Gates 28502 HVAC Heater Hose Connector

Gates 28502 Quick-Lock Heater Hose Connector

The Gates 28502 is a Quick-Lock straight heater hose connector made for 3/4 in. hose and 3/4 in. tube connections. It provides a direct replacement solution for heater hose routing on a wide range of GM, Ford, Saab, Isuzu, Hummer, Chevrolet, and GMC applications.

Key Features

• Quick-Lock straight connector for heater hose service
• 3/4 in. hose inside diameter and 3/4 in. tube outside diameter
• Used in heater-to-engine, engine-to-heater, and pipe connection locations
• Gates Hose Connector (Quick-Lock) line for heater hose replacement
• Part number 28502 for catalog and fitment lookup

Product Details

Built for heater hose repair work, this Gates heater hose connector is specified as a Quick-Lock straight connector with matching 0.75 in. hose I.D. and 0.75 in. tube O.D. That sizing matters when replacing worn or damaged heater hose connections on vehicles such as Chevrolet Cavalier, GMC Envoy, and Ford Windstar, where the heater circuit depends on a secure hose-to-pipe interface. The Gates 28502 is also cross-referenced to AP Exhaust 28502 and Four Seasons 34002 for the same application.

The Hose Connector (Quick-Lock) product line focuses on fast heater hose replacement without changing the overall routing design. For vehicles with factory quick-connect style heater plumbing, this connector supports a clean service repair on applications including Hummer H3, Chevrolet Trailblazer, and GMC Canyon.

What It Helps Fix

• Cracked or leaking heater hose connector ends
• Loose quick-lock heater hose connections
• Coolant seepage at heater pipe junctions
• Damaged hose-to-pipe interfaces during heater hose service
• Restoration of heater circuit flow after connector failure

Installation Notes and Tips

Verify the hose inside diameter and tube outside diameter before installation; this part is sized at 0.75 in. for both. Confirm the vehicle position and routing against the fitment list, since this connector is used in multiple locations such as heater to pipe, engine to heater, valve to engine, and tee connections. For best results, inspect the adjoining heater hose and pipe for wear, corrosion, or deformation before reassembly.

Compatible vehicle coverage includes 2010 Hummer H3, 2006-2009 Chevrolet Trailblazer, 2006-2009 GMC Envoy, 1999-2003 Ford Windstar, and 1997-1999 Chevrolet Cavalier, along with many additional GM truck and SUV applications listed by year, make, model, and position.

Quality Assurance

Gates is a recognized name in automotive hose and fluid transfer components, and this heater hose connector is cataloged for direct-fit replacement use across confirmed applications. Part number 28502 is listed with expanded fitment data for 1993-2010 vehicles.