Four Pack Black Primer Bulb Rubber Fuel Transfer Siphon Hand Pump For Marine Gas Lines And Outboard Engines, 5/16 Inch 8mm Fittings, Durable Aluminum And NBR Construction

Four-Pack Black Primer Bulb Siphon Pumps with 5/16in Fittings
✔️ Durable aluminum & NBR, 8 mm (5/16 in) fittings, 4 pieces

These hand siphon pumps prime and transfer fuel in marine and vehicle fuel systems. They’re built from durable aluminum and NBR, and are typically used with outboard engines and other engines that require manual fuel priming.

✅ 4 pieces per pack
✅ 8 mm (5/16 in) fittings compatibility
✅ Aluminum and NBR construction for durability
✅ One-way valve design helps start fuel system quickly

💡 What is a handy use for a hand pump primer bulb in marine fuel systems? - Handy for priming fuel lines and starting engines quickly in marine fuel systems - Commonly used with outboard and inboard engines and other manual fuel priming scenarios on boats, ships, motorcycles, and cars - Helps eliminate air pockets and ensure steady fuel flow to carburetors and injectors - Useful when ESP starting isn't available or during priming before operation of marine engines