Gates EMH138 Engine Crankcase Breather Hose - Valve Cover To Oil Separator

Overview of Gates Emission Control Hose EMH138

The Gates Emission Control Hose EMH138 is designed for precise fitment and reliable performance in BMW vehicles. Engineered with durable plastic and rubber materials, this engine crankcase breather hose supports proper ventilation in models such as the BMW 323i, 325i, 330i, 525i, and Z4.

• Material: Plastic and rubber construction for durability
• Inside diameter: 0.625 inches (16 mm)
• Centerline length: 12 inches (304 mm)
• End type: Clip on connectors on both ends
• Includes protective sleeve for added hose protection
• OE exact comparison rating for direct replacement
• Compatible with BMW 323i, 325i, 325xi, 330i, 330xi, 525i, 525xi, 530i, 530xi, and Z4 models

About the Gates Emission Control Hose Product Line

The Gates Emission Control Hose line focuses on components that maintain proper crankcase ventilation and emission control system integrity. This product line ensures hoses meet OEM specifications for fit and function, helping to reduce emissions and maintain engine performance. The EMH138 hose is molded and designed to provide a secure clip-on connection, supporting emission control systems in various BMW models.

Detailed Product Description

The EMH138 engine crankcase breather hose from Gates is molded from a combination of plastic and rubber materials, providing flexibility and resistance to heat and chemical exposure typical in engine compartments. With a consistent inside diameter of 0.625 inches (16 mm) and a centerline length of 12 inches (304 mm), this hose is engineered for exact fitment. Both ends feature clip-on connectors, allowing for secure attachment without additional hardware. The included protective sleeve enhances durability by shielding the hose from abrasion and environmental damage. This single hose unit is designed to replace original equipment in BMW models including the 323i, 325i, 330i, 525i, and Z4, ensuring proper crankcase ventilation and emission control.

Common Applications and Issues Addressed

• Prevents crankcase pressure buildup by allowing proper ventilation
• Reduces harmful emissions by maintaining emission control system integrity
• Eliminates vacuum leaks caused by cracked or worn hoses
• Prevents oil vapor leaks that can cause engine performance issues
• Helps maintain engine efficiency and reduce check engine light triggers related to PCV system faults

Installation Notes and Tips

• Ensure engine is cool before installation to avoid injury
• Remove old hose carefully to avoid damaging connectors or surrounding components
• Verify clip-on ends are securely attached to prevent vacuum leaks
• Inspect protective sleeve for proper positioning to maximize hose protection
• Check for any signs of wear or damage on adjacent components during installation

Quality Assurance and Warranty

The Gates Emission Control Hose EMH138 meets OE exact comparison standards, ensuring compatibility and performance consistent with original equipment. Manufactured with high-quality materials and molded construction, this hose is designed for durability and long service life. While specific warranty details are not provided, Gates products typically adhere to stringent quality control processes to support reliable operation in emission control systems.