§ Fitment Guide

Husqvarna 257 chain size & replacement chart

The Husqvarna 257 takes a .325" pitch, .050" / .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
13"	.325"	.050" / .058"	56	21LGX056G 21LPX056G	130MLBK095 130TXLBK095 138PXLBK095 138RNBK095 138SLBK095
15"	.325" or 3/8"	.050" / .058"	64	21LPX064G 21LPX064X2	150MLBK095 150TXLBK095 158PXBK095 158PXLBK095 158SLGK095 158RNBK095 158SLBK095 158VXLGK095 158SLHK095 158VXLHK095
16"	.325" or 3/8"	.050" / .058"	66, 60	20BPX066G 20LGX066G 20LPX066X2 20LPX066G 95TXL066G M66 21LGX066G 21LPX066X2 21LPX066G J66 72EXL060X2 D60 E60 72TXL060G 72EXL060G 72LPX060G 73TXL060G 73EXL060G 73LPX060G	160MLBK095 160RNBK095 160TXLBK095 160VXLGK095 168PXBK095 168PXLBK095 168RNBK095 168VXLGK095 160RNDK095 168ATMK095 168RNDK095 168VXLHK095 584410 578482 579778
18"	.325" or 3/8" or 325"	.050" / .058"	72, 68	20BPX072G 20LGX072G 20LPX072X2 20LPX072G 95TXL072G M72X3 M72 21BPX072G 21LGX072G 21LPX072G 21LPX072X2 J72 72EXL068X2 D68 E68 72TXL068G 72EXL068G 72LPX068G 73EXL068G 73LPX068X2 73TXL068G 73LPX068G	180MLBK095 180ATMZ095 180PXBK095 180MPBK095 180TXLBK095 180VXLGK095 188PXBK095 188SFGK095 188PXLBK095 188RNBK095 188SLGK095 188VXLGK095 180RNDK095 180VXLHK095 188SFHK095 188ATMK095 188RNDK095 188RNDZ095 188VXLHK095 188VXLHZ095 39450 584408 578764 579809
20"	.325" or 3/8"	.050" / .058"	78, 72	J78-21 20BPX078G 20LGX078G 20LPX078X2 20LPX078G M78-21 M78 21LGX078G 21LPX078G J78 72V072G 72EXJ072G 72EXL072X2 D72-21 D72 E72X3 E72 72TXL072G 72TXL072X2 72CJ072G 72EXL072G 72LPX072G 72LPX072X2 72DPX072G 73LPX072X2 73TXL072G 73EXJ072G 73EXL072G 73EXL072X2 73LPX072G	200PXBK095 200TXLBK095 200RNBK095 200VXLGK095 208PXBK095 208RNBK095 208VXLGK095 200ATMK095 200ATMZ095 200RNDK095 200VXLHK095 208ATMK095 208RNDK095 208VXLHK095 584271 577330 579810 584818
24"	3/8"	.050" / .058"	84	72EXL084X2 72TXL084G 72TXL084X2 72CJ084G 72EXJ084G 72EXL084G 72LPX084G 72LPX084X2 72DPX084G 73EXL084G 73EXL084X2 73LPX084X2 73LPX084G 73TXL084G 73EXJ084G	240RNDK095 248RNDK095
28"	3/8"	.050" / .058"	93	72LPX093G 72TXL093G 72CJ093G 72EXJ093G 72EXL093G 73EXL093G	280RNDK095

Source: Oregon part-finder, 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

Saw Chains

20" replacement saw chain

pitch 3/8 · gauge .050" · $22

Saw Chains

Morocca 2PC 20" Chainsaw Replacement Chain

pitch .325 · gauge .050" · $34

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.

Measuring a chainsaw chain's gauge with a caliper

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 Husqvarna resources

Husqvarna manuals & downloads — owner's manual for the 257, including tensioning and maintenance intervals.
Husqvarna parts diagrams (IPL) — exploded parts diagrams and OEM part numbers.

FAQ

What size chain does a Husqvarna 257 take?

The Husqvarna 257 runs a .325" pitch, .050" / .058" gauge chain. Available bar lengths: 13", 15", 16", 18", 20", 24", 28". Match the drive-link count to your bar (see the table above).

How do I know which gauge my 257 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 257 are .050" / .058".

Can I put a longer bar on my Husqvarna 257?

Oregon lists 13", 15", 16", 18", 20", 24", 28" bars for the 257. Stay within this range — a longer bar than the engine is rated for cuts slowly and accelerates wear.