Rubber Fuel Primer Squeeze Bulb, 1/4" Barbs

Rubber Fuel Primer Squeeze Bulb, 1/4" Barbs

The 6657734 Rubber Fuel Primer Squeeze Bulb is a durable in-line primer pump designed to quickly prime fuel systems in marine, automotive, and small engine applications. Featuring 1/4" (6 mm) barbed fittings and a built-in one-way valve, this squeeze bulb helps start fuel flow efficiently and reliably. Constructed from NBR rubber and aluminum components, it’s built for repeated use and dependable performance.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 6657734
• Product Type: Fuel Primer Squeeze Bulb / Hand Siphon Pump
• Barb Size: 1/4" (6 mm)
• Material: NBR Rubber and Aluminum
• Valve Type: One-way valve design
• Function: Primes fuel systems and assists with fuel transfer
• Application: In-line installation on compatible fuel lines

Application Compatibility

• Outboard and inboard marine engines
• Fuel systems without ESP starting
• Motorcycles, cars, large trucks, helicopters, and other fuel-powered equipment

Installation & Use Notes

• Fuel tank must be positioned higher than the receiving container
• Fuel line must be properly inserted into the tank during operation
• Not intended for use with fuel tanks equipped with anti-theft oil filters

Ideal For

• Priming marine and small engine fuel systems
• Replacing worn or cracked primer bulbs
• Assisting with fuel transfer in compatible systems
• Keeping equipment ready for quick starts after storage