FitMatch

The Ryobi OPP1820 takes the Ryobi 8" Titanium Chainsaw Chain RCHT8 (33 drive links) as its chain. Fitment confirmed against the manufacturer's compatibility list.

Your chainsaw

Chainsaw

Confirmed against Ryobi's list

Not yours? Change
RCHT8

Takes the RCHT8

Chain · check the code on your old part.

Ryobi names RCHT8 (8" bar, 33 drive links) for the OPP1820.

Other Ryobi chainsaws that take the RCHT8

Genuine

See seller

Bunnings · 28 Oct

Compatible

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No compatible seller tracked yet

Genuine: made by Ryobi. Compatible: another brand.

Compare 2 sellers

AUD, before delivery. Each price shows when it was checked.

BunningsGenuine · no price recordedSee priceOpen
Ryobi AustraliaGenuine · no price recordedSee priceOpen

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 OPP1820

Watch the guide or follow the steps.

18V ONE+ Brushless Chainsaw: How to assemble & Safely use · RYOBI® TV (official)
  1. 1Remove the battery pack and put on heavy-duty gloves.
  2. 2Loosen the chain tension: on tool-free models turn the chain tensioner knob anticlockwise to unlock the adjustment ring, then turn the ring anticlockwise.
  3. 3Loosen and remove the sprocket cover, then take off the bar and old chain.
  4. 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).
  5. 5Place the loop around the drive sprocket, lower the bar onto the bolt and refit the sprocket cover.
  6. 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:
RCHT8

Sellers list any of these; they are the same part.

About your OPP1820

Ryobi chainsaw — 18V ONE+. Its chain is the 8" Titanium Chainsaw Chain RCHT8 (33 drive links), part RCHT8.

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 9 Ryobi models

OPP18. Ryobi names RCHT8 (8" bar, 33 drive links) for the OPP18.

OPP1820. Ryobi names RCHT8 (8" bar, 33 drive links) for the OPP1820.

OPP1850. Ryobi names RCHT8 (8" bar, 33 drive links) for the OPP1850.

R18CHS20. Ryobi names RCHT8 (8" bar, 33 drive links) for the R18CHS20. R18CHS22 is the 2Ah kit of the same saw.

R18CHS24. Ryobi gives this kit an 8" bar, 3/8" pitch, 0.043" gauge and 33 drive links, the same as the R18CHS20. Check the drive links on your old chain.

R18PPS120. Ryobi names RCHT8 (8" bar, 33 drive links) for the R18PPS120.

R18PPS130. Ryobi's manual names an 8" chain with 33 drive links (Powerfit PWFTCA801), the same size as RCHT8. R18PPS132 is the 2Ah kit.

R18PPSA20. Ryobi names RCHT8 (8" bar, 33 drive links) for the R18PPSA20.

RPP3600. Ryobi names RCHT8 (8" bar, 33 drive links) for the RPP3600. R36PPS114 is the 4Ah kit of the same pole pruner.

Common questions
Which chain fits the Ryobi OPP1820?
The Ryobi OPP1820 takes the Ryobi 8" Titanium Chainsaw Chain RCHT8 (33 drive links). Ryobi names RCHT8 (8" bar, 33 drive links) for the OPP1820.
Where can I buy the RCHT8 in Australia?
We link to 2 Australian sellers for the RCHT8; the seller's page shows the current price.
How do I fit the RCHT8 in a Ryobi OPP1820?
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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