Dorman 911-590 Engine Crankcase Vent Valve

Overview of Dorman Engine Crankcase Vent Valve 911-590

The Dorman 911-590 engine crankcase vent valve is designed for precise emission control in select BMW models. This replacement valve helps maintain proper crankcase ventilation, supporting engine performance and emission standards for BMW X5 and Z8 vehicles.

• Constructed with durable plastic, rubber, and steel materials for reliable operation
• Standard replacement grade ensuring compatibility and function
• Includes one crankcase vent valve per package
• Compatible with BMW X5 and Z8 models
• Part number 911-590 for accurate identification and fitment

Detailed Product Description

The Dorman 911-590 crankcase vent valve is engineered using a combination of plastic, rubber, and steel components to provide a balanced design that withstands engine bay conditions. The plastic body offers corrosion resistance, while the rubber seals ensure airtight connections to prevent leaks. Steel elements add structural integrity to the valve assembly. This part serves as a standard replacement, meeting OEM specifications for emission control systems in BMW X5 and Z8 models. Proper crankcase ventilation is critical to reducing harmful emissions and maintaining engine efficiency.

Compatible Vehicles and Applications

This engine crankcase vent valve is specifically compatible with BMW X5 and Z8 vehicles. When searching for a replacement part, referencing the Dorman part number 911-590 will help ensure correct fitment and function. This valve is a key component in the crankcase ventilation system, which manages blow-by gases and prevents pressure buildup inside the engine.

Common Issues Addressed by the Crankcase Vent Valve

• Excessive crankcase pressure causing oil leaks or seal damage
• Increased engine emissions due to improper ventilation
• Rough engine idle or performance issues related to vacuum leaks
• Check engine light triggered by emission control faults
• Oil contamination from blow-by gases not properly vented

Installation Notes and Tips

• Ensure engine is cool before beginning installation to avoid injury
• Inspect surrounding hoses and seals for wear and replace if necessary
• Use OEM or equivalent tools to avoid damage to valve or mounting points
• Verify proper seating of rubber seals to prevent vacuum leaks
• Consult vehicle service manual for torque specifications and removal procedures

Quality Assurance and Warranty Information

Dorman provides this crankcase vent valve as a standard replacement part manufactured to meet or exceed OEM standards. The combination of plastic, rubber, and steel materials is selected for durability and consistent performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to the product packaging or Dorman’s official documentation for exact warranty terms.