Includes (10) 545160401 Piston RingsNew, Bulk PackedGenuine OEM Replacement Part # 545160401-10PKConsult owners manual for proper part number identification and proper installationPlease refer to list for compatibilityCompatible with the following: Poulan: 1950, 1950, 1950LE, 1950LE, 1975, 1975, 1975LE, 1975LE, 2050, 2050, 2050, 2050, 2050, 2050, 2050, 2055, 2055, 2050LE, 2050LE, 2050WT, 2050WT, 2050WT, 2050WT, 2050WT, 2050WT, 2050WT, 2055LE, 2055LE, 2075, 2075 LE, 2075C, 2075OC, 2150, 2150, 2150, 2150, 2150, 2150, 2150, 2150LE, 2150LE, 2150LE, 2150LE, 2155, 2155, 2155, 2155, 2155, 2175, 2175, 2175, 2175, 2175, 2175, 2175, 2175, 2175, 2250, 2250, 2250LE, 2350, 2375, 2375, 2375, 2375, 2375, 2375, 2375, 2375LE, 2375LE, BH2160, BH2160LE, P3314, P3314, P3314WS, P3314WS, P3314WSA, P3314WSA, P3416, P3416, P3516PR, P3516PR, P3818AV, P3818AV, P4018, P4018AV, P4018AV, P4018AV-BH : P4018AV-BH, P4018WM, P4018WM, P4018WT, P4018WT, P4018WTL, PP3516, PP3816, PP3816AV, PP4018, PP4218AV, PP4218AVHD, PP4218AVL, PPB3416, PPB4018, S1970, S1970, SM4218AV : 2550T, 2450, 2450, 2450, 2450, 2450, 2450, 2450, 2550, 2550, 2550, 2550, 2550, 2550, 2550, 2550LE, 2550SE, 2550SE, 2555FLW, SM4018, PP3516AVX, PP4218AVX, 220le, 260 Pro, PP4218, PP4218, PP220, PP220LE Pro