Description
Overview
The Fuel Primer Bulb Suits 8 & 10 mm Hose (Part No. RWB4675) is a premium, extra-large primer bulb designed to move fuel quickly and reliably. Because the larger chamber delivers higher flow, starting becomes easier and refuelling lines purge faster. It suits both 8 mm and 10 mm fuel hose, and it arrives in clamshell packaging ready for shelf or pegboard display. For the manufacturer’s summary and sizing note, see RWB Marine’s product page.
Features
- High-flow, extra-large bulb for faster priming and easier cold starts
- Compatible with both 8 mm (5/16″) and 10 mm (3/8″) fuel hose
- Solvent- and UV-resistant construction for marine environments
- Dual-check-valve style commonly used to prevent back-flow and hold prime
Specifications and Materials
| Specification | Detail |
|---|---|
| Part Number | RWB4675 |
| Hose Compatibility | 8 mm and 10 mm fuel hose |
| Bulb Type | High-flow, extra-large primer bulb |
| Packaging | Clamshell retail pack |
Compatibility and Fitment
This fuel primer bulb suits outboard fuel systems that use 8 mm or 10 mm line. Therefore, you can fit it to common portable tanks, quick-connect fuel assemblies, and replacement hose kits. Always install with the flow arrow pointing toward the engine. In addition, secure the hose with quality clamps and check for air leaks after installation.
Compliance and Safety
Use only with petrol where specified by the manufacturer. Because many primer bulbs are not rated for diesel or ethanol-blended fuels, confirm your fuel type before use and inspect regularly for swelling, hardening, or surface cracking. Replace any bulb that shows damage, loses prime, or allows fuel to drain back toward the tank.
Marine Applications
The RWB4675 primer bulb is well suited to small craft, tenders, and trailer boats. Moreover, the higher flow helps purge lines after storage, which reduces cranking time and improves reliability. It is also useful after filter changes, hose replacements, or any service that introduces air into the fuel system.
Why Choose Argomarine
Argomarine prioritises proven marine hardware that installs cleanly and performs under real conditions. With the RWB4675, you get a clearly labelled, high-flow primer bulb that works across 8 mm and 10 mm hose sizes, supported by straightforward fitment guidance and fast shipping.
Browse compatible fuel lines, clamps, and fittings in our Engine and Service Parts category.
