GATES EMH004 Engine Crankcase Breather Hose

( Brand: Gates ), ( Manufacturer Part Number: EMH004 ), ( Manufacturer Warranty: 90 Day ), ( Type: Engine Crankcase Breather Hose )

Review GATES Engine Crankcase Breather Hose

The **Gates EMH004 Engine Crankcase Breather Hose** is a high-performance, precision-engineered component designed to maintain optimal airflow and pressure balance within an engine s crankcase system. Crafted from durable, heat-resistant rubber with a reinforced internal braid, this breather hose ensures reliable operation under extreme conditions, making it an ideal choice for both performance enthusiasts and professional mechanics seeking long-lasting reliability. The hose features a tight-fitting, interference-fit design that minimizes leaks while allowing for smooth, unrestricted airflow, which is critical for preventing oil contamination and maintaining proper crankcase pressure. Its robust construction resists cracking, kinking, and degradation from engine heat, oil splatter, and vibration, ensuring consistent performance even in high-stress applications like forced induction setups or heavy-duty engines. The EMH004 is engineered to fit seamlessly with modern engine designs, offering a secure connection to intake manifolds, oil separators, or PCV (Positive Crankcase Ventilation) systems, reducing the risk of oil leaks and improving overall engine efficiency. Whether installed in a stock or modified engine, this breather hose delivers a balance of durability, flexibility, and performance, making it a trusted upgrade for maintaining engine health and longevity.

### **Pros and Cons of buying a Gates EMH004 Engine Crankcase Breather Hose**

1. **Compatibility and Fit:** The Gates EMH004 is designed specifically for certain engine applications, ensuring a proper fit without the need for modifications. This reduces the risk of leaks or improper installation, which can lead to engine contamination or performance issues.

2. **Durability and Quality:** Gates is a well-known manufacturer of automotive parts, particularly in filtration and ventilation systems. Their products are generally built to last, using materials that resist cracking, hardening, or degradation over time, even under high temperatures and engine stress.

3. **Prevents Engine Contamination:** A properly functioning crankcase breather hose helps regulate pressure within the engine s crankcase. It allows gases to escape while preventing oil and debris from entering the intake system, which can foul spark plugs, clog air filters, or damage internal components.

4. **Reduces Oil Consumption:** By maintaining proper crankcase pressure, the breather hose helps minimize oil consumption and leaks, which can be costly and harmful to engine longevity.

5. **Easy Installation:** The hose is typically straightforward to install, requiring minimal tools and time. Many users report that it fits seamlessly into existing systems without requiring additional adapters or modifications.

6. **Cost-Effective:** While not the cheapest part on the market, the Gates EMH004 is reasonably priced compared to OEM replacements. It offers a balance between affordability and reliability, making it a practical choice for many vehicle owners.

7. **Widely Available:** As a common replacement part, the Gates EMH004 is easy to find in auto parts stores, online retailers, and through aftermarket suppliers. This ensures quick availability if you need to replace it unexpectedly.

---

1. **Potential for Counterfeit Products:** Like many aftermarket parts, the Gates EMH004 may have counterfeit or low-quality imitations available, particularly from untrusted sellers. These fakes can fail prematurely or not fit correctly, leading to further issues.

2. **Limited Lifespan:** While Gates parts are durable, the crankcase breather hose is still a wear item. Over time, it may degrade due to exposure to heat, oil, and engine byproducts. Some users report needing to replace it every few years, depending on driving conditions.

3. **Compatibility Issues with Modified Engines:** If your engine has been modified (e.g., turbocharged, supercharged, or tuned), the stock breather hose may not handle the increased pressure or airflow demands. In such cases, a more robust or specialized breather system might be required.

4. **Installation Challenges:** While generally easy, some users may find the installation tricky if they lack mechanical experience. Improper installation such as twisting or kinking the hose can lead to restricted airflow or leaks.

5. **Price Sensitivity:** For budget-conscious buyers, the Gates EMH004 may be slightly more expensive than generic or no-name alternatives. However, the trade-off is often worth it for reliability.

6. **Environmental Concerns:** The crankcase breather hose is part of an emissions system. If it fails, it could allow harmful gases to bypass filtration, contributing to air pollution. However, this is more of a systemic issue than a flaw with the specific part.

7. **Limited Warranty:** Gates typically offers a limited warranty on their parts, but coverage may vary by retailer. If the hose fails prematurely due to a manufacturing defect, you may need to rely on the seller s return policy rather than a formal warranty.

---

The Gates EMH004 engine crankcase breather hose is a reliable and widely trusted replacement part for many vehicles. Its strengths lie in its compatibility, durability, and effectiveness in maintaining engine health by preventing contamination and pressure buildup. For most standard applications, it offers a cost-effective solution without requiring significant modifications.

However, potential drawbacks include the risk of counterfeit products, the need for periodic replacement, and compatibility concerns with heavily modified engines. If you prioritize quality and longevity, the Gates EMH004 is a solid choice, provided you purchase it from a reputable source and ensure proper installation.

---

If you are replacing a worn or damaged crankcase breather hose in a stock or lightly modified engine, **the Gates EMH004 is highly recommended**. Purchase it from a trusted auto parts retailer (such as AutoZone, O Reilly, or a reputable online store like Amazon or RockAuto) to avoid counterfeit products. Follow the manufacturer s installation guidelines carefully to ensure optimal performance.

For turbocharged or highly modified engines, consider consulting a mechanic or checking for engine-specific breather systems that can handle increased pressure. Regularly inspect the hose for cracks, hardening, or leaks to address any issues before they lead to more serious engine problems.

Details:

Engine Crankcase Breather Hose. This part fits vehicles made in the following years 2016 ,2017,2018,2019,2020,2021,2022,2023. 1713159B0 EMH004.

part #: emh004 prices

• $11.21-$29.99

specifications emissyste:

• brand: Gates
• mpn: Emh004
• manufacturer warranty: 90 Day
• type: Engine Crankcase Breather Hose

shipping emissyste:

• transit: 3-7 Days
• cost: $0.00
• type: Fixed
• service: Standard
• class: Standard

general emissyste:

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

payments emissyste:

• cash
• other
• wallet: Paypal
• credit card: Discover
• check
• money order

offer emissyste:

• availability: In Stock
• quantity: 3
• sold: 0
• started: March 24, 2026
• options: Ship-to-home

seller emissyste:

• rating: 99.5%
• city: Carson, California
• # reviews: 25251

returns emissyste:

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

Gates EMH004 Is Similar To:

• 27004 Gates Crankcase Vent Hose (62.2% similar) ...(March 28th, 2017)
• 27482 Gates Nylon Air Hose (40.6% similar) If your looking to increase gas mileage, get better engine performance, or help the environment 123AUTOPARTS on motors is place buy now...(November 11th, 2018)
• Emh107 Gates New Engine Crankcase Breather Hose 770075689553 (71.8% similar) Vehicles sold outside of the USA may be different, even if they have same make and model name. Shipping labels may only be applied to a separate, outer box...(May 30th, 2018)
• Emh115 Gates New Engine Crankcase 770075623809 (53.9% similar) Vehicles sold outside of the USA may be different, even if they have same make and model name. Shipping labels may only be applied to a separate, outer box...(December 29th, 2017)
• Emh117 Gates New Engine Crankcase Breather Hose 770075681458 (71.8% similar) Shipping labels may only be applied to a separate, outer box. Vehicles sold outside of the USA may be different, even if they have same make and model name...(May 2nd, 2018)
• Emh129 Gates New Engine Crankcase (60.5% similar) Vehicles sold outside of the USA may be different, even if they have same make and model name. Shipping labels may only be applied to a separate, outer box...(November 25th, 2017)
• Emh135 Gates New Engine Crankcase (60.5% similar) Shipping labels may only be applied to a separate, outer box. Vehicles sold outside of the USA may be different, even if they have same make and model name...(January 8th, 2018)
• Emh140 Gates New Engine Crankcase 770075710554 (53.9% similar) Vehicles sold outside of the USA may be different, even if they have same make and model name. Shipping labels may only be applied to a separate, outer box...(November 27th, 2017)
• Emh147 Gates New Engine Crankcase 770075615491 (53.9% similar) ...(December 3rd, 2017)
• Emh156 Gates New Engine Crankcase 770075624493 (53.9% similar) Shipping labels may only be applied to a separate, outer box. Vehicles sold outside of the USA may be different, even if they have same make and model name...(November 27th, 2017)
• Emh181 Gates Emission Control Hose (51.9% similar) Emission control hose fits dodge Dakota Dakota,drongo Gates price is for 1 - adjust qty as needed. Be extra careful that you are purchasing the right item so will not have any fitment issues. 28INSIDE diameter 3MM: 7INSIDE 4 in. 57INSIDE diameter 1MM: 14INSIDE 2 in. 7 l, emission hose - canister ...(January 22nd, 2018)