HIPA Carburetor Rebuild Kit RB-129 Assembly for Poulan Pro PP3516 PP3516AVX PP3816 PP3816AV PP4018 PP4218 PP4218AV PP4218AVHD PP4218AVL PP4218AVX PPB3416 PPB4018 PPB4218 SM4218AV Gas Saw Replacement manufacturer part number: RB-129 Fitment models: ZAMA C1M-W26 C1M-W26A C1M-W26B C1M-W26C C1M-W47 Fits following Poulan chainsaw models that equipped with ZAMA C1M-W26 (W-26) carburetor