Chain size

.325" · .050" · 78 DL chain: which saws it fits

A .325" pitch, .050" gauge chain with 78 drive links. It is most often found on 20" bars, and fits 176 chainsaw and pole-saw models from 6 brands in Oregon's fitment data. Bar length alone doesn't decide fit — all three numbers have to match your saw.

Pitch.325"

Gauge.050"

Drive links78

Typical bar20"

Oregon chains in this size: 20BPX078G, 20LGX078G, 20LPX078G, 20LPX078X2

Popular saws that take this chain

Husqvarna 44020" bar Husqvarna 44520" bar Husqvarna 45020" bar Husqvarna 460 RANCHER20" bar

MOROCCA chains in this size

Saw Chains

20" replacement saw chain

$18

Saw Chains

Morocca 2PC 20" Chainsaw Replacement Chain

$34

Confirm it's your size

Read the bar stamp. Near the tail of the guide bar you'll usually find pitch, gauge and drive links, e.g. .325 .050 78. Some bars stamp the Oregon bar number instead — look it up on oregonproducts.com.
Count the drive links on your old chain — the teeth that ride inside the bar groove, not the cutters. It must be exactly 78.
If the stamp is worn off, the owner's manual lists the bar and chain; find it on the manufacturer's support site.

Easy to mix up with

.325" · .050" · 74 DL — same pitch and gauge, shorter loop (usually 18" bars)
.325" · .050" · 80 DL — same pitch and gauge, longer loop (usually 20" bars)
.325" · .058" · 78 DL — same pitch and length, thicker drive links; it won't sit right in a .050" groove

All 176 models, by brand

Husqvarna 83 models

440 20"
445 20"
450 20"
460 RANCHER 20"
36 20"
40 20"
41 20"
42 20"
44 20"
45 20"
49 20"
50 20"
51 20"
55 20"
55 RANCHER 20"
57 20"
133 20"
136 20"
137 20"
141 20"
142 20"
154 20"
234 20"
238 20"
242 20"
242XP 20"
246 20"
254 20"
254XP 20"
257 20"
261 20"
262 20"
262XP 20"
336 20"
338XPT 20"
339XP 20"
340 20"
340E 20"
340SE 20"
340SG 20"
345 20"
346 20"
346XP 20"
346XP E-TECH 20"
346XPG 20"
350 20"
351 20"
353 20"
353E-TECH 20"
353G E-TECH 20"
355 20"
357 20"
357XP 20"
357XPG 20"
359 20"
359E-TECH 20"
360 20"
362 20"
362 XP 20"
435 20"
435e 20"
440e 20"
444 20"
445e 20"
450 50th Anniversary 20"
450e 20"
455 20"
455 RANCHER 20"
455e RANCHER 20"
460 20"
466 20"
543XP 20"
543XPG 20"
545 20"
545 MARK II 20"
550XP 20"
550XP MARK II 20"
550XPG 20"
555 20"
560XP 20"
560XPG 20"
1400 20"
1600 20"

ECHO 27 models

CS-400EVL 20"
CS-440 20"
CS-440EVL 20"
CS-450 20"
CS-450P 20"
CS-490 20"
CS-500P 20"
CS-501 20"
CS-501P 20"
CS-501P-20 20"
CS-510 20"
CS-520 20"
CS-530 20"
CS-550P 20"
CS-3600 20"
CS-3900 20"
CS-4000 20"
CS-4100 20"
CS-4400 20"
CS-4500 20"
CS-4510 20"
CS-4600 20"
CS-4910 20"
CS-4910-20AA 20"
CS-4920 20"
CS-4920-20 20"
CS-5000 20"

Poulan 24 models

285 20"
295 20"
305 20"
306 SA 20"
310 20"
315 20"
325 20"
335 Predator 20"
336 20"
2700 20"
2750 20"
2775 20"
2800 20"
2900 20"
3000 20"
3050 20"
3100 20"
3300 20"
4600 20"
4620 20"
4620 AV 20"
4620 AVHD 20"
4620AVX 20"
FARM HAND (2900) 20"

Craftsman 22 models

Makita 15 models

Ryobi 5 models

RY5020 20"
RY10518 20"
RY10519 20"
RY10520 20"
RY10521 20"

Source: Oregon part-finder fitment data, retrieved 2026-07-06. We list a model here when Oregon recommends a .325" · .050" · 78 DL chain for one of its bar lengths; we haven't fitted each saw ourselves. Some bar configurations in the source don't give a drive-link count and aren't included — if your saw isn't listed, count your chain.