HIPA Replace Primer Bulb 188-12 188-14 for ECHO 123181140630 1238140650 Homelite 01201 UP-04802 McCulloch 225834-00 Shindaiwa 20036-81670 Stihl 4133 121 2700 Chainsaw String Trimmer Edger I.D x O.D x HT: 0.512" x 0.75" x 0.56" For carburetors tha use a 3/4" O.D, 9/16" height primer bulb Fits 188-12 188-12-1 188-14 188-14-1 Fits ECHO 123181140630 1238140650, Homelite 01201 UP-04802 McCulloch 225834-00, Shindaiwa 20036-81670, Stihl 4133 121 2700