fits model: Sentra. make: Nissan. year: 2007–2012.

( Manufacturer Part Number: 85221-ET00A ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Year: 2007 2008 2009 2010 2011 2012 ), ( Parts Included: Only Part Reference 9 On The Diagram Is Included )
The **Nissan 85221-ET00A** is a high-quality, precision-engineered **retainer** designed specifically for the **Nissan CVT (Continuously Variable Transmission)** systems found in select models, including the **Altima, Sentra, Rogue, and Versa** (depending on the year and variant). This retainer plays a critical role in maintaining optimal tension and alignment within the **CVT belt and pulley assembly**, ensuring smooth power transmission, reducing wear on internal components, and preventing premature failure of the transmission system. Crafted from durable **high-grade polymer materials**, the retainer is engineered to withstand the high temperatures, constant friction, and dynamic loads inherent to CVT operations, providing long-lasting reliability under demanding driving conditions. Its unique design incorporates **precision-molded ribs and a robust snap-fit mechanism**, allowing for easy installation without the need for specialized tools while ensuring a secure and consistent fit. The retainer s smooth, reinforced structure minimizes vibration and noise, contributing to a quieter, more refined driving experience. Whether used in original equipment applications or as a high-quality replacement part, the **Nissan 85221-ET00A retainer** exemplifies Nissan s commitment to performance and durability, offering mechanics and vehicle owners a dependable solution for maintaining the health of their CVT transmission. Proper installation and regular inspection are recommended to maximize its service life and ensure optimal transmission performance.
### Pros and Cons of buying a Nissan 85221-ET00A Retainer
The **Nissan 85221-ET00A** is a universal retainer used in various Nissan applications, particularly for the **transmission input shaft** or **flexplate** in automatic transmissions. Below is a detailed breakdown of its advantages and disadvantages.
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### **Pros**
1. **High Quality and Durability**
The 85221-ET00A retainer is manufactured to strict OEM standards, ensuring it meets or exceeds the performance of the original Nissan part. It is typically made from high-grade steel, which provides resistance to wear, deformation, and heat, extending the lifespan of the transmission components it secures.
2. **Universal Compatibility**
As a universal part, it is designed to fit multiple Nissan models and transmission types, including but not limited to:- **RE4R04A, RE4R05A, RE4R06A** (common in older Nissan CVTs and automatic transmissions).
- Some **Jatco JF011E** applications.
It eliminates the need for extensive research to find the exact OEM part number for your specific vehicle, saving time and effort.
3. **Cost-Effective Alternative to OEM**
While not always the cheapest option, the 85221-ET00A retainer is often more affordable than purchasing a brand-new OEM part directly from Nissan. It provides a balance between quality and price, making it a practical choice for DIY enthusiasts or those on a budget.
4. **Ease of Installation**
The retainer is relatively simple to install, especially if you have basic mechanical skills. It typically requires removing the flexplate or transmission input shaft, replacing the old retainer, and securing it back in place. Many users report that the process takes less than an hour with the right tools.
5. **Widely Available**
This part is stocked by numerous aftermarket suppliers, online marketplaces (eBay, Amazon, RockAuto), and auto parts stores. Its availability reduces the risk of long wait times or difficulty sourcing the part.
6. **Prevents Transmission Damage**
A worn or missing retainer can cause shifting issues, grinding noises, or even catastrophic transmission failure. Replacing it proactively can prevent costly repairs down the line.
7. **Backed by Warranties (Depending on Supplier)**
Reputable sellers often provide warranties or guarantees on their universal parts, offering some recourse if the retainer fails prematurely. Always check the seller s return policy before purchasing.
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### **Cons**
1. **Potential Fitment Issues**
While universal, the 85221-ET00A may not fit *every* application perfectly. Some users report slight misalignments or gaps, particularly in older or heavily modified transmissions. It s crucial to verify compatibility with your specific transmission model before purchasing.
2. **Quality Variability**
Not all universal parts are created equal. Some cheaper or lower-quality retainers may lack the precision machining of OEM parts, leading to premature wear or failure. Research the supplier s reputation and read reviews to ensure you re getting a reliable product.
3. **Limited Customization**
Unlike OEM parts, universal retainers may not offer the same level of customization or exact specifications. If your transmission requires a very specific retainer (e.g., for high-performance applications), a universal part might not be ideal.
4. **Potential for Counterfeit Parts**
The aftermarket is rife with counterfeit or substandard parts, especially on platforms like eBay or Alibaba. Purchasing from untrusted sellers increases the risk of receiving a fake or poorly made retainer. Always buy from reputable suppliers with positive reviews and clear return policies.
5. **May Not Include Additional Components**
Some OEM retainer kits come with gaskets, seals, or other necessary components. Universal parts may not include these, requiring you to source them separately, adding to the overall cost.
6. **Installation Challenges for Beginners**
While straightforward, replacing a retainer often involves disassembling part of the transmission or engine. Inexperienced DIYers may struggle with tools, torque specifications, or proper alignment, potentially leading to damage or improper installation.
7. **No Official Nissan Support**
Since this is a universal part, Nissan s technical support or warranty may not cover it. If issues arise, you ll need to rely on the supplier s customer service, which may not be as robust as OEM assistance.
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### **Ending Conclusion**
The **Nissan 85221-ET00A retainer** is a practical and cost-effective solution for replacing a worn or damaged retainer in compatible Nissan transmissions. Its universal design saves time and effort, and its high-quality construction ensures durability. However, potential fitment issues, variability in quality, and the risk of counterfeit parts require careful consideration before purchase.
For most DIYers or those replacing a retainer as part of routine maintenance, this part is a solid choice. If you re working on a high-performance or rare transmission, however, verifying exact compatibility and sourcing from a trusted supplier is essential.
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### **Recommendation**
1. **Verify Compatibility**: Double-check that the 85221-ET00A is listed as compatible with your specific transmission model. Consult your vehicle s service manual or a transmission specialist if unsure.
2. **Purchase from a Reputable Supplier**: Stick to well-known aftermarket brands (e.g., **Fel-Pro, Carter, or local transmission specialists**) or trusted online retailers with positive reviews. Avoid suspiciously cheap deals that may indicate counterfeit parts.
3. **Inspect the Part Upon Arrival**: Once received, visually inspect the retainer for signs of poor machining, cracks, or inconsistencies. If it looks substandard, return it immediately.
4. **Follow Installation Guidelines**: Use the correct tools and torque specifications to avoid damaging the transmission. If unsure, consult a professional mechanic.
5. **Consider OEM for Critical Applications**: If this is part of a major transmission overhaul or your vehicle is under warranty, weigh the cost of the universal part against the potential long-term benefits of an OEM replacement.
**Final Verdict**: The 85221-ET00A retainer is a **good choice for most standard applications**, offering a balance of affordability and reliability. However, proceed with caution, prioritize quality, and ensure proper fitment to avoid complications.
Electrical parts are not returnable. 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.