Dorman 911-899 Engine Crankcase Vent Valve

Overview of Dorman Engine Crankcase Vent Valve 911-899

The Dorman 911-899 Engine Crankcase Vent Valve is designed as a standard replacement part for BMW vehicles, specifically compatible with the 540i, 740i, and 740iL models. Constructed from durable plastic, this valve helps maintain proper crankcase ventilation to support engine performance and emissions control.

• Material: High-quality plastic construction for durability
• Item Grade: Standard replacement part meeting OEM specifications
• Package Contents: Includes cover assembly for straightforward installation
• Compatible with BMW 540i, 740i, and 740iL models
• Part Number: 911-899 for precise identification and fitment

Detailed Product Description

The Dorman 911-899 Engine Crankcase Vent Valve plays a critical role in the emission control system by regulating the flow of gases from the engine crankcase. Made from plastic, this valve is engineered to withstand typical engine bay conditions while providing reliable performance. As a standard replacement, it meets the necessary specifications to ensure proper fit and function in BMW 540i, 740i, and 740iL vehicles. The included cover assembly simplifies the replacement process, reducing installation time and effort.

Common Applications and Issues Addressed

• Helps prevent excessive crankcase pressure buildup
• Reduces harmful emissions by controlling crankcase gases
• Mitigates oil leaks caused by faulty ventilation
• Improves engine efficiency by maintaining proper ventilation
• Addresses rough idling or engine performance issues related to crankcase ventilation

Installation Notes and Tips

Installation of the Dorman 911-899 valve should be performed with the engine cool to avoid injury. Ensure the old valve and cover assembly are fully removed before installing the new part. Verify that all connections are secure to prevent vacuum leaks. Refer to the vehicle’s service manual for torque specifications and detailed procedures specific to BMW 540i, 740i, and 740iL models.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and fitment. The 911-899 Engine Crankcase Vent Valve undergoes quality checks to ensure durability and function. This part is backed by Dorman’s limited warranty, covering defects in material and workmanship under normal use.