The Ryobi RLM46190Y takes the RYOBI swing-back lawn mower blade 2-pack RAC4010 as its blade; Australian sellers list it from A$14.37 as of 31 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your lawn mower
Ryobi RLM46190Y
Lawn mower
Confirmed against Ryobi's listConfirmed against Ryobi's own compatibility list
Not yours? Change
Takes the RAC4010 blade
RYOBI swing-back lawn mower blade 2-pack RAC4010 · check the code on your old part before ordering.
Takes 4 swing-back blades on its blade disc: buy 2 packs of RAC4010 (2 blades each) and replace all four together.
Your lawn mower
Lawn mower
Confirmed against Ryobi's listConfirmed against Ryobi's own compatibility list
Takes the RAC4010
Blade · check the code on your old part.
Takes 4 swing-back blades on its blade disc: buy 2 packs of RAC4010 (2 blades each) and replace all four together.
Other Ryobi lawn mowers that take the RAC4010
GenuineGenuine Ryobi
See seller
Ryobi Australia · 28 OctRyobi Australia · checked 28 Oct
CompatibleCompatible option
$14.37
Power Mowers · 31 OctPower Mowers · checked 31 Oct
Check sellerCheck seller details
Genuine: made by Ryobi. Compatible: another brand.Genuine is made by Ryobi. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest compatibleLowest compatible price · $14.37
Power Mowers. Compare with genuine below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Compare 4 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
2 sellers
Opens Power Mowers in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Replace it straight away when a blade is bent or damaged, as a complete set of four, Ryobi says; Ryobi says not to sharpen these blades but to fit new ones.
After replacing: No reset needed.
How to change the blade in your Ryobi RLM46190Y
Watch the guide or follow the steps.
- 1Stop the mower and let it cool, then disconnect the spark plug wire. Drain the fuel. Wear heavy-duty gloves and wrap the blade edges.
- 2Turn the mower on its side with the carburettor (air filter side) facing up, and wedge a block of wood between the blade disc and the deck.
- 3Undo the disc bolt anticlockwise, take off the disc, then undo the blade lock nuts and remove the old blades, wave washers and bolts.
- 4Fit the four new blades with their raised edges toward the inside of the deck and a wave washer between each blade and the disc. Tighten each nut until secure, then a further 1/6 turn.
- 5Refit the disc with the flat washer and lock washer, and tighten the disc bolt to 35-45 Nm, until the lock washer is flat. Replace all four blades as a set.
Every number this part goes by
- Retail name:
- RAC4010
Sellers list any of these; they are the same part.
About your Ryobi RLM46190Y
Ryobi lawn mower — 46 cm petrol (swing-back blades). Its blade is the RYOBI swing-back lawn mower blade 2-pack RAC4010, part RAC4010.
Where the model number is: The model is on the label on the mower's deck or handle. Disconnect the spark plug lead, or take the battery or safety key out, before you tip the mower: the blade is sharp.
Fits these 9 Ryobi models
Takes 4 swing-back blades on its blade disc: buy 2 packs of RAC4010 (2 blades each) and replace all four together.
Common questions
- Which blade fits the Ryobi RLM46190Y?
- The Ryobi RLM46190Y takes the RYOBI swing-back lawn mower blade 2-pack RAC4010. Takes 4 swing-back blades on its blade disc: buy 2 packs of RAC4010 (2 blades each) and replace all four together.
- Where can I buy the RAC4010 in Australia?
- We track 4 Australian sellers for the RAC4010; the lowest listed price when we last checked was A$14.37 at Power Mowers. Prices are re-checked daily and dated on this page.
- How do I fit the RAC4010 in a Ryobi RLM46190Y?
- 5 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- A blunt blade tears the grass tips, which then brown, and a bent blade makes the mower vibrate and wears the engine or motor.
- Is there anything to reset afterwards?
- No reset needed.
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