Oregon S55 chain: what it fits and what the code means
S55 is a 3/8" LP pitch, .050" gauge chain with 55 drive links. It fits 90 saws listed below.
What S55 is
- Pitch
- 3/8" LP
- Gauge
- .050"
- Drive links
- 55
The letter S is the chain type, the number 55 is the drive link count.
Buy this chain
Ad
As an Amazon Associate we earn from qualifying purchases. As an eBay Partner Network affiliate we may earn a commission from qualifying sales on eBay.
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 55 drive links:
| Code | Type | Pitch | Gauge | Family |
|---|---|---|---|---|
| S55 | 91PX | 3/8" LP | .050" | AdvanceCut |
| R55 | 90PX | 3/8" LP | .043" | AdvanceCut |
| T55 | 91VXL | 3/8" LP | .050" | VersaCut |
T55: same pitch and gauge as S55, different cutter. Either fits the same bar. R55: different pitch or gauge. Not a substitute for S55.
Saws that take S55
McCulloch · 16
Wen · 3
Poulan · 1
Questions people ask
What does S55 mean on an Oregon chain?
S is the chain series (91PX, AdvanceCut: 3/8" LP pitch, .050" gauge). 55 is the number of drive links.
What bar length is S55?
Usually 16". What matters is the drive link count, 55: count the links on your old chain rather than going by the inches.
What file do I need for S55?
A 5/32" round file.