The GARDENA SILENO minimo 250 takes the GARDENA robotic lawnmower blade kit 4087-20 (9 blades and screws) as its blade; Australian sellers list it from A$2.56 each as of 27 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your robot mower
GARDENA SILENO minimo 250
Robot mower
Confirmed against GARDENA's listConfirmed against GARDENA's own compatibility list
Not yours? Change
Takes the 4087-20 blade
robotic lawnmower blade kit 4087-20 (9 blades and screws) · check the code on your old part before ordering.
Takes 3 blades and 3 screws; replace all three at once.
Your robot mower
Robot mower
Confirmed against GARDENA's listConfirmed against GARDENA's own compatibility list
Takes the 4087-20
Blade · check the code on your old part.
Takes 3 blades and 3 screws; replace all three at once.
GenuineGenuine GARDENA
$2.56 each
9-pack $23.00
Harvey Norman · 27 OctLowest genuine · Harvey Norman · checked 27 Oct
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by GARDENA. Compatible: another brand.Genuine is made by GARDENA. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest price · $2.56 each · 9-pack $23.00
Harvey Norman. 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 3 sellers
AUD, before delivery. Each price shows when it was checked.
Genuine GARDENA
3 sellers
Opens Harvey Norman in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Replace it every 4 to 7 weeks, GARDENA says; check them weekly while the mower is new, and replace all 3 blades and screws together.
After replacing: No reset needed. GARDENA says to replace the screws every time you replace the blades.
How to change the blade in your GARDENA SILENO minimo 250
Watch the guide or follow the steps.
- 1Push STOP, then hold ON/OFF for 3 seconds until the LED on the keypad goes off. Wear protective gloves.
- 2Turn the mower over onto a soft, clean surface so the blade disc faces up.
- 3Undo the 3 screws with a screwdriver and remove the 3 blades.
- 4Fit new GARDENA blades with the new screws from the kit. Replace all three together; used screws can wear and let a blade come loose.
- 5Check that the blades pivot freely.
Every number this part goes by
- Retail name:
- 4087-20
- Retail name:
- 966809501
- Retail name:
- G4087-20
Sellers list any of these; they are the same part.
About your GARDENA SILENO minimo 250
GARDENA robot mower — SILENO minimo. Its blade is the robotic lawnmower blade kit 4087-20 (9 blades and screws), part 4087-20.
Where the model number is: The model is on the rating label underneath the mower or under its top cover; it reads like Automower 315X or WR139E. Switch the mower off before you lift it: the blades are sharp.
Fits this GARDENA model
GARDENA1 model
Takes 3 blades and 3 screws; replace all three at once.
Common questions
- Which blade fits the GARDENA SILENO minimo 250?
- The GARDENA SILENO minimo 250 takes the GARDENA robotic lawnmower blade kit 4087-20 (9 blades and screws). Takes 3 blades and 3 screws; replace all three at once.
- Where can I buy the 4087-20 in Australia?
- We track 3 Australian sellers for the 4087-20; the lowest listed price when we last checked was A$2.56 at Harvey Norman. Prices are re-checked daily and dated on this page.
- How do I fit the 4087-20 in a GARDENA SILENO minimo 250?
- 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 tear the grass tips, which then brown, and the mower works harder on every run.
- Is there anything to reset afterwards?
- No reset needed. GARDENA says to replace the screws every time you replace the blades.
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