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Gates EMH300 Engine Crankcase Breather Hose - Oil Separator To PCV Valve
Overview of Gates Emission Control Hose EMH300
The Gates Emission Control Hose EMH300 is designed specifically for BMW 540i, 740i, and 740iL models. This engine crankcase breather hose ensures proper ventilation within the crankcase ventilation system, maintaining engine performance and emission standards.
- Constructed from durable steel and rubber materials
- Inside diameters of 1.01 inches (26 mm) and 0.58 inches (15 mm) for precise fitment
- Centerline length of 18.8 inches (478 mm) for accurate replacement
- Push-in end types on both ends for secure connection
- OE exact comparison rating for reliable OEM compatibility
Detailed Product Description
The EMH300 is part of the Gates Emission Control Hose product line, which focuses on components designed to manage and control engine emissions effectively. This hose is molded and constructed from a combination of steel and rubber, providing the necessary flexibility and strength to withstand engine bay conditions. With two different inside diameters (1.01 inches and 0.58 inches), it fits precisely within the crankcase ventilation system of select BMW models. The push-in end types on both ends facilitate straightforward installation and secure hose connections without the need for additional hardware.
Applications and Problem Solving
- Prevents crankcase pressure buildup by allowing proper ventilation
- Reduces harmful emissions by maintaining crankcase breather system integrity
- Eliminates vacuum leaks that can cause rough idling or engine performance issues
- Replaces worn or cracked hoses that may lead to oil leaks or contamination
- Ensures compliance with emission control standards for BMW 540i, 740i, and 740iL
Installation Notes and Tips
When installing the Gates EMH300 hose, ensure both push-in ends are fully seated to prevent leaks. The hose’s molded design allows for a direct replacement without modification. It is recommended to inspect surrounding components for wear or damage during installation. No additional hardware is required for installation, simplifying the replacement process.
Quality Assurance and Warranty
Gates maintains strict quality control standards for the Emission Control Hose line, including the EMH300. This part meets OE exact comparison ratings, ensuring it matches original equipment specifications for fit, form, and function. While specific warranty details are not provided, Gates products typically adhere to industry standards for durability and reliability.
| Brand | Gates |
| Part Number | EMH300 |
| Position | Emission Control Hose, Oil Separator To PCV Valve |
| Material | Steel, rubber |
| Inside Diameter | .58 |
| Inside Diameter | 1.01 |
| Inside Diameter | 15 |
| Inside Diameter | 26 |
| Centerline Length | 18.8 |
| Centerline Length | 478 |
| Hose Quantity | 1 |
| End Type | Push in |
| Branch Quantity | 0 |
| Protective Sleeve Included | No |
| Hardware Included | No |
| 9839 | Yes |
| 9845 | 0 |
| 9853 | No |
| Centerline Length (in) | 18.8 |
| Centerline Length (mm) | 478 |
| End 1 Type | Push in |
| End 2 Type | Push in |
| Hardware Included | No |
| Inside Diameter 1 (in) | 1.01 |
| Inside Diameter 1 (mm) | 26 |
| Inside Diameter 2 (in) | .58 |
| Inside Diameter 2 (mm) | 15 |
| Material | Steel, rubber |
| Molded | Yes |
| Number of Branches | 0 |
| Number of Hoses | 1 |
| Number of Quick Connectors | 0 |
| OE Comparison Rating | Oe exact |
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 To PCV Valve | Emission Control Hose |
| 2002 | BMW | 540i | 4.4L | V8 | GAS | Oil Separator To PCV Valve | Emission Control Hose |
| 2001 | BMW | 540i | 4.4L | V8 | GAS | Oil Separator To PCV Valve | Emission Control Hose |
| 2001 | BMW | 740i | 4.4L | V8 | GAS | Oil Separator To PCV Valve | Emission Control Hose |
| 2001 | BMW | 740iL | 4.4L | V8 | GAS | Oil Separator To PCV Valve | Emission Control Hose |
| 2000 | BMW | 540i | 4.4L | V8 | GAS | Oil Separator To PCV Valve | Emission Control Hose |
| 2000 | BMW | 740i | 4.4L | V8 | GAS | Oil Separator To PCV Valve | Emission Control Hose |
| 2000 | BMW | 740iL | 4.4L | V8 | GAS | Oil Separator To PCV Valve | Emission Control Hose |
| 1999 | BMW | 540i | 4.4L | V8 | GAS | Oil Separator To PCV Valve | Emission Control Hose |
| 1999 | BMW | 740i | 4.4L | V8 | GAS | Oil Separator To PCV Valve | Emission Control Hose |
| 1999 | BMW | 740iL | 4.4L | V8 | GAS | Oil Separator To PCV Valve | Emission Control Hose |
* 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.