Here are the exact replacement parts you can use for the 6‑cup Oster glass jar with blade — and both options shown below are compatible with the Oster Classic Series as long as your blender base opening is 3 3/8 inches.
Replacement parts 6-Cup Glass Jar With Blade, Compatible with Oster Blenders
If your Oster blender jar cracked, chipped, or simply wore out, the Oster 6‑Cup Replacement Glass Jar With Blade is one of the most reliable and cost‑effective ways to bring your blender back to life. Designed to fit most Oster Classic Series and Oster 6‑cup models, this replacement jar offers durability, clarity, and long‑term performance without needing to buy a whole new appliance.
Quick Verdict
This replacement jar is ideal for anyone who owns an Oster Classic Series blender and wants a sturdy, heat‑resistant glass jar that performs just like the original. It’s perfect for smoothies, soups, sauces, and everyday blending. If your base opening is 3 3/8 inches, this jar is almost always a guaranteed fit. If you own an Oster Pro or Versa model, you’ll need a different jar.
Key Features at a Glance
- 6‑cup Boroclass® glass jar — heat‑resistant and dishwasher‑safe
- Stainless steel blade assembly included
- Compatible with most Oster 6‑cup blenders
- Fits 3 3/8” base openings
- Includes lid and bottom cap (varies by model)
- Ideal for smoothies, soups, sauces, and ice blending
These features make it a practical, long‑lasting replacement for daily kitchen use.
Design & Build Quality
The standout feature is the Boroclass® glass, known for its durability and ability to withstand sudden temperature changes. Whether you’re blending hot soup or crushing ice, the jar remains stable and safe. The thick glass walls feel premium and resist cracking far better than plastic alternatives.
The included stainless steel blade assembly is sharp, efficient, and built to last. It attaches securely to the bottom cap, creating a tight seal that prevents leaks when blending. The jar’s shape promotes smooth blending, reducing the need to stop and scrape down the sides.
Everyday Performance
In daily use, this replacement jar performs just like the original Oster jar. Smoothies blend evenly, soups puree quickly, and sauces come out silky. The blade handles ice well, especially when using the pulse function.
Cleanup is simple — the jar, lid, and blade assembly are all dishwasher‑safe. The glass doesn’t absorb odors or stains, making it ideal for frequent use.
If your old jar leaked, cracked, or became cloudy over time, this replacement instantly improves your blender’s performance and appearance.
