Rein CHE0203 Engine Coolant Hose - Oil Cooler Outlet To Pipe

OE-Style Coolant Hose for European Applications

The Rein CHE0203 engine coolant hose is a direct replacement for the original hose assembly used on select Volkswagen and Audi applications. Built for the oil cooler outlet to pipe connection, it matches OE dimensions and connector style for a precise service fit on the 2000-2005 Volkswagen Passat and 2001 Audi A4 / A4 Quattro.

Key Features

• Direct replacement design reduces installation time.
• No cutting, refitting, or hose adjustment required.
• Helps prevent leaks and repeat repairs from reused quick connectors and O-rings.
• EPDM hose construction resists heat, salt, road debris, oil, and other contaminants.
• Black single-hose design with OE-style thermoplastic quick connect fittings.
• Rein CHE0203 is built to match the original hose shape, branch sizing, and connection points.

Detailed Description

Rein CHE0203 is an OE quality water hose engineered for European vehicles that require an exact-fit coolant line at the oil cooler outlet to pipe location. The hose is designed as a direct replacement for the factory part, with the same end dimensions and connector style to support a clean repair on the Volkswagen Passat and Audi A4 platform. This makes CHE0203 a practical choice when replacing a worn, cracked, or leaking coolant hose assembly.

This part cross-references 06B121058 for the same application. For buyers searching for a Volkswagen Passat coolant hose or Audi A4 oil cooler outlet to pipe hose, CHE0203 provides an OE-style service solution without modifying the original routing.

What This Hose Helps Fix

• Coolant leaks at the oil cooler outlet to pipe connection.
• Cracked or heat-aged EPDM hose material.
• Fitment issues caused by reused quick connectors or O-rings.
• Installation delays from hoses that require trimming or reshaping.
• Repeat cooling system repairs caused by mismatched replacement parts.

Installation Notes and Tips

Verify the vehicle application and hose routing before installation. CHE0203 is application-specific for the listed Volkswagen Passat and Audi A4 / A4 Quattro fitments, so confirm the oil cooler outlet to pipe configuration and compare the original hose assembly to the replacement part. Inspect mating surfaces, quick connectors, and seals during service to help ensure a proper seal.

Quality Assurance

Rein designs this coolant hose as an OE-quality replacement for European vehicles, with attention to original hose geometry and connector fit. The part is backed by a 24-month or 24,000-mile warranty.