Stihl MS 251 Wood Boss Saw Profile

Basic Information

STIHL MS 251
WOOD BOSS
Model name:MS 251WOOD BOSS®
Engine size:45.6cc
Power output:3.0
2.2
hp
kW
Weight
(powerhead):
10.8
4.9
lb.
kg
Bar length:16″…18″
Chain pitch:.325″
Bar mount:3005

Compatible Bars

Stihl original bars

The MS 251 WOOD BOSS® takes all Stihl guide bars with the small 3005 mount, .325″ pitch and either .050″ or .063″ gauge. The compatible original bars are listed in the table below. Recommended bar lengths are 16″ and 18″; other lengths in parentheses. (Note that Stihl offers a special version of the 18″, .063″ gauge Rollomatic Standard bar with a “Wood Boss” print on it.)

STIHL
3005 mount
.325″ pitch
Length
[in.]
Chain
(rec.)
.050” gauge:23 RM3
Rollomatic
E Standard
16 in
18 in
62
68
.063” gauge:26 RM3
Rollomatic
E Standard
(14 in)
16 in
18 in
56
62
68
Rollomatic
E Standard

(Wood Boss)
18 in68

Oregon bars

Oregon makes MS 251 WOOD BOSS® -compatible guide bars in the A074 mount, .325″ pitch and either .050″ or .063″ gauge. The bars along with a recommended Oregon chain are listed in the table below.

OREGON
A074 mount
.325″ pitch
Length
[in.]
Chain
(rec.)
.050” gauge:
ControlCut™
PXLB
16 in
18 in
20LPX062G
20LPX068G
SpeedCut™
TXLB
16 in
18 in
20LPX062G
20LPX068G
.063” gauge:
ControlCut™
PXLB
16 in
18 in
22LPX062G
22BPX068G
AdvanceCut™
PXB
16 in
18 in
22LPX062G
22BPX068G