Rein CHE0581 Engine Coolant Hose - Expansion Tank (Upper)

Reliable Engine Coolant Hose for BMW Models

The Rein CHE0581 engine coolant hose is designed specifically for select BMW vehicles, including the 228i, 320i, 328i, and 428i series with xDrive and Gran Coupe variants. Engineered to meet SAE J20 R4D1 standards, this hose ensures a precise fit and dependable performance in your vehicle's cooling system.

Key Features of Rein CHE0581 Engine Coolant Hose

• Application-specific design reduces installation time
• No cutting, refitting, or adjusting required for a seamless fit
• Prevents leaks by eliminating reuse of old quick connectors
• Resistant to heat, salt, road debris, oil, and other contaminants
• Constructed from durable rubber material for long-lasting service
• Centerline length of 9.25 inches (23.495 cm) for accurate fitment
• Compatible with BMW 228i, 320i, 328i, and 428i models including xDrive and Gran Coupe

Detailed Product Description

The Rein CHE0581 engine coolant hose is a single rubber hose designed to maintain optimal coolant flow within the engine cooling system of specific BMW models. Its black color and precise dimensions—including a 0.36-inch inside diameter on one end and 0.65-inch on the other—ensure compatibility with factory connections. Manufactured in Turkey, this hose meets SAE J20 R4D1 industry standards, providing resistance against heat, oil, salt, and road debris. The hose’s design eliminates the need for cutting or adjustments during installation, reducing labor time and minimizing the risk of leaks caused by improper fitting or reused connectors.

Common Applications and Issues Addressed

• Replacement of worn or cracked engine coolant hoses in BMW 228i, 320i, 328i, and 428i models
• Prevention of coolant leaks that can lead to engine overheating
• Elimination of issues caused by damaged or deteriorated quick connectors
• Restoration of proper coolant flow to maintain engine temperature regulation
• Mitigation of hose failure due to exposure to heat, oil, and road contaminants

Installation Notes and Tips

• Designed for direct fitment—no cutting or modification needed
• Inspect and replace old quick connectors to prevent leaks
• Ensure all clamps are securely tightened to factory specifications
• Verify hose routing matches OEM configuration to avoid kinks or stress points
• Allow engine to cool before removing old hose to prevent injury

Quality Assurance and Warranty

Rein manufactures the CHE0581 engine coolant hose to meet stringent quality standards, including SAE J20 R4D1 compliance. The hose is constructed from durable rubber materials to withstand harsh operating conditions. While specific warranty details are not provided, Rein products typically adhere to industry quality assurance protocols to ensure reliable performance and durability in BMW 228i, 320i, 328i, and 428i vehicles.