DORMAN B07K8B91JT Engine Cooling Fan Blade Select Infiniti 621-326 Infiniti/nissan

( Brand: Dorman ), ( Manufacturer Part Number: B07K8B91JT ), ( Type: Unit ), ( Color: Multicolor ), ( Item Length: 1 In )

Review DORMAN Engine Cooling Fan Blade Compatible Select Infiniti/nissan Model's

The **Dorman 621-326 Engine Cooling Fan Blade** is a high-performance, direct-fit replacement designed specifically for select **Infiniti and Nissan** vehicles, ensuring optimal cooling efficiency and reliability for engines equipped with electric cooling fans. Engineered to meet or exceed OEM specifications, this fan blade is crafted from durable, high-quality materials that resist warping, cracking, and corrosion, even under the demanding conditions of high-speed operation and prolonged exposure to heat. The blade s aerodynamic design features precision-cut, contoured vanes that maximize airflow while minimizing noise, delivering a quieter yet more powerful cooling performance compared to standard aftermarket alternatives. This component is built to integrate seamlessly with the vehicle s existing cooling system, including the radiator, water pump, and fan motor, ensuring a snug, vibration-free fit that prevents air leaks and maintains consistent cooling pressure. Ideal for applications in **Infiniti G35, G37, QX56, and QX60 models**, as well as select **Nissan Altima, Maxima, Murano, and Rogue** vehicles, this fan blade is a straightforward upgrade for those seeking to restore factory-level cooling performance or enhance the longevity of their engine components. Whether addressing a worn-out original equipment part or upgrading to a more robust cooling solution, the Dorman 621-326 fan blade combines durability, efficiency, and ease of installation, making it a trusted choice for mechanics and DIY enthusiasts alike.

### **Pros and Cons of buying a Dorman B07K8B91JT 621-326 Engine Cooling Fan Blade (Select Infiniti/Nissan)**

1. **Compatibility** This part is specifically designed for select Infiniti and Nissan vehicles, ensuring a proper fit without modification. The 621-326 designation indicates it is tailored for certain engine cooling fan assemblies, reducing the risk of installation issues.

2. **Quality Construction** Dorman is a well-known brand in the aftermarket automotive parts industry, known for producing durable and reliable components. The fan blade is likely made from high-quality materials, such as plastic or composite, which can withstand prolonged use and exposure to heat and moisture.

3. **Direct Replacement** Since this is an OEM (Original Equipment Manufacturer) or OEM-equivalent part, it should function identically to the original fan blade, maintaining proper airflow and cooling efficiency. This minimizes the need for adjustments or additional modifications after installation.

4. **Warranty Coverage** Dorman parts often come with manufacturer warranties, providing some level of protection against defects. This can offer peace of mind if the part fails prematurely due to manufacturing issues.

5. **Ease of Installation** As a direct replacement, this fan blade should be straightforward to install, requiring only basic tools. The design is likely compatible with standard cooling fan assemblies, reducing labor time and complexity.

6. **Cost-Effective Alternative** While not always the cheapest option, this part offers a balance between price and quality. It may be more affordable than purchasing an entire cooling fan assembly if only the blade is damaged or worn.

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1. **Limited Vehicle Compatibility** Despite being labeled for "select Infiniti/Nissan" vehicles, the exact compatibility depends on the specific model, year, and engine configuration. Double-checking the vehicle s VIN or consulting a repair manual is essential to avoid purchasing an incorrect part.

2. **Potential for Counterfeit Parts** Like many aftermarket components, there is a risk of purchasing counterfeit or low-quality Dorman parts, especially from unauthorized sellers. Buying from reputable retailers (e.g., AutoZone, RockAuto, or official Dorman distributors) helps mitigate this risk.

3. **Wear and Tear Over Time** Even high-quality fan blades will degrade over time due to exposure to heat, debris, and vibration. The lifespan may be shorter than the original equipment if the vehicle is driven aggressively or in harsh conditions.

4. **No Upgrades or Performance Benefits** This is a standard replacement part and does not offer any performance upgrades (e.g., improved airflow, quieter operation, or enhanced cooling). If you re looking for a quieter fan or better cooling efficiency, you may need to explore other options.

5. **Potential for Misalignment** If the fan blade is not installed correctly (e.g., improperly secured or misaligned with the fan motor), it could cause imbalance, vibration, or even damage to the cooling system components over time.

6. **Environmental Factors** Exposure to extreme temperatures, road salt (in winter), or debris can accelerate wear. The fan blade may require periodic inspection or replacement more frequently than expected in harsh driving conditions.

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### **Conclusion**

The Dorman B07K8B91JT 621-326 engine cooling fan blade is a reliable and compatible replacement for select Infiniti and Nissan vehicles. Its strengths lie in its direct fit, quality construction, and ease of installation, making it a practical choice for routine maintenance or repairs. However, its limitations such as limited compatibility, potential counterfeit risks, and lack of performance upgrades should be considered before purchase.

If you are certain the part matches your vehicle s specifications and you are purchasing from a trusted source, this fan blade is a solid choice for restoring proper cooling system function. For long-term performance or quieter operation, you may want to explore higher-end aftermarket alternatives, but for most drivers, this part will serve its purpose effectively.

### **Recommendation**

- **Buy from a reputable retailer** (e.g., AutoZone, RockAuto, or an official Dorman distributor) to ensure authenticity and quality.

- **Verify compatibility** with your exact vehicle model and year using the VIN or a repair manual to avoid mismatches.

- **Inspect the fan assembly** before installation to ensure no other components (e.g., bearings, motor) are worn or damaged.

- **Consider a full cooling fan kit** if the motor or other parts are also failing, as replacing only the blade may not address underlying issues.

- **Follow installation guidelines** carefully to prevent imbalance or improper operation.

For most drivers seeking a straightforward, reliable replacement, this Dorman fan blade is a recommended choice. However, if you prioritize longevity or performance, research alternative options (e.g., quieter fans or high-quality aftermarket kits) may be worthwhile.

Details:

Please hover over the I to verify fitment notes match your vehicle. Quality tested - has undergone testing to ensure proper fit and performance. Dorman 621-326 Engine Cooling Fan Blade Compatible Select Infiniti/Nissan model's: Product Features: Direct replacement - this engine cooling fan blade fits and functions like the original equipment. Quality construction - manufactured from premium materials for a long service life.

Replace your damaged cooling fan blade with this direct replacement. 100 years of experience - Dorman Products has crafted top-tier automotive replacement parts for over a century. This vehicle-specific application is engineered for a perfect fit and made from quality materials to ensure durability restore proper cooling system operation. Ensure fit - Input your vehicle into the garage tool and check Confirmed Fit bar at top of page.

part #: b07k8b91jt prices

• $116.95-$126.10

specifications wallfixtureswo:

• brand: Dorman
• mpn: B07k8b91jt
• type: Unit
• color: Multicolor
• item length: 1 In

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• started: May 25, 2026
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