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OsteOster Pro 1200 Blender Gasket Replacement — 2pcs Rubber O-Ring Seal
Restore your Oster Pro 1200 blender to leak-free performance with this affordable two-piece gasket set. Premium rubber construction, accurate sizing, and an easy tool-free swap make these seals an essential spare for every kitchen.
Why replace the gasket?
Over time blender gaskets can harden, crack, or lose elasticity — which causes leaks, reduced suction at the blade assembly, and messy cleanup. Replacing the gasket keeps your blender hygienic and performing at full capacity.
Compatibility
Designed to fit Oster Pro 1200 and the following models (compatibility only; this product is not sponsored, endorsed, or affiliated with Oster):
- BLSMB-CGB-000
- BLSMB-GTF-000
- BLSMB-CBF-000
- BLSMB-BBG-000
- BLSTMB-CBG
- BLSTMB-CBF
- BLSTMB-BBG
Key features
- 2 pieces per pack — keep one as a spare.
- Premium rubber — flexible, long-lasting sealing performance.
- Leak-free design — reduces spills and keeps base clean.
- BPA-free — safe for food-contact applications.
- Easy installation — tool-free swap in seconds.
Product size & fit — check before buying
Always confirm measurements before ordering. Manual measurements may vary slightly.
| Specification | Value |
|---|---|
| Inner diameter | 7.4 cm / 2.91 inches |
| Outer diameter | 9.4 cm / 3.7 inches |
| Material | Premium Rubber |
| Color | Grey |
| Package contains | 2 pieces gasket replacement |
| Item weight | 0.598 ounces (approx.) |
| Package dimensions | 5.67 x 5.55 x 0.12 inches |
How to replace the blender gasket (quick guide)
- Unplug the blender and remove the jar from the base.
- Carefully remove the blade assembly and set it on a towel.
- Locate the old gasket around the blade hub and pull it free — if stuck, use a small flat tool gently while avoiding sharp edges.
- Place the new gasket into the groove, ensuring it sits flush and even all the way around.
- Reinstall the blade assembly and test with a small amount of water before full use.
Care & maintenance
Rinse gaskets after each use and periodically inspect for cracks or hardening. Replace immediately if any damage is found. Avoid exposing seals to direct heat for long periods.
Frequently asked questions (FAQ)
Q: Are these original Oster parts?
A: No — these gaskets are high-quality replacement parts compatible with Oster models, but they are not OEM and are not affiliated with or endorsed by Oster.
Q: How do I know this will fit my blender?
Measure your existing gasket inner and outer diameters and compare with the listed sizes (inner 7.4 cm / outer 9.4 cm). When in doubt, contact the seller with your model number.
Q: Can I use dishwashers to clean them?
Hand washing is recommended to prolong life. While occasional dishwasher cycles may be fine, repeated high-heat exposure can accelerate wear.
