Dorman 911-117 Engine Crankcase Vent Valve

Overview of Dorman Engine Crankcase Vent Valve 911-117

The Dorman 911-117 Engine Crankcase Vent Valve is designed for precise emission control in select BMW models. This valve helps maintain proper crankcase ventilation, supporting engine performance and emission standards for vehicles like the BMW 545i, 550i, 645Ci, 650i, 745i, 750i, and X5.

• Constructed with durable plastic, rubber, and steel materials for reliable operation
• Includes essential components: cap, diaphragm, and spring for complete functionality
• Standard replacement grade ensuring compatibility and performance
• Compatible with multiple BMW models including 545i, 550i, 645Ci, 650i, 745i, 750i, and X5
• OEM-quality fitment designed to meet factory specifications

Detailed Product Description

The Dorman 911-117 Engine Crankcase Vent Valve is a critical component in the emission control system, specifically within the crankcase ventilation system of various BMW vehicles. Made from a combination of plastic, rubber, and steel, this valve is engineered to withstand the demanding conditions of engine operation. The included cap, diaphragm, and spring work together to regulate crankcase pressure and prevent harmful gases from escaping into the atmosphere. This standard replacement part is designed to match the original equipment specifications, ensuring proper fit and function in BMW 545i, 550i, 645Ci, 650i, 745i, 750i, and X5 models.

Common Applications and Problem Resolution

• Helps reduce crankcase pressure buildup that can cause oil leaks
• Prevents excessive engine emissions by controlling blow-by gases
• Addresses rough idling or engine performance issues related to faulty ventilation
• Mitigates potential check engine light triggers related to emission control
• Supports overall engine longevity by maintaining proper ventilation flow

Installation Notes and Tips

When installing the Dorman 911-117 valve, ensure the engine is cool and the vehicle is parked on a level surface. Remove the old valve carefully to avoid damage to surrounding components. Verify that the new valve’s cap, diaphragm, and spring are intact and properly seated during installation. It is recommended to inspect related hoses and seals for wear and replace them if necessary to maintain system integrity. Follow manufacturer torque specifications and guidelines for secure mounting.

Quality Assurance and Warranty

Dorman provides this Engine Crankcase Vent Valve as a standard replacement part manufactured to meet or exceed OEM standards. The combination of plastic, rubber, and steel materials ensures durability and reliable performance under normal operating conditions. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s official documentation for exact warranty terms applicable to part number 911-117.