§ Fitment Guide
Stihl MS 193 chain size & replacement chart
The Stihl MS 193 takes a .325" Low Profile™ pitch, .043" gauge chain. Below: every factory bar length with its exact drive-link count, cross-referenced to Oregon part numbers, plus the OEM parts list.
Fitment matrix
| Bar length | Pitch | Gauge | Drive links | Oregon chains | Bars / combos |
|---|---|---|---|---|---|
| 10" | .325" Low Profile™ | .043" | — | — | 104TXLNA074 |
| 12" | 3/8" Low Profile™ or .325" Low Profile™ | .043" / .050" | 44 | 90PX044X290PX044GR4491PX044G91VXL044X291VXL044GS44T44X3T44 | 124TXLNA074124MLEA074120SXEA074120SDEA074540389 |
| 14" | 3/8" Low Profile™ or .325" Low Profile™ | .043" / .050" | 50 | 90PX050X290PX050GR5091PX050G91VXL050X291VXL050GS50T50X3T50 | 144TXLNA074144MLEA074140SXEA074140SDEA074105667 |
| 16" | 3/8" Low Profile™ or .325" Low Profile™ | .043" / .050" | 55 | 90PX055X290PX055GR55X3R55-21R5591PX055G91PXL055G91VXL055X291VXL055GS55T55X3T55 | 164TXLNA074164MLEA074160SXEA074160SDEA074105668557502 |
Source: Oregon part-finder, retrieved 2026-07-06. Part numbers link to the manufacturer's spec page. Always confirm drive-link count against your current chain before ordering.
How to confirm the fit
- Read your bar. The pitch and gauge are stamped on the guide bar near the saw body — e.g.
3/8" LP .050". - Count drive links. Lay the old chain flat and count the teeth that ride inside the bar groove. This number must match exactly; length in inches is not enough.
- Match all three. Pitch, gauge and drive-link count all have to agree with a row in the table above. Two of three is not a fit.
Watch: how to identify chain pitch and gauge
Oregon Products: Identifying Chain Pitch and Chain Gauge Official video from Oregon Products, the manufacturer behind the cross-reference part numbers above.
Official Stihl resources
- STIHL owner's manuals — owner's manual for the MS 193, including tensioning and maintenance intervals.
FAQ
What size chain does a Stihl MS 193 take?
The Stihl MS 193 runs a .325" Low Profile™ pitch, .043" gauge chain. Available bar lengths: 10", 12", 14", 16". Match the drive-link count to your bar (see the table above).
How do I know which gauge my MS 193 chain is?
Check the number stamped on your guide bar near the tail, or measure the drive-link thickness with calipers. Common gauges for the MS 193 are .043", .043" / .050".
Can I put a longer bar on my Stihl MS 193?
Oregon lists 10", 12", 14", 16" bars for the MS 193. Stay within this range — a longer bar than the engine is rated for cuts slowly and accelerates wear.