Sierra 18-8004-10EP-1 Primer Bulb 5/16 Inch Fuel Line 10 Pack

The Sierra 18-8004-10EP-1 is a 10-pack of universal marine fuel primer bulbs designed for 5/16-inch fuel lines. These EPA-compliant primer bulbs meet 2011 federal regulations for low permeation of fuel while maintaining the familiar look and feel of previous generation bulbs.

Key Features:

• EPA compliant for low fuel permeation standards
• 5/16-inch fuel line connection size
• Superior resistance to UV rays, ozone, and ethanol-enhanced fuels
• Check valves feature stainless steel springs and Viton balls to resist sticking
• Durable construction for long-lasting marine use
• Convenient 10-pack for bulk replacement or maintenance

These primer bulbs are essential components in marine fuel systems, allowing manual priming of the fuel line before engine start-up. The advanced materials provide excellent chemical resistance and durability in harsh marine environments. Perfect for outboard motors, portable fuel tanks, and other marine applications requiring reliable fuel priming.