4PCS Black Fuel Hand Primer Bulb Boat Car RV Marine 8mm 5/16''

Frequently used as a hand pump in boats for fuel supply to the out-board engine. Suitable for boats, RVs, tractors, and caravans. Exclusive check valves allow priming in multiple orientations without restricting fuel flow. Compatible with Ethanol blended fuels. 

Length (overall): 5 3/4"
Width: 1 5/8"
Connector: 5/16"(8mm)
Material: rubber and aluminum 
Color: Black 
Engine Type : Diesel，Gas, petro

Item: PDSA0151-8X4

Total 4 pcs.