Product Description
Oregon Primer Bulb for Walbro 188-509 / 55-189
Replaces the following OEM Part Numbers:
Walbro 188-509
Fits model HDA-51, WA-180, WA-181,
WA-184 WA-185, WA-187, WA-194, WT139,
WT-145, WT-184, WT-243, & WT50 carburetors
Oregon Part Number: 55-189