Is this item a genuine Oster replacement part?

I spoke with Oster on this. If it comes inscribed "Oster" on the part, then it is Oster, if not it is a knock off. the knockoffs will fit but may have non food grade lubricant and less robust seal meaning they will leak some bad stuff into your smoothie or blended drink. Just make sure what you get is etched with "Oster" and if not send it back and insist on shipping costs for false product. there are several sellers here and some maybe selling non oem knockoffs

will this fit my Osterizer 10 speed blender No.869-18S?

It works very well on my very old 841-J 10 speed. I believe there are only two types of blades for Oster blenders. If the picture matches your blades, the chances are very good it will work OK. Otherwise you can buy it at ACE for $17 and get an easy return (like I did, before I tried Amazon).

I got a knock off from Aza Mart which leaks like there's no tomorrow. . Is "Oster" inscribed on the blade base?

This blade fits perfectly and does not leak. I did not see an inscription.

How can I find the model # on my Oster blender and I need the ice blade replacement

I have a John Oster Mfg. Co. Osterizer, Model 10, made in Milwaukee or Racine, Wisconsin, Serial No. 891211. How can I find out when it was manufactured?

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Oster 4961-011 Black 2-Piece Blender Accessory Set, Includes 1 Blade and 1 Sealing Ring for 5-6 Cup Glass or Plastic Jars

Product ID: 280180226

Details

Brand
Oster
Capacity
28 g
Colour
Black
Product dimensions
7.6D x 7.6W x
Special features
Portable

⚡13.2W power for efficient ice crushing

🔒Sealing ring prevents leaks flawlessly

🗡️Stainless steel blade for precision crushing

Description

🖤 Upgrade your blend game with Oster’s ultimate blade & seal set!

DURABILITY THAT LASTS - Extend the life of your Oster blender with accessories built to withstand daily use and maintain flawless function.
EFFORTLESS MAINTENANCE - Hand wash recommended to preserve sealing integrity and keep your blender running like new.
LEAK PROOF SEALING RING - Keep your kitchen mess-free with a high-quality rubber ring that locks in freshness and prevents spills.
UNIVERSAL COMPATIBILITY - Fits most Oster 5-6 cup glass or plastic jars, making upgrades and replacements seamless.
PRECISION STAINLESS STEEL BLADE - Experience perfectly crushed ice every time with durable, razor-sharp blades designed for peak performance.

The Oster 4961-011 2-piece blender accessory set includes a premium stainless steel blade and a leak-proof sealing ring, engineered to fit most 5-6 cup Oster jars. Designed for efficient ice crushing and long-lasting performance, this set revitalizes your blender’s functionality while preventing leaks. With 13.2 watts of power compatibility and durable materials, it’s the essential upgrade for any Oster blender owner seeking flawless blending and mess-free use.

Specifications

ASIN	B000BD6L0O
Blade Material	Stainless Steel
Brand Name	Oster
Capacity	28 g
Color	Black
Container Count	2
Controls Type	Push Button
Customer Reviews	4.7 4.7 out of 5 stars (8,266)
Global Trade Identification Number	00034264025677
Included Components	Blade, Sealing Ring
Is the item dishwasher safe?	Yes
Item Dimensions D x W x H	7.6D x 7.6W x 7.6H centimeters
Item Type Name	Blender Accessory
Item Weight	60 Grams
Manufacturer	Oster
Material	Stainless Steel
Material Type Free	en_AE
Model Number	4961-011
Number of Items	1
Other Special Features of the Product	Portable
Part Number	4961
Power Source	Corded Electric
Recommended Uses For Product	Ice Crush
Style	Fine
UPC	034264487949 034264025677 885244622894 885854836636 732233441991 804482140953 885629008329 885371349152 885623847153 885732867592 085081973443 609207304234 885818201630 885931280444 730337113011 788536205983 788536205853 642078039706 885984611127 762578362866
Unit Count	1.0 Count
Voltage	220 Volts
Wattage	13.2 watts

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