6 PACK PRIMER BULBS SMALL Fits Homelite Echo Fits Stihl Fits Walbro 188-12 model-Zaxis470LC-5B a 10-tooth drive gear

a 10-tooth drive gear

Onan P-Series Engines (16-20 HP): P216

PR550N21RX

with an outside circumference of approximately 211

BIG MO 400

6 PACK PRIMER BULBS SMALL Fits Homelite Echo Fits Stihl Fits Walbro 188-12 model-Zaxis470LC-5B a 10-tooth drive gearSix New Aftermarket Replacement Primer Bulb Fits the following: Fits Husqvarna Cut off Saws: K750 & K760 and many other Chainsaws, Blowers, Hedge Trimmers and String Trimmers. Fits Walbro Carburetors: WT 23A, WYJ 33, WYJ 34, WYJ 45, WYJ 92, WYJ 94, WYJ 86 Fits Makita Dolmar Cut off Saw: EK7651H Tech Info: Outside Diameter: 7 8" Height: 1 5 16" Replaces Part Numbers: AYP: 47721 Echo: 12318110860, 123181 26030, 12318126030, 123 181 39130, 12318139130,