Genuine VW/Audi Expansion Tank Hose 8K0 121 164 R TC Kline Minimal tools required: Easy to

Minimal tools required: Easy to install with basic hand tools

Requires proper timing tools and alignment to manufacturer specifications

This Bosch upstream oxygen sensor is designed for Audi 4

Professional installation is recommended to ensure proper routing and secure clamping

Direct Replacement: Easy swap for failed or worn thermostat

Genuine VW/Audi Expansion Tank Hose 8K0 121 164 R TC Kline Minimal tools required: Easy toGenuine VW Audi expansion tank hose, part number 8K0 121 164 R. This OEM coolant reservoir hose connects the expansion tank to the cooling system, allowing for proper coolant overflow and recovery. Built to factory specs for a secure, leak free connection. Key Features & Benefits OEM Quality: Manufactured to Volkswagen Audi OE standards for exact fit and function. Durable Construction: Made from high grade rubber compounds to resist heat, pressure,