Does this come with the rubber gasket?

I think I know what you are asking about. If it is about the rubber ring that usually found in these type of blenders...the rubber ring is built in.

The cutting assemby blades are hard to turn with my hand. Should they turn smoothly?

Yes the cutting blades should turn freely. If not it will burn out the drive motor.

I just purchased the Cuisinart CPB-300, can you tell me what the difference in this blade and the one that comes with the blender is?

I'm not sure there is a difference. I bought it to replace the original blade when it quit spinning and was jamming. I still have my original machine, it has held up a long time, but I have had to replace a couple of the blade bases because they either quit spinning or broke. The Cuisinart website also sells parts, I recall that this one was a little less expensive.

My husband forgot a spoon inside it crashed the cup and the blades are a little bit scratched like it had been eaten what should I buy to fix

I'd probably just get another one if the blades are damaged. I think you can order replacement cups as well.

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Cuisinart CPB-300CA Replacement Cutting Assembly – Compatible with CPB-300, CPB-300PK, & CPB-300W (Fits Pictured Models Only, OEM Part)

Product ID: 19618996

⚙️Precision-engineered fit

🛠️Easy DIY installation

🇺🇸Made in USA durability

€ 93.16

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Upgrade your blend game with precision and ease!

AUTHENTIC OEM QUALITY - Genuine Cuisinart part ensures peak performance and peace of mind.
DURABILITY THAT LASTS - Crafted from premium materials to keep your blender slicing smoothly for years.
SEAMLESS COMPATIBILITY - Perfectly tailored for Cuisinart CPB-300 series models—no guesswork needed.
EFFORTLESS INSTALLATION - Replace your cutting assembly in minutes and get back to flawless blending.
CONSISTENT PRECISION CUTTING - Engineered to deliver uniform, efficient chopping for professional-grade results.

This OEM Cuisinart CPB-300CA Replacement Cutting Assembly is designed exclusively for CPB-300, CPB-300PK, and CPB-300W models. Made in the USA with premium materials, it guarantees durable, precise cutting performance and quick installation, restoring your blender to factory-level efficiency.

Specifications

Best Sellers Rank	#1,544,432 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #925 in Food Processor Parts & Accessories
Customer Reviews	4.5 out of 5 stars 259 Reviews

Reviews

R**D

28.02.2014

D**R

28.12.2025

R**S

26.01.2022

A**N

8.04.2026

T**S

25.04.2025

R**N

18.08.2020

C**U

8.05.2023

P**Y

26.11.2024

M**E

27.06.2023

I**O

30.08.2021

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