Gates EMH203 Engine Crankcase Breather Hose - PCV Valve To Intake

Reliable Engine Crankcase Breather Hose for GM Vehicles

The Gates EMH203 Engine Crankcase Breather Hose is designed to maintain proper ventilation in the crankcase system of select Buick, Chevrolet, Oldsmobile, and Pontiac models. Engineered with durable plastic and rubber materials, this hose supports efficient emission control and engine performance.

• Constructed from high-quality plastic and rubber for durability
• Multiple inside diameters including 0.25, 0.31, 0.33, 6, 8, and 8.5 inches for precise fitment
• Centerline length of 15.25 inches (387 mm) ensures proper routing
• Push-in end type for secure and easy connection
• OE exact comparison rating for reliable replacement
• Single hose with one branch for crankcase ventilation

About the Gates Emission Control Hose Product Line

The Gates Emission Control Hose line focuses on components that support vehicle emission systems, including crankcase ventilation. These hoses are designed to meet or exceed original equipment specifications, providing consistent performance and durability. The EMH203 is part of this line, ensuring compatibility and quality for emission control applications in GM vehicles.

Detailed Product Description

The EMH203 Engine Crankcase Breather Hose is engineered to facilitate the proper flow of gases from the engine crankcase to the intake system, helping reduce emissions and maintain engine efficiency. Its construction from plastic and rubber materials offers resistance to heat, oil, and other engine contaminants. The hose features multiple inside diameters to accommodate specific connection points, with a centerline length of 15.25 inches (387 mm) to fit routing requirements. The push-in end type allows for straightforward installation without additional clamps or hardware. This hose is designed as a direct OE replacement, ensuring a precise fit for Buick Alero, Chevrolet Impala, Malibu, Monte Carlo, and other compatible models.

Common Applications and Issues Addressed

• Prevents crankcase pressure buildup that can cause oil leaks
• Reduces harmful emissions by maintaining proper ventilation
• Eliminates vacuum leaks that affect engine performance
• Replaces cracked or hardened breather hoses to restore airflow
• Supports compliance with emission control regulations

Installation Notes and Tips

Ensure the engine is cool before beginning installation. Verify the hose routing matches the original configuration to avoid kinks or restrictions. The push-in end type allows for a secure connection without additional clamps, but inspect the hose ends and fittings for damage before installation. Replace any worn or damaged components in the crankcase ventilation system to maintain optimal function.

Quality Assurance and Warranty

The Gates EMH203 meets OE exact comparison ratings, ensuring it matches original equipment specifications for fit and function. Manufactured with quality materials, this hose supports long-term durability in emission control applications. Warranty details should be confirmed with the product documentation or supplier.