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Gates EMH921 Engine Crankcase Vent Valve - Oil Separator
Overview of Gates Crankcase Vent Valve EMH921
The Gates Crankcase Vent Valve EMH921 is designed to maintain proper crankcase ventilation in select BMW models. Engineered with durable plastic and featuring dual hose connectors, this valve supports efficient oil separation and emission control.
- Constructed from high-quality plastic for durability
- Two hose connectors for secure attachment
- Inside diameters of 0.7 inches (18 mm) and 0.26 inches (7 mm) for precise fitment
- Includes an integrated oil separator to reduce emissions
- Compatible with BMW 540i, 740i, and 740iL models
Detailed Product Description
The Gates Crankcase Vent Valve EMH921 is part of the Crankcase Vent Valve product line, which focuses on controlling crankcase pressure and reducing harmful emissions. This engine crankcase vent valve is made from plastic, ensuring resistance to corrosion and heat within the engine bay. It features two hose connectors with inside diameters of 0.7 inches (18 mm) and 0.26 inches (7 mm), allowing for a secure and precise connection to the crankcase ventilation system. The integrated oil separator helps to trap oil vapors, preventing them from entering the intake system and reducing engine deposits.
Compatible Vehicles and Applications
This crankcase vent valve is specifically designed for use in BMW vehicles, including the 540i, 740i, and 740iL models. The part number EMH921 ensures exact fitment and compatibility with these models, supporting proper engine ventilation and emission control.
- Prevents excessive crankcase pressure buildup
- Reduces oil vapor contamination in the intake system
- Helps maintain engine performance and efficiency
- Supports compliance with emission regulations
- Minimizes engine oil leaks and sludge formation
Installation Notes and Tips
When installing the Gates Crankcase Vent Valve EMH921, ensure that the hose connectors match the specified inside diameters of 0.7 inches (18 mm) and 0.26 inches (7 mm) for a proper seal. Inspect the surrounding hoses and connections for wear or damage before installation. Proper routing of hoses is essential to maintain effective ventilation and prevent vacuum leaks.
Quality Assurance and Warranty
Gates is a recognized manufacturer in the automotive industry, known for producing reliable emission control components. The Crankcase Vent Valve EMH921 is manufactured to meet OEM specifications for fit and function. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in materials and workmanship.
| Brand | Gates |
| Part Number | EMH921 |
| Position | Crankcase Vent Valve, Oil Separator |
| Material | Plastic |
| Inside Diameter | .26 |
| Inside Diameter | .7 |
| Inside Diameter | 18 |
| Inside Diameter | 7 |
| Hose Connector Quantity | 2 |
| Contents | Oil separator |
| Inside Diameter 1 (in) | .7 |
| Inside Diameter 1 (mm) | 18 |
| Inside Diameter 2 (in) | .26 |
| Inside Diameter 2 (mm) | 7 |
| Material | Plastic |
| Number of Hose Connectors | 2 |
This part fits 11 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2003 | BMW | 540i | 4.4L | V8 | GAS | Oil Separator | Crankcase Vent Valve |
| 2002 | BMW | 540i | 4.4L | V8 | GAS | Oil Separator | Crankcase Vent Valve |
| 2001 | BMW | 540i | 4.4L | V8 | GAS | Oil Separator | Crankcase Vent Valve |
| 2001 | BMW | 740i | 4.4L | V8 | GAS | Oil Separator | Crankcase Vent Valve |
| 2001 | BMW | 740iL | 4.4L | V8 | GAS | Oil Separator | Crankcase Vent Valve |
| 2000 | BMW | 540i | 4.4L | V8 | GAS | Oil Separator | Crankcase Vent Valve |
| 2000 | BMW | 740i | 4.4L | V8 | GAS | Oil Separator | Crankcase Vent Valve |
| 2000 | BMW | 740iL | 4.4L | V8 | GAS | Oil Separator | Crankcase Vent Valve |
| 1999 | BMW | 540i | 4.4L | V8 | GAS | Oil Separator | Crankcase Vent Valve |
| 1999 | BMW | 740i | 4.4L | V8 | GAS | Oil Separator | Crankcase Vent Valve |
| 1999 | BMW | 740iL | 4.4L | V8 | GAS | Oil Separator | Crankcase Vent Valve |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.