Mopar Water Neck

The Mopar Water Neck from TRANS-DAPT is an essential component for engine builders and restoration enthusiasts working with Mopar-platform vehicles. This adapter connects the radiator hoses to the engine block thermostat housing, effectively directing coolant flow while maintaining system pressure and preventing leaks that can lead to overheating.

Engineered with precise port sizing and constructed from cast iron or ductile iron, this water neck is designed to handle both stock and upgraded cooling systems without restriction. Its compact dimensions of 4.8 x 3.4 x 5.3 inches ensure a proper fit in tight engine bays, common in vintage Mopar vehicles, while its weight of 1.04 pounds reflects its robust construction.

Ideal for restorations, custom builds, and engine swaps, this water neck provides the reliability needed for high-output engines. By eliminating common leak points at the engine block junction, it ensures the integrity of the cooling system, which is crucial for engine longevity and performance.