The bar is for occasional woodcutters using small to mid-size saws with professional-type .325" pitch chains.

Fits Echo:
CS-3600
CS-360EVL
CS-3900
CS-4000
CS-400EVL
CS-4100
CS-440
CS-4400
CS-440EVL
CS-450
CS-4500
CS-450P
CS-4600
CS-490
CS-5000
CS-500P
CS-510
CS-520
CS-530
CS-550P
     Hitachi:
CS40EA18
CS51EAP
     Homelite:
25
27
4100
4150
4500
D4550B
I3850B
I4150B
I4550B
Super 240
Timberman
UT10518
UT10519
UT10520
UT10522
UT10526
UT10550
UT10552
UT10896
UT10910
UT10927A
UT10942A
UT10946A
UT10946D
ZR10518
ZR10520
ZR10522
     Husqvarna:
136
141
142
235E
240E
36
41
     John Deere:
300CS
450V
45EV
46EV
CS56
CS62
     Jonsered:
2014
2016
2036
2036 Turbo
2040
2040 Turbo
2041
2045
2050
2050 Turbo
2051
2054
2055
2141
2149
2149 Turbo
2152
370
410
420
425
435
45
450
451
455
49
50
51
510
52
521
525
535
CS2141
CS2145
CS2149 Turbo
CS2150
CS2152 W
CS2153
CS2156
CS2159
CS2159C
CS2159WH
CS2163
CS2240
CS2245
CS2250
CS2250S
CS2252
CS2253
CS2253WH
CS2255
CS2258
CS2260
CS2260WH
     Makita:
DCS430
DCS431
DCS460
DCS510
DCS5121
DCS5200I
DCS520I
DCS540
     McCulloch:
1849AV
2046AV
2049AV
4600
4700
4900
5000
5500
MS1846AV
MS1849AV
MS1850
MS2046AV
MS2046AVCC
MS2049
MS2049AV
MS2049AVCC
MS2050
PM1845AV
ProMac 40
ProMac 46
Silver Eagle 2818
Silver Eagle 3020
Timber Bear 20
     Pioneer:
1074
P-21
P-26
P-28
     Poulan/Poulan Pro:
255
2700
2750
2775
2800
285
2900 Farm Hand
295
3000
305
3050
306SA
310
3100
315
325
3300
335 Predator
336
4600
4620
4620AV
4620AVHD
4620AVX
     Redmax:
G390
G450AVS
G455AVS
G5000
G5000AVS
G5300
     Ryobi:
RY10518
RY10519
RY10520
RY10521
     Sears/Craftsman:
35020
35021
35119
35120
35201
35492
35607
35628
35633
41920
     Shindaiwa:
366
377
400
415
416
446S
450
451
488
488S
490
491s
500
502s
     Stanley Hydraulic:
CS05
CS06
     Tanaka:
ECS-4000
ECS-4000B
ECS-415
ECV-4501
TCS40EA
TCS51EAP
     Troy-Bilt:
TB4620
TB4920
TB5018
TB5020