§ Fitment Guide
McCulloch 050 chain size & replacement chart
The McCulloch 050 takes a 3/8" pitch, .058" 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 | 3/8" | .058" | — | — | 138RNDD009 |
| 38cm | 3/8" | .058" / 1.5mm | — | 73DPX056E73EXL056E73LPX056E | 158SFHD009158RNDD009158VXLHD009556286 |
| 40cm | 3/8" | .058" / 1.5mm | — | 73LPX060E73EXL060E | 168SFHD009168ATMD009168RNDD009168VXLHD009 |
| 45cm | 3/8" | .058" / 1.5mm | — | Q73DP068E73LPX068E73DX068E73DPX068EM73LPX068E73EXL068E | 188SFHD009188ATMD009188RNDD009188VXLHD009556288 |
| 50cm | 3/8" | .058" / 1.5mm | — | M73LPX072E73LPX072E73DX072EQ73DP072E73DPX072E73EXL072E | 208SFHD009208ATMD009208RNDD009208SLHD009208VXLHD009556431 |
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 050, including tensioning and maintenance intervals.
- McCulloch parts diagrams — exploded parts diagrams and OEM part numbers.
FAQ
What size chain does a McCulloch 050 take?
The McCulloch 050 runs a 3/8" pitch, .058" gauge chain. Available bar lengths: 33cm, 38cm, 40cm, 45cm, 50cm. Match the drive-link count to your bar (see the table above).
How do I know which gauge my 050 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 050 are .058", .058" / 1.5mm.
Can I put a longer bar on my McCulloch 050?
Oregon lists 33cm, 38cm, 40cm, 45cm, 50cm bars for the 050. Stay within this range — a longer bar than the engine is rated for cuts slowly and accelerates wear.