NISSAN 14939-7S000 Service Valve

( Manufacturer Part Number: 14939-7S000 ), ( Part Type: Valve ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Year: 2012 2013 2014 2015 2016 2017 2018 2019 ), ( Parts Included: Only Part Reference 7 On The Diagram Is Included )

Review NISSAN Genuine Service Valve fits 2012–2019

The **Nissan 14939-7S000 Service Valve** is a precision-engineered component designed specifically for Nissan vehicles equipped with the CVT (Continuously Variable Transmission) system, serving as a critical element in maintaining optimal hydraulic performance within the transmission fluid circuit. This high-quality valve is meticulously crafted to regulate the flow of transmission fluid, ensuring seamless engagement and disengagement of the belt-driven pulleys that enable the CVT s infinite gear ratio capability. Constructed from durable materials, including a robust metal housing and a tightly sealed internal mechanism, the valve is engineered to withstand the high pressures and temperatures inherent to modern transmission systems, preventing leaks, fluid contamination, and premature wear. Its unique design incorporates a spring-loaded mechanism that precisely controls fluid pressure, allowing for smooth shifting and efficient power transfer while minimizing strain on the transmission components. Whether installed in models like the Nissan Altima, Rogue, or Sentra, this valve plays a pivotal role in extending the lifespan of the CVT by maintaining consistent hydraulic balance, reducing friction, and preventing clogging in the transmission s intricate pathways. For automotive technicians and DIY enthusiasts, this part represents a vital replacement option for vehicles experiencing symptoms such as delayed shifting, erratic acceleration, or unusual noises emanating from the transmission, ensuring reliable performance and longevity when properly installed and serviced.

### Pros and Cons of buying a Nissan Part Number **14939-7S000 (Service Valve)**

1. **Compatibility** This part is designed specifically for Nissan vehicles, ensuring a proper fit with the vehicle s fuel or air intake system. It is commonly used in models like the **Altima, Sentra, Maxima, and Rogue**, among others, making it a reliable choice for those needing an exact replacement.

2. **Cost-Effective Alternative** Compared to OEM (Original Equipment Manufacturer) parts, aftermarket service valves like this one are often significantly cheaper, providing a budget-friendly solution for repairs without sacrificing performance.

3. **Ease of Installation** The design of this valve is straightforward, and many mechanics or DIY enthusiasts can install it without specialized tools. It typically requires basic removal of the existing valve and securing the new one in place.

4. **Durability** High-quality aftermarket parts, especially those from reputable brands, are manufactured to meet or exceed OEM standards. This valve should last as long as the original, provided it is installed correctly and maintained properly.

5. **Widespread Availability** Since this is a common part, it is easy to find in auto parts stores, online marketplaces, or directly from manufacturers. This reduces the risk of long wait times or difficulty sourcing the part.

6. **Potential for Improved Performance** In some cases, aftermarket valves may offer slight performance enhancements, such as better airflow or fuel delivery, depending on the vehicle s application.

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1. **Quality Variability** Not all aftermarket parts are created equal. Some cheaper or lower-quality versions may fail prematurely or not seal properly, leading to leaks or reduced efficiency. It s important to research the brand and read reviews before purchasing.

2. **Potential Incompatibility Issues** While this part is designed for Nissan vehicles, slight variations in model years or engine types could lead to fitment issues. Always verify compatibility with your specific vehicle s make, model, and year before buying.

3. **Lack of Warranty or Return Policy** Many aftermarket parts come with limited or no warranties compared to OEM parts. If the valve fails shortly after installation, you may be out of luck unless the seller offers a return or replacement policy.

4. **Installation Risks** If the valve is not installed correctly, it could lead to leaks, improper sealing, or even damage to surrounding components. Improper installation might require professional help, adding to the overall cost.

5. **Brand Reputation Matters** Purchasing from an unknown or untrusted seller could result in receiving a counterfeit or substandard part. Always buy from reputable suppliers, such as **RockAuto, Amazon (verified sellers), or local auto parts stores with good reviews**.

6. **Potential for Overpaying for "Premium" Brands** Some aftermarket brands market themselves as "premium" but may not justify the higher price. It s wise to compare prices and features to ensure you re getting the best value.

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The **Nissan 14939-7S000 service valve** is a practical and cost-effective choice for Nissan vehicle owners needing a replacement valve. It offers compatibility, ease of installation, and accessibility, making it a popular aftermarket option. However, the quality can vary depending on the brand and seller, so thorough research is essential. While it can save money compared to OEM parts, there is a risk of lower durability or fitment issues if not the right match for your vehicle.

For most budget-conscious buyers who prioritize affordability and ease of replacement, this part is a solid choice **if purchased from a trusted source**. However, if your vehicle requires a high-performance or long-term solution, investing in an OEM or higher-quality aftermarket alternative might be worth the extra cost.

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1. **Verify Compatibility** Double-check that this part number matches your exact vehicle model, year, and engine type. Use resources like **Nissan s parts catalog, RockAuto, or your local dealer** to confirm.

2. **Choose a Reputable Brand** Opt for well-known aftermarket brands such as **Dorman, ACDelco, or Bosch**, which are known for reliability. Avoid generic or no-name parts unless you are certain of their quality.

3. **Buy from Trusted Sellers** Purchase from established online retailers (e.g., **Amazon, RockAuto, AutoZone**) or local auto parts stores with good customer reviews. Avoid suspicious sellers offering significantly lower prices.

4. **Consider OEM if Budget Allows** If your vehicle is high-mileage or you prioritize longevity, an OEM or Nissan-approved aftermarket part may be worth the extra investment to avoid potential future issues.

5. **Professional Installation (If Needed)** If you are unsure about installing the valve yourself, consult a mechanic to ensure proper sealing and avoid leaks or damage.

6. **Check for Warranty or Return Policy** Before purchasing, confirm whether the part comes with any warranty or if the seller offers returns. This provides peace of mind in case of defects.

**Final Verdict:** For most Nissan owners needing a straightforward replacement valve, the **14939-7S000 is a reasonable and cost-effective choice**, provided you take precautions to ensure quality and compatibility. However, always weigh the pros and cons against your specific needs before making a purchase.

Details:

Parts must be resalable and in the original packaging. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Electrical parts are not returnable.

part #: 149397s000 prices

• $10.32-$24.99

specifications emissyste:

• for makes: Nissan
• for years: 2012-2019
• mpn: 14939-7s000
• part type: Valve
• genuine oem: Yes
• manufacturer warranty: 1 Year
• universal fitment: Direct Replacement
• year: 2012 2013 2014 2015 2016 2017 2018 2019
• parts included: Only Part Reference 7 On The Diagram Is Included

payments emissyste:

• credit card: Diners-club
• other
• wallet: Paypal

seller emissyste:

• # reviews: 237
• rating: 100.0%
• city: Puyallup, Washington

returns emissyste:

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

offer emissyste:

• availability: In Stock
• quantity: 3
• started: February 14, 2026
• options: Ship-to-home
• sold: 0

general emissyste:

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

shipping emissyste:

• type: Fixed
• transit: 5-10 Days
• cost: $12.78
• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• carrier: FedEx

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