§ Fitment Guide

Husqvarna 545 chain size & replacement chart

The Husqvarna 545 takes a .325" or 3/8" 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" or 3/8"	.050" / .058"	56	21LGX056G 21LPX056G	130MLBK095 130TXLBK095 138PXLBK095 138RNBK095 138SLBK095 138RNDD009
15"	.325" or 3/8"	.050" / .058"	64	21LPX064G 21LPX064X2	150MLBK095 150TXLBK095 158PXBK095 158PXLBK095 158SLGK095 158RNBK095 158SLBK095 158VXLGK095 158SLHK095 158VXLHD009 158VXLHK095
16"	.325" or 3/8"	.050" / .058"	66	20BPX066G 20LGX066G 20LPX066X2 20LPX066G 95TXL066G M66 21LGX066G 21LPX066X2 21LPX066G J66 73TXL060G	160MLBK095 160RNBK095 160TXLBK095 160VXLGK095 168PXBK095 168PXLBK095 168RNBK095 168VXLGK095 168SFHD009 168ATMD009 168ATMK095 168RNDD009 168RNDK095 168VXLHD009 168VXLHK095 584410 578482 579778
18"	.325" or 3/8" or 325"	.050" / .058"	72	20BPX072G 20LGX072G 20LPX072X2 20LPX072G 95TXL072G M72X3 M72 21BPX072G 21LGX072G 21LPX072G 21LPX072X2 J72 73TXL068G	180MLBK095 180ATMZ095 180MPBK095 180TXLBK095 180VXLGK095 188PXBK095 188SFGK095 188PXLBK095 188RNBK095 188SLGK095 188VXLGK095 188SFHD009 188SFHK095 188ATMD009 188ATMK095 188RNDD009 188RNDK095 188RNDZ095 188VXLHD009 188VXLHK095 188VXLHZ095 39450 584408 578764 579809
20"	.325" or 3/8"	.050" / .058"	78, 80	J78-21 20BPX078G 20LGX078G 20LPX078X2 20LPX078G H78T H78-21 H78 M78-21 M78 M80 21LGX078G 21LPX078G J78 73TXL072G	200TXLBK095 200RNBK095 200VXLGK095 208PXBK095 208RNBK095 208VXLGK095 200ATMZ095 208SFHD009 208ATMD009 208ATMK095 208RNDD009 208RNDK095 208VXLHD009 208VXLHK095 577330 579810
22"	3/8"	.058"	—	—	228RNDD009
24"	3/8"	.058"	—	73TXL084G	248SFHD009 248ATMD009 248RNDD009 248RNDK095
26"	3/8"	.058"	—	—	268RNDD009
28"	3/8"	.058"	—	—	288ATMD009 288RNDD009
30"	3/8"	.058"	—	—	308RNDD009
36"	3/8"	.063"	—	—	363RNDD009
42"	3/8"	.063"	—	—	423RNDD009

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

2PC 8 in Replacement Pole Saw Chain

pitch 3/8 LP · gauge .043" · $20

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 545, including tensioning and maintenance intervals.
Husqvarna parts diagrams (IPL) — exploded parts diagrams and OEM part numbers.

FAQ

What size chain does a Husqvarna 545 take?

The Husqvarna 545 runs a .325" or 3/8" pitch, .050" / .058" gauge chain. Available bar lengths: 13", 15", 16", 18", 20", 22", 24", 26", 28", 30", 36", 42". Match the drive-link count to your bar (see the table above).

How do I know which gauge my 545 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 545 are .050" / .058", .058", .063".

Can I put a longer bar on my Husqvarna 545?

Oregon lists 13", 15", 16", 18", 20", 22", 24", 26", 28", 30", 36", 42" bars for the 545. Stay within this range — a longer bar than the engine is rated for cuts slowly and accelerates wear.