HIPA (pack of 10) Primer Bulb for HONDA GX22 GX25 GX35 GX25NT GX25N GX35NT HHT25S HHT31S UMK422 UMK422K1 UMK431 Trimmer Brush Cutter 16032-ZM3-004 Replacement manufacturer part number: 16032-ZM3-004 HONDA GX22 GX25 GX25NT GX25N GX35 GX35NT engine FG100 FG110 rototiler rototiller HHE31C stick edger HHT25S HHT31S UMK422 UMK422K1 UMK431 trimmer / brush cutter