Genuine 9134978 Heater Core Pipe Kit with Firewall Junction Coupler

The Genuine 9134978 heater core pipe kit is an OEM replacement assembly designed to restore proper coolant flow to your vehicle's climate control system. Early Volvo models originally equipped with steel heater core pipes were prone to rust and corrosion, leading Volvo to upgrade to aluminum pipes which are included in this updated kit that replaces both styles.

What's Included:

• Heater core pipe coupler assembly
• Aluminum hard pipes (upgraded from original steel design)
• O-rings and spacers for both firewall sides
• Firewall junction coupler

Key Features:

• Genuine OEM quality part manufactured to Volvo specifications
• Upgraded aluminum construction resists corrosion better than original steel pipes
• Direct replacement for original equipment
• Includes all necessary components for complete installation

Engine coolant flowing through the heater core warms the air in the heater box for passenger compartment heating. Corroded or leaking heater pipes prevent the climate control system from properly warming the cabin. This complete pipe kit ensures reliable coolant flow and optimal heating system performance.

Note: Two additional O-rings for the heater core connection are required but not included with this kit.