Oregon S50 chain: what it fits and what the code means
S50 is a 3/8" LP pitch, .050" gauge chain with 50 drive links. It fits 90 saws listed below.
What S50 is
- Pitch
- 3/8" LP
- Gauge
- .050"
- Drive links
- 50
The letter S is the chain type, the number 50 is the drive link count.
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Check pitch, gauge and drive links on the listing before you order. How this works
Same length, different chain
The number is the length; the letter is the chain. These all have 50 drive links:
| Code | Type | Pitch | Gauge | Family |
|---|---|---|---|---|
| S50 | 91PX | 3/8" LP | .050" | AdvanceCut |
| R50 | 90PX | 3/8" LP | .043" | AdvanceCut |
| T50 | 91VXL | 3/8" LP | .050" | VersaCut |
T50: same pitch and gauge as S50, different cutter. Either fits the same bar. R50: different pitch or gauge. Not a substitute for S50.
Saws that take S50
McCulloch · 17
Remington · 5
Questions people ask
What does S50 mean on an Oregon chain?
S is the chain series (91PX, AdvanceCut: 3/8" LP pitch, .050" gauge). 50 is the number of drive links.
What bar length is S50?
Usually 14". What matters is the drive link count, 50: count the links on your old chain rather than going by the inches.
What file do I need for S50?
A 5/32" round file.