Coolant Hose Flange Kit - Audi / B7 / 2.0L / A4

Rein Upgraded Aluminum coolant flange replacement kits are built with direct-fit, premium components to provide a complete and convenient solution for a typically time-consuming repair. These kits address all critical parts involved in replacing cracked, leaking, swollen, or deteriorated cylinder head coolant junction flanges-including the flange itself, thermostat, temperature sensor, heater and/or radiator hose(s), and all required gaskets and seals. Plastic flanges often fail due to repeated thermal cycling, leading to warping and coolant leaks. Rein upgrades the flange to durable aluminum for extended service life, while the replacement hose(s) feature premium rubber compounds and factory-style quick-connect fittings for secure, reliable installation. To ensure lasting results, Rein recommends replacing all compromised cooling components and performing a full coolant flush using high-quality coolants such as Pentosin Pentofrost. Rein kits offer a Fix-It-Right-The-First-Time solution to restore long-term cooling system performance.

• A comprehensive kit designed to service the commonly failing cooling system components and extend the service life in a single repair.
• Ensures a long life of the vehicle's cooling system.
• Features an Upgraded Aluminum coolant flange.
• Includes factory style heater and or radiator hose(s).

OEM Part #


06D-121-132-C / 06D121132 C / 06D 121 132 C / 06D121132C


MFR Part # CHU1648