Stihl MS231 Chain & Bar Guide
42.6cc
Specs
Pitch .325"must match bar + sprocket
Gauge .050"must match bar groove
Bar range 16"–18"cutting length range
Sprocket 7-tooth rim.325" pitch
Drive links by bar length
16"66 DL18"74 DL
Discontinued mid-range saw. Predecessor to MS251. Uses .325" pitch — not interchangeable with 3/8" saws.
Wrong pitch, gauge, or drive link count can throw a chain or damage your saw. Check your saw's markings before ordering. More info
Source: Stihl service manual; Oregon cross-reference guideLast verified: 2026-04-21
Compatible Guide Bars4
Some links are affiliate links. We earn a small commission at no extra cost to you.
.050" gauge
16"
CompatibleStihl
Rollomatic E (.325")
3003-000-5209
16".325".050"66 DL10-tooth sprocket
Stihl OEM .325" bar — fits MS251/261/271/291. Verify part number.
CompatibleOregon
SpeedCut Pro-Lite (.325")
120SDEA040
16".325".050"66 DL10-tooth sprocket
Oregon aftermarket .325" bar — fits Stihl large-mount saws. Verify part number.
18"
CompatibleStihl
Rollomatic E (.325")
3003-000-5213
18".325".050"74 DL10-tooth sprocket
Stihl OEM .325" bar — fits MS261/271/291. Verify part number.
CompatibleOregon
SpeedCut Pro-Lite (.325")
140SDEA040
18".325".050"74 DL10-tooth sprocket
Oregon aftermarket .325" bar — fits Stihl large-mount saws. Verify part number.
Compatible Chains11
Some links are affiliate links. We earn a small commission at no extra cost to you.
.050" gauge chains
For 16" bar – 66 drive links
CompatibleStihl
26RS3 66
3605-000-0066
.325".050"66 DLFull chisel
RS3 (Rapid Super 3)
Full chisel .325" .050" — fits 16" bar on MS251/261/271/291 and Husqvarna 450.
CompatibleStihl
26RM3 66
3636-000-0066
.325".050"66 DLSemi chisel
RM3 (Rapid Micro 3)
Semi chisel .325" .050" — stays sharp longer in dirty/frozen wood. Fits 16" bar.
CompatibleOregon
21BPX 66
21BPX066G
.325".050"66 DLSemi chisel
BPX (semi chisel low-kickback)
Oregon semi chisel .325" .050" — fits 16" bar on MS261/271/291 and Husqvarna 450.
CompatibleOregon
21LGX 66
21LGX066G
.325".050"66 DLFull chisel
LGX (full chisel low-kickback)
Oregon full chisel .325" .050" — fast cut for clean wood. Fits 16" bar.
CompatibleHusqvarna
H30 66
H30-66E
.325".050"66 DLSemi chisel
H30 semi chisel
Husqvarna branded .325" .050" semi chisel — fits 16" bar on 450 Rancher and Stihl .325" saws.
For 18" bar – 74 drive links
CompatibleStihl
26RS3 74
3605-000-0074
.325".050"74 DLFull chisel
RS3 (Rapid Super 3)
Full chisel .325" .050" — fits 18" bar on MS261/271/291.
CompatibleStihl
26RM3 74
3636-000-0074
.325".050"74 DLSemi chisel
RM3 (Rapid Micro 3)
Semi chisel .325" .050" — stays sharp longer in dirty/frozen wood. Fits 18" bar.
CompatibleOregon
21BPX 74
21BPX074G
.325".050"74 DLSemi chisel
BPX (semi chisel low-kickback)
Oregon semi chisel .325" .050" — fits 18" bar.
CompatibleOregon
21LGX 74
21LGX074G
.325".050"74 DLFull chisel
LGX (full chisel low-kickback)
Oregon full chisel .325" .050" — fits 18" bar.
CompatibleHusqvarna
H30 74
H30-74E
.325".050"74 DLSemi chisel
H30 semi chisel
Husqvarna branded .325" .050" semi chisel — fits 18" bar.
CompatibleHusqvarna
H30 72
H30-72
.325".050"72 DLSemi chisel
H30 semi chisel
Husqvarna .325" .050" 72DL — fits 18" bar on 440/445/450/545. Different drive link count from H30-74E.