The OEM Heater Core Hose Set for Audi B5 S4 2.7T has become NLA (No Longer Available) from Audi, Part # 8D0 819 731 AQ & 8D0 819 737 T. 034Motorsport has designed and manufactured this high quality, high-performance set of hoses to replace your worn and cracked factory heater core hoses.
The 034Motorsport Silicone Heater Core Hose Set is manufactured from high-quality automotive-grade reinforced silicone and is guaranteed to outlast the factory rubber hoses!