Two Pack Hand Primer Bulbs For Fuel Transfer Rubber One Way Vacuum Fuel Line Valve Fuel Pump Hose For Marine Boats Six Millimeter Three Eighths Inch Fit For Gasoline Diesel Petrol

Dual Pack Hand Fuel Primer Bulbs for Fuel Lines 6mm/3/8in
✔️ 2x 10mm fuel primer bulbs; 150x42mm, carburettor/low-pressure fit

These two fuel primer bulbs are designed to prime fuel lines in carburettor and low‑pressure fuel systems, commonly used on small boats, outboard engines, and portable transfer setups.

✅ 2x fuel primer bulbs, 10mm (3/8") fitment for carburettor and low-pressure systems
✅ Dimensions: 150 x 42 mm (5.91 x 1.65 in)
✅ Interface sizes support 10 mm and 11 mm fittings
✅ Material: rubber with metal components; color: black
✅ Weight: 164 g per pack

💡 What is a fuel primer bulb used for in marine fuel transfer systems?

These handy devices push fuel through lines to prime the system quickly and maintain steady fuel flow.

- Priming improves fuel delivery to carburetors and other low-pressure circuits - Helps prevent air pockets and vapor lock during operation - Built for marine use with rubber and metal components