Echo CS-510, CS-520 replacement bar and chain 20" combo

37977 Replacement guide bar and full chisel chainsaw chain for Echo models 510 and 520 saw models.

20 inch .325 pitch .050 gauge Oregon Bar and chain combo 200GLGK041 Oregon Prolite 20 inch bar and upgraded to 20LPX078G full chisel pro chain

This Combo is compatible with  .325 pitch saw models -

 Echo: CS-3600, CS-3900, CS-400, CS-4000, CS-4010, CS-4100, CS-4200, CS-440, CS-4400, CS-4500, CS-460, CS-4600, CS-5000, CS-510, CS-520
Efco: 140S
Homelite: 20AV, 23AV, 25, 27, 3014, 3350, 3800, 3850, 4100, 4150, 4500, 4550, D-4550B, I-3850B, I-4150B, I-4550B, Super 240, Timberman, UT-10896, UT-10910, UT-10927A, UT-10942A, UT-10946A
Husqvarna: 136, 141, 243, 36, 41
John Deere: 300CS, 450V, 45EV, 46EV
Jonsered: 2014, 2016, 2036, 2036 Turbo, 2040, 2040 Turbo, 2041, 2045, 2050, 2050 Turbo, 2141, CS 2145, CS 2150, CS 2152
Poulan/Poulan Pro: 250, 255, 2700, 2750, 2775, 2800, 285, 2900, 295, 3000, 305, 3050, 306SA, 310, 3100, 315, 3300, 335 Predator, 336, 523, PP295CC
Sears: 35020, 35119, 35120, 35121, 35492, 35607, 35624, 35624.2, 35628, 35633
Shindaiwa (SDK): 360, 366, 377, 400, 415, 416, 450, 451, 488, 500

Tanaka: ECS4000, ECS415, ECV-501

Note- Sprocket must be .325 pitch.

Some models are 3/8 pitch and this bar and chain will not fit unless you change to a .325 pitch sprocket.