Description
Sierra’s 18-8004EP-1 Primer Bulb (5/16″) is engineered for reliable fuel priming and consistent engine starting performance in marine applications. Built with high-quality floroelastomer (FKM) materials, it delivers excellent fuel resistance and long-term durability while maintaining a traditional feel and operation. Featuring double check valves with Viton balls and stainless steel springs, it ensures strong fuel flow control and dependable one-way operation. EPA and CARB certified, this primer bulb meets modern emissions standards while complying with ABYC C-1 requirements, making it a trusted choice for marine fuel systems.
Features
- 5/16″ (7.9mm) I.D. primer bulb for marine fuel systems
- Double check valves with Viton balls and stainless steel springs for reliability
- FKM construction for durability and fuel resistance
- EPA and CARB certified, meets ABYC C-1 standards
- Large capacity design with 7.5″ overall length including barbs
- I.D.: 5/16″ or 7.9mm
- Bulb Type: Large Capacity
- Sierra is a leading supplier of primer bulbs to the marine aftermarket
- We use double check valves with viton balls and stainless steel springs
- Both EPA/CARB certified
- Utilizes Floroelastomer (FKM) material for traditional look and operation
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