Sprockets – Application by Oregon® Number
Oregon Part Number Bearing 522963X 21940 523524X 37511
Additional Components
Pitch – Drive Teeth Chainsaw Model
Sprocket Type
Husqvarna: 334T, 335, 335XP, 336, 338, 338XPT, 339, 339XP
Consumer Spur Consumer Spur Consumer Spur
3/8" (91) – 6 3/8" (91) – 6
Echo: CS-370, CS-400
Homelite: 20, 23, 27, 2500, 2700, 3300, 3350, 3800, 3816, 3850, 4550, i3850b, i4150b, i4550b, PS-33, Timberman, UT10901, UT10910, UT10926
524076
37325
.325" – 7
Echo: CS-302, CS-315, CS-330EVL, CS-351 Echo: CS-280e, CS-280ep, CS-290, CS-300EVL
544554 544555 544658X
22152 22152
Consumer Spur Consumer Spur
1/4" – 8 1/4" – 8
Stihl: 017, 018, 019, 019T, 021, 023, 025, MS 170, MS 171, MS 180C, MS 181, MS 181C, MS 210, MS 211, MS 211C, MS 230, MS 250, MS 250C Echo: CS-300, CS-301, CS-303T, CS-305, CS-306, CS-330MX4, CS-330T, CS-340, CS-341, CS-345, CS-346, CS-355T, CS-360T, CS-361P, CS-3000, CS-3350, CS-3400, CS-3450 Stihl: 017, 018, 019, 019T, 021, 023, 025, MS 170, MS 171, MS 180C, MS 181, MS 181C, MS 210C MS 210, MS 211, MS 211C, MS 230, MS 250, MS 250C
Power Mate SM7 1/4" – 9
544675X
Consumer Spur
1/4" – 8
4
544676X
37325
Consumer Spur
1/4" – 8
Stihl: 009, 010, 011
544677X 544678X 544679X
Consumer Spur Consumer Spur
1/4" – 8 1/4" – 8
Husqvarna: 334T, 335, 335XPT, 336, 338XPT, 339XP
37511 37507
Echo: CS-300, CS-301, CS-303T, CS-305, CS-306, CS-330MX4, CS-330T, CS-340, CS-341, CS-345, CS-346, CS-355T, CS-360T, CS-361P, CS-3000, CS-3350, CS-3400, CS-3450 Oregon: CS250-S6, CS250-E6, CS250-A6, CS300, CS300-A6, CS300-E6
Power Mate SM7 1/4" – 9
546622 552412
Consumer Spur
3/8" – 6
Husqvarna: 36, 41, 136, 137, 141, 235E, 240E Poulan: P600 Husqvarna: 36, 41, 136, 137, 141, 235E, 236, 240E Poulan: P600
37325
Power Mate SM7 1/4" – 9
552665
37325
Consumer Spur
1/4" – 8
Husqvarna: 435, 435E, 440, 440E Stihl: MS200T, MS 201T, MS 201C-E
553995 554045X 570964 571043 577331
31153 37511
Consumer Spur Consumer Spur Consumer Spur Consumer Spur
3/8" (91) – 6
1/4" – 8
Oregon: CS1500 Oregon: PS250
3/8" (91) – 6 3/8" (90) – 7
Husqvarna: 435, 435E, 440, 440E Jonsered: CS2240, CS2240s Husqvarna: 435, 435E, 440, 440E Jonsered: CS2240, CS2240s
31153
Pro Spur
.325" – 7
582642
31153
Power Mate SM7 .325" – 7
SpeedCut™ Nano Sprockets NOTE: these sprockets must be used with the corresponding SpeedMax Nano guide bar and 80TXL saw chain as a system — they’re not compatible with other cutting systems. Refer to the Applications Chart earlier in this section for more details. 610725 SpeedCut Nano .325" (80) – 7 Stihl: MS201T, 200, 193T, 192 610726 SpeedCut Nano .325" (80) – 7 Stihl: MS180, 170, 171 610727 SpeedCut Nano .325" (80) – 7 Stihl: MS150 610728 SpeedCut Nano .325" (80) – 7 Husqvarna: 540 610729 SpeedCut Nano .325" (80) – 7 Husqvarna: T435 610730 SpeedCut Nano .325" (80) – 7 Husqvarna: T536LiXP
W = Washer DC = Dust Cover NS = Neoprene Seal PD = Oil Pump Driver BU = Bushing RR = Retainer Ring
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Sprockets – Application by Oregon® Number
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