Chain size

3/8" LP · .050" · 61 DL chain: which saws it fits

A 3/8" Low Profile pitch, .050" gauge chain with 61 drive links. It is most often found on 18" bars, and fits 2 chainsaw and pole-saw models from 1 brands in Oregon's fitment data. Bar length alone doesn't decide fit — all three numbers have to match your saw.

Pitch3/8" Low Profile
Gauge.050"
Drive links61
Typical bar18"

Oregon chains in this size: 91PX061G

Confirm it's your size

  1. Read the bar stamp. Near the tail of the guide bar you'll usually find pitch, gauge and drive links, e.g. 3/8 LP .050 61. Some bars stamp the Oregon bar number instead — look it up on oregonproducts.com.
  2. Count the drive links on your old chain — the teeth that ride inside the bar groove, not the cutters. It must be exactly 61.
  3. Low profile is not full profile. 3/8" LP and 3/8" full-profile chains share the "3/8" but are not interchangeable.
  4. If the stamp is worn off, the owner's manual lists the bar and chain; find it on the manufacturer's support site.

Easy to mix up with

All 2 models, by brand

STIHL 2 models

Source: Oregon part-finder fitment data, retrieved 2026-07-06. We list a model here when Oregon recommends a 3/8" LP · .050" · 61 DL chain for one of its bar lengths; we haven't fitted each saw ourselves. Some bar configurations in the source don't give a drive-link count and aren't included — if your saw isn't listed, count your chain.