Gates HHA146 HVAC Heater Hose Assembly

Gates HHA146 Heater Hose Assembly

The Gates HHA146 heater hose assembly is an OE-exact replacement for select Cadillac, Chevrolet, and Pontiac applications. Built with OE-grade materials and a steel construction, it is made for coolant air bleed crossover pipe service where accurate fit and dependable sealing matter.

For Cadillac CTS, Chevrolet Camaro, Chevrolet Corvette, Chevrolet Caprice, Chevrolet SS, Pontiac G8, and Pontiac GTO applications, this Gates heater hose assembly supports direct replacement of the original coolant crossover pipe assembly. The HHA146 is a practical choice when servicing a heater hose assembly or coolant air bleed crossover pipe on GM performance and full-size platforms.

Key Features

• OE-exact fit for select Cadillac, Chevrolet, and Pontiac vehicles
• Steel construction for the coolant air bleed crossover pipe
• Protective sleeve included on the pipe assembly
• Designed as a molded heater hose assembly replacement
• Built to match original equipment comparison standards
• Reference vehicle application listing covers Cadillac, Chevrolet, and Pontiac 6.0L and 6.2L applications

Detailed Description

Gates Heater Hose Assemblies are engineered with OE-grade materials to deliver an OE-exact fit while helping reduce repair cost versus dealer replacement. Part number HHA146 is a molded steel coolant air bleed crossover pipe with a protective sleeve and plugs, made for vehicles that use this style of heater hose assembly in the cooling system. If you are replacing a worn or damaged crossover pipe on a Chevrolet Camaro, Chevrolet Corvette, or Cadillac CTS, the HHA146 provides a direct-fit service part for the original layout.

This part cross-references Dorman OE Solutions 626-592 for the same application.

What It Helps Fix

• Coolant leaks at the air bleed crossover pipe
• Cracked or corroded heater hose assembly components
• Damaged OE coolant crossover pipe fitment
• Cooling system service issues on GM V8 applications
• Loss of proper coolant routing through the crossover assembly

Installation Notes and Tips

Verify vehicle application by year, make, model, and engine before installation. Confirm the original routing and connection points match the OE layout on your Cadillac CTS, Chevrolet Camaro, Chevrolet Corvette, Chevrolet Caprice, Chevrolet SS, Pontiac G8, or Pontiac GTO. Inspect adjacent hoses, clamps, and sealing surfaces during service to help ensure a clean cooling system repair.

Quality Assurance

Gates builds this heater hose assembly using OE-grade materials and OE-exact comparison standards to support accurate fit and reliable replacement performance. The HHA146 is intended for direct replacement service on the listed applications.