lines, or remote bleeds without obstructing primary coolant flow. This fitting is a trusted choice for those looking to optimize their vehicle's cooling system.