§ Fitment Guide
McCulloch 4600 chain size & replacement chart
The McCulloch 4600 takes a 3/8" Low Profile™ or .325" pitch, .050" / .058" / 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 |
|---|---|---|---|---|---|
| 16" | 3/8" Low Profile™ or .325" | .050" / .058" / 1.3mm | — | — | — |
| 18" | .325" or 325" | .050" / .058" / 1.3mm | — | — | — |
| 20" | .325" or 3/8" | .050" / .058" | — | — | — |
| 35cm | 3/8" Low Profile™ | .050" / 1.3mm | — | 56444191P052E91PX052E91VXL052EQ91VG052EM91VXL052E | 140SXEA041140SDEA041543437561601 |
| 40cm | 3/8" Low Profile™ or .325" | .050" / .058" / 1.3mm | — | 56444391P056E91PX056EM91VXL056E91VXL056EQ91VG056E20LGX066EQ20BP066E20BPX066E20LPX066E | 160SXEA041160SPEA041160SDEA041160MLBK095160TXLBK095160VXLGK095168VXLGK095543483561660 |
| 45cm | .325" or 325" | .050" / .058" / 1.3mm | — | 20LGX072EQ20BP072E20BPX072E20LPX072E | 180MLBK095180PXBK095180MPBK095180TXLBK095180VXLGK095188PXBK095188SFGK095188PXLBK095188SLBK095188SLGK095188VXLGK095 |
| 50cm | .325" or 3/8" | .050" / .058" | — | — | 200PXBK095208PXBK095208VXLGK095 |
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 4600, including tensioning and maintenance intervals.
- McCulloch parts diagrams — exploded parts diagrams and OEM part numbers.
FAQ
What size chain does a McCulloch 4600 take?
The McCulloch 4600 runs a 3/8" Low Profile™ or .325" pitch, .050" / .058" / 1.3mm gauge chain. Available bar lengths: 16", 18", 20", 35cm, 40cm, 45cm, 50cm. Match the drive-link count to your bar (see the table above).
How do I know which gauge my 4600 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 4600 are .050" / .058" / 1.3mm, .050" / .058", .050" / 1.3mm.
Can I put a longer bar on my McCulloch 4600?
Oregon lists 16", 18", 20", 35cm, 40cm, 45cm, 50cm bars for the 4600. Stay within this range — a longer bar than the engine is rated for cuts slowly and accelerates wear.