Features: New high-quality primer bulb. General primer bulb, Fits for chainsaws, trimmers, brushcutters, blowers. Fits most major brands such as: Compatible with Homelite, Compatible with Echo, Compatible with Ryobi, Compatible with Poulan, Zama, Shindaiwa, mcCulloch, Tanaka etc. For WA, WT, WY, WYJ, WTK, WYL, WYP & WZ carburetors tha use a 3/4" O.D x 9/16" HT primer bulb. Package included: 5 x primer bulbs. Size: Bulb height: 0.55"(14mm). Bulb flange diameter: 0.75"(19mm). Bulb outer diameter: 0.625"(16mm). Bulb inner diameter: 0.55"(14mm). Please be carefully check the goods appearance, size, shape before ordering. Replace part numbers: Replace: 188-12, 188-12-1, 188-14, 188-14-1 Compatible with Zama: 0057030 Compatible with Homelite: 01201 / UP04802 Replace: 4133 121 2700 / 4226-121-2700 Compatible with Poulan: 530035361 Compatible with Echo: 123-181-40630 / 123-181-09560 Compatible with mcCulloch: 225834-00 Compatible with Tanaka: 447-25108-200 Compatible with Shindaiwa: 70029-81480 / 20036-81670 Replacement 188-12 primer Bulb with the following carburetors: WA-167 WA-179 WA-192 WA-193 WA-213 WA-223 WT-100 WT-101 WT-117 WT-132 WT-137 WT-140 WT-150 WT-151 WT-163 WT-164 WT-165 WT-169 WT-173 WT-179 WT-180 WT-181 WT-186 WT-188 WT-191 WT-193 WT-196 WT-199 WT-200 WT-204 WT-206 WT-207 WT-211 WT-212 WT-220 WT-223 WT-227 WT-236 WT-238 WT-241 WT-244 WT-253 WT-255 WT-259 WT-260 WT-264 WT-270 WT-272 WT-273 WT-278 WT-280 WT-292 WT-297 WT-304 WT-305 WT-307 WT-308 WT-314 WT-318 WT-321 WT-329 WT-330 WT-333 WT-344 WT-346 WT-352 WT-354 WT-362 WT-364 WT-365 WT-369 WT-371 WT-386 WT-393 WT-397 WT-40 WT-412 WT-413 WT-415 WT-417 WT-418 WT-419 WT-420 WT-422 WT-423 WT-424 WT-430 WT-431 WT-432 WT-436 WT-440 WT-441 WT-445 WT-447 WT-459 WT-461 WT-467 WT-469 WT-471 WT-486 WT-494 WT-500 WT-512 WT-521 WT-522 WT-532 WT-540 WT-542 WT-543 WT-544 WT-547 WT-551 WT-599 WT-600 WT-602 WT-71 WT-72 WT-763 WT-768