GATES EMH315 Engine Crankcase Breather Hose Emission Control 770075841517 2.5L-L4

( Brand: Gates ), ( Manufacturer Part Number: EMH315 ), ( Type: Engine Crankcase Breather Hose ), ( UPC: 770075841517 )

Review GATES Engine Crankcase Breather Hose emission Control 2.5l-l4 fits ALTIMA 2013–2018

The **Gates EMH315 Engine Crankcase Breather Hose Emission Control Hose (Fits 2013-2018 Nissan Altima 2.5L L4)** is a precision-engineered replacement part designed to maintain optimal engine performance, emissions compliance, and long-term reliability in your Nissan Altima s intake system. This high-quality hose is specifically crafted to replace the factory-equipped crankcase breather line, which plays a critical role in regulating the flow of blow-by gases unburned fuel and air that escape past the piston rings back into the engine s intake manifold. By ensuring a secure and leak-free connection between the Positive Crankcase Ventilation (PCV) system and the intake, this hose helps prevent harmful emissions, reduces engine oil contamination, and minimizes the risk of vacuum leaks that could trigger check engine lights or degrade fuel efficiency. Constructed from durable, heat-resistant synthetic rubber, the Gates EMH315 is engineered to withstand the demanding conditions of modern engine bays, including exposure to engine heat, oil mist, and vacuum fluctuations, while maintaining flexibility to accommodate engine movement and thermal expansion. Its tight-fitting design ensures a proper seal at both the engine block and intake manifold connections, preventing air leaks that could disrupt engine balance or trigger the PCV system to malfunction. Whether you re addressing a failing original hose, upgrading for enhanced durability, or performing routine maintenance, this OEM-replacement part delivers the same performance as the factory component, ensuring compliance with emissions standards and preserving your engine s efficiency. Ideal for DIY mechanics and professional technicians alike, the Gates EMH315 is a straightforward, no-nonsense solution that fits seamlessly into the 2.5L L4 engine applications of the 2013 through 2018 Nissan Altima, offering peace of mind with every drive.

### **Pros and Cons of buying a Gates EMH315 Engine Crankcase Breather Hose (Emission Control Hose for 2013 2018 Nissan Altima 2.5L L4)**

1. **OEM Quality and Compatibility** Gates is a well-respected manufacturer known for producing high-quality aftermarket parts that meet or exceed OEM specifications. This hose is designed specifically for the 2013 2018 Nissan Altima with a 2.5L engine, ensuring a proper fit and function.

2. **Improved Emissions Control** The crankcase breather system helps regulate pressure in the engine s crankcase, preventing oil leaks and reducing harmful emissions. A properly functioning hose ensures the system operates efficiently, which can help maintain emissions compliance and engine longevity.

3. **Durability and Longevity** Gates hoses are typically made from high-quality materials, such as reinforced rubber or silicone, which are resistant to heat, oil, and engine fluids. This reduces the likelihood of premature failure compared to cheaper, generic replacements.

4. **Easy Installation** The hose is designed to fit standard crankcase breather systems, and many users report that it can be installed quickly with basic tools. Gates often provides clear installation instructions, making the process straightforward for DIYers.

5. **Prevents Engine Contamination** A failing breather hose can allow crankcase gases (including unburned fuel and oil vapors) to enter the intake system, leading to carbon buildup on intake valves, spark plugs, and other components. Replacing it with a Gates hose helps maintain clean engine operation.

6. **Warranty and Reliability** Gates offers warranties on many of its products, providing peace of mind in case of defects. The brand s reputation for reliability means you re less likely to experience repeated failures compared to no-name brands.

7. **Compatibility with Aftermarket Upgrades** If you ve modified your Altima (e.g., added a turbo, performance intake, or exhaust), a Gates hose may integrate better with these changes than a standard OEM part, reducing the risk of leaks or improper sealing.

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1. **Higher Upfront Cost** Compared to generic or no-brand hoses, Gates parts are typically more expensive. While this reflects better quality, it may be a deterrent for budget-conscious buyers.

2. **Potential Overkill for Minor Issues** If the original hose failed due to a minor issue (e.g., a loose clamp or minor cracking), some may argue that a Gates hose is unnecessary unless you re experiencing persistent problems or want long-term reliability.

3. **Installation Challenges for Inexperienced DIYers** While generally straightforward, the crankcase breather system is located near the valve cover and intake manifold. Improper installation (e.g., over-tightening clamps or misalignment) could damage seals or create leaks. Those unfamiliar with engine work may need to seek professional help.

4. **Limited Availability in Some Regions** Depending on where you purchase from, Gates parts may not be as widely stocked as OEM or generic alternatives. Online retailers (e.g., Amazon, RockAuto, or Gates official site) are more likely to carry it than local auto parts stores.

5. **Mixed Reviews on Specific Fitment** While Gates is generally reliable, some users report minor fitment issues (e.g., hose length discrepancies or slight misalignment with the PCV system). Double-checking measurements or consulting installation guides beforehand can mitigate this.

6. **Not a "Fix-All" Solution** If the underlying issue causing hose failure is something other than wear (e.g., a failing PCV valve, cracked valve cover gasket, or intake manifold leak), replacing just the hose may not fully resolve the problem. A thorough inspection is recommended.

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The Gates EMH315 crankcase breather hose is a **strong, high-quality replacement** for the 2013 2018 Nissan Altima s emission control system. Its OEM-level performance, durability, and compatibility make it a **reliable choice** for those prioritizing long-term reliability and emissions efficiency. However, the higher cost and potential complexity of installation may not justify the purchase for minor or temporary issues. If you re experiencing persistent crankcase pressure problems, oil leaks, or carbon buildup, this hose is a **solid investment** to prevent further engine contamination and maintain optimal performance.

For most drivers, the **benefits outweigh the drawbacks**, especially when compared to cheaper alternatives that may fail sooner. If you re unsure about installation, consulting a mechanic or following Gates installation guide carefully will ensure a proper fit.

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- You re replacing a failed or worn-out crankcase breather hose.

- You want a durable, long-lasting solution that improves emissions control.

- You re performing other engine maintenance (e.g., valve cover gasket replacement, PCV valve check) and want to address the breather system comprehensively.

- You re willing to pay a premium for a reputable brand with good warranties.

- The hose failure is isolated to a minor issue (e.g., a loose clamp) that could be fixed with a generic replacement.

- You re on a tight budget and can t afford the higher cost.

- You lack confidence in installing it yourself and don t want to risk damaging other components.

**Final Verdict:** **Highly recommended** for most Altima owners seeking a reliable, long-term fix for their crankcase breather system. Pair it with a new PCV valve and valve cover gasket if those components are also suspect for complete peace of mind.

Details:

This part fits vehicles made in the following years 2013 ,2014,2015,2016,20 17,2018. This replacement hose e. Actively restores the emission system to desired operation and performance. Get the maximum service life out of your emission hose by using Gates' solutions. Engine Crankcase Breather Hose.

part #: emh315 prices

• $32.92-$34.33

specifications emissyste:

• for models: Altima
• for years: 2013-2018
• brand: Gates
• mpn: Emh315
• type: Engine Crankcase Breather Hose
• upc: 770075841517

payments emissyste:

• wallet: Paypal
• other
• credit card: Mastercard

shipping emissyste:

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

general emissyste:

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

returns emissyste:

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

offer emissyste:

• quantity: 2
• sold: 0
• options: Ship-to-home
• started: March 11, 2026
• availability: In Stock

seller emissyste:

• # reviews: 753
• city: Brooklyn, New York
• rating: 100.0%

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