Oster Pro 1200 Blender Gasket Rubber O-Ring Seal Replacement 2pcs
Product Overview
Restore a tight, leak-free seal in your blender with this set of 2 replacement rubber gaskets designed for the Oster Pro 1200. Made from premium, flexible rubber that is BPA-free and durable, these O-ring seals keep your blender base clean and your blending performance consistent.
Key Features
- Premium rubber construction — flexible, durable, and designed to hold up under repeated use.
- Leak-resistant seal — engineered to prevent leaks and help maintain blade-to-base sealing.
- BPA-free — safe for food contact.
- Easy tool-free replacement — detach the old gasket and press in the new one.
- Pack of 2 — keep one as a spare for future replacements.
Product Specifications
| Color | Grey |
|---|---|
| Material | Rubber (BPA-free) |
| Inner diameter | 7.4 cm / 2.91 inches |
| Outer diameter | 9.4 cm / 3.70 inches |
| Package dimensions | 5.67 × 5.55 × 0.12 inches |
| Item weight | 0.598 ounces (approx.) |
| Package includes | 2 × blender gasket replacement |
Note: Manual measurement may cause slight size and weight variances. Color may vary slightly depending on monitor settings. Please check the size before purchasing to ensure compatibility.
Compatibility
This gasket set is compatible with the Oster Pro 1200 blender and the following model codes:
- BLSMB-CGB-000
- BLSMB-GTF-000
- BLSMB-CBF-000
- BLSMB-BBG-000
- BLSTMB-CBG
- BLSTMB-CBF
- BLSTMB-BBG
This product is not sponsored, endorsed, or affiliated with Oster or other brands it is compatible with.
Easy Replacement — Step-by-Step
- Unplug the blender and remove the jar from the motor base.
- Turn the jar upside down and unscrew the blade assembly (if your model requires removing the blade to access the gasket).
- Carefully remove the old gasket — use your fingers or a non-metal tool to avoid damaging the jar or blade assembly.
- Clean the groove and surrounding area to remove residue or debris.
- Press the new rubber gasket into place, ensuring it sits evenly in the groove.
- Reassemble the blade assembly and jar, check the seal by filling the jar with a small amount of water and testing on the counter (not on the motor base) to confirm no leaks.
Frequently Asked Questions
Will this gasket fit my Oster Pro 1200?
Yes — this replacement gasket is sized to fit the Oster Pro 1200 and the model variants listed in the compatibility section. Confirm the inner (7.4 cm) and outer (9.4 cm) diameters against your current gasket before purchasing.
Is this product made by Oster?
No — these are third-party replacement gaskets designed to be compatible with Oster models. The product is not sponsored, endorsed, or affiliated with Oster.
How often should I replace the gasket?
Replacement frequency depends on use. If you notice leaks, cracks, or deformation, replace the gasket immediately. Having a spare set on hand is recommended for regular users.
Final Thoughts
If your Oster Pro 1200 blender is leaking or losing efficiency because of a worn seal, replacing the gasket is an inexpensive way to restore performance. These 2pcs premium rubber gaskets offer a flexible, BPA-free, and leak-resistant solution — simple to install and sized to match the original seal. Always confirm measurements and compatibility before ordering.
