The Ryobi OCS1830BL takes the Ryobi 12" Titanium Chainsaw Chain RCHT12 (45 drive links) as its chain. Fitment confirmed against the manufacturer's compatibility list.

Your chainsaw
Ryobi OCS1830BL
Chainsaw
Confirmed against Ryobi's listConfirmed against Ryobi's own compatibility list
Not yours? Change
Takes the RCHT12 chain
12" Titanium Chainsaw Chain RCHT12 (45 drive links) · check the code on your old part before ordering.
Ryobi names RCHT12 (12" bar, 45 drive links) for the OCS1830BL. RCS1830BLX4 is the 4Ah kit of the same saw.

Your chainsaw
Chainsaw
Confirmed against Ryobi's listConfirmed against Ryobi's own compatibility list

Takes the RCHT12
Chain · check the code on your old part.
Ryobi names RCHT12 (12" bar, 45 drive links) for the OCS1830BL. RCS1830BLX4 is the 4Ah kit of the same saw.
Other Ryobi chainsaws that take the RCHT12
GenuineGenuine Ryobi
See seller
Ryobi Australia · 28 OctRyobi Australia · checked 28 Oct
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
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.
Compare 2 sellers
AUD, before delivery. Each price shows when it was checked.
How long it lasts
Replace it when it cuts noticeably worse, Ryobi says.
After replacing: No reset needed. Check the chain tension often while a new chain beds in.
How to change the chain in your Ryobi OCS1830BL
Watch the guide or follow the steps.
- 1Remove the battery pack and put on heavy-duty gloves.
- 2Loosen the chain tension: on tool-free models turn the chain tensioner knob anticlockwise to unlock the adjustment ring, then turn the ring anticlockwise.
- 3Loosen and remove the sprocket cover, then take off the bar and old chain.
- 4Fit the new chain in the bar groove with a loop at the back of the bar and the cutters facing the direction of rotation (turn the loop over if they face backwards).
- 5Place the loop around the drive sprocket, lower the bar onto the bolt and refit the sprocket cover.
- 6Tension the chain (Ryobi gives a 4–5.5 mm gap between the drive teeth and the bar on the 12" saw), then lock the tensioner knob.
Every number this part goes by
- Retail name:
- RCHT12
Sellers list any of these; they are the same part.
About your Ryobi OCS1830BL

Ryobi chainsaw — 18V ONE+. Its chain is the 12" Titanium Chainsaw Chain RCHT12 (45 drive links), part RCHT12.
Where the model number is: The model is on the rating plate on the saw's housing (STIHL MS 170, Husqvarna 135 Mark II, Ryobi OCS1830BL). The chain's code is stamped on the drive links or printed on its box, and the bar length is on the bar.
Fits these 3 Ryobi models
Ryobi3 models
OCS1830BL. Ryobi names RCHT12 (12" bar, 45 drive links) for the OCS1830BL. RCS1830BLX4 is the 4Ah kit of the same saw.
R36XCHS10. Ryobi names RCHT12 (12" bar, 45 drive links) for the R36XCHS10. R36XCHS14 is the 4Ah kit of the same saw.
R36XCHS114. Ryobi gives this kit a 12" bar, 3/8" pitch, 0.043" gauge and 45 drive links, the same as the R36XCHS10. Check the drive links on your old chain.
Common questions
- Which chain fits the Ryobi OCS1830BL?
- The Ryobi OCS1830BL takes the Ryobi 12" Titanium Chainsaw Chain RCHT12 (45 drive links). Ryobi names RCHT12 (12" bar, 45 drive links) for the OCS1830BL. RCS1830BLX4 is the 4Ah kit of the same saw.
- Where can I buy the RCHT12 in Australia?
- We link to 2 Australian sellers for the RCHT12; the seller's page shows the current price.
- How do I fit the RCHT12 in a Ryobi OCS1830BL?
- 6 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- A blunt or stretched chain cuts slowly, throws dust instead of chips, and makes the saw harder to control.
- Is there anything to reset afterwards?
- No reset needed. Check the chain tension often while a new chain beds in.
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