Dorman OE Solutions HVAC Heater Hose Tee 5/8 In X 3/4 In for 1996-1999 Cadillac Chevrolet GMC 800-422

Heater hose tee for 1996-1999 Cadillac Chevrolet and GMC vehicles used to replace cracked or leaking factory HVAC connectors.

Built to meet the manufacturer's design intent for reliable service, this connector is constructed from quality materials and rigorously pressure tested to ensure leak-free performance and long-term durability under hood temperatures.

Key Features

• Direct replacement for original equipment heater hose connectors
• Constructed from high-quality materials for extended service life
• Rigorously pressure tested to verify reliable performance
• Designed with 5/8 inch by 5/8 inch by 3/4 inch port sizes
• Engineered to match OE form, fit, and function

Benefits

• Restores proper coolant flow to the vehicle heating system
• Eliminates coolant leaks caused by failed plastic tees
• Prevents engine overheating and cabin heat loss
• Reduces the risk of repeat repairs with durable construction
• Ensures a smooth installation with precise factory-style fitment

Application

Ideal for owners of late 90s GM trucks and SUVs experiencing coolant leaks at the heater core inlet or outlet, this part serves as a critical repair component to maintain safe operating temperatures and functional cabin heating.

Fitment Notes

• Compatible with select 1996-1999 Cadillac models
• Compatible with select 1996-1999 Chevrolet models
• Compatible with select 1996-1999 GMC models
• Replaces General Motors part number 15982138

Why Choose Dorman - OE Solutions?

• Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function.
• Built with quality materials and validated through testing to stand up to daily driving demands.
• Offers a smart way to restore your vehicle with confidence in fit and durability.

What's in the Box

• 1 HVAC Heater Hose Connector

Item Dimensions

• Length: 4.5 inches
• Width: 3.2 inches
• Height: 1.4 inches
• Weight: 0.1 lbs