The 188-11 primer bulb is smaller than 188-12-1 and a suitable replacement to be used on a Ryobi 890r Brushcutter 4-cycle engine. The only major difference is the original primer bulb was taller (0.50 inches) than the 188-11.
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Good part
April 12, 2016
Reviewer:
John Jernigan from Jacksonville, FL United States