Fits
Many Husqvarna, Craftsman, Jonsered, AYP models to include 137, 142, 240 and many others.

Craftsman Cordless Electric 98023
DeWalt DCCS620, DCCS620B, DCCS620P1 20V MAX Compact Cordless 16-Inch Chainsaw.
Dolmar 100, 101, 102, 103, 104, 105, 108, ES-161, ES-171, ES-173A, PS-32, PS-34, PS-35, PS-45, PS-340, PS-341, PS-350, PS-400, PS-401, PS-420, PS-3300TH, PS-3410TH, PS-3410TH TLC
Echo CS-280E, CS-290, CS-300, CS-300EVL, CS-301, CS-302, CS-02S, CS-305, CS-306, CS-310, CS-315, CS-220EVL, CS-330MX4, CS-330T, CS-340, CS-341, CS-345, CS-346, CS-351, CS-352, CS-352, CS-355T, CS-360, CS-370, CS-370T, CS-400, CS-400F, CS-3000, CS-3400, CS-3450, ECS-2000, ECS-3000
Husqvarna 23, 36, 41, 136, 137, 141, 142, 235, 235E, 236, 240, 240E, 536 LiPX
John Deere 25EV, 28, 28V, 30, 30V, 35, 35V, 40V, 200CS, 230CS, CS36, CS36LE, CS40, CS40LE, CS40V, J3816
Ryobi RY40510B (9045), RY40502 RY40511
Makita HCU02C1 HCU02ZX2 XCU02 12" 124MLEA041 / 90PX045G
Tanaka ECS-35, ECS-290, ECS-300, ECS-320, ECS-330, ECS-350, ECS-351, ECS-355, ECS-356, ECS-370, ECS-405, ECS-3301, ECS-3351, ECS-3401, ECS-3500, TCS-33EB, TCS-3301PFS, TCS-3351PFS, TCS-3401
Worx WG380, WG380.9

Pitch: 3/8" LP
Gauge: .043"
Drive Links: 56 DL
Bar Length: 16" 

Replaces OEM:
596007956 HL186-56