Sierra 3/8 In EPA Primer Bulb 18-8005EP-1
- Brand:
- Sierra
- Part no:
- 18-8005EP-1
Image: Powerboat Supply
Where to buy
View on Amazonpaid link
Specifications
- Size
- 3/8 in
This Sierra primer bulb, 18-8005EP-1, is a 3/8 inch bulb built to the 2011 EPA rules for low fuel permeation. It is meant to feel like the earlier bulbs it follows. The rubber resists UV, and the check valves use a stainless spring with viton balls so they are less likely to stick. Those are the figures and materials that define it.
Our take
The stainless spring and viton balls in the check valves are what keep this 3/8 inch bulb from sticking, which is the part of a primer that has to work every time you squeeze it. The EPA low-permeation build also keeps fuel vapor in the line.