BBTO four-pack primer bulbs for reliable marine fuel transfer
BBTO primer bulb close-up highlighting durable aluminum and NBR
BBTO hand siphon pump demonstrates easy priming action
BBTO marine primer bulb assembly ready for engine fuel lines
BBTO primer bulb in use on a boat's fuel line
BBTO 8 mm primer bulb ideal for steady flow
BBTO four-pack replacement bulbs for spare fuel systems
BBTO four-pack primer bulbs for reliable marine fuel transfer
BBTO primer bulb close-up highlighting durable aluminum and NBR
BBTO hand siphon pump demonstrates easy priming action
BBTO marine primer bulb assembly ready for engine fuel lines
BBTO primer bulb in use on a boat's fuel line
BBTO 8 mm primer bulb ideal for steady flow
BBTO four-pack replacement bulbs for spare fuel systems

BBTO 4-Pack Black Primer Bulb Fuel Pumps for Marine Siphon, 5/16 inch (8 mm)

BBTO 4-Pack Black Primer Bulbs for Marine Fuel Transfer Designed for busy watercraft and diverse fuel systems,...
Vendor: BBTO
Availability: In stock
£30.07
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BBTO four-pack primer bulbs for reliable marine fuel transfer

BBTO 4-Pack Black Primer Bulb Fuel Pumps for Marine Siphon, 5/16 inch (8 mm)

£30.07
BBTO four-pack primer bulbs for reliable marine fuel transfer
BBTO primer bulb close-up highlighting durable aluminum and NBR
BBTO hand siphon pump demonstrates easy priming action
BBTO marine primer bulb assembly ready for engine fuel lines
BBTO primer bulb in use on a boat's fuel line
BBTO 8 mm primer bulb ideal for steady flow
BBTO four-pack replacement bulbs for spare fuel systems

BBTO 4-Pack Black Primer Bulb Fuel Pumps for Marine Siphon, 5/16 inch (8 mm)

£30.07
Description
Description
x

BBTO 4-Pack Black Primer Bulbs for Marine Fuel Transfer

Designed for busy watercraft and diverse fuel systems, the BBTO four-pack pairs a durable aluminum body with flexible NBR material. The result is a tactile, reliable hand siphon experience that fits common fuel lines and supports repeated priming with controlled effort. The compact form and balanced diameter help you manage transfer tasks without added complexity, making it a practical add-on for boats, ships, and off-season storage.

What You Get

  • Four black primer bulbs ready for immediate use or replacement
  • Durable aluminum construction paired with NBR sealing for longevity
  • One-way valve design to help initiate fuel flow efficiently
  • Universal 8 mm (5/16 inch) diameter to fit a wide range of lines

Versatile Applications

  • Fits outboard and inboard engine fuel supply lines on boats and ships
  • Suitable for various fuel systems in cars, motorcycles, trucks, and other vehicles
  • Useful for quick on-board fuel transfers and line priming in remote locations

Usage Tips and Best Practices

  • Insert the pipe into the fuel tank when pumping for smooth operation
  • Ensure the fuel tank height is higher than the associated drum height to maintain prime
  • Prime with steady squeezes to maintain a consistent flow without overexertion

Sizing and Fit

Each primer bulb has an 8 mm (5/16 inch) diameter, offering a balanced flow rate that is easy to manage for regular maintenance and occasional use alike.

FAQ

Q: What is included in the BBTO 4-Pack Primer Bulb set?

A: The set includes four black primer bulbs sized 5/16 inch (8 mm) for marine fuel transfer.

Q: How should BBTO primer bulbs be used safely?

A: Follow basic usage notes: insert the pipe into the fuel tank during pumping, and keep the fuel tank higher than the oil drum.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

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Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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