Stihl MSA 300 C-O chain size

Chainsaw drawing: the bar and chain are the parts this page is about

The chain for your Stihl MSA 300 C-O

Which bar is on your saw?

14" bar

Pitch
3/8"
Gauge
.050"
Drive links
50

16" bar

Pitch
3/8"
Gauge
.050"
Drive links
55

Buy this chain

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3/8 pitch, .050 gauge, 50 drive links

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Check pitch, gauge and drive links on the listing before you order. How this works

All bar lengths for the Stihl MSA 300 C-O
Chain for each bar length
BarPitchGaugeDrive links
14"3/8".050"50
16"3/8".050"55

The Stihl MSA 300 C-O takes 3/8" pitch, .050" gauge chain. Drive links by bar length: 14" bar 50, 16" bar 55.

Stihl genuine part numbers

If you prefer the maker's own parts, these are the numbers to ask for at a dealer.

Stihl bar and chain part numbers
BarChain part no.Bar part no.Pitch / gaugeDrive links
14"63 PS3 503005 000 48093/8" / .050"50
16"63 PS3 553005 000 48133/8" / .050"55

Check the chain on your saw

Drawing: pitch is the distance between three rivets divided by two
Pitch Measure across three rivets and divide by two. Common pitches are 1/4", .325", 3/8" and .404".
Drawing: gauge is the thickness of the drive link in the bar groove
Gauge The thickness of the drive link that rides in the bar groove: .043", .050", .058" or .063".
Drawing: count the drive links, the tabs under the chain
Drive links Lay the chain flat and count the tabs underneath. Mark one with a paint pen so you know where you started.
Find pitch and gauge from the number on a drive link
Type the number on a drive link
See all stamp numbers
Drive link stamp number to pitch and gauge
StampPitchGauge
113/4".122"
16.404".063"
18.404".080"
20.325".050"
21.325".058"
22.325".063"
251/4".050"
26.404".058"
27.404".063"
33.325".050"
34.325".058"
35.325".063"
50.404".050"
51.404".058"
52.404".063"
58.404".058"
59.404".063"
68.404".063"
723/8".050"
733/8".058"
753/8".063"
80.325" LP.043"
903/8" LP.043"
913/8" LP.050"
95.325".050"

Questions people ask

What size chain does a Stihl MSA 300 C-O take?

The Stihl MSA 300 C-O takes 3/8" pitch, .050" gauge chain. Drive links by bar length: 14" bar 50, 16" bar 55.

How many drive links is a Stihl MSA 300 C-O chain?

It depends on the bar: 50 on a 14" bar, 55 on a 16" bar. The bar length is usually printed near the mount.

Can I use a chain with the same length but different pitch?

No. Pitch and gauge have to match the bar and sprocket, and the drive link count has to match the bar. A chain that is off on any of the three will not fit or run safely.

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