Oregon S64 chain: what it fits and what the code means

S64 is a 3/8" LP pitch, .050" gauge chain with 64 drive links. It fits 21 saws listed below.

What S64 is

Pitch
3/8" LP
Gauge
.050"
Drive links
64

The letter S is the chain type, the number 64 is the drive link count.

Buy this chain

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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 64 drive links:

Codes with the same drive link count
CodeTypePitchGaugeFamily
S6491PX3/8" LP.050"AdvanceCut
J6421BPX.325".058"ControlCut

J64: different pitch or gauge. Not a substitute for S64.

Saws that take S64

Questions people ask

What does S64 mean on an Oregon chain?

S is the chain series (91PX, AdvanceCut: 3/8" LP pitch, .050" gauge). 64 is the number of drive links.

What bar length is S64?

Usually 18". What matters is the drive link count, 64: count the links on your old chain rather than going by the inches.

What file do I need for S64?

A 5/32" round file.