GATES EMH300 Engine Crankcase Breather Hose Emission Control 770075810612

( Brand: Gates ), ( Manufacturer Part Number: EMH300 ), ( Type: Engine Crankcase Breather Hose ), ( UPC: 770075810612 )

Review GATES Engine Crankcase Breather Hose emission Control

The **Gates EMH300 Engine Crankcase Breather Hose Emission Control Hose** is a high-performance, precision-engineered component designed to maintain optimal airflow and emissions control within modern internal combustion engines. Crafted from durable, heat-resistant **synthetic rubber compound**, this hose is engineered to withstand the demanding conditions of high-temperature environments, aggressive chemical exposure, and constant flexing under engine vibration, ensuring long-term reliability and leak-free operation. The EMH300 features a **reinforced spiral wire braid** embedded within its walls, providing exceptional resistance to kinking, crushing, and collapse, which is critical for maintaining consistent airflow and preventing harmful crankcase gases from escaping into the atmosphere. This hose is specifically tailored for emission control systems, helping to reduce hydrocarbon and particulate emissions by efficiently routing blow-by gases back into the intake manifold for combustion, thereby improving engine efficiency and compliance with stringent environmental regulations.

Constructed with **OEM-grade materials**, the Gates EMH300 delivers superior durability compared to standard rubber hoses, resisting oil, fuel, and coolant degradation while maintaining flexibility across a broad temperature range typically from **-40 F to 257 F** making it ideal for both light-duty and heavy-duty applications. Its **smooth, seamless interior** minimizes airflow restriction, ensuring optimal engine breathing and reducing the risk of carbon buildup or clogging, which can impair performance over time. The hose s **precise fitment** is achieved through careful calibration of its diameter and length, allowing for easy installation on a wide range of engines, including those equipped with **positive crankcase ventilation (PCV) systems, oil separation systems, or advanced turbocharged setups**. Whether used in automotive, marine, or industrial applications, the EMH300 serves as a critical component in preserving engine health, extending component lifespan, and adhering to emissions standards without compromising on performance or safety.

### **Pros and Cons of buying a Gates EMH300 Engine Crankcase Breather Hose (Emission Control Hose)**

The Gates EMH300 crankcase breather hose is a widely recognized aftermarket replacement part designed for emissions control systems in vehicles. Here are its key advantages:

1. **High Quality and Durability** Gates is a reputable manufacturer known for producing reliable automotive hoses and filters. The EMH300 is made from high-grade materials that resist cracking, kinking, and oil contamination over time, which helps maintain engine performance and longevity.

2. **OEM-Level Performance** This part is designed to meet or exceed original equipment manufacturer (OEM) specifications. It ensures proper crankcase ventilation, reducing blow-by gases and preventing oil leaks or carbon buildup in the intake system.

3. **Compatibility with Emissions Systems** The hose is specifically engineered to work with positive crankcase ventilation (PCV) and other emission control systems. This helps vehicles pass emissions tests and reduces harmful exhaust emissions.

4. **Easy Installation** The EMH300 is typically a straightforward replacement part, requiring minimal tools and time to install. It often comes with clear instructions or fits standard connectors, making it accessible for DIY enthusiasts.

5. **Cost-Effective Solution** Compared to OEM replacements, the Gates EMH300 is usually more affordable while still providing reliable performance. This makes it a practical choice for budget-conscious consumers.

6. **Reduces Engine Wear** Proper crankcase ventilation helps prevent oil dilution and carbon buildup in the intake manifold, which can improve engine efficiency and reduce long-term wear.

7. **Widely Available** As a popular aftermarket part, the EMH300 is easy to find in auto parts stores, online retailers, and through Gates official channels, ensuring quick availability.

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1. **Potential Fitment Issues** Although Gates provides compatibility lists, some vehicles may require additional adapters or modifications due to slight variations in hose routing or connector types. Always verify fitment before purchasing.

2. **Quality Variability in Counterfeit Parts** Due to its popularity, some cheaper knockoff versions may circulate in the market. These may fail prematurely or not meet the same quality standards as the genuine Gates product. Purchasing from authorized dealers or reputable retailers helps mitigate this risk.

3. **Limited Longevity Compared to OEM Parts** While durable, aftermarket hoses may not last as long as OEM parts in high-mileage or extreme-temperature environments. Regular inspection is recommended, especially in vehicles with aggressive driving habits.

4. **Compatibility with Modern Emissions Systems** Some newer vehicles with advanced emissions controls (e.g., turbocharged or direct-injection engines) may require specialized hoses. The EMH300 may not be suitable for all modern applications, so research is essential.

5. **Installation Challenges in Tight Spaces** Depending on the vehicle s engine bay layout, installing the hose may require careful maneuvering, especially if other components (e.g., belts, brackets) are in the way.

6. **Price Sensitivity** While generally affordable, some consumers may find the cost slightly higher than the cheapest generic alternatives. However, the trade-off in quality often justifies the expense.

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The Gates EMH300 crankcase breather hose is a reliable, high-quality replacement part that offers significant benefits for vehicles requiring proper crankcase ventilation and emissions control. Its durability, compatibility with emissions systems, and ease of installation make it a strong choice for both DIYers and professional mechanics. However, potential drawbacks such as fitment concerns, the risk of counterfeit products, and limited suitability for some modern engines should be carefully considered.

For most applications particularly in older or high-mileage vehicles where emissions compliance and engine protection are priorities the EMH300 is an excellent investment. If in doubt about fitment or compatibility, consulting a mechanic or verifying the part s specifications against your vehicle s requirements is advisable.

If you need a replacement crankcase breather hose for your vehicle and are confident in the Gates EMH300 s compatibility, this is a highly recommended purchase. To ensure the best results:

- **Verify fitment** by checking Gates compatibility list or consulting your vehicle s service manual.

- **Purchase from an authorized dealer or trusted retailer** to avoid counterfeit products.

- **Inspect the installation** for proper sealing and routing to prevent leaks or improper ventilation.

- **Monitor the hose periodically** for signs of wear, especially in vehicles with high mileage or extreme operating conditions.

For vehicles with complex emissions systems or those requiring specialized hoses, consider consulting a professional to confirm the best replacement option. Overall, the Gates EMH300 is a dependable choice for maintaining engine health and emissions compliance.

Details:

Engine Crankcase Breather Hose. 911-114, EMH300. Get the maximum service life out of your emission hose by using Gates' solutions. This part fits vehicles made in the following yea rs 1999 ,2000,2001,2002,2003.

This replacement hose e. Actively restores the emission system to desired operation and performance.

part #: emh300 prices

• $39.13-$73.99

specifications emissyste:

• brand: Gates
• mpn: Emh300
• type: Engine Crankcase Breather Hose
• upc: 770075810612

payments emissyste:

• credit card: Mastercard
• wallet: Google-pay
• other

general emissyste:

• Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts
• condition: New

seller emissyste:

• city: Brooklyn, New York
• # reviews: 861
• rating: 99.7%

offer emissyste:

• sold: 0
• started: March 17, 2026
• quantity: 2
• availability: In Stock
• options: Ship-to-home

returns emissyste:

• paid by: Seller
• time: 60 Days
• policy: Returns Accepted

shipping emissyste:

• class: Standard
• cost: $20.00
• service: Standard
• type: Fixed
• transit: 3-8 Days

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