Chain size
.325" · .050" · 81 DL chain: which saws it fits
A .325" pitch, .050" gauge chain with 81 drive links. It is most often found on 20" bars, and fits 45 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.
Pitch.325"
Gauge.050"
Drive links81
Typical bar20"
Oregon chains in this size: 20LGX081G, 20LPX081G, 20LPX081X2
Popular saws that take this chain
Confirm it's your size
- Read the bar stamp. Near the tail of the guide bar you'll usually find pitch, gauge and drive links, e.g.
.325 .050 81. Some bars stamp the Oregon bar number instead — look it up on oregonproducts.com. - Count the drive links on your old chain — the teeth that ride inside the bar groove, not the cutters. It must be exactly 81.
- 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
- .325" · .050" · 80 DL — same pitch and gauge, shorter loop (usually 20" bars)
- .325" · .063" · 81 DL — same pitch and length, thicker drive links; it won't sit right in a .050" groove
All 45 models, by brand
STIHL 45 models
- MS 271 20"
- MS 291 20"
- 024 20"
- 024 Super 20"
- 026 20"
- 026 PRO 20"
- 026P 20"
- 028 20"
- 028 Super 20"
- 029 20"
- 030 20"
- 031 20"
- 032 20"
- 034 20"
- 034 SUPER 20"
- 036 20"
- 036 PRO 20"
- 036 QS 20"
- 039 20"
- 040 20"
- MS 260 20"
- MS 260 Pro 20"
- MS 261 20"
- MS 261 C-M 20"
- MS 261 C-MQ 20"
- MS 261 CQ 20"
- MS 270 20"
- MS 270 C 20"
- MS 270 C-B 20"
- MS 270 CQS 20"
- MS 280 20"
- MS 280 C-BQ 20"
- MS 280 CQS 20"
- MS 290 20"
- MS 291 C-BEQ 20"
- MS 310 20"
- MS 341 20"
- MS 360 20"
- MS 360 C 20"
- MS 360 Pro 20"
- MS 360 QS 20"
- MS 361 20"
- MS 361 C-B 20"
- MS 361 QS 20"
- MS 390 20"
Source: Oregon part-finder fitment data, retrieved 2026-07-06. We list a model here when Oregon recommends a .325" · .050" · 81 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.