7 Best Oster Blender Attachments of 2026

This no-nonsense refresh kit delivers exactly what long-time Oster users need: a reliable, precision-matched set of critical wear parts that breathe new life into aging blenders. The stainless steel ice blade pairs with a durable hard plastic gear and a well-engineered jar base to restore crushing power that often degrades over time. For owners of classic Osterizer models, this kit solves the all-too-common frustration of leaky seals and dull blades without forcing a full appliance replacement—making it a smart longevity play for budget-conscious households.

In real-world use, the 4-point blade proves more than capable of tackling frozen fruit, ice cubes, and fibrous greens, though it won’t match the vortex efficiency of newer high-torque models. The dual rubber O-rings provide excellent sealing across multiple blends, resisting warping even after repeated dishwasher cycles. However, it’s worth noting the kit excludes the coupling stud, so if yours is damaged, you’ll need to source it separately. Installation is intuitive, but ensuring proper blade alignment is key to avoiding wobble during high-speed operation.

Compared to the Anbige Blend-N-Go kit, this model focuses purely on core performance rather than portability or convenience. It’s best suited for users who want maximum value from their existing blender base and prioritize function over flash. While the B08DHVGG2K offers more components, this kit strikes a better balance for those needing a straightforward, affordable performance refresh—delivering solid engineering at a fraction of the cost of a new unit.

When your Oster blender starts leaking or struggles with ice, this value-packed replacement kit steps in as a seamless fix—offering a complete bottom-end rebuild at a price that feels like a steal. The food-grade stainless steel blade delivers sharp, consistent blending, while the high-impact ABS plastic base holds up to daily abuse without cracking. It’s engineered to solve one of the most common pain points: gradual performance decline due to worn seals and dull blades, giving older units a near-factory revival.

Testing confirms the blade excels at smoothie prep and juice blending, maintaining torque even with dense ingredients like kale and frozen mango. The BPA-free construction adds peace of mind, especially for families blending baby food or daily health drinks. Installation is tool-free and takes under five minutes, but users should double-check blade orientation to prevent misalignment. While it handles standard 5–6 cup jars with ease, it’s not built for heavy-duty, commercial-style loads that demand prolonged high-speed runs.

Priced lower than most competitors, this kit outperforms its cost—especially when stacked against the pricier Anbige portable option. It’s a smarter choice than replacing the entire blender, particularly when compared to the B0CDP4LZG5, which offers similar materials but at a slight premium. For the practical home user who values reliability and affordability, this kit delivers essential performance restoration without unnecessary extras.

If ice-crushing power is your blender’s reason for existing, this kit is the precision upgrade your Oster needs to reclaim its former glory. The 304 stainless steel 4-point blade is engineered for maximum ice fragmentation, delivering a finer crush than many stock blades, while the inclusion of a coupling stud and slinger pin ensures full drivetrain integrity—something most kits overlook. It solves the hidden culprit behind weak blending: worn drive components that slip under load, robbing power before it reaches the blade.

Real-world testing shows a dramatic improvement in smoothie texture, especially with frozen cocktails and thick protein shakes. The four included O-rings mean you’re stocked for multiple replacements, extending the kit’s lifespan. The high-impact plastic base locks securely and resists stress fractures, even after repeated tightening. However, like all aftermarket parts, fitment depends on exact model compatibility—users of newer Oster Pro or Versa models will need to look elsewhere.

Compared to the B099WGYG1C, this kit offers superior completeness, making it ideal for users doing a full maintenance overhaul. It’s the go-to for serious home blenders who treat their appliance like a kitchen workhorse. While it costs slightly more than basic kits, the inclusion of the slinger pin and extra seals gives it better long-term value than models missing critical drivetrain pieces.

For those who hate wasting ingredients or blending oversized batches, this compact 8oz mini jar is a game-changer—perfect for single-serve needs like baby food, spice grinding, or morning protein shots. Made to replace Oster’s #4937, it snaps securely onto compatible bases and delivers efficient blending in a fraction of the space. It solves the common frustration of using a 5-cup jar for a single tablespoon of pesto—reducing cleanup, waste, and motor strain.

The BPA-free plastic is lightweight yet durable, surviving repeated use and dishwasher cycles without clouding. It handles coffee beans, nuts, and soft fruits with ease, though it’s not designed for thick ice blends or high-volume tasks. The 2-pack format adds excellent value, letting users keep one jar prepped while the other is in use or being cleaned. However, it requires the separate purchase of a blade assembly, which isn’t included—so it’s not a standalone solution.

Compared to the Anbige Blend-N-Go, this is a simpler, more focused tool—ideal for precision small-batch prep rather than on-the-go smoothies. It’s the smart choice for parents, coffee enthusiasts, or anyone who values efficiency and portion control. While it lacks portability features, its dedicated mini-jar functionality outshines larger, less versatile options—making it a niche but essential upgrade for targeted blending tasks.

This comprehensive 8-piece kit stands out as the most complete drivetrain rebuild solution for classic Oster owners—delivering not just a blade, but two specialized ice blades, multiple seals, and critical drive components in one package. The reversing blade technology is a standout, leveraging the blender’s motor oscillation to pull ingredients downward for smoother, more consistent blends—a feature typically found only in premium models. It’s engineered to solve the root causes of poor blending: dull blades, worn seals, and slipping couplings.

In testing, the 6-blade pro crusher outperforms standard 4-blade models in ice smoothness, producing a slushie-like texture with minimal effort. The inclusion of both 4961 and 4980 blades means users can experiment with performance tuning based on their jar size and motor strength. All parts fit snugly, with the high-impact base and four O-rings ensuring leak-free operation. However, it’s not compatible with the In2uitive series, so double-check your model before purchase.

Compared to the B09FYQ9W85, this kit offers far greater versatility and longevity, making it the best choice for users who want one-time restocking of all critical wear parts. It’s ideal for frequent blenders or those maintaining multiple Oster units. While pricier than basic kits, its breadth of components and performance edge make it the most future-proof investment in the lineup—delivering near-professional blending capability from a home appliance.

For the on-the-go smoothie lover, this Blend-N-Go kit transforms your Oster blender into a portable nutrition station—letting you blend directly in the cup and walk out the door. The 20oz BPA-free jar comes fully equipped with a blade assembly, lid, and sealing rings, solving the hassle of transferring drinks to travel bottles. It’s a lifestyle upgrade for busy professionals, gym-goers, or parents needing quick, mess-free meals.

The blade delivers solid performance for soft fruits, powders, and liquids, though it struggles with frozen chunks or fibrous greens. The lid seals tightly, preventing leaks in bags or cup holders, and the cup fits most car cup holders. Installation is quick, and cleanup is simple—just rinse and go. However, the plastic isn’t as durable as glass jars, and prolonged use with abrasive ingredients may cause wear.

Compared to the Joyparts mini jar, this is designed for mobility, not precision grinding. It’s the clear choice for active users who value convenience over raw power. While it costs more than basic replacement kits, its portable functionality and complete setup make it uniquely valuable—offering a level of convenience no standard jar can match.

Sometimes, the smallest part causes the biggest headache—and this 4-pack of rubber gaskets is the simplest, most cost-effective fix for a leaking Oster blender. Made from food-safe, high-quality rubber, these O-rings create a watertight seal between the blade and jar, eliminating the drip-drip frustration that plagues aging units. It’s the ideal solution for users who’ve already replaced blades but still face leaks—often due to compressed or cracked gaskets.

Each ring fits snugly and withstands repeated use, including dishwasher cleaning, without losing elasticity. The 1.95-inch inner diameter matches most standard Oster jars, but users should verify sizing before purchase. Replacing the gasket every six months, as recommended, keeps performance optimal and prevents motor strain from wobbling blades. It’s a minor maintenance step that extends the life of your entire blender.

Compared to full kits like B08DHVGG2K, this product focuses on one critical function—sealing—making it the smartest buy for preventative care. It’s perfect for owners who already have spare blades but need fresh seals. While it doesn’t offer the flash of a full rebuild, its ultra-affordable price and essential function make it the most practical long-term accessory—delivering outsized value from a tiny part.