Large One Way Valve Universal Primer Bulb, 5/16'' - 4Boats
Large One Way Valve Universal Primer Bulb, 5/16'' - 4Boats
Large One Way Valve Universal Primer Bulb, 5/16'' - 4Boats
Large One Way Valve Universal Primer Bulb, 5/16'' - 4Boats
Large One Way Valve Universal Primer Bulb, 5/16'' - 4Boats
Large One Way Valve Universal Primer Bulb, 5/16'' - 4Boats
Large One Way Valve Universal Primer Bulb, 5/16'' - 4Boats
Large One Way Valve Universal Primer Bulb, 5/16'' - 4Boats

Large One Outboard Primer Bulb 8 mm (5/16 in) One-Way | 4Boats

mms-4280

  • Dispatched in 2-3 days
  • 30 Day Return Policy
  • Low stock - 3 items left
  • Backordered, shipping soon
Our stock levels are dynamic and can change frequently. If a product appears to be in stock, it may have already sold out. Please contact us if you have any questions about availability. Thank you for your understanding.
£14.99
/
Tax included.

Large One universal one-way primer bulb for 8 mm (5/16 in) fuel hose, designed for outboard engines and compatible with ethanol-blended fuels.

  • Fits 8 mm (5/16 in) fuel line hose
  • One-way valve; molded directional arrow indicates proper fuel flow
  • Bulb design resists collapsing under vacuum and ballooning under pressure
  • Use stainless steel clamps (not included) for secure, leak-free installation
  • Marine-grade aftermarket part; interchangeable with equivalent outboard primer bulbs

Please check the part against your existing item before purchase and ask if unsure; compatibility is the buyer's responsibility. See our compatibility guide for help.

For the products under £150 the shipping is £6.99.

Free delivery for the most items over £150.

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