The Ninja TB401 takes the Ninja Single Serve Blade Assembly (Detect TB301, TB401) (part 408KKU300ANZ) as its blade; Australian sellers list it from A$49.99 as of 2 November 2026. Fitment confirmed against the manufacturer's compatibility list.
Your blender
Ninja TB401
Blender
Confirmed against Ninja's listConfirmed against Ninja's own compatibility list
Not yours? Change
Takes the 408KKU300ANZ blade
Single Serve Blade Assembly (Detect TB301, TB401) · check the code on your old part before ordering.
Your blender
Blender
Confirmed against Ninja's listConfirmed against Ninja's own compatibility list
Takes the 408KKU300ANZ
Blade · check the code on your old part.
Other Ninja blenders that take the 408KKU300ANZ
GenuineGenuine Ninja
$49.99
Ninja Australia · 2 NovLowest genuine · Ninja Australia · checked 2 Nov
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by Ninja. Compatible: another brand.Genuine is made by Ninja. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest price · $49.99
Ninja Australia. Every seller we track is listed below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Compare 1 seller
AUD, before delivery. Each price shows when it was checked.
Opens Ninja Australia in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Replace it when a blade is bent or damaged; Ninja says to check the blade assembly before each use and gives no set interval.
After replacing: No reset: Ninja blenders have no blade reminder.
How to change the blade in your Ninja TB401
Watch the guide or follow the steps.
No clear video for this part yet. The steps cover it.
- 1Unplug the motor base. When the blades stop, turn the cup anticlockwise and lift it off.
- 2Turn the cup upright and unscrew the old blade assembly. Hold it only by the outer edge of its base: the blades are sharp.
- 3Check the new blade assembly for bent or damaged blades before you use it.
- 4Fill the cup no higher than the MAX line, place the blade assembly on top and turn it clockwise to seal.
- 5Turn the cup over, line its tabs up with the slots on the base and turn it clockwise until it clicks.
Every number this part goes by
- Retail name:
- 408KKU300
- Retail name:
- 408KKU300ANZ
Sellers list any of these; they are the same part.
About your Ninja TB401
Ninja blender — Ninja Detect. Its blade is the Single Serve Blade Assembly (Detect TB301, TB401), part 408KKU300ANZ.
Where the model number is: The model is on the label under the motor base, and on the box. Unplug the blender first.
Common questions
- Which blade fits the Ninja TB401?
- The Ninja TB401 takes the Ninja Single Serve Blade Assembly (Detect TB301, TB401) (part 408KKU300ANZ).
- Where can I buy the 408KKU300ANZ in Australia?
- We track 1 Australian seller for the 408KKU300ANZ; the lowest listed price when we last checked was A$49.99 at Ninja Australia. Prices are re-checked daily and dated on this page.
- How do I fit the 408KKU300ANZ in a Ninja TB401?
- No tools, a few minutes: 5 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- Blunt blades blend more slowly and leave chunks.
- Is there anything to reset afterwards?
- No reset: Ninja blenders have no blade reminder.
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