SKP SK800403 HVAC Heater Hose Connector - Heater To Engine

HVAC Heater Hose Connector for OE-Style Repair

Restore proper coolant flow through the heater core system with this SKP HVAC heater hose connector. It is built as a replacement for the engine-side heater hose fitting and is used on a wide range of Chevrolet, GMC, Cadillac, Buick, Pontiac, Oldsmobile, Saab, and Ford applications.

SKP SK800403 is made to OE standards for fit, quality, and durability, giving you a direct replacement option for heater hose connector service on vehicles such as the Chevrolet Trailblazer, GMC Envoy, and Ford F-150.

Key Features

• Replacement HVAC heater hose connector for engine-side coolant routing
• OE-style construction for proper fit and lasting repair
• Supports coolant transfer between the engine and heater core
• Direct replacement for many rear-heater and standard heater hose applications
• SKP SK800403 cross-references Dorman HELP 47165, 80461 and Gates 28500 for the same application

Detailed Description

This heater hose connector is used in the vehicle’s HVAC coolant circuit to connect heater hoses and maintain flow to the heater core. When the original fitting cracks, leaks, or no longer seals correctly, cabin heat can be reduced and coolant loss can occur. SKP SK800403 is engineered as an OE-standard replacement for service on many GM trucks and SUVs, including the Chevrolet Trailblazer, GMC Envoy, and Cadillac Escalade, as well as select Ford truck and van applications.

Compatible With 2002-2009 Chevrolet Trailblazer, heater inlet hose fitting at engine; w/rear heater/air conditioning unit; straight. Compatible With 2002-2009 GMC Envoy, heater inlet hose fitting at engine; w/rear heater/air conditioning unit; straight. Compatible With 1997-2000 Ford F-150, heater hose tube; 5/8 in. to 5/8 in.

What It Helps Fix

• Coolant seepage at the heater hose connection
• Loss of cabin heat from restricted heater-core coolant flow
• Cracked or brittle original plastic heater fittings
• Improper sealing at the engine-side heater hose outlet or inlet
• Service issues on vehicles with rear heater or rear air conditioning plumbing

Installation Notes and Tips

Match the replacement to the original hose routing, connector style, and vehicle configuration before installation. Several applications use different heater inlet, heater outlet, or water shutoff valve fittings, so verify the year, make, model, and notes in the fitment data before ordering. Inspect the hose ends and sealing surfaces during service to help ensure a secure connection.

Quality Assurance

SKP manufactures this connector to meet OE standards for quality and durability, supporting a dependable repair for the heater core system. Part number SK800403 is intended as a direct replacement for the listed applications.