§ Fitment Guide
McCulloch CS50S chain size & replacement chart
The McCulloch CS50S takes a .325" pitch, .050" / 1.3mm gauge chain. Below: every factory bar length with its exact drive-link count, cross-referenced to Oregon part numbers, plus the OEM parts list.
Fitment matrix
| Bar length | Pitch | Gauge | Drive links | Oregon chains | Bars / combos |
|---|---|---|---|---|---|
| 33cm | .325" | .050" / 1.3mm | — | 576787M95VPX056E20LPX056E95TXL056EQ95TXL056E | 130MLBK095130TXLBK095578707581621 |
| 38cm | .325" | .050" / 1.3mm | — | 57678820LGX064EM95VPX064E20BPX064E20LPX064E95TXL064EQ95TXL064E | 150MLBK095150MPBK095150TXLBK095578708581620 |
| 45cm | .325" or 325" | .050" / 1.3mm | — | 95TXL072E20LGX072EQ20BP072E20BPX072EM95VPX072E20LPX072EQ95TXL072E | 180MLBK095180PXBK095180MPBK095180TXLBK095180VXLGK095578739581619 |
| 50cm | .325" | .050" / 1.3mm | — | 95TXL078E | 200TXLBK095 |
Source: Oregon part-finder (EU), retrieved 2026-07-06. Part numbers link to the manufacturer's spec page. Always confirm drive-link count against your current chain before ordering.
Compatible chains in our shop
How to confirm the fit
- Read your bar. The pitch and gauge are stamped on the guide bar near the saw body — e.g.
3/8" LP .050". - Count drive links. Lay the old chain flat and count the teeth that ride inside the bar groove. This number must match exactly; length in inches is not enough.
- Match all three. Pitch, gauge and drive-link count all have to agree with a row in the table above. Two of three is not a fit.
Watch: how to identify chain pitch and gauge
Oregon Products: Identifying Chain Pitch and Chain Gauge Official video from Oregon Products, the manufacturer behind the cross-reference part numbers above.
Official McCulloch resources
- McCulloch manuals & IPL — owner's manual for the CS50S, including tensioning and maintenance intervals.
- McCulloch parts diagrams — exploded parts diagrams and OEM part numbers.
FAQ
What size chain does a McCulloch CS50S take?
The McCulloch CS50S runs a .325" pitch, .050" / 1.3mm gauge chain. Available bar lengths: 33cm, 38cm, 45cm, 50cm. Match the drive-link count to your bar (see the table above).
How do I know which gauge my CS50S chain is?
Check the number stamped on your guide bar near the tail, or measure the drive-link thickness with calipers. Common gauges for the CS50S are .050" / 1.3mm.
Can I put a longer bar on my McCulloch CS50S?
Oregon lists 33cm, 38cm, 45cm, 50cm bars for the CS50S. Stay within this range — a longer bar than the engine is rated for cuts slowly and accelerates wear.