One Way Valve Universal Primer Bulb, 3/8'' - 4Boats
One Way Valve Universal Primer Bulb, 3/8'' - 4Boats
One Way Valve Universal Primer Bulb, 3/8'' - 4Boats
One Way Valve Universal Primer Bulb, 3/8'' - 4Boats

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

MMS-1643

  • Dispatched in 2-3 days
  • 30 Day Return Policy
  • Low stock - 2 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.

Regular price£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 the most items over £150.

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.


Recently viewed

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

Why choose us

Untitled_1080_x_1080_px_1 - 4Boats

ITS ALL ABOUT THE QUALITY

We source the best products from the Top suppliers only. We’ve taken years of feedback and have doubled down on providing the best service.

Untitled_1080_x_1080_px_2 - 4Boats

TEAMWORK MAKES THE DREAMWORK

Our Suppliers and Partners are joining us in our commitment to challenge the way this industry operates. From product sourcing to fulfilling, they’re the best in the business.

Simple_Image_Play_Built_into_Routine_Cosmetics_TikTok_In-Feed_Ad_1080_x_1080_px_10 - 4Boats

YOU MATTER TO US.

All your orders are personally checked by a member of 4 BOATS and we make sure your orders are dispatched quickly so it arrives to your doorstep ASAP