GATES EMH191 Engine Crankcase Breather Hose Emission Control 770075845027

( Brand: Gates ), ( Manufacturer Part Number: EMH191 ), ( Type: Engine Crankcase Breather Hose ), ( Manufacturer Warranty: Other ), ( UPC: 770075845027 )

Review GATES Engine Crankcase Breather Hose emission Control

The **Gates EMH191 Engine Crankcase Breather Hose Emission Control Hose** is a precision-engineered, high-performance replacement part designed to maintain optimal engine efficiency, reduce emissions, and protect critical components in modern internal combustion engines. Crafted from durable, heat-resistant synthetic rubber with a reinforced internal braid, this hose is engineered to withstand the demanding conditions of high-temperature exhaust gases, vacuum fluctuations, and mechanical stress encountered in crankcase ventilation systems. Its robust construction ensures long-lasting durability, minimizing the risk of premature failure, leaks, or degradation, which can lead to costly engine damage or increased emissions. The EMH191 is specifically tailored to fit a wide range of automotive applications, including performance and high-mileage vehicles, where proper crankcase breather function is essential for maintaining proper oil pressure, preventing blow-by gases from entering the intake system, and reducing carbon buildup on intake valves. This hose also plays a crucial role in meeting emission standards by ensuring that harmful gases are properly routed away from the engine bay, contributing to cleaner exhaust output. With its tight tolerances and reliable sealing properties, the Gates EMH191 provides a seamless fit, reducing the likelihood of air leaks that could compromise engine performance or trigger check engine lights. Whether used in original equipment applications or as a high-quality aftermarket replacement, this hose exemplifies Gates commitment to quality, performance, and environmental responsibility, making it an indispensable component for maintaining engine health and compliance with modern emissions regulations.

### **Pros and Cons of buying a Gates EMH191 Engine Crankcase Breather Hose (Emission Control Hose)**

The Gates EMH191 crankcase breather hose is a widely recommended replacement part for many engines, particularly those in older vehicles with emission control systems. Here are the key advantages:

1. **High Quality and Durability** Gates is a well-known manufacturer of automotive hoses, known for producing parts that meet or exceed OEM specifications. The EMH191 is designed to withstand engine heat, oil vapors, and vacuum fluctuations without degrading quickly.

2. **OEM Fitment** This hose is engineered to match the original equipment manufacturer (OEM) specifications, ensuring a proper seal and connection to the crankcase breather and PCV (Positive Crankcase Ventilation) system. This helps maintain proper engine breathing and reduces oil consumption.

3. **Emission Control Compliance** The crankcase breather system plays a crucial role in reducing harmful emissions by recirculating oil vapors back into the engine rather than releasing them into the atmosphere. A faulty hose can lead to increased emissions, potential failure of emissions tests, or even damage to catalytic converters.

4. **Prevents Engine Contamination** A failing breather hose can allow oil vapors and debris to enter the intake system, leading to carbon buildup on intake valves, spark plugs, and combustion chambers. Replacing it with a Gates EMH191 helps maintain clean engine components and improves performance.

5. **Easy Installation** The hose is designed for straightforward replacement, typically requiring only basic tools. Many users report that it fits securely without requiring modifications, making it a convenient upgrade.

6. **Compatibility with Common Engines** While the EMH191 is often used in older vehicles (such as those from the 1980s 2000s), it is also compatible with certain modern engines that use similar crankcase breather systems. Always verify compatibility with your specific vehicle model before purchasing.

7. **Cost-Effective Solution** Compared to the potential cost of repairing emission-related issues or engine damage caused by a failing breather hose, replacing it with a Gates EMH191 is a relatively inexpensive preventive measure.

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1. **Limited Compatibility** Not all vehicles use the exact same crankcase breather system. Some engines may require a different length, diameter, or connection type. Always check your vehicle s service manual or consult a trusted mechanic to confirm compatibility before purchasing.

2. **Potential for Counterfeit Parts** Gates is a well-known brand, which makes it a target for counterfeiters. Purchasing from unauthorized sellers or marketplaces with poor reviews may result in receiving a low-quality or incorrect part. Buying from reputable dealers, official Gates distributors, or trusted online retailers (such as Amazon, RockAuto, or local auto parts stores) reduces this risk.

3. **Installation Challenges in Some Vehicles** While the EMH191 is generally easy to install, certain engine bay layouts or tight spaces may make replacement difficult for inexperienced DIYers. Improper installation (e.g., kinking the hose or failing to secure clamps properly) can lead to leaks or reduced effectiveness.

4. **Wear Over Time** Like any rubber hose, the EMH191 will eventually degrade due to heat, oil exposure, and engine vibrations. While Gates hoses are durable, they are not designed to last indefinitely and may need replacement every 50,000 100,000 miles, depending on driving conditions.

5. **Price Sensitivity** Gates hoses are premium parts and may be more expensive than generic or aftermarket alternatives. While the quality justifies the cost for many users, budget-conscious buyers might opt for cheaper options, though these may not last as long or fit as securely.

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The Gates EMH191 engine crankcase breather hose is an excellent choice for vehicles requiring a reliable, OEM-spec replacement part. Its high quality, durability, and role in maintaining emission compliance and engine health make it a strong recommendation for most drivers. However, it is essential to verify compatibility with your specific vehicle and purchase from a trusted source to avoid counterfeit or incorrect parts.

For most older vehicles (particularly those with PCV systems) or engines prone to oil vapor leaks, the EMH191 is a worthwhile investment. If you are unsure about compatibility or installation, consulting a mechanic can help ensure you select the right part and perform the replacement correctly.

- Your vehicle s service manual or emissions system diagram confirms it is the correct part.

- You purchase it from an authorized dealer or a reputable online retailer.

- You are comfortable with basic DIY maintenance or have access to a mechanic for installation.

- You have verified that they meet your vehicle s specifications.

- You are on a tight budget and can accept a potentially shorter lifespan.

- You are confident in the seller s reputation to avoid counterfeit parts.

Ultimately, replacing a failing crankcase breather hose with a Gates EMH191 is a proactive step to protect your engine, improve performance, and ensure compliance with emissions regulations.

Details:

Information like which side a part fits LEFT or RIGHT and specific vehicle attributes Transmission, AWD/RWD, other exclusions are included for your information in this LEFT COLUMN. Engine Crankcase Breather Hose. This part fits vehicles made in the following years 2011 ,2012,2013,20 14,2015,2016,2017,2018,2019,2020,2021,2022,2023.

The image USUALLY shows all the pieces and qty included with part. Get the maximum service life out of your emission hose by using Gates' solutions. FINISH MATERIAL COLOR shown in the listing image will often vary from actual part shipped. This replacement hose e. Actively restores the emission system to desired operation and performance.

part #: emh191 prices

• $31.99-$55.99

specifications emissyste:

• brand: Gates
• mpn: Emh191
• type: Engine Crankcase Breather Hose
• manufacturer warranty: Other
• upc: 770075845027

payments emissyste:

• other
• credit card: Discover
• wallet: Paypal

general emissyste:

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

seller emissyste:

• city: Santa Fe Springs, California
• rating: 99.6%
• # reviews: 22573

returns emissyste:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

shipping emissyste:

• type: Fixed
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• transit: 5-12 Days
• cost: $20.00

offer emissyste:

• quantity: 4
• sold: 0
• started: May 29, 2026
• options: Ship-to-home
• availability: In Stock

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