PISTON RING COMPATIBLE WITH: HUSQVARNA: 42, 45, 242, 245, 245 R, 245 RX, 246, 343 F, 343 FR, 343 FRM, 343 R, 345, 345 E, 345 R, 345 RX JONSERED: 2045, 2145, BC2145, CS2145, CS2147, FC2145, FC2145 S, FC2145 W, GR44, RS41, RS44 DIAMETER: 42MM THICKNESS: 1.5MM PLEASE NOTE: MANY MODELS WILL HAVE MULTIPLE SIZED PISTONS THAT FIT. PLEASE ENSURE THESE ARE THE CORRECT SIZE FOR YOUR PISTON BEFORE ORDERING.
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