Blender Replacement Parts, 6 Fins Male Extractor Blade Assembly Fits Ninja 16oz Cups, 307KKU 322KKU770 Replacement Extractor Blade fit for Ninja BL660 BL663 BL665Q BL740 BL770AMZ BL772 BL773CO BL780

Works perfectly in my BL770. The contents mix up to the top instantly.

Skeptical this wouldn’t fit, but it does perfectly! It’s holding up to everyday use.

I've had my Ninja 1500 watt blender for over 10 years. About 4 years ago I bought new blades with 2 blender cups. The blades never sat correctly into the blender. I had to press down on top of the cup to have it lock it into place. Recently it was noisy and I thought it was the blender. I bought these blades and it drop in place like the original and it doesn't sound like my blender is about to burnout.

This replacement blade works perfect for my ninja blender. Great price too.

My original equipment blender base finally wore out after several years of hard use. The rubber impeller on the bottom was in perfect shape. It was the seal that was the problem. So I replaced it with this unit. It looks pretty much exactly like the old one, but I guarantee you that it’s not. Instead of a high impact, wear resistant rubber impeller that locks into the blender, this unit is a piece of steel with rubber molding around it. All of the teeth, instead of being soft rubber, have a hard steel core. After a couple months of use, I noticed that my cups were no longer seating properly. I looked at the blender attachment and the tips of the rubber teeth had cracked away, exposing sharp metal, which intern, ate the rubber mating impeller teeth on my blender. Now my blender needs a major overhaul, or it will be going in the trash, all because of this inferior piece of junk. So not buy it. You will be sorry.

I order a new one of these twice a year. The rubber gear coating tears and wears out if you blend frozen fruits everyday. I admit I sometimes over fill the cup. In the past some of my replacements didn't seal very well or wore out faster than others. This one seems to fit perfect and so far is really durable. Starred it so I can buy again if needed.

Excellent replacement for broken original part. Was about to buy a smaller Ninja but found this one and fits perfectly. Works great.

The blade fits on my BL773CO 30 perfectly. It has been used once only so the functionality wise is ok but yet to find out the longevity.From the picture , the left is old and right side is new one.Accidently found out that the pinion is detachable as opposed to the original one which is fixed to the shaft, kind of rabbeted. I think the old one might have a ball bearing that causes the jam overtime.