SPI 5/16 In Fuel Line Primer Bulb Assembly with Check Valve for Outboard Motors

5/16" In-Line Fuel Primer Bulb Assembly

Prepare your engine for startup with this 5/16" fuel line primer bulb assembly. Designed primarily for outboard motors, this manually operated bulb moves gasoline from the tank toward the carburetor to prime the engine before starting.

Features & Benefits

• Built-in check valves: Help prevent fuel backflow and retain prime after engine shutdown.
• Rubber squeeze bulb: Provides simple, hand-operated priming.
• In-line design: Installs at a suitable, accessible location along the fuel line between the tank and engine.
• 5/16" hose size: Connects to compatible fuel hose for replacement or installation in an appropriate application.

Outboard Motor, Snowmobile & Small Engine Applications

This universal-style fuel primer bulb is commonly used with outboard boat motors and may also suit snowmobiles, small engines, and other carbureted equipment requiring manual priming. It provides a replacement option for a worn, cracked, or damaged primer bulb when the hose size and application requirements match.

Fitment note: Verify your fuel hose size and engine manufacturer's requirements before ordering. Compatibility depends on the application, not hose size alone.

Brand: SPI
Part Number: 07-238

Note: Image is for reference only, actual product may vary slightly.