Replacement Parts Compatible with Ninja Blender Parts Bottom Blade 6 Fin Cups Lids Rubber Base Gear Gaskets Compatible with Nutri Ninja BL660 BL740

This replacement kit is exactly what I needed, plus I now have extra parts to use if needed in the future. Since this is such a good price, it was well worth the purchase as this extends the life of my blender. No issues with shipping or the product itself, highly recommend.

Please for the love of food do not buy these replacement parts. They do no fit the original Nutri-Ninja. After years of happy use but losing 2 of my cups, I ordered this replacement set. Sadly, even with careful use and proper installation, they spray smoothie all over the machine and anything close by in my kitchen. The black blade topper doesn't screw on tightly or seal. I never had any problems with my original parts creating a seal. These new ones slip the threading if tightened (like you would if trying to seal it). Simply put, they dont work unless you want food to leak all over your NN mixer. I threw them away as they were absolutely trash.

I bought this set to replace original and the quality is good for the price. No problems so far.

Not original, but all parts fit and seems to be equal in quality to the original.I am able to mix my original ninja cups / lids with these parts and they all fit together.It's nice they include extra o-rings for both the blade and the cups.

Does not fit!!! Another one that I bought that won’t fit when they said it compatible. I got too busy and could return this now. Waste of money!!!

They all work good at first but eventally they all leaked and or rusted up. They also could not be mixed with the origional cups and blades. They were ok for about 1 year.

It works well. Seemed to have a rubber smell initially, but not sure if that was from the last one that burned out. It seems to have resolved and works now with no smell. Glad to have it back. The smaller cups keep my kids from wasting too much making their own smoothies. :)

Poor/questionable quality. Not compatible with OEM Ninja parts. The blender cap leaks through the shaft seal. Do not recommend this product.