Universal black marine primer bulb with one-way valve, boat fuel accessory from 4Boats
Black universal boat primer bulb with one-way valve and metal clamp for marine fuel systems
Boat fuel primer bulb one-way valve with hose clamp, marine accessory from 4Boats UK
Diagram of a one-way valve universal primer bulb for boats, with 3/8 inch connections, sold by 4Boats.
Universal black marine primer bulb with one-way valve, boat fuel accessory from 4Boats
Black universal boat primer bulb with one-way valve and metal clamp for marine fuel systems
Boat fuel primer bulb one-way valve with hose clamp, marine accessory from 4Boats UK
Diagram of a one-way valve universal primer bulb for boats, with 3/8 inch connections, sold by 4Boats.

One-Way Universal Primer Bulb 10 mm (3/8'') | 4Boats

MMS-1643

  • Dispatched in 2-3 days
  • 30 Day Return Policy
  • Low stock - 1 item 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.
£17.99
/
Tax included.

One-Way universal primer bulb for marine fuel lines — fits 10 mm (3/8'') hose and provides reliable one-way priming for outboards and inboards.

  • Fits 10 mm (3/8'') fuel line
  • Compatible with ethanol-blended fuels
  • One-way valve ensures correct flow direction
  • Resists collapsing under vacuum and expansion under pressure
  • Use with stainless-steel hose clamps (sold separately) for leak-free installation
  • Marine-grade aftermarket quality
  • Simple to install and replace

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

Free delivery for most items over £150.

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Every order is checked by the 4Boats team. Contact us before ordering if you need help with part numbers, compatibility or availability.