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6-Fin Ninja Blender Blade Replacement parts Female Fins Blade Compatible with Ninja Auto iQ BL450 Blenders

  • Based on 661 reviews
Condition: New
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This item is eligible for return within 30 days of receipt

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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Sep 20
Order within 3 hours and 47 minutes
Available payment plans shown during checkout

Package Dimensions: 4.25 x 4.21 x 4.02 inches


Item Weight: 8.8 ounces


Date First Available: March 10, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Lasted a month ( update, I received a brand new one)
The bearing is already ruined in it. The shaft is all scored up from it. Got extremely noisy. Maybe I got a bad one . However I've yet to hear anything back about a replacement. Update . I received a new one after getting with the company. Very satisfied with their customer service.
Reviewed in the United States on December 2, 2023 by Shawn Shawn

  • Works Well but LOUD
I bought this to replace our Ninja branded blades which overheated and locked up. This replacement is a perfect fit and blends well. It looks much like the OEM part. I really have no issues other than the fact that this blade cap seems to be at least 50% louder. I can't stand near it without plugging my ears! Don't get me wrong, the OEM cap was loud, but this is so much louder. If it weren't for that, I'd give it five stars. ... show more
Reviewed in the United States on October 3, 2023 by J50k

  • Perfect
Exactly what I needed to replace my old one, my blender is back to normal, very happy.
Reviewed in the United States on November 27, 2023 by jackie a

  • It works very well with my Ninja Bullet.
The top is the exact size for the bottom and it works great! I have no regrets in purchasing it.
Reviewed in the United States on August 2, 2023 by Doreen Jones

  • Ninga blade
I did order the wrong attachment and the company included the right one for me. I so much appreciate that!! I use mine for smoothies every morning! Really like the ninja!
Reviewed in the United States on November 16, 2023 by Heidi sichting

  • just what we needed
just what we needed ours wore out and perfect replacement
Reviewed in the United States on November 30, 2023 by karl

  • Great product
It fit my ninja perfectly thank you
Reviewed in the United States on November 26, 2023 by Amazing Product!! 😃😃😃😃

  • Perfect replacement fit
This arrived quickly and fit my Ninja and the cups perfectly. I am very pleased with it. The company even sent along a 7 fin blade although they were very clear in their description that this was a 6 fin replacement. I am guessing they've had plenty of folks who can't differentiate between six and seven or they wouldn't do that. Anyway, I am happy with it and would recommend it. ... show more
Reviewed in the United States on October 11, 2023 by Gretchen Dymond

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