1077
Spur Sprocket
Power Mate® System
Small 7 (SM7)
Standard 7 (SD7)
Crankshaft Diameter
Drive Teeth
Rim
OEM
Chainsaw Model
Pitch
OLEO-MAC (OLYMPYK) 938 941 942 945 946
.325"
7
106068X
11892C
0.472"
947 951 952 956 962
.325" .325" .325" .325"
7 7 7 7 7 7 7 7 7
11892C 11892C 11892C 11892C 68210C 68210C 68210C 22270C 68210C
0.472" 0.472" 0.472" 0.500"
106068X
100758X
3/8" 3/8" 3/8"
100757
965HD
0.500" 0.551"
970 980
999F
.404"
099900387 097000207
GS820
3/8"
OREGON CS250-S6 CS250-E6 CS250-A6 CS300 CS300-E6 CS300-A6
3/8" (91)
6
546622
CS1500 PS250
3/8" (91) 3/8" (90)
6 7
570964 571043
PARTNER 22
3/8" (91)
6
28001
0.394"
330 350 351 365
3/8" (91) 3/8" (91)
6 6 7 7 6 7 7 7 7
106114F 41569X 106656X
0.394" 0.394"
.325" .325"
41726XSF
11892C 11892C
400 405
35641X
0.500" 0.394"
3/8" (91)
41569X
.325" .325"
106656X
41726XSF
11892C 11892C 68210C 11892C
410 421
35641X
0.500" 0.551" 0.500"
3/8"
450 460 490 510 1612 1613 1614 1616 7000 F55 F65
.325"
35641X
3/8" (91)
6
28001
0.394"
3/8"
7
68210C
0.551"
Mini P3 Mini P
3/8" (91)
6
28001
0.394"
P-100 (after March 1977)
3/8"
7 6 7 8 7 7 7 7 6
68210C
0.551" 0.394"
P2 P3
3/8" (91)
28001
P400 P500 P545 P5000 P5100
.325"
29175XSF
11892C 11891C 18720C 68210C 68210C 68210C
0.500"
3/8"
34425X
P70
3/8" 3/8"
0.551" 0.551" 0.394"
P-85
PA
3/8" (91)
28001
Part numbers listed in red are obsolete. Contact your authorized Oregon distributor for availability.
2025
TechnicalServices@OregonProducts.com 1.800.223.5168
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