Best Oster Blender Blades: 5 Replacements That Fit
Best Oster Blender Blades
Your Oster blender still runs. The motor sounds fine. But the smoothie comes out chunky, or the ice just spins around without breaking, and there’s a dark leak pooling under the jar. That’s the blade assembly talking. It’s the one part of a blender that wears out, and it’s also the part the listing describes as a straightforward swap. So the real question isn’t whether to fix it — it’s which replacement actually fits your machine.
That’s where most people get it wrong. Oster has made countertop blenders for decades, and the jars, blades and base caps changed along the way. A blade that fits a 5-cup glass jar may not fit a 6-cup plastic one. A blade for the Pro 1200 is a different animal from a 4980-style 6-point. And the In2uitive Series sits outside most of this entirely.
So the one thing that separates a good buy from a bad one here is a measurement, not a brand name. Check the blade plate diameter. Check the socket shape. Check your model number against the listing. Do that first and almost every problem disappears.
The second thing is what comes in the box. A blade alone is fine if your gasket is soft and your base cap is intact. But gaskets harden and crack, and a worn gasket is what causes leaks. A kit that includes the sealing rings, the base cap and the coupling pin saves you a second order and a second wait.
Third, know what you’re buying. Most of these are aftermarket parts, and several listings say so plainly. That’s not a flaw — it’s information. You get to decide whether that matters to you.
This guide compares Oster blender blades on fit, build and what’s included. Nothing here depends on a price, because prices move. What doesn’t move is whether the part fits your jar.
| # | Product | Best for | |
|---|---|---|---|
| 1 | MEET JUICE 8-Piece Kit | Best Overall | Check Price |
| 2 | Wadoy 6-Point Blade | Best 6-Point Blade | Check Price |
| 3 | Oster 4961-011 Blade Set | Best Genuine Oster | Check Price |
| 4 | KODRANEX Pro 1200 Blade | Best for Pro 1200 | Check Price |
| 5 | Joyparts 6-Cup Jar | Best Jar and Blade | Check Price |
1. 8-Piece Blender Replacement Parts Kit Compatible with Oster & Osterizer
Best for: Rebuilding a worn jar in one order
This is the fullest kit in the group. You get a 4-point crusher blade, a 6-point Crusher Pro blade, a bottom base cap, a coupling stud slinger pin and four sealing O-ring gaskets. That’s the whole underside of the jar, not just the cutter. The 4-point blade is paired with reversing technology — the motor alternates the blades forward and backward, drawing food and ice down for consistently smooth blending.
Think about what that means on a Tuesday morning. You drop in frozen fruit and ice, and the reversing action keeps the load moving rather than packing it above the blades. And because you get four gaskets, a leak doesn’t end your week — you swap the ring and keep going. The base cap and coupling pin matter too, since those are the parts that crack and strip over years of use.
The trade-off is fit. This kit covers Oster 5 and 6 cup glass or plastic jars and all Oster countertop blenders, but it doesn’t fit the In2uitive Series. It’s also an aftermarket part, and the seller states clearly that it makes no claims to be original Oster.
| What it gives you | What you accept |
|---|---|
| Two blades: 4-point crusher and 6-point Crusher Pro | Not for the In2uitive Series |
| Base cap, coupling pin and four gaskets | Aftermarket part, not original Oster |
| Fits Oster 5 and 6 cup glass or plastic jars | You match your jar size before ordering |
Who it fits: Anyone whose jar leaks and wobbles, not just chops poorly. If the gasket is hard or the base cap is cracked, a blade-only order leaves you stuck.
Who should pass: Owners of an In2uitive Series blender, and anyone who only needs a fresh cutter and already has good seals.
2. Wadoy 6-Point Blade
Best for: A straight blade-and-gasket swap
This is the simple version, done properly. One 4980-style 6-point stainless steel blade assembly and one rubber sealing gasket. That’s it. The listing is unusually careful about compatibility — it tells you to compare the 2.6 in blade plate and the drive socket shape before ordering, and it names the 4980-style assembly as the reference point.
The 6-point design chops, mixes, purees and handles ice or frozen fruit when it’s installed in a compatible blender. The listing also gives real guidance rather than hype: use enough liquid, cut large frozen pieces smaller, and don’t overfill the jar. That’s the honest version of how a 6-point blade behaves. It needs something to carry the load, and it works best when the jar isn’t packed to the rim.
The included gasket is the quiet win. A hardened, cracked ring can cause a leak at the jar base, and this kit replaces it in the same job. Reassembly is straightforward — unplug, remove the jar, unscrew the bottom base, swap the gasket and blade, tighten evenly.
What goes smoothly:
- Everything the repair needs arrives together, so a single job finishes it
- Compatibility guidance is specific: 2.6 in plate, 4980-style assembly
- Works with many 5-6 cup glass or plastic jars
- Stainless steel cutter handles ice and frozen fruit in a compatible blender
What you have to accept:
- Jar, bottom base cap and coupling aren’t included
- Not compatible with the In2uitive Series
3. Oster 4961-011 Black 2-Piece Blender Accessory Set
Best for: Buyers who want the Oster name on the part
This is the genuine article — an Oster-branded set with a blade and a sealing ring, sized for most Oster 5 and 6 cup glass or plastic jars. If you’d rather not think about cross-brand fit at all, this removes that question. The part carries the same name as the blender.
The listing frames it as a refresh: add years to the life of your Oster blender, keep it functioning as it did when you brought it home. That’s a fair description of what a blade and ring swap does. The stainless steel blade is described as delivering perfectly crushed ice every time.
What you’re accepting is scope. Two pieces — blade and ring. No base cap, no coupling pin, no spare gasket. If your jar base is intact and only the cutter and seal are tired, that’s exactly enough. If the base cap is cracked or the coupling is stripped, you’ll be ordering again. The listing claims fit for most Oster 5 and 6 cup glass or plastic jars, and nothing wider is claimed.
Who it fits: Oster owners who want a branded replacement and whose jar base and coupling are still in good shape.
Who should pass: Anyone chasing a leak that comes from the base cap rather than the ring, and anyone who wants spare gaskets on hand.
4. KODRANEX 6-Point Blender Blade Replacement Compatible with Oster Pro 1200
Best for: Oster Pro 1200 owners with a model number
This one is built for a specific machine, and it says. It fits Oster Pro 1200 models BLSTMB-CBG-000, BLSTMB-CBF-000, BLSTMB-BBG-000 and BLSTMB-GTF-000. The blade replaces part number 164160. The gaskets replace 182341-000-842. You get one 6-point stainless steel blade assembly and two gray silicone sealing gaskets.
The dimensions are printed, which is rare and useful. The blade assembly measures about 3.66 inches in diameter and 2.09 inches tall. Each gasket measures 3.7 inches outside and 2.9 inches inside. If you have a ruler and your old assembly, you can settle the fit before you order rather than after.
The spare seal is the practical detail. Seals are a common failure point, so having a spare means the next leak is a quick fix. The cutter is designed for smoothies, shakes, frozen fruit, food prep and ice crushing.
This isn’t universal, and the listing says so in capital letters. Don’t pick it by appearance. Match the model number and the part numbers first.
Snapshot:
- Fits four named Oster Pro 1200 models only
- Replaces blade 164160 and gaskets 182341-000-842
- A spare silicone gasket included, so the next leak is covered
- Blade plate is about 3.66 in across and 2.09 in tall
- 6-point stainless cutter for smoothies, shakes and ice
- Not a universal part — verify your model before ordering
5. Joyparts Replacement parts 6-Cup Glass Jar With Blade
Best for: Replacing the whole jar, not just the blade
Sometimes the blade isn’t the problem — the jar is. A cracked glass jar, a stripped base thread, a lid that no longer seals. This kit replaces the lot: a 6-cup glass jar, a lid, a 6-fin blade, a bottom cap and a gasket. The bottom cap is replacement part 004902-003-NP0.
That’s a different kind of purchase. You’re not refreshing a part, you’re rebuilding the working end of the blender. And because the jar, cap, blade and gasket all arrive together, they’re matched to each other by design rather than by your measuring. For someone whose jar has seen better days, that removes every compatibility guess in one move.
The limit here is the biggest in this comparison, and the listing is blunt about it: this fits most standard Oster blenders, and it doesn’t fit Pro, Master or Versa models. If you own one of those, this isn’t the one. Check your model before anything else.
Who it fits: Standard Oster owners whose glass jar, lid or base cap is damaged, and who’d rather replace the whole assembly than hunt for individual parts.
Who should pass: Pro, Master and Versa owners, and anyone whose jar is fine and only needs a new cutter.
The Decision Filter
Answer one question first: what exactly is failing? If the jar leaks, the seal or base cap is the culprit. If the blend is chunky but nothing leaks, it’s the cutter.
That single answer cuts this list fast. A leak rules out the blade-only options and points you at a kit with gaskets, or at the full jar replacement if the base is damaged too. A dull cutter with a dry, intact jar means you can ignore the fuller kits.
Then check your model. If you own a Pro 1200, only one pick here names your machine. If you own an In2uitive Series, most of this list is closed to you. If you own a Pro, Master or Versa, the jar kit is out.
Most people miss this: the gasket is the part that actually fails first. Buyers spend an hour comparing blade shapes and never look at the rubber ring, which is what’s dripping on the counter.
A worn gasket shows up as cracked or hardened rubber, and replacing it’s the simplest fix on this page. Tighten the jar base evenly afterward, or the new ring won’t seat and you’ll be back where you started.
Count the pieces you’re actually getting before you order. Some kits ship the blade alone. Others add a single gasket, a handful of gaskets, or a base cap and coupling pin. If your base cap is cracked, a set that stops at the blade and gasket leaves you short.
One more trap: don’t pick by appearance. Two six-point blades can differ in plate diameter and drive socket shape, so compare the model, the part number and the dimensions first.
The Quick Checklist
Is the problem a leak, a dull cut, or both at once? A worn, cracked, or hardened gasket is the usual cause of a leak, and replacing it is the fix to try first. A blade that no longer crushes ice calls for a new blade assembly instead.
Do you know your exact blender model number right now? Several kits here fit only named models, and the Pro 1200 is one of them. One kit is built for the My Blend personal blenders and won’t work with the MyBlend Plus. If you can’t name your model, measure before you buy.
Will anyone else in the house be running this blender daily? Kits that throw in extra O-rings mean the next leak is already covered.
Does your jar still seat firmly, or does the base feel loose? A loose base is a separate part from the blade. Some kits include the bottom base cap, the coupling stud slinger pin, or the jar base itself. Check what is in the box before you assume the blade is the whole job.
Are you willing to measure your old blade plate before ordering? One blade plate measures about 2.6 inches across, another about 3.66 inches. A 6-point blade and a 4-point blade aren’t the same part. Compare the plate and the drive socket shape, not the photo.
If the wrong part arrives, can you wait for a replacement? International products have separate terms and are sold from abroad. Order the part you can verify, not the one that looks closest.
Three Regrets Worth Avoiding
Regret #1: Ordering by appearance instead of by number. Several of these blades look alike in photos, and the listings warn against exactly that. A 4980-style assembly, a Pro 1200 blade and a 4-point crusher aren’t interchangeable, even when they photograph the same. The fix is simple: write down your model number and, where the listing gives one, the part number it replaces. Match those before you match the picture.
Regret #2: Replacing the blade and leaving the old gasket in place. A hardened or cracked ring can be a source of a leak at the jar base, and it sits right next to the blade you’re already swapping. Doing half the job means doing it twice. The fix: if the kit includes a gasket, use it in the same session, and consider a kit with spares so the next failure is already covered.
Regret #3: Assuming every Oster part fits every Oster blender. The listings here carve out real exceptions — the In2uitive Series is excluded from several, and the jar kit excludes Pro, Master and Versa models outright. The fix: treat the model list as the first thing you read, not the last, and measure the blade plate when a listing gives you a figure to check against.
If You Want This, Look for That
Buy the part that matches the failure, not the part that looks closest in the photo.
| If you want… | Look for | Avoid |
|---|---|---|
| To stop a leak at the jar base | Kit with sealing gaskets included | Blade-only listings |
| A cutter that handles ice | 6-point stainless assembly | Assuming any blade crushes ice |
| To fix it once and be done | Base cap and coupling included | Reusing a hardened old gasket |
| A guaranteed fit | Your exact model number listed | Buying by appearance alone |
| A spare for next time | Two or more gaskets in the box | Single-gasket kits |
| To replace a cracked jar | Full jar, lid, blade and cap set | Blade shopping for a broken jar |
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Frequently Asked Questions
How do I know which blade fits my Oster blender?
Start with your model number, usually printed on the base or the rating label underneath, then match it against the compatibility list in the listing. Where a listing gives a part number the blade replaces, such as 164160 or 4980-style, compare that too. If the listing prints dimensions, measure your old blade plate with a ruler. Appearance alone isn’t reliable, because several of these assemblies look nearly identical in photos but differ in socket shape and plate size.
Will a replacement blade work with my existing jar and base cap?
It depends on the jar, not just the blender. Most of these blades are built for 5 and 6 cup glass or plastic jars, and the base cap threads onto the jar, so the two have to match. If your base cap is cracked or its threads are stripped, a new blade won’t seal it. Check the cap before you order a blade.
Why does my blender leak after I replace the blade?
The gasket is usually the answer. That rubber ring sits between the jar and the blade plate, and the listing notes it can harden, crack or flatten. A new blade with an old ring can still drip. Install the new gasket with the new blade, and tighten the jar base evenly rather than hard on one side. If it still leaks, the base cap itself may be worn or cross-threaded.
Can these blades crush ice and frozen fruit?
Several are described as doing exactly that. The 6-point stainless designs are listed for ice, frozen fruit, smoothies and shakes. The 4-point crusher blade in the kit uses reversing action to pull food and ice down. The listings also give the practical caveats: use enough liquid, cut large frozen pieces smaller first, and don’t overfill the jar. A blade can only work with what reaches it.
Are these original Oster parts?
Some are, some aren’t, and the listings say which. The Oster 4961-011 set is a genuine Oster accessory. Others are independently manufactured replacements, and at least one states plainly that it makes no claims to be an original Oster product. That doesn’t change what the part does, but it’s worth knowing before you buy, especially if you care about matching the original.
What if the part arrives and doesn’t fit?
Check the listing’s return terms before ordering, since replacement parts are often sold with specific conditions. The better protection is prevention: verify the model number, the part number and the dimensions first. Where a listing includes a measurement like a 2.6 in blade plate or a 3.66 in assembly diameter, use it. A part that measures right and names your model is the one the listing was written for.
How often should I replace the blade and gasket?
There’s no fixed schedule — it depends on how hard you use the blender. The signal is performance: ice stops breaking down, the blend turns lumpy, or you see drips under the jar. When that happens, inspect the gasket first, since it’s the more frequent failure. If the cutter edges feel dull or the assembly wobbles, replace the blade at the same time so you’re not opening the jar twice.
Closing
When two picks still look equal, apply this rule: choose the one whose listing names your model number or part number. A named fit beats a broader claim every time, because the seller has already done the checking you’d otherwise do after the box arrives.
If neither names your model, go with the kit that includes the gasket. The seal is what fails first, and having one on hand settles the next problem before it starts.
Then do one thing: unplug the blender, take the jar off, and look at the underside. Note the blade plate width and count the points. That two-minute check tells you more than any product photo can.
One warning about counting points. A four-point crusher and a six-point blade aren’t interchangeable, and the listings that fit 5 and 6 cup jars split between them. Some kits ship both blades so you’re covered either way.
Watch the model families too. Pro 1200, Master, Versa, and In2uitive each sit outside the standard fit, and a kit that lists one of them usually excludes the others. If your base is one of those, match the part number, not the jar size.
