Dorman 46045 PCV Valve Hose

Durable PCV Valve Hose for BMW Models

The Dorman 46045 PCV valve hose is designed to maintain proper crankcase ventilation in select BMW vehicles. Constructed from high-quality plastic, this breather hose ensures reliable performance and a precise fit for various BMW models including the 3 Series, 5 Series, X3, X5, Z3, and Z4.

• Material: Durable plastic construction for long-lasting use
• Length: 4.75 inches for accurate fitment
• Inside Diameter: 1.25 inches to match OEM specifications
• Hose End Inside Diameter: 1.25 inches (both ends)
• Package includes one breather hose

Product Details and Specifications

The Dorman 46045 PCV valve hose is engineered to meet the exact dimensions required for proper crankcase ventilation system operation. With a length of 4.75 inches and an inside diameter of 1.25 inches on both hose ends, this plastic hose provides a secure connection between the PCV valve and the intake manifold. Its compatibility with multiple BMW models such as the 323Ci, 325i, 328i, 330i, 525i, 530i, X3, X5, Z3, and Z4 ensures it can be used for various engine configurations within these series.

Compatible BMW Models and Applications

This PCV valve hose is compatible with a range of BMW vehicles, including:

• BMW 3 Series: 323Ci, 323i, 325Ci, 325i, 325xi, 328Ci, 328i, 330Ci, 330i, 330xi
• BMW 5 Series: 525i, 528i, 530i
• BMW SUVs and Roadsters: X3, X5, Z3, Z4

Common Issues Addressed by the PCV Valve Hose

• Prevents crankcase pressure buildup that can cause oil leaks
• Maintains proper ventilation to reduce engine emissions
• Helps avoid rough idling caused by vacuum leaks
• Reduces risk of engine performance issues related to faulty breather hoses
• Prevents contamination of the intake system with oil vapors

Installation Notes and Tips

When installing the Dorman 46045 PCV valve hose, ensure the hose is securely connected at both ends with no kinks or bends that could restrict airflow. Verify the inside diameter matches the PCV valve and intake manifold fittings to prevent vacuum leaks. It is recommended to inspect related components such as the PCV valve and grommets during installation for optimal system performance.

Quality Assurance and Warranty

Dorman manufactures the 46045 PCV valve hose to meet or exceed OEM standards for fit, form, and function. The plastic material is selected for durability and resistance to heat and chemical exposure typical in engine compartments. While specific warranty details may vary, Dorman products generally come with a limited warranty against defects in material and workmanship to provide confidence in the replacement part.