What this is
Two replacement chains in an unusual 10” size: 3/8” low-profile pitch, .050” gauge and 39 drive links. It is the factory size on the Harbor Freight Atlas 56934 cordless pole saw (Trilink CL15039X), the Makita EY2650H25H pole pruner and EY401MP attachment, the Echo PPF-225 and the Poulan PLN1510. Oregon’s equivalent is 91PX039G.
Count the links: 39, not 40
Most 10” chains have 40 drive links, and they are easy to mix up with this one:
- Remington 108526-01 and 106890-02 — Oregon lists them on a 40-link chain.
- Echo PPF-225 with the narrow-kerf bar — that bar takes a thinner .043” chain.
- Echo PPT-266, PPT-280 and PPF-280 — ship with a 12” bar and a 44-link chain.
- Harbor Freight Atlas 59209 (80V) — uses a 1/4” pitch chain.
Lay your old chain flat and count the drive links before ordering.
Fitting it
Harbor Freight’s manual for the 56934 asks for an identical replacement chain and recommends replacing the drive sprocket along with the chain. Echo’s manual says the chain and bar gauge must match and to use only the bar and chain combinations it lists.
